CEO.CA SEDI filings for

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Date	Issuer	Insider	Transaction	Amount	New Balance ⓘ The balance of securities held by registered holder at the time of the transaction. Insiders may direct multiple registered holders and hold multiple security types.
Filed 2024-04-22 19:13 Tx date 2024-04-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-17,127.0837 -28,389 vol $0.60 each	27,585,100
Filed 2024-04-22 19:12 Tx date 2024-04-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-23,445.6314 -38,798 vol $0.60 each	27,613,489
Filed 2024-04-22 19:11 Tx date 2024-04-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-4,560.168 -7,570 vol $0.60 each	27,652,287
Filed 2024-04-22 19:11 Tx date 2024-04-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-2,556.5032 -4,258 vol $0.60 each	27,659,857
Filed 2024-04-22 19:10 Tx date 2024-04-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-9,627.5924 -15,614 vol $0.62 each	27,664,115
Filed 2024-04-22 19:09 Tx date 2024-04-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-971.9163 -1,611 vol $0.60 each	1,565,323
Filed 2024-04-22 19:07 Tx date 2024-04-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-1,330.6686 -2,202 vol $0.60 each	1,566,934
Filed 2024-04-22 19:06 Tx date 2024-04-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-259.032 -430 vol $0.60 each	1,569,136
Filed 2024-04-22 19:06 Tx date 2024-04-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-145.2968 -242 vol $0.60 each	1,569,566
Filed 2024-04-22 19:05 Tx date 2024-04-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-546.3076 -886 vol $0.62 each	1,569,808
Filed 2024-04-12 20:46 Tx date 2024-04-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-58,951.2768 -95,576 vol $0.62 each	27,679,729
Filed 2024-04-12 20:45 Tx date 2024-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-2,905.448 -4,732 vol $0.61 each	27,775,305
Filed 2024-04-12 20:45 Tx date 2024-04-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-27,535.0916 -44,476 vol $0.62 each	27,780,037
Filed 2024-04-12 20:44 Tx date 2024-04-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-2,665.508 -4,258 vol $0.63 each	27,824,513
Filed 2024-04-12 20:43 Tx date 2024-04-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-3,345.5232 -5,424 vol $0.62 each	1,570,694
Filed 2024-04-12 20:42 Tx date 2024-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-164.552 -268 vol $0.61 each	1,576,118
Filed 2024-04-12 20:42 Tx date 2024-04-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-1,562.6084 -2,524 vol $0.62 each	1,576,386
Filed 2024-04-12 20:41 Tx date 2024-04-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-151.492 -242 vol $0.63 each	1,578,910
Filed 2024-04-04 21:02 Tx date 2024-04-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-59,330.7484 -104,566 vol $0.57 each	27,828,771
Filed 2024-04-04 21:01 Tx date 2024-04-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-12,287.3738 -20,819 vol $0.59 each	27,933,337
Filed 2024-04-04 21:00 Tx date 2024-04-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-3,366.9516 -5,934 vol $0.57 each	1,579,152
Filed 2024-04-04 20:59 Tx date 2024-04-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-697.0262 -1,181 vol $0.59 each	1,585,086
Filed 2024-04-02 11:16 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+199,826 vol	450,484
Filed 2024-04-02 11:04 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cubillas, Claudio Zavaleta 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+78,528 vol	332,842
Filed 2024-04-02 11:02 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Menera, Jose Noel Gomez 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+56,912 vol	300,180
Filed 2024-04-02 11:00 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Kosa, Patricia Munoz 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+93,831 vol	333,957
Filed 2024-04-02 10:59 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Garcia, Carlos Rosales 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+95,654 vol	338,922
Filed 2024-04-02 10:57 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+85,500 vol	403,731
Filed 2024-04-02 10:55 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Llamosas, Jose Antonio Fernandez-Baca 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+364,900 vol	608,168
Filed 2024-04-02 10:52 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+781,929 vol	781,929
Filed 2024-04-02 10:49 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+76,704 vol	160,209
Filed 2024-04-02 10:48 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-153,407 vol	250,658
Filed 2024-04-02 10:44 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,361 vol	6,721
Filed 2024-04-02 10:43 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,361 vol	0
Filed 2024-04-02 10:41 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-10,570 vol	1
Filed 2024-04-02 10:39 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+10,570 vol	518,385
Filed 2024-04-02 10:38 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 58 - Expiration of rights	-10,570 vol
Filed 2024-04-02 10:36 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cubillas, Claudio Zavaleta 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+33,810 vol	193,213
Filed 2024-04-02 10:35 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cubillas, Claudio Zavaleta 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 54 - Exercise of warrants	-48,300 vol	254,314
Filed 2024-04-02 10:32 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,361 vol	274,487
Filed 2024-04-02 10:30 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,361 vol	0
Filed 2024-04-02 10:25 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,361 vol
Filed 2024-04-02 10:24 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,361 vol
Filed 2024-04-02 10:15 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+26,237 vol	51,237
Filed 2024-04-02 10:10 Tx date 2024-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-37,482 vol	318,231
Filed 2024-03-28 16:12 Tx date 2024-03-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-10,002.24 -16,560 vol $0.60 each	27,954,156
Filed 2024-03-28 16:11 Tx date 2024-03-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-567.76 -940 vol $0.60 each	1,586,267
Filed 2024-03-22 09:55 Tx date 2024-03-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-12,023.5924 -21,292 vol $0.56 each	27,970,716
Filed 2024-03-22 09:54 Tx date 2024-03-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-10,888.688 -17,980 vol $0.61 each	27,992,008
Filed 2024-03-22 09:53 Tx date 2024-03-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-4,411.3296 -8,044 vol $0.55 each	28,009,988
Filed 2024-03-22 09:52 Tx date 2024-03-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-682.1576 -1,208 vol $0.56 each	1,587,207
Filed 2024-03-22 09:51 Tx date 2024-03-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-617.712 -1,020 vol $0.61 each	1,588,415
Filed 2024-03-22 09:50 Tx date 2024-03-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-250.0704 -456 vol $0.55 each	1,589,435
Filed 2024-03-20 08:34 Tx date 2024-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero Sanchez, Astolfo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2024-02-23 18:50 Tx date 2024-02-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-60,582.126 -94,630 vol $0.64 each	28,018,032
Filed 2024-02-23 18:49 Tx date 2024-02-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-27,986.8225 -47,315 vol $0.59 each	28,112,662
Filed 2024-02-23 18:48 Tx date 2024-02-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-3,437.874 -5,370 vol $0.64 each	1,589,891
Filed 2024-02-23 18:47 Tx date 2024-02-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-1,588.1775 -2,685 vol $0.59 each	1,595,261
Filed 2024-02-09 20:55 Tx date 2024-02-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cubillas, Claudio Zavaleta 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report		302,614
Filed 2024-02-09 20:55 Tx date 2024-02-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cubillas, Claudio Zavaleta 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report		159,403
Filed 2024-02-09 20:50 Tx date 2023-09-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Menera, Jose Noel Gomez 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report		243,268
Filed 2024-02-09 20:42 Tx date 2023-09-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Kosa, Patricia Munoz 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report		240,126
Filed 2024-02-09 20:42 Tx date 2023-09-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Kosa, Patricia Munoz 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report		88,800
Filed 2024-02-09 20:37 Tx date 2023-01-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Garcia, Carlos Rosales 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report		243,268
Filed 2024-02-09 20:31 Tx date 2021-11-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report		355,713
Filed 2024-02-09 20:30 Tx date 2021-11-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Calle, Alberto San Roman 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report		25,000
Filed 2024-02-06 15:54 Tx date 2024-02-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-14,012.307 -21,765 vol $0.64 each	28,159,977
Filed 2024-02-06 15:53 Tx date 2024-01-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-67,064.281 -94,630 vol $0.71 each	28,181,742
Filed 2024-02-06 15:53 Tx date 2024-01-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-228,929.5008 -378,521 vol $0.60 each	28,276,372
Filed 2024-02-06 15:52 Tx date 2024-02-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-795.093 -1,235 vol $0.64 each	1,597,946
Filed 2024-02-06 15:51 Tx date 2024-01-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-3,805.719 -5,370 vol $0.71 each	1,599,181
Filed 2024-02-06 15:51 Tx date 2024-01-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-12,990.4992 -21,479 vol $0.60 each	1,604,551
Filed 2024-01-02 19:39 Tx date 2023-12-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-1,071.0594 -1,893 vol $0.57 each	28,654,893
Filed 2024-01-02 19:38 Tx date 2023-12-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-60.5406 -107 vol $0.57 each	1,626,030
Filed 2024-01-02 13:20 Tx date 2024-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-1,550,120 vol	0
Filed 2024-01-02 13:12 Tx date 2024-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+1,085,084 vol	2,705,084
Filed 2024-01-02 13:01 Tx date 2024-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-1,550,120 vol
Filed 2023-12-23 14:24 Tx date 2023-12-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-179,993.4213 -310,387 vol $0.58 each	28,656,786
Filed 2023-12-23 14:23 Tx date 2023-12-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-124,842.5983 -216,703 vol $0.58 each	28,967,173
Filed 2023-12-23 14:22 Tx date 2023-12-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-192,566.283 -351,078 vol $0.55 each	29,183,876
Filed 2023-12-23 14:21 Tx date 2023-12-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-10,213.7787 -17,613 vol $0.58 each	1,626,137
Filed 2023-12-23 14:20 Tx date 2023-12-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-7,084.3017 -12,297 vol $0.58 each	1,643,750
Filed 2023-12-23 14:19 Tx date 2023-12-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-10,927.217 -19,922 vol $0.55 each	1,656,047
