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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 2024-03-07 17:15
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-155,546.33
-7,789 vol
$19.97 each 		13,091
Filed 2024-03-06 10:48
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-155,546.33
-7,789 vol
$19.97 each
Filed 2024-03-06 10:51
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
59 - Exercise for cash 		$-189,382.3064
-3,304 vol
$57.32 each 		29,133
Filed 2024-03-06 10:48
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-155,546.33
-7,789 vol
$19.97 each 		13,091
Filed 2024-03-06 10:46
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
59 - Exercise for cash 		$189,382
+3,304 vol
$57.32 each
Filed 2024-03-06 10:45
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$65,980
+3,304 vol
$19.97 each 		32,437
Filed 2024-03-06 10:42
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$54,378
+2,723 vol
$19.97 each 		29,133
Filed 2024-03-06 10:40
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
57 - Exercise of rights 		$-103,544.45
-5,185 vol
$19.97 each 		9,329
Filed 2024-03-06 10:39
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
56 - Grant of rights
+2,170 vol 		14,514
Filed 2024-03-06 10:37
Tx date 2024-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+3,260 vol 		20,880
Filed 2023-12-29 15:09
Tx date 2023-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+7 vol 		12,344
Filed 2023-12-29 15:08
Tx date 2023-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+7 vol 		12,337
Filed 2023-12-29 15:07
Tx date 2023-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+10 vol 		12,330
Filed 2023-12-29 15:05
Tx date 2023-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+9 vol 		17,620
Filed 2023-12-29 15:04
Tx date 2023-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+10 vol 		17,611
Filed 2023-12-29 15:03
Tx date 2023-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+15 vol 		17,601
Filed 2023-12-08 11:56
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-273,180.30
-17,890 vol
$15.27 each 		0
Filed 2023-12-08 10:16
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-1,112,042.40
-17,890 vol
$62.16 each 		26,410
Filed 2023-12-08 10:15
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-1,715,616
-27,600 vol
$62.16 each 		44,300
Filed 2023-12-08 10:14
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
51 - Exercise of options 		$273,180
+17,890 vol
$15.27 each 		71,900
Filed 2023-12-08 10:13
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
51 - Exercise of options 		$312,432
+27,600 vol
$11.32 each 		54,010
Filed 2023-12-08 10:12
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-273,180.30
-17,890 vol
$15.27 each
Filed 2023-12-08 10:12
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-273,180.30
-17,890 vol
$15.27 each 		0
Filed 2023-12-08 10:09
Tx date 2023-12-05 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-312,432
-27,600 vol
$11.32 each 		17,890
Filed 2023-09-12 21:03
Tx date 2023-09-07 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-1,202,835.60
-23,880 vol
$50.37 each 		26,410
Filed 2023-09-12 21:02
Tx date 2023-09-07 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
51 - Exercise of options 		$351,036
+23,880 vol
$14.70 each 		50,290
Filed 2023-09-12 21:01
Tx date 2023-09-07 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-351,036
-23,880 vol
$14.70 each 		45,490
Filed 2023-03-06 20:22
Tx date 2023-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$180,178
+4,701 vol
$38.33 each 		26,410
Filed 2023-03-06 20:21
Tx date 2023-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
59 - Exercise for cash 		$-230,615.931
-6,069 vol
$38.00 each 		21,709
Filed 2023-03-06 20:20
Tx date 2023-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$230,615
+6,069 vol
$38.00 each 		27,778
Filed 2023-03-06 20:18
Tx date 2023-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
57 - Exercise of rights 		$-103,955.94
-8,954 vol
$11.61 each 		12,320
Filed 2023-03-06 20:16
Tx date 2023-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
56 - Grant of rights
+3,670 vol 		21,274
Filed 2023-03-06 20:14
Tx date 2023-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-155,864.25
-13,425 vol
$11.61 each 		17,586
Filed 2023-03-06 20:12
Tx date 2023-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+4,600 vol 		31,011