Filed 2023-12-21 18:22 Tx date 2023-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-29,888.3241 -55,359 vol $0.54 each	29,534,954
Filed 2023-12-21 18:21 Tx date 2023-12-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-7,578.1083 -13,721 vol $0.55 each	29,590,313
Filed 2023-12-21 18:21 Tx date 2023-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-1,695.8259 -3,141 vol $0.54 each	1,675,969
Filed 2023-12-21 18:20 Tx date 2023-12-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-430.2417 -779 vol $0.55 each	1,679,110
Filed 2023-12-18 18:18 Tx date 2021-07-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 58 - Expiration of rights	-155,969 vol	0
Filed 2023-12-18 18:17 Tx date 2023-12-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-119,858.4293 -216,703 vol $0.55 each	29,604,034
Filed 2023-12-18 18:16 Tx date 2023-12-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-69,435.8586 -125,858 vol $0.55 each	29,820,737
Filed 2023-12-18 18:15 Tx date 2023-12-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-2,593.136 -4,732 vol $0.55 each	29,946,595
Filed 2023-12-18 18:15 Tx date 2023-12-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-20,602.8436 -37,852 vol $0.54 each	29,951,327
Filed 2023-12-18 18:14 Tx date 2023-12-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-40,986.1456 -75,704 vol $0.54 each	29,989,179
Filed 2023-12-18 18:13 Tx date 2023-12-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-6,801.4707 -12,297 vol $0.55 each	1,679,889
Filed 2023-12-18 18:12 Tx date 2023-12-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-3,940.2414 -7,142 vol $0.55 each	1,692,186
Filed 2023-12-18 18:12 Tx date 2023-12-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-146.864 -268 vol $0.55 each	1,699,328
Filed 2023-12-18 18:11 Tx date 2023-12-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-1,169.1564 -2,148 vol $0.54 each	1,699,596
Filed 2023-12-18 18:11 Tx date 2023-12-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$-2,325.8544 -4,296 vol $0.54 each	1,701,744
Filed 2023-11-06 13:17 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburu, Miguel 4 - Director of Issuer Direct Ownership	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$135,329 +356,131 vol $0.38 each	356,131
Filed 2023-11-06 13:14 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Holder: Oscar Cabrera Consulting Inc. (Control or Direction)	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$50,000 +131,579 vol $0.38 each	131,579
Filed 2023-11-06 13:13 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Holder: Oscar Cabrera Consulting Inc. (Control or Direction)	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2023-11-06 12:00 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$100,474 +264,406 vol $0.38 each	271,126
Filed 2023-11-06 11:53 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$20,000 +52,632 vol $0.38 each	83,505
Filed 2023-11-06 11:50 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$53,999 +142,105 vol $0.38 each	296,502
Filed 2023-11-06 11:44 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Llamosas, Jose Antonio Fernandez-Baca 5 - Senior Officer of Issuer Direct Ownership	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$67,564 +177,800 vol $0.38 each	177,800
Filed 2023-11-06 11:44 Tx date 2023-01-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Llamosas, Jose Antonio Fernandez-Baca 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2023-11-06 11:32 Tx date 2023-10-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 16 - Acquisition or disposition under a prospectus exemption	$406,600 +1,070,000 vol $0.38 each	1,620,000
Filed 2023-11-05 12:24 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburu, Miguel 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2023-09-05 10:13 Tx date 2023-08-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Llamosas, Jose Antonio Fernandez-Baca 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+243,268 vol	243,268
Filed 2023-09-05 10:11 Tx date 2023-01-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Llamosas, Jose Antonio Fernandez-Baca 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2023-08-22 11:02 Tx date 2023-08-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Kaufman, Wendy 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report		326,529
Filed 2023-07-04 12:23 Tx date 2023-06-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Deferred Share Units 59 - Exercise for cash	$-32,329.6805 -109,555 vol $0.2951 each	0
Filed 2023-07-04 12:20 Tx date 2023-06-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 58 - Expiration of rights	-10,570 vol	0
Filed 2023-06-30 15:56 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburu, Miguel 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+352,385 vol	461,940
Filed 2023-06-30 15:56 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburu, Miguel 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report		109,555
Filed 2023-06-30 15:41 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+352,385 vol	461,940
Filed 2023-06-30 15:39 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+352,385 vol	461,940
Filed 2023-06-30 15:38 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+352,385 vol	461,940
Filed 2023-06-30 15:13 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Orrantia, Beatriz 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+352,385 vol	352,385
Filed 2023-06-30 15:12 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Orrantia, Beatriz 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2023-06-30 15:07 Tx date 2023-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+519,540 vol	681,063
Filed 2023-06-09 12:19 Tx date 2023-06-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+1,550,120 vol	1,550,120
Filed 2023-06-09 12:16 Tx date 2022-11-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2023-04-17 08:17 Tx date 2023-04-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$16,194 +39,500 vol $0.41 each	550,000
Filed 2023-04-17 08:16 Tx date 2023-04-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Balarezo, Ernesto 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$195.00 +500 vol $0.39 each	510,500
Filed 2023-04-15 11:12 Tx date 2023-04-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$731.08 +2,450 vol $0.2984 each	154,397
Filed 2023-04-12 10:11 Tx date 2023-04-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$29,000 +72,500 vol $0.40 each	510,000
Filed 2023-04-12 10:11 Tx date 2023-04-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$2,800 +7,000 vol $0.40 each	437,500
Filed 2023-04-12 10:10 Tx date 2023-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$197.50 +500 vol $0.395 each	430,500
Filed 2023-04-12 10:10 Tx date 2023-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$5,332 +13,500 vol $0.395 each	430,000
Filed 2023-04-04 15:56 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$526.85 +1,792 vol $0.294 each	82,130
Filed 2023-04-04 15:55 Tx date 2023-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$34.85 +120 vol $0.2904 each	151,947
Filed 2023-04-04 15:55 Tx date 2023-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$7,929 +26,483 vol $0.2994 each	151,827
Filed 2023-04-04 15:54 Tx date 2023-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$4,951 +16,471 vol $0.3006 each	125,344
Filed 2023-04-04 15:53 Tx date 2023-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$8,012 +26,743 vol $0.2996 each	108,873
Filed 2023-04-04 08:53 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+77,748 vol	134,155
Filed 2023-04-04 08:50 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,360 vol	6,720
Filed 2023-04-04 08:50 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,360 vol	3,361
Filed 2023-04-04 08:49 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+29,429 vol	176,057
Filed 2023-04-04 08:47 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-45,275 vol	56,407
Filed 2023-04-04 08:45 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+34,363 vol	80,074
Filed 2023-04-04 08:44 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-34,363 vol	10,570
Filed 2023-04-04 08:42 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+34,363 vol	507,815
Filed 2023-04-04 08:39 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	$1,180,815,769 +34,363 vol $34,363 each
Filed 2023-04-04 08:38 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-34,363 vol	10,571
Filed 2023-04-04 08:35 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+16,456 vol	30,873
Filed 2023-04-04 08:31 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-16,456 vol	404,065
Filed 2023-04-04 08:28 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+410,853 vol	420,521
Filed 2023-04-03 16:48 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,360 vol	3,360
Filed 2023-04-03 16:47 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2023-04-03 16:46 Tx date 2023-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,360 vol	3,361
Filed 2023-03-31 16:21 Tx date 2023-03-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$21,250 +50,000 vol $0.425 each	267,500
Filed 2023-03-31 16:20 Tx date 2023-03-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$4,510 +11,000 vol $0.41 each	217,500
Filed 2023-03-31 16:19 Tx date 2023-03-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$11,745 +29,000 vol $0.405 each	206,500
Filed 2023-03-31 16:19 Tx date 2023-03-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$43,960 +109,900 vol $0.40 each	177,500
Filed 2023-03-31 16:18 Tx date 2023-03-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$26,702 +67,600 vol $0.395 each	67,600
Filed 2023-03-31 16:16 Tx date 2022-11-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Valdez, Ernesto Balarezo 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2023-02-03 08:58 Tx date 2023-01-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+13,838 vol	146,628
Filed 2023-02-03 08:55 Tx date 2023-01-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-21,289 vol	101,682
Filed 2022-07-18 06:24 Tx date 2022-07-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$8,208 +12,000 vol $0.68 each	80,338
Filed 2022-07-04 10:59 Tx date 2022-06-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Restricted Share Unit 59 - Exercise for cash	$-3,561.60 -3,360 vol $1.06 each	6,721
Filed 2022-07-04 10:46 Tx date 2022-06-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,360 vol	3,360
Filed 2022-07-04 10:44 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2022-07-04 10:43 Tx date 2022-06-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,360 vol	6,721
Filed 2022-06-29 14:29 Tx date 2022-06-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Whittaker, Dawn Patricia 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$25,750 +25,000 vol $1.03 each	25,000
Filed 2022-06-29 14:28 Tx date 2022-02-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Whittaker, Dawn Patricia 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-15 12:03 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+10,081 vol	10,081
Filed 2022-06-15 12:00 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-15 11:58 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+10,081 vol	10,081
Filed 2022-06-15 11:56 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-15 11:52 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburú Alvarez-Calderón, Miguel 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report		109,555
Filed 2022-06-15 11:50 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report		109,555
Filed 2022-06-15 11:47 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Whittaker, Dawn Patricia 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+109,555 vol	109,555
Filed 2022-06-15 11:46 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+109,555 vol	109,555
Filed 2022-06-15 11:45 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+109,555 vol	109,555
Filed 2022-06-15 11:43 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+109,555 vol	109,555
Filed 2022-06-15 11:41 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+161,523 vol	161,523
Filed 2022-06-14 12:08 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburú Alvarez-Calderón, Miguel 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-14 11:36 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-14 11:17 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol
Filed 2022-06-14 11:04 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol
Filed 2022-06-14 10:58 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+170,046 vol
Filed 2022-06-14 10:46 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol
Filed 2022-06-14 10:28 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Whittaker, Dawn Patricia 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol
Filed 2022-06-14 12:08 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Aramburú Alvarez-Calderón, Miguel 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report		115,335
Filed 2022-06-14 11:36 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report		115,335
Filed 2022-06-14 11:34 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neal, Robert McDowell 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report		68,338
Filed 2022-06-14 11:17 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol	115,335
Filed 2022-06-14 11:16 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Santa-Cruz Bendezu, Carlos Enrique 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-14 11:04 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol	115,335
Filed 2022-06-14 11:03 Tx date 2009-06-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-14 10:58 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+170,046 vol	170,046
Filed 2022-06-14 10:57 Tx date 2021-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cabrera, Oscar Mariano 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-14 10:46 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol	115,335
Filed 2022-06-14 10:44 Tx date 2019-07-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-06-14 10:28 Tx date 2022-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Whittaker, Dawn Patricia 4 - Director of Issuer Direct Ownership	Deferred Share Units 56 - Grant of rights	+115,335 vol	115,335
Filed 2022-06-14 10:22 Tx date 2022-02-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Whittaker, Dawn Patricia 4 - Director of Issuer Direct Ownership	Deferred Share Units 00 - Opening Balance-Initial SEDI Report
Filed 2022-05-19 09:47 Tx date 2022-05-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+80,451 vol	122,971
Filed 2022-05-19 09:22 Tx date 2022-05-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+246,286 vol	327,857
Filed 2022-05-19 09:10 Tx date 2022-05-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+560,737 vol	619,532
Filed 2022-04-07 17:52 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-32,315 vol	24,962
Filed 2022-04-07 17:49 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+23,504 vol	337,653
Filed 2022-04-07 17:47 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+32,915 vol	314,149
Filed 2022-04-07 17:46 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-32,915 vol	57,277
Filed 2022-04-07 16:45 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+58,170 vol	473,452
Filed 2022-04-07 16:44 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-58,170 vol	44,934
Filed 2022-04-07 16:40 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+2,417 vol	14,417
Filed 2022-04-07 16:39 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-4,834 vol	9,668
Filed 2022-04-07 16:36 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+44,082 vol	643,223
Filed 2022-04-07 16:35 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-88,163 vol	81,571
Filed 2022-04-07 11:23 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+29,398 vol	149,398
Filed 2022-04-07 11:22 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-29,398 vol	58,795
Filed 2022-04-07 11:19 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+22,726 vol	45,711
Filed 2022-04-07 11:19 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-45,451 vol	44,933
Filed 2022-04-07 11:12 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+58,170 vol	678,831
Filed 2022-04-07 11:12 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-58,170 vol	44,933
Filed 2022-04-07 11:07 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+32,609 vol	128,326
Filed 2022-04-07 11:06 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-65,217 vol	59,026
Filed 2022-04-07 09:59 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+58,436 vol	132,790
Filed 2022-04-07 09:57 Tx date 2022-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-58,436 vol	42,520
Filed 2021-12-10 12:46 Tx date 2021-12-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$68,800 +40,000 vol $1.72 each	95,717
Filed 2021-04-05 14:56 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arrarte Grau, Ricardo Miguel 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-41,534 vol	97,038
Filed 2021-04-05 14:55 Tx date 2021-03-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arrarte Grau, Ricardo Miguel 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+31,710 vol	138,572
Filed 2021-04-05 14:51 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+41,534 vol	696,437
Filed 2021-04-05 14:50 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+75,109 vol	654,903
Filed 2021-04-05 14:48 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-75,109 vol	155,969
Filed 2021-04-05 14:45 Tx date 2021-03-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 56 - Grant of rights	+52,850 vol	231,078
Filed 2021-04-01 11:20 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+29,623 vol	55,717
Filed 2021-04-01 11:19 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-59,247 vol	124,243
Filed 2021-04-01 11:17 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+52,850 vol	183,490
Filed 2021-04-01 11:13 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+59,247 vol	415,282
Filed 2021-04-01 11:13 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-59,247 vol	103,104
Filed 2021-04-01 11:11 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+93,953 vol	599,141
Filed 2021-04-01 11:10 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-93,953 vol	169,734
Filed 2021-04-01 11:06 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-59,247 vol	103,103
Filed 2021-04-01 11:05 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+59,247 vol	620,661
Filed 2021-04-01 11:03 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-37,522 vol	60,467
Filed 2021-04-01 11:02 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+18,761 vol	97,656
Filed 2021-04-01 10:59 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-41,470 vol	100,956
Filed 2021-04-01 10:58 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+41,470 vol	74,354
Filed 2021-04-01 10:55 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-34,882 vol	90,384
Filed 2021-04-01 10:54 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+17,441 vol	22,985
Filed 2021-04-01 10:31 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+31,710 vol	162,350
Filed 2021-04-01 10:25 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+88,193 vol	88,193
Filed 2021-04-01 10:25 Tx date 2020-05-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2021-04-01 10:23 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+50,900 vol	142,426
Filed 2021-04-01 10:21 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+14,502 vol	14,502
Filed 2021-04-01 10:19 Tx date 2019-12-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2021-04-01 10:17 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+15,421 vol	97,989
Filed 2021-04-01 10:12 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+31,710 vol	125,266
Filed 2021-03-31 17:01 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+17,616 vol	90,192
Filed 2021-03-31 13:25 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+31,710 vol	162,351
Filed 2021-03-31 13:19 Tx date 2021-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+97,532 vol	263,687
Filed 2021-02-11 16:25 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital GP Ltd. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	+10,558,154 vol	10,558,154
Filed 2021-01-25 23:04 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital GP Ltd. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	+11,090,157 vol
Filed 2021-01-25 23:05 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	-52,721,964 vol	0
Filed 2021-01-25 23:04 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital GP Ltd. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	+11,090,157 vol	11,090,157
Filed 2021-01-25 23:03 Tx date 2008-11-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital GP Ltd. (Control or Direction)	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2021-01-25 23:03 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Common Shares 11 - Acquisition or disposition carried out privately	+717,110 vol	717,110
Filed 2021-01-25 23:01 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Common Shares 11 - Acquisition or disposition carried out privately	+717,110 vol
Filed 2021-01-25 23:00 Tx date 2021-01-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Common Shares 11 - Acquisition or disposition carried out privately	+717,110 vol
Filed 2021-01-25 23:00 Tx date 2008-11-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2020-09-22 16:33 Tx date 2020-09-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$1,219 +650 vol $1.88 each	78,895
Filed 2020-06-26 13:50 Tx date 2020-06-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$23,520 +12,000 vol $1.96 each	12,000
Filed 2020-06-22 19:11 Tx date 2020-06-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-15,000 -10,000 vol $1.50 each	0
Filed 2020-06-22 19:11 Tx date 2020-06-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$12,000 +10,000 vol $1.20 each	10,000
Filed 2020-06-22 19:10 Tx date 2019-12-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vyas, Rajesh 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2020-06-19 16:43 Tx date 2020-06-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$129,600 +120,000 vol $1.08 each	120,000
Filed 2020-06-19 16:43 Tx date 2020-05-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Marchese, Luis Carlos 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2020-06-12 17:16 Tx date 2020-06-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$245.00 +200 vol $1.23 each	78,245
Filed 2020-05-19 00:35 Tx date 2020-05-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$497.50 +500 vol $0.99 each	78,045
Filed 2020-05-02 12:29 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 56 - Grant of rights	+118,969 vol	178,228
Filed 2020-05-02 12:22 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arrarte Grau, Ricardo Miguel 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,381 vol	106,862