Filed 2023-02-21 09:35
Tx date 2022-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+14 vol 		17,604
Filed 2023-02-21 09:34
Tx date 2022-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+21 vol 		17,590
Filed 2023-02-21 09:32
Tx date 2022-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+36 vol 		17,569
Filed 2023-02-21 09:31
Tx date 2022-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+21 vol 		26,411
Filed 2023-02-21 09:29
Tx date 2022-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+31 vol 		26,390
Filed 2023-02-21 09:28
Tx date 2022-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+53 vol 		26,359
Filed 2022-03-23 12:30
Tx date 2022-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-148,836.69
-9,747 vol
$15.27 each 		26,306
Filed 2022-03-07 14:41
Tx date 2022-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-218,437.35
-14,305 vol
$15.27 each
Filed 2022-03-07 14:43
Tx date 2022-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$234,812
+7,510 vol
$31.27 each 		21,709
Filed 2022-03-07 14:41
Tx date 2022-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-218,437.35
-14,305 vol
$15.27 each 		21,748
Filed 2022-03-05 15:17
Tx date 2021-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+15 vol 		14,073
Filed 2022-03-05 15:15
Tx date 2021-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+26 vol 		14,058
Filed 2022-03-05 15:14
Tx date 2021-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+23 vol 		30,863
Filed 2022-03-05 15:12
Tx date 2021-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+39 vol 		30,840
Filed 2022-03-05 15:11
Tx date 2021-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+29 vol 		30,801
Filed 2022-03-04 17:21
Tx date 2022-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
56 - Grant of rights
+3,460 vol 		17,492
Filed 2022-03-04 17:20
Tx date 2022-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+5,190 vol 		35,962
Filed 2021-09-16 18:32
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-676,821.20
-22,220 vol
$30.46 each 		14,199
Filed 2021-09-16 18:31
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-479,897.30
-15,755 vol
$30.46 each 		36,419
Filed 2021-09-16 18:30
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$-290,379.10
-9,530 vol
$30.47 each 		52,174
Filed 2021-09-16 18:30
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
51 - Exercise of options 		$363,963
+22,220 vol
$16.38 each 		61,704
Filed 2021-09-16 18:29
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
51 - Exercise of options 		$304,071
+15,755 vol
$19.30 each 		39,484
Filed 2021-09-16 18:28
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
51 - Exercise of options 		$255,499
+9,530 vol
$26.81 each 		23,729
Filed 2021-09-16 18:26
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-363,963.60
-22,220 vol
$16.38 each 		69,370
Filed 2021-09-16 18:25
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-304,071.50
-15,755 vol
$19.30 each 		91,590
Filed 2021-09-16 18:25
Tx date 2021-09-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
51 - Exercise of options 		$-255,499.30
-9,530 vol
$26.81 each 		107,345
Filed 2021-03-05 14:40
Tx date 2021-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
59 - Exercise for cash 		$-174,872.304
-8,628 vol
$20.27 each 		14,199
Filed 2021-03-05 14:39
Tx date 2021-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$174,872
+8,628 vol
$20.27 each 		22,827
Filed 2021-03-05 14:37
Tx date 2021-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-231,946.992
-11,444 vol
$20.27 each 		30,772
Filed 2021-03-05 14:35
Tx date 2021-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights 		$154,168
+7,720 vol
$19.97 each 		42,216
Filed 2021-03-05 14:34
Tx date 2021-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
56 - Grant of rights 		$102,645
+5,140 vol
$19.97 each 		14,032
Filed 2021-03-05 14:30
Tx date 2021-02-28 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
52 - Expiration of options 		$-247,940
-11,270 vol
$22.00 each 		116,875
Filed 2020-12-18 09:18
Tx date 2020-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+42 vol 		8,892
Filed 2020-12-18 09:16
Tx date 2020-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+63 vol 		34,496
Filed 2020-12-18 09:15
Tx date 2020-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+46 vol 		34,433