Filed 2020-04-28 19:40 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,381 vol	130,640
Filed 2020-04-28 11:47 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,381 vol	130,641
Filed 2020-04-28 11:44 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+49,648 vol	166,155
Filed 2020-04-28 11:43 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,381 vol	93,556
Filed 2020-04-28 11:41 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+39,656 vol	72,576
Filed 2020-04-28 11:38 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,381 vol	130,640
Filed 2020-04-28 11:36 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+15,194 vol	25,533
Filed 2020-04-28 11:35 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+49,457 vol	82,568
Filed 2020-04-28 11:34 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+25,759 vol	91,526
Filed 2020-04-28 11:32 Tx date 2020-04-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+125,454 vol	390,666
Filed 2020-04-05 19:35 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+17,740 vol	579,794
Filed 2020-04-05 19:14 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+46,914 vol	562,054
Filed 2020-04-05 19:13 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-46,914 vol	59,259
Filed 2020-04-05 19:10 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arrarte Grau, Ricardo Miguel 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-17,740 vol	35,481
Filed 2020-04-03 19:22 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+18,575 vol	26,094
Filed 2020-04-03 19:20 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-37,149 vol	59,259
Filed 2020-04-03 14:48 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+64,413 vol	505,188
Filed 2020-04-03 14:48 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-128,825 vol	116,507
Filed 2020-04-03 14:46 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+37,531 vol	356,035
Filed 2020-04-03 14:46 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-46,914 vol	59,260
Filed 2020-04-03 14:40 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+20,851 vol	281,234
Filed 2020-04-03 14:40 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-26,064 vol	32,920
Filed 2020-04-03 14:38 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+23,586 vol	77,545
Filed 2020-04-03 14:38 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-47,171 vol	33,111
Filed 2020-04-03 14:37 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+5,544 vol	5,544
Filed 2020-04-03 14:36 Tx date 2019-07-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2020-04-03 14:36 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,088 vol	22,175
Filed 2020-04-03 14:34 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+6,098 vol	46,081
Filed 2020-04-03 14:33 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-12,195 vol	10,339
Filed 2020-04-03 14:31 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+191,350 vol	543,336
Filed 2020-04-03 14:31 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-191,350 vol	265,212
Filed 2020-04-03 14:30 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+46,914 vol	561,414
Filed 2020-04-03 14:29 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-46,914 vol	59,259
Filed 2020-04-03 14:28 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+32,884 vol	32,884
Filed 2020-04-03 14:27 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2020-04-03 14:27 Tx date 2020-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-32,884 vol	65,767
Filed 2020-01-02 15:15 Tx date 2019-12-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-162,714 vol	0
Filed 2020-01-02 15:14 Tx date 2019-12-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$4,070 +2,000 vol $2.04 each	162,714
Filed 2020-01-02 15:13 Tx date 2019-12-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,240 +4,200 vol $1.96 each	160,714
Filed 2020-01-02 15:13 Tx date 2019-12-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$783.00 +400 vol $1.96 each	156,514
Filed 2020-01-02 15:13 Tx date 2019-12-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$188,939 +99,400 vol $1.90 each	156,114
Filed 2020-01-02 15:12 Tx date 2019-12-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,896 +4,214 vol $1.87 each	56,714
Filed 2020-01-02 15:12 Tx date 2019-12-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$3,619 +2,000 vol $1.81 each	52,500
Filed 2020-01-02 15:11 Tx date 2019-12-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$90,894 +50,500 vol $1.80 each	50,500
Filed 2019-12-05 13:58 Tx date 2019-11-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-169,182 vol	0
Filed 2019-12-05 13:56 Tx date 2019-11-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$2,187 +1,200 vol $1.82 each	169,182
Filed 2019-12-05 13:56 Tx date 2019-11-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,350 +3,400 vol $1.87 each	167,982
Filed 2019-12-05 13:55 Tx date 2019-11-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,090 +4,214 vol $1.92 each	164,582
Filed 2019-12-05 13:55 Tx date 2019-11-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,046 +4,214 vol $1.91 each	160,368
Filed 2019-12-05 13:55 Tx date 2019-11-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,152 +600 vol $1.92 each	156,154
Filed 2019-12-05 13:54 Tx date 2019-11-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,110 +4,214 vol $1.92 each	155,554
Filed 2019-12-05 13:54 Tx date 2019-11-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,241 +4,214 vol $1.96 each	151,340
Filed 2019-12-05 13:54 Tx date 2019-11-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,385 +4,214 vol $1.99 each	147,126
Filed 2019-12-05 13:53 Tx date 2019-11-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,276 +3,714 vol $1.96 each	142,912
Filed 2019-12-05 13:53 Tx date 2019-11-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,126 +4,214 vol $1.93 each	139,198
Filed 2019-12-05 13:52 Tx date 2019-11-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$696.00 +400 vol $1.74 each	134,984
Filed 2019-12-05 13:52 Tx date 2019-11-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,560 +3,700 vol $1.77 each	134,584
Filed 2019-12-05 13:52 Tx date 2019-11-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,374 +4,214 vol $1.75 each	130,884
Filed 2019-12-05 13:51 Tx date 2019-11-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,358 +4,214 vol $1.75 each	126,670
Filed 2019-12-05 13:51 Tx date 2019-11-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,424 +4,214 vol $1.76 each	122,456
Filed 2019-12-05 13:49 Tx date 2019-11-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$2,288 +1,300 vol $1.76 each	118,242
Filed 2019-12-05 13:49 Tx date 2019-11-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,747 +4,214 vol $1.84 each	116,942
Filed 2019-12-05 13:48 Tx date 2019-11-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,738 +4,214 vol $1.84 each	112,728
Filed 2019-12-05 13:48 Tx date 2019-11-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,815 +4,214 vol $1.85 each	108,514
Filed 2019-11-04 15:58 Tx date 2019-10-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-189,224 vol	4,100
Filed 2019-11-04 15:57 Tx date 2019-10-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$188,376 +100,200 vol $1.88 each	104,300
Filed 2019-11-04 15:56 Tx date 2019-10-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,689 +4,100 vol $1.88 each	193,324
Filed 2019-11-04 15:56 Tx date 2019-10-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,685 +4,214 vol $1.82 each	189,224
Filed 2019-11-04 15:55 Tx date 2019-10-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,006 +4,214 vol $1.90 each	185,010
Filed 2019-11-04 15:55 Tx date 2019-10-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,122 +4,214 vol $1.93 each	180,796
Filed 2019-11-04 15:55 Tx date 2019-10-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,721 +1,000 vol $1.72 each	176,582
Filed 2019-11-04 15:54 Tx date 2019-10-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,753 +4,214 vol $1.84 each	175,582
Filed 2019-11-04 15:54 Tx date 2019-10-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,080 +4,214 vol $1.92 each	171,368
Filed 2019-11-04 15:53 Tx date 2019-10-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,231 +4,214 vol $1.72 each	167,154
Filed 2019-11-04 15:53 Tx date 2019-10-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$94,947 +69,814 vol $1.36 each	162,940
Filed 2019-11-04 15:52 Tx date 2019-10-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$5,852 +4,214 vol $1.39 each	93,126
Filed 2019-11-04 15:52 Tx date 2019-10-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,114 +4,214 vol $1.45 each	88,912
Filed 2019-11-04 15:51 Tx date 2019-10-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,300 +4,200 vol $1.50 each	84,698
Filed 2019-11-04 15:51 Tx date 2019-10-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$81,321 +54,214 vol $1.50 each	80,498
Filed 2019-11-04 15:50 Tx date 2019-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,455 +4,214 vol $1.53 each	26,284
Filed 2019-11-04 15:50 Tx date 2019-10-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,573 +4,214 vol $1.56 each	22,070
Filed 2019-11-04 15:50 Tx date 2019-10-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,660 +1,000 vol $1.66 each	17,856
Filed 2019-11-04 15:49 Tx date 2019-10-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,746 +4,214 vol $1.60 each	16,856
Filed 2019-11-04 15:49 Tx date 2019-10-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,861 +4,214 vol $1.63 each	12,642
Filed 2019-10-03 13:44 Tx date 2019-09-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-174,138 vol	8,428
Filed 2019-10-03 13:36 Tx date 2019-09-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,189 +4,214 vol $1.71 each	182,566
Filed 2019-10-03 13:36 Tx date 2019-09-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,761 +4,214 vol $1.84 each	178,352
Filed 2019-10-03 13:36 Tx date 2019-09-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,316 +4,214 vol $1.97 each	174,138
Filed 2019-10-03 13:35 Tx date 2019-09-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,088 +4,214 vol $1.92 each	169,924
Filed 2019-10-03 13:35 Tx date 2019-09-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,751 +4,214 vol $1.84 each	165,710
Filed 2019-10-03 13:34 Tx date 2019-09-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,585 +4,214 vol $1.80 each	161,496
Filed 2019-10-03 13:34 Tx date 2019-09-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,428 +4,214 vol $1.76 each	157,282
Filed 2019-10-03 13:34 Tx date 2019-09-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,007 +4,214 vol $1.66 each	153,068
Filed 2019-10-03 13:33 Tx date 2019-09-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,868 +4,214 vol $1.63 each	148,854
Filed 2019-10-03 13:33 Tx date 2019-09-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,751 +4,214 vol $1.60 each	144,640
Filed 2019-10-03 13:32 Tx date 2019-09-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,491 +4,214 vol $1.54 each	140,426
Filed 2019-10-03 13:32 Tx date 2019-09-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,784 +4,214 vol $1.61 each	136,212
Filed 2019-10-03 13:31 Tx date 2019-09-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,171 +4,214 vol $1.70 each	131,998
Filed 2019-10-03 13:25 Tx date 2019-09-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$3,340 +1,900 vol $1.76 each	127,784
Filed 2019-10-03 13:24 Tx date 2019-09-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,169 +700 vol $1.67 each	125,884
Filed 2019-10-03 13:23 Tx date 2019-09-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,950 +4,214 vol $1.65 each	125,184
Filed 2019-10-03 13:23 Tx date 2019-09-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,950 +4,214 vol $1.65 each	120,970
Filed 2019-10-03 13:22 Tx date 2019-09-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,824 +4,214 vol $1.62 each	116,756
Filed 2019-10-03 13:22 Tx date 2019-09-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,001 +4,214 vol $1.66 each	112,542
Filed 2019-10-03 13:21 Tx date 2019-09-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,993 +4,214 vol $1.66 each	108,328
Filed 2019-09-04 14:25 Tx date 2019-08-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-81,966 vol	99,900
Filed 2019-09-04 14:24 Tx date 2019-08-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,052 +4,214 vol $1.67 each	104,114
Filed 2019-09-04 14:23 Tx date 2019-08-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$167,841 +99,900 vol $1.68 each	181,866
Filed 2019-09-04 14:23 Tx date 2019-08-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,972 +4,214 vol $1.65 each	81,966
Filed 2019-09-04 14:22 Tx date 2019-08-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,800 +4,214 vol $1.61 each	77,752
Filed 2019-09-04 14:22 Tx date 2019-08-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,163 +4,214 vol $1.70 each	73,538
Filed 2019-09-04 14:21 Tx date 2019-08-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,163 +4,214 vol $1.70 each	69,324
Filed 2019-09-04 14:21 Tx date 2019-08-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,489 +4,214 vol $1.78 each	65,110
Filed 2019-09-04 14:20 Tx date 2019-08-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,373 +4,214 vol $1.75 each	60,896
Filed 2019-09-04 14:20 Tx date 2019-08-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,211 +4,214 vol $1.71 each	56,682
Filed 2019-09-04 14:19 Tx date 2019-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,376 +4,214 vol $1.75 each	52,468
Filed 2019-09-04 14:19 Tx date 2019-08-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,890 +4,214 vol $1.87 each	48,254
Filed 2019-09-04 14:18 Tx date 2019-08-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,428 +4,214 vol $2.00 each	44,040
Filed 2019-09-04 14:18 Tx date 2019-08-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,560 +4,214 vol $2.03 each	39,826
Filed 2019-09-04 14:17 Tx date 2019-08-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,428 +4,214 vol $2.00 each	35,612
Filed 2019-09-04 14:17 Tx date 2019-08-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,427 +4,214 vol $2.00 each	31,398
Filed 2019-09-04 14:16 Tx date 2019-08-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,419 +4,214 vol $2.00 each	27,184
Filed 2019-09-04 14:15 Tx date 2019-08-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,736 +4,214 vol $2.07 each	22,970
Filed 2019-09-04 14:15 Tx date 2019-08-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,428 +4,214 vol $2.00 each	18,756
Filed 2019-09-04 14:14 Tx date 2019-08-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,449 +4,214 vol $2.01 each	14,542
Filed 2019-09-04 14:14 Tx date 2019-08-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,395 +4,214 vol $1.99 each	10,328
Filed 2019-08-01 17:41 Tx date 2019-07-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,416 +4,214 vol $2.00 each	6,114
Filed 2019-08-01 17:41 Tx date 2019-07-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$3,762 +1,900 vol $1.98 each	1,900
Filed 2019-08-01 17:30 Tx date 2019-07-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-178,538 vol	0
Filed 2019-08-01 17:29 Tx date 2019-07-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,268 +4,214 vol $1.96 each	178,538
Filed 2019-08-01 17:28 Tx date 2019-07-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,814 +3,500 vol $1.95 each	174,324
Filed 2019-08-01 17:28 Tx date 2019-07-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,600 +4,214 vol $2.04 each	170,824
Filed 2019-08-01 17:27 Tx date 2019-07-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,381 +4,214 vol $1.99 each	166,610
Filed 2019-08-01 17:27 Tx date 2019-07-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,223 +4,214 vol $1.95 each	162,396
Filed 2019-08-01 17:26 Tx date 2019-07-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$168,963 +97,100 vol $1.74 each	158,182
Filed 2019-08-01 17:26 Tx date 2019-07-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,313 +4,214 vol $1.74 each	61,082
Filed 2019-08-01 17:25 Tx date 2019-07-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,961 +4,214 vol $1.65 each	56,868
Filed 2019-08-01 17:25 Tx date 2019-07-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,762 +4,214 vol $1.60 each	52,654
Filed 2019-08-01 17:25 Tx date 2019-07-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,733 +4,214 vol $1.60 each	48,440
Filed 2019-08-01 17:24 Tx date 2019-07-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,726 +4,214 vol $1.60 each	44,226
Filed 2019-08-01 17:24 Tx date 2019-07-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,919 +4,214 vol $1.64 each	40,012
Filed 2019-08-01 17:23 Tx date 2019-07-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,085 +4,214 vol $1.68 each	35,798
Filed 2019-08-01 17:23 Tx date 2019-07-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,979 +4,214 vol $1.66 each	31,584
Filed 2019-08-01 17:22 Tx date 2019-07-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,163 +4,214 vol $1.70 each	27,370
Filed 2019-08-01 17:22 Tx date 2019-07-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,189 +4,214 vol $1.71 each	23,156
Filed 2019-08-01 17:21 Tx date 2019-07-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,515 +4,200 vol $1.79 each	18,942
Filed 2019-08-01 17:21 Tx date 2019-07-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,810 +1,000 vol $1.81 each	14,742
Filed 2019-08-01 17:20 Tx date 2019-07-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,634 +4,214 vol $1.81 each	13,742
Filed 2019-08-01 17:20 Tx date 2019-07-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,701 +4,214 vol $1.83 each	9,528
Filed 2019-08-01 17:17 Tx date 2019-06-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,464 +4,214 vol $1.77 each	5,314
Filed 2019-08-01 17:16 Tx date 2019-06-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,861 +1,100 vol $1.69 each	1,100
Filed 2019-08-01 17:12 Tx date 2019-05-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,464 +4,214 vol $1.77 each
Filed 2019-08-01 17:12 Tx date 2019-06-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,861 +1,100 vol $1.69 each
Filed 2019-08-01 17:10 Tx date 2019-05-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,464 +4,214 vol $1.77 each
Filed 2019-08-01 17:10 Tx date 2019-06-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,861 +1,100 vol $1.69 each
Filed 2019-07-31 16:14 Tx date 2019-07-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+33,263 vol	33,263
Filed 2019-07-31 16:14 Tx date 2019-07-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Yamamoto, Koko 4 - Director of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2019-07-02 18:53 Tx date 2019-06-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-125,470 vol	0
Filed 2019-07-02 18:52 Tx date 2019-06-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,453 +4,214 vol $1.77 each	125,470
Filed 2019-07-02 18:52 Tx date 2019-06-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,638 +4,214 vol $1.81 each	121,256
Filed 2019-07-02 18:51 Tx date 2019-06-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,961 +4,214 vol $1.89 each	117,042
Filed 2019-07-02 18:51 Tx date 2019-06-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,584 +4,214 vol $1.80 each	112,828
Filed 2019-07-02 18:50 Tx date 2019-06-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$180,415 +104,214 vol $1.73 each	108,614
Filed 2019-07-02 18:50 Tx date 2019-06-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$6,639 +4,100 vol $1.62 each	4,400
Filed 2019-07-02 18:49 Tx date 2019-06-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$495.00 +300 vol $1.65 each	300
Filed 2019-06-04 13:37 Tx date 2019-05-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-44,412 vol	0
Filed 2019-06-04 13:36 Tx date 2019-05-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,189 +4,214 vol $1.94 each	7,014
Filed 2019-06-04 13:34 Tx date 2019-05-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,585 +4,214 vol $1.80 each	44,412
Filed 2019-06-04 13:33 Tx date 2019-05-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$4,628 +2,600 vol $1.78 each	40,198
Filed 2019-06-04 13:33 Tx date 2019-05-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,760 +1,000 vol $1.76 each	37,598
Filed 2019-06-04 13:32 Tx date 2019-05-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$534.00 +300 vol $1.78 each	36,598
Filed 2019-06-04 13:31 Tx date 2019-05-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$356.00 +200 vol $1.78 each	36,298
Filed 2019-06-04 13:31 Tx date 2019-05-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,669 +4,214 vol $1.82 each	36,098
Filed 2019-06-04 13:31 Tx date 2019-05-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,669 +4,214 vol $1.82 each	31,884
Filed 2019-06-04 13:30 Tx date 2019-05-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,669 +4,214 vol $1.82 each	27,670
Filed 2019-06-04 13:29 Tx date 2019-05-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$2,002 +1,100 vol $1.82 each	23,456
Filed 2019-06-04 13:28 Tx date 2019-05-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$3,866 +2,100 vol $1.84 each	22,356
Filed 2019-06-04 13:28 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,921 +4,214 vol $1.88 each	20,256
Filed 2019-06-04 13:27 Tx date 2019-05-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,152 +600 vol $1.92 each	16,042
Filed 2019-06-04 13:27 Tx date 2019-05-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,090 +4,214 vol $1.92 each	15,442
Filed 2019-06-04 13:26 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,090 +4,214 vol $1.92 each	11,228
Filed 2019-06-04 13:26 Tx date 2019-05-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,186 +4,212 vol $1.94 each
Filed 2019-06-04 13:25 Tx date 2019-05-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,330 +700 vol $1.90 each	2,800
Filed 2019-06-04 13:25 Tx date 2019-05-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$4,074 +2,100 vol $1.94 each	2,100
Filed 2019-05-16 21:58 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+98,651 vol	98,651
Filed 2019-05-16 21:58 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Lujan, Alonso 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2019-05-14 13:56 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,418 vol	106,173
Filed 2019-05-14 13:52 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arrarte Grau, Ricardo Miguel 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+53,221 vol	53,221
Filed 2019-05-14 13:50 Tx date 2019-04-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arrarte Grau, Ricardo Miguel 4 - Director of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2019-05-13 15:18 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,418 vol	96,408
Filed 2019-05-13 13:59 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,418 vol	106,174