Filed 2020-12-18 09:14
Tx date 2020-12-15 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
30 - Acquisition or disposition under a purchase/ownership plan
+54 vol 		34,387
Filed 2020-05-14 10:35
Tx date 2020-05-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
52 - Expiration of options
-9,125 vol 		128,145
Filed 2020-03-07 10:22
Tx date 2020-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$34,497
+3,050 vol
$11.31 each
Filed 2020-03-07 10:21
Tx date 2020-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
57 - Exercise of rights 		$34,497
+3,050 vol
$11.31 each 		14,199
Filed 2020-03-07 10:19
Tx date 2020-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$34,497
+3,050 vol
$11.31 each
Filed 2020-03-07 10:18
Tx date 2020-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
58 - Expiration of rights
-2,320 vol 		34,333
Filed 2020-03-07 10:17
Tx date 2020-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-66,053.904
-5,840 vol
$11.31 each 		36,653
Filed 2020-03-07 10:15
Tx date 2020-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
56 - Grant of rights
+8,850 vol 		8,850
Filed 2020-03-07 10:14
Tx date 2010-05-17 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Restricted Share Units
00 - Opening Balance-Initial SEDI Report
Filed 2020-03-07 10:14
Tx date 2020-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+13,270 vol 		42,493
Filed 2019-12-16 15:00
Tx date 2019-12-13 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+63 vol 		29,223
Filed 2019-12-16 12:21
Tx date 2019-12-13 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+74 vol 		29,160
Filed 2019-03-05
Tx date 2019-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$35,077
+2,294 vol
$15.29 each 		11,149
Filed 2019-03-05
Tx date 2019-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-68,487.9411
-4,479 vol
$15.29 each 		31,937
Filed 2019-03-05
Tx date 2019-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
58 - Expiration of rights
-2,851 vol 		29,086
Filed 2019-03-04
Tx date 2019-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+9,610 vol 		36,416
Filed 2019-03-04
Tx date 2019-02-28 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
52 - Expiration of options
-10,500 vol 		119,380
Filed 2019-03-04
Tx date 2019-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
50 - Grant of options
+17,890 vol 		137,270
Filed 2018-12-18
Tx date 2018-12-14 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+56 vol 		26,806
Filed 2018-03-05
Tx date 2018-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+11,260 vol 		32,346
Filed 2018-03-05
Tx date 2018-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
50 - Grant of options
+27,600 vol 		129,880
Filed 2018-03-05
Tx date 2018-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$21,183
+1,863 vol
$11.37 each 		8,855
Filed 2018-03-05
Tx date 2018-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-41,741.8397
-3,671 vol
$11.37 each 		28,675
Filed 2018-03-05
Tx date 2018-03-02 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
58 - Expiration of rights
-1,925 vol 		26,750
Filed 2017-03-06
Tx date 2017-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$18,484
+1,265 vol
$14.61 each 		6,992
Filed 2017-03-06
Tx date 2017-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
58 - Expiration of rights
-1,513 vol 		21,086
Filed 2017-03-06
Tx date 2017-03-03 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-34,295.3028
-2,347 vol
$14.61 each 		22,599
Filed 2017-03-03
Tx date 2017-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
50 - Grant of options
+23,880 vol 		102,280
Filed 2017-03-03
Tx date 2017-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+8,160 vol 		24,946
Filed 2016-03-04
Tx date 2016-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Common Shares
10 - Acquisition or disposition in the public market 		$47,724
+2,890 vol
$16.51 each 		5,727
Filed 2016-03-04
Tx date 2016-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
56 - Grant of rights
+7,330 vol 		16,786
Filed 2016-03-04
Tx date 2016-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Rights Performance Share Units
57 - Exercise of rights 		$-74,475.885
-4,510 vol
$16.51 each 		9,456
Filed 2016-03-04
Tx date 2016-03-01 		$CCO
Cameco Corporation 		Leach, Mark Sean
5 - Senior Officer of Issuer
Direct Ownership
Options
50 - Grant of options
+22,220 vol 		78,400