Filed 2019-05-13 13:57 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+39,677 vol	58,984
Filed 2019-05-13 13:56 Tx date 2019-05-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+71,418 vol	106,173
Filed 2019-05-06 17:37 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+117,307 vol	245,332
Filed 2019-05-06 17:36 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+11,274 vol	22,534
Filed 2019-05-06 17:34 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+36,043 vol	80,282
Filed 2019-05-06 17:33 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+108,868 vol	255,887
Filed 2019-05-06 17:32 Tx date 2019-05-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+359,117 vol	456,562
Filed 2019-05-02 15:33 Tx date 2019-04-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-05-02 15:33 Tx date 2019-04-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,294 +4,214 vol $1.97 each	4,214
Filed 2019-04-30 15:42 Tx date 2019-04-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-842,684 vol	0
Filed 2019-04-30 15:41 Tx date 2019-04-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$5,922 +3,100 vol $1.91 each	842,684
Filed 2019-04-30 15:41 Tx date 2019-04-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,536 +800 vol $1.92 each	839,584
Filed 2019-04-30 15:40 Tx date 2019-04-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,267 +4,214 vol $1.96 each	838,784
Filed 2019-04-30 15:40 Tx date 2019-04-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$5,928 +3,000 vol $1.98 each	834,570
Filed 2019-04-30 15:39 Tx date 2019-04-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$2,388 +1,200 vol $1.99 each	831,570
Filed 2019-04-30 15:39 Tx date 2019-04-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,454 +3,600 vol $2.07 each	830,370
Filed 2019-04-30 15:38 Tx date 2019-04-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$4,273 +2,100 vol $2.04 each	826,770
Filed 2019-04-30 15:38 Tx date 2019-04-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$4,239 +2,100 vol $2.02 each	824,670
Filed 2019-04-30 15:37 Tx date 2019-04-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,502 +4,214 vol $2.02 each	822,570
Filed 2019-04-30 15:37 Tx date 2019-04-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$206.00 +100 vol $2.06 each	818,356
Filed 2019-04-30 15:35 Tx date 2019-04-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-500 vol
Filed 2019-04-30 15:35 Tx date 2019-04-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-800,000 vol
Filed 2019-04-30 15:35 Tx date 2019-04-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol
Filed 2019-04-30 15:34 Tx date 2019-04-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol
Filed 2019-04-30 15:34 Tx date 2019-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol
Filed 2019-04-30 15:34 Tx date 2019-04-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-900 vol
Filed 2019-04-30 15:33 Tx date 2019-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,722 +4,214 vol $2.07 each	818,256
Filed 2019-04-30 15:32 Tx date 2019-04-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-500 vol
Filed 2019-04-30 15:30 Tx date 2019-04-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,035 +500 vol $2.07 each	814,042
Filed 2019-04-30 15:29 Tx date 2019-04-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-800,000 vol
Filed 2019-04-30 15:28 Tx date 2019-04-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,616,000 +800,000 vol $2.02 each	813,542
Filed 2019-04-30 15:28 Tx date 2019-04-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol
Filed 2019-04-30 15:27 Tx date 2019-04-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,795 +4,214 vol $2.09 each	13,542
Filed 2019-04-30 15:27 Tx date 2019-04-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol
Filed 2019-04-30 15:26 Tx date 2019-04-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$9,001 +4,214 vol $2.14 each	9,328
Filed 2019-04-30 15:26 Tx date 2019-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol
Filed 2019-04-30 15:25 Tx date 2019-04-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$9,017 +4,214 vol $2.14 each	5,114
Filed 2019-04-30 15:24 Tx date 2019-04-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-900 vol
Filed 2019-04-30 15:24 Tx date 2019-04-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$1,953 +900 vol $2.17 each	900
Filed 2019-04-16 14:22 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+23,107 vol	515,140
Filed 2019-04-16 14:20 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-23,107 vol	34,755
Filed 2019-03-29 10:11 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+23,147 vol
Filed 2019-03-29 10:08 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-23,147 vol
Filed 2019-04-09 17:18 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+57,958 vol
Filed 2019-04-01 13:58 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+57,958 vol
Filed 2019-04-02 15:46 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+6,671 vol	7,519
Filed 2019-04-02 15:46 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-13,342 vol	24,990
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+38,134 vol	318,504
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-107,330 vol	147,019
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+12,838 vol	3,345,479
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+21,148 vol	260,383
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-71,643 vol	97,445
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-134,224 vol	128,025
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+23,107 vol	514,500
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+67,112 vol	440,775
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-23,107 vol	34,755
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+57,958 vol	219,041
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,123 vol	44,239
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+71,643 vol	351,986
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-26,435 vol	19,307
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-12,838 vol	19,308
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-47,668 vol	34,756
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,592 vol	53,959
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-19,056 vol	11,260
Filed 2019-04-01 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+9,528 vol	39,983
Filed 2019-03-29 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+23,147 vol	515,180
Filed 2019-03-29 Tx date 2019-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-23,147 vol	34,715
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,562 vol	57,862
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 58 - Expiration of rights	-13,597 vol	32,146
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,562 vol	169,088
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,562 vol	280,343
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+31,147 vol	161,083
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-31,147 vol	254,349
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+13,597 vol	3,332,641
Filed 2019-03-04 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,562 vol	491,393
Filed 2019-03-01 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,562 vol	57,862
Filed 2019-03-01 Tx date 2019-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+24,562 vol	492,033
Filed 2019-02-08 Tx date 2019-01-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$482.00 +200 vol $2.41 each	200
Filed 2019-02-08 Tx date 2019-01-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-200 vol	0
Filed 2019-02-08 Tx date 2019-01-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,594 +4,214 vol $2.51 each	4,214
Filed 2019-02-08 Tx date 2019-01-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,535 +4,214 vol $2.50 each	4,214
Filed 2019-02-08 Tx date 2019-01-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-3,200 vol	0
Filed 2019-02-08 Tx date 2019-01-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,738 +4,214 vol $2.55 each	4,214
Filed 2019-02-08 Tx date 2019-01-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,954 +4,214 vol $2.60 each	4,214
Filed 2019-02-08 Tx date 2019-01-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,433 +4,214 vol $2.48 each	4,214
Filed 2019-02-08 Tx date 2019-01-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,569 +4,214 vol $2.51 each	4,214
Filed 2019-02-08 Tx date 2019-01-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$8,008 +3,200 vol $2.50 each	3,200
Filed 2019-02-08 Tx date 2019-01-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$7,529 +3,000 vol $2.51 each	3,000
Filed 2019-02-08 Tx date 2019-01-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-4,214 vol	0
Filed 2019-02-08 Tx date 2019-01-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,158 +4,214 vol $2.41 each	4,214
Filed 2019-02-08 Tx date 2019-01-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	$10,872 +4,214 vol $2.58 each	4,214
Filed 2019-02-08 Tx date 2019-01-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Sierra Metals Inc. 1 - Issuer Direct Ownership	Common Shares 38 - Redemption, retraction, cancellation, repurchase	-3,000 vol	0
Filed 2019-01-16 Tx date 2019-01-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$5,584 +2,148 vol $2.60 each	1,706,040
Filed 2019-01-16 Tx date 2019-01-11	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$98,415 +37,852 vol $2.60 each	30,064,883
Filed 2019-01-15 Tx date 2019-01-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$1,280 +500 vol $2.56 each	29,367
Filed 2019-01-09 Tx date 2019-01-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$3,568 +1,401 vol $2.55 each	1,703,892
Filed 2019-01-09 Tx date 2019-01-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$62,908 +24,699 vol $2.55 each	30,027,031
Filed 2019-01-07 Tx date 2018-12-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$9,037 +3,758 vol $2.40 each	1,691,286
Filed 2019-01-07 Tx date 2019-01-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$5,118 +2,078 vol $2.46 each	1,702,491
Filed 2019-01-07 Tx date 2018-12-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$159,312 +66,242 vol $2.40 each	29,804,837
Filed 2019-01-07 Tx date 2019-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$22,361 +9,127 vol $2.45 each	1,700,413
Filed 2019-01-07 Tx date 2019-01-03	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$90,199 +36,622 vol $2.46 each	30,002,332
Filed 2019-01-07 Tx date 2019-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$394,138 +160,873 vol $2.45 each	29,965,710
Filed 2019-01-02 Tx date 2018-12-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$211,972 +90,278 vol $2.35 each	29,738,595
Filed 2019-01-02 Tx date 2018-12-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$12,026 +5,122 vol $2.35 each	1,687,528
Filed 2018-12-31 Tx date 2018-12-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$9,303 +3,870 vol $2.40 each	1,681,601
Filed 2018-12-31 Tx date 2018-12-26	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$163,988 +68,215 vol $2.40 each	29,634,122
Filed 2018-12-31 Tx date 2018-12-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$33,202 +14,195 vol $2.34 each	29,648,317
Filed 2018-12-31 Tx date 2018-12-27	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$1,882 +805 vol $2.34 each	1,682,406
Filed 2018-12-22 Tx date 2018-12-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$2,760 +1,200 vol $2.30 each	255,781
Filed 2018-12-21 Tx date 2018-12-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$7,945 +3,500 vol $2.27 each	30,455
Filed 2018-12-20 Tx date 2018-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-785,010 -300,000 vol $2.62 each	3,319,044
Filed 2018-12-18 Tx date 2018-12-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-31,320 -10,800 vol $2.90 each	3,619,044
Filed 2018-06-04 Tx date 2017-12-20	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Beeck, Alberto Luis 8 - Deemed Insider - 6 Months before becoming Insider Holder: Cranley Trust (Indirect Ownership)	Common Shares 00 - Opening Balance-Initial SEDI Report		8,266,082
Filed 2018-04-18 Tx date 2018-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,941 vol	82,424
Filed 2018-04-13 Tx date 2018-04-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$1,620 +500 vol $3.24 each	28,867
Filed 2018-04-11 Tx date 2018-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,941 vol	82,424
Filed 2018-04-11 Tx date 2018-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,941 vol	38,332
Filed 2018-04-11 Tx date 2018-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+19,412 vol	45,743
Filed 2018-04-11 Tx date 2018-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+19,412 vol	45,742
Filed 2018-04-11 Tx date 2018-04-10	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,941 vol	82,424
Filed 2018-04-04 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+114,906 vol	262,249
Filed 2018-04-04 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+27,068 vol	93,362
Filed 2018-04-04 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+119,064 vol	285,496
Filed 2018-04-04 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+180,548 vol	193,650
Filed 2018-04-04 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+8,467 vol	30,316
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Rights 56 - Grant of rights	+5,086 vol
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-1,695 vol	3,391
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+5,086 vol	5,086
Filed 2018-04-03 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,460 vol
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,460 vol	47,483
Filed 2018-04-03 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+11,460 vol
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+11,460 vol	467,471
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+848 vol	848
Filed 2018-04-03 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Rights 57 - Exercise of rights	-1,695 vol
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-101,168 vol	147,343
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,460 vol	47,483
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+11,460 vol	466,831
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-6,367 vol	26,331
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+6,367 vol	3,629,844
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-19,568 vol	21,849
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 58 - Expiration of rights	+9,784 vol	26,955
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-40,161 vol	66,294
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+20,081 vol	28,367
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+50,584 vol	373,663
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,460 vol	13,102
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+11,460 vol	254,581
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-33,560 vol	26,330
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+26,848 vol	239,235
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-60,583 vol	47,483
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+48,466 vol	280,370
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-67,642 vol	166,432
Filed 2018-04-02 Tx date 2018-03-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+67,642 vol	129,936
Filed 2018-04-02 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,460 vol	47,483
Filed 2018-04-02 Tx date 2018-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+11,460 vol	467,471
Filed 2018-03-06 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+49,123 vol	456,011
Filed 2018-03-06 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,123 vol	58,943
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,561 vol	455,371
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-27,193 vol	32,698
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+27,193 vol	3,623,477
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,123 vol	24,562
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+49,123 vol	243,121
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+31,147 vol	62,294
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-31,147 vol	234,074
Filed 2018-03-02 Tx date 2018-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,561 vol	58,943
Filed 2018-01-26 Tx date 2017-12-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+66,666 vol	323,079
Filed 2018-01-26 Tx date 2017-12-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-133,333 vol	248,511
Filed 2018-01-26 Tx date 2017-11-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-133,333 vol
Filed 2018-01-26 Tx date 2017-11-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+66,666 vol
Filed 2018-01-02 Tx date 2017-11-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+66,666 vol	323,079
Filed 2018-01-02 Tx date 2018-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-1,970 -1,000 vol $1.97 each	8,286
Filed 2018-01-02 Tx date 2018-01-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-1,980 -1,000 vol $1.98 each	9,286
Filed 2018-01-02 Tx date 2017-11-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-133,333 vol	248,511
Filed 2017-12-05 Tx date 2017-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 11 - Acquisition or disposition carried out privately	$-437,408.40 -132,548 vol $3.30 each	3,596,284
Filed 2017-12-04 Tx date 2017-11-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$273,200 +82,788 vol $3.30 each	1,670,614
Filed 2017-12-04 Tx date 2017-11-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$413,922 +125,431 vol $3.30 each	29,565,907
Filed 2017-12-04 Tx date 2017-11-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$4,815,198 +1,459,151 vol $3.30 each	29,440,476
Filed 2017-12-04 Tx date 2017-11-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$23,486 +7,117 vol $3.30 each	1,677,731
Filed 2017-11-13 Tx date 2017-11-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer, 5 - Senior Officer of Issuer Direct Ownership	Common Shares 46 - Compensation for services	+54,433 vol	193,998
Filed 2017-11-09 Tx date 2017-11-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Rights 00 - Opening Balance-Initial SEDI Report
Filed 2017-11-09 Tx date 2017-11-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Warrants 00 - Opening Balance-Initial SEDI Report
Filed 2017-11-09 Tx date 2017-11-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2017-11-09 Tx date 2017-11-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2017-11-09 Tx date 2017-11-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Vizquerra, Jose 4 - Director of Issuer Direct Ownership	Options 00 - Opening Balance-Initial SEDI Report
Filed 2017-06-12 Tx date 2017-06-09	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$319.00 +100 vol $3.19 each	10,286
Filed 2017-06-02 Tx date 2017-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$1,690 +500 vol $3.38 each	10,186
Filed 2017-05-01 Tx date 2017-04-29	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 58 - Expiration of rights	-752,876 vol	0
Filed 2017-04-25 Tx date 2017-04-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-600,000 -200,000 vol $3.00 each	213,999
Filed 2017-04-10 Tx date 2017-04-06	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-3,600 -1,000 vol $3.60 each	212,387
Filed 2017-04-10 Tx date 2017-04-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$117,720 +32,700 vol $3.60 each	430,810
Filed 2017-04-10 Tx date 2017-04-04	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$15,480 +4,300 vol $3.60 each	398,110
Filed 2017-04-05 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,381 vol	108,066
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,122 vol
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,381 vol	83,504
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+19,101 vol	59,891
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+16,847 vol	41,417
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-13,951 vol	24,570
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+7,673 vol	17,171
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+78,400 vol	106,455
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-14,027 vol	28,055
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$1,071 +300 vol $3.57 each	9,686
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+7,014 vol	9,386
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+154,263 vol	381,844
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,747 vol	227,581
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+19,101 vol	59,890
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-27,192 vol	40,789
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+34,381 vol	108,066
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,122 vol	73,685
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+442,277 vol	752,876
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-155,299 vol	310,599
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Holder: Linear Capital Corp. (Indirect Ownership)	Common Shares 10 - Acquisition or disposition in the public market	$-23,800 -7,000 vol $3.40 each	0
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-10,200 -3,000 vol $3.40 each	413,999
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+155,299 vol	416,999
Filed 2017-04-04 Tx date 2017-03-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+202,927 vol	265,221
Filed 2017-03-03 Tx date 2015-07-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,561 vol	49,123
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,561 vol	393,810
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-27,192 vol	40,790
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+27,192 vol	3,728,832
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,122 vol	73,685
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+49,122 vol	139,565
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-31,147 vol	62,294
Filed 2017-03-03 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+31,147 vol	31,147
Filed 2017-03-01 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+49,122 vol	406,888
Filed 2017-03-01 Tx date 2017-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-49,122 vol	73,685
Filed 2017-01-31 Tx date 2017-01-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$24,486 +10,600 vol $2.31 each	261,700
Filed 2017-01-03 Tx date 2016-12-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$936.54 +473 vol $1.98 each	27,981,325
Filed 2017-01-03 Tx date 2016-12-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-133,334 vol	277,328
Filed 2017-01-03 Tx date 2016-12-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+133,334 vol	256,413
Filed 2017-01-03 Tx date 2016-12-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$53.46 +27 vol $1.98 each	1,587,826
Filed 2016-12-22 Tx date 2016-12-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$36,911 +18,737 vol $1.97 each	27,980,852
Filed 2016-12-22 Tx date 2016-12-21	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$2,094 +1,063 vol $1.97 each	1,587,799
Filed 2016-12-20 Tx date 2016-12-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$123,635 +63,403 vol $1.95 each	27,957,005
Filed 2016-12-20 Tx date 2016-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-7,478.25 -3,835 vol $1.95 each	9,498
Filed 2016-12-20 Tx date 2016-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$-62,400 -32,000 vol $1.95 each	123,079
Filed 2016-12-20 Tx date 2016-12-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$7,014 +3,597 vol $1.95 each	1,586,446
Filed 2016-12-20 Tx date 2016-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$9,964 +5,110 vol $1.95 each	27,962,115
Filed 2016-12-20 Tx date 2016-12-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$565.50 +290 vol $1.95 each	1,586,736
Filed 2016-12-05 Tx date 2016-12-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$34,650 +15,000 vol $2.31 each	251,100
Filed 2016-12-01 Tx date 2016-11-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$173.85 +95 vol $1.83 each	27,893,602
Filed 2016-12-01 Tx date 2016-11-30	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$9.15 +5 vol $1.83 each	1,582,849
Filed 2016-11-25 Tx date 2016-11-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$5,051 +3,785 vol $1.33 each	27,893,507
Filed 2016-11-25 Tx date 2016-11-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$286.94 +215 vol $1.33 each	1,582,844
Filed 2016-11-22 Tx date 2016-11-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$6,328 +4,732 vol $1.34 each	27,889,722
Filed 2016-11-22 Tx date 2016-11-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$358.40 +268 vol $1.34 each	1,582,629
Filed 2016-11-18 Tx date 2016-11-17	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$289.59 +147 vol $1.97 each	2,372
Filed 2016-11-18 Tx date 2016-11-18	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$94,140 +52,300 vol $1.80 each	236,100
Filed 2016-10-19 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	+73,685 vol
Filed 2016-10-19 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 56 - Grant of rights	+73,685 vol	122,807
Filed 2016-10-14 Tx date 2016-10-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$16,182 +8,517 vol $1.90 each	27,884,990
Filed 2016-10-14 Tx date 2016-10-12	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 10 - Acquisition or disposition in the public market	$917.70 +483 vol $1.90 each	1,582,361
Filed 2016-10-11 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	+73,685 vol	122,807
Filed 2016-10-11 Tx date 2016-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$5,465 +3,028 vol $1.80 each	27,876,473
Filed 2016-10-11 Tx date 2016-10-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$57,961 +33,121 vol $1.75 each	27,873,445
Filed 2016-10-11 Tx date 2016-10-07	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$310.46 +172 vol $1.80 each	1,581,878
Filed 2016-10-11 Tx date 2016-10-05	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Fund II (Mexico) L.P. (Control or Direction)	Common Shares 11 - Acquisition or disposition carried out privately	$3,288 +1,879 vol $1.75 each	1,581,706
Filed 2016-09-29 Tx date 2016-09-28	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$19,775 +10,000 vol $1.98 each	183,800
Filed 2016-08-29 Tx date 2016-08-25	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$19,000 +9,500 vol $2.00 each	173,800
Filed 2016-08-25 Tx date 2016-08-24	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$79,996 +40,000 vol $2.00 each	369,249
Filed 2016-08-25 Tx date 2016-08-23	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$50,000 +25,000 vol $2.00 each	329,249
Filed 2016-08-25 Tx date 2015-11-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report		304,249
Filed 2016-08-23 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+73,684 vol	122,807
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+73,684 vol	73,684
Filed 2016-08-22 Tx date 2015-11-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Romero, Dionisio 4 - Director of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+40,789 vol	67,982
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+31,854 vol	38,521
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+42,082 vol	42,082
Filed 2016-08-22 Tx date 2016-07-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2016-08-22 Tx date 2016-07-15	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	McAllister, Michael 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report		2,225
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+133,501 vol	410,662
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+73,684 vol	122,807
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+40,789 vol	67,981
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+465,898 vol	465,898
Filed 2016-08-22 Tx date 2015-10-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2016-08-22 Tx date 2016-08-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Holder: Linear Capital Corp. (Indirect Ownership)	Common Shares 10 - Acquisition or disposition in the public market	$12,600 +7,000 vol $1.80 each	7,000
Filed 2016-08-22 Tx date 2015-10-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Holder: Linear Capital Corp. (Indirect Ownership)	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2016-08-22 Tx date 2016-08-22	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$62,835 +33,500 vol $1.88 each	164,300
Filed 2016-08-22 Tx date 2016-08-19	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 56 - Grant of rights	+93,441 vol	93,441
Filed 2016-08-22 Tx date 2015-07-13	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Babcock, Gordon 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 00 - Opening Balance-Initial SEDI Report
Filed 2016-03-02 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	$-25,052.22 -24,561 vol $1.02 each	49,122
Filed 2016-03-02 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	$25,052 +24,561 vol $1.02 each	357,766
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+13,596 vol	3,701,640
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,561 vol	231,904
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,561 vol	49,123
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+13,596 vol	213,387
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-13,596 vol	27,192
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+24,561 vol	90,443
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Gonzales, Igor 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-24,561 vol	49,123
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+5,246 vol	155,079
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-5,246 vol	277,161
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,333 vol	13,333
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,333 vol	6,667
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-13,596 vol	27,193
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Robyn, Thomas Lynn 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+5,724 vol	80,952
Filed 2016-03-01 Tx date 2016-03-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Robyn, Thomas Lynn 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-5,724 vol	11,446
Filed 2016-02-17 Tx date 2015-03-02	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	$183,151 +131,764 vol $1.39 each	289,979
Filed 2016-01-04 Tx date 2015-12-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+133,333 vol	149,833
Filed 2016-01-04 Tx date 2015-12-31	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Guimaraes, Edmundo Gontardo 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-133,333 vol	282,407
Filed 2015-12-05 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$5,060 +5,000 vol $1.01 each	125,000
Filed 2015-12-05 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$10,990 +10,000 vol $1.10 each	120,000
Filed 2015-12-05 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$880.00 +800 vol $1.10 each	130,800
Filed 2015-12-05 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$5,495 +5,000 vol $1.10 each	130,000
Filed 2015-12-04 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-21,040 vol	73,683
Filed 2015-12-04 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	$20,829 +21,040 vol $0.99 each	201,441
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+21,040 vol	207,343
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+31,687 vol	199,791
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Robyn, Thomas Lynn 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-4,000 vol	17,170
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Robyn, Thomas Lynn 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+4,000 vol	75,228
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-14,704 vol	40,789
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+14,704 vol	3,688,044
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-3,334 vol	10,000
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Neff, Jill 5 - Senior Officer of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+3,334 vol	10,000
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-31,687 vol	40,788
Filed 2015-12-02 Tx date 2015-12-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-21,040 vol	73,684
Filed 2015-11-16 Tx date 2015-11-16	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$3,908 +2,800 vol $1.40 each	110,000
Filed 2015-10-17 Tx date 2015-10-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$2,684 +2,200 vol $1.22 each	107,200
Filed 2015-10-17 Tx date 2015-10-14	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$5,760 +5,000 vol $1.15 each	105,000
Filed 2015-10-08 Tx date 2015-10-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 00 - Opening Balance-Initial SEDI Report
Filed 2015-10-08 Tx date 2015-10-08	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Brennan, Mark Peter 5 - Senior Officer of Issuer Direct Ownership	Common Shares 10 - Acquisition or disposition in the public market	$99,890 +100,000 vol $1.00 each	100,000
Filed 2015-06-05 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+17,065 vol	168,104
Filed 2015-06-05 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,093 vol	94,724
Filed 2015-06-05 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Cater, Douglas Frederick 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+11,093 vol	186,303
Filed 2015-06-05 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-6,825 vol	55,493
Filed 2015-06-05 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Renaud, Philip 4 - Director of Issuer Direct Ownership	Common Shares 57 - Exercise of rights	+6,825 vol	3,673,340
Filed 2015-06-05 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Dean, Steven G 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-17,065 vol	72,475
Filed 2015-06-01 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Kaelin Lizarraga, Guillermo Gustavo 4 - Director of Issuer Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,093 vol	94,724
Filed 2015-06-01 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Holder: Arias Resource Capital Management LP (Control or Direction)	Common Shares 57 - Exercise of rights	+22,186 vol	180,401
Filed 2015-06-01 Tx date 2015-06-01	$SMT Sierra Metals Inc. (formerly Dia Bras Exploration Inc.)	Arias, J. Alberto 4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder Direct Ownership	Restricted Share Unit 57 - Exercise of rights	-11,093 vol	94,723