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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.
Recent filings
Filed 2025-12-15 13:35
Tx date 2025-12-11 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
36 - Conversion or exchange
+4,600 vol 		27,226,513
Filed 2025-12-15 13:34
Tx date 2025-12-11 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Common Shares Class II
36 - Conversion or exchange
-4,000 vol 		11,542,320
Filed 2025-12-15 13:23
Tx date 2025-12-11 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Halo Holdings Inc. (Indirect Ownership)
Non-Voting Shares Class I
36 - Conversion or exchange
+11,557 vol 		24,359
Filed 2025-12-15 13:21
Tx date 2025-12-11 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Direct Ownership
Non-Voting Shares Class I
36 - Conversion or exchange
+345 vol 		28,210
Filed 2025-12-15 13:20
Tx date 2025-12-11 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Halo Holdings Inc. (Indirect Ownership)
Common Shares Class II
36 - Conversion or exchange
-10,050 vol 		0
Filed 2025-12-15 13:18
Tx date 2025-12-11 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Direct Ownership
Common Shares Class II
36 - Conversion or exchange
-300 vol 		0
Older filings
Filed 2025-12-10 17:20
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$360,106
+6,725 vol
$53.55 each 		27,221,913
Filed 2025-12-10 17:19
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$535,999
+10,000 vol
$53.60 each 		27,215,188
Filed 2025-12-10 17:19
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$267,250
+5,000 vol
$53.45 each 		27,205,188
Filed 2025-12-10 17:18
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$266,747
+5,000 vol
$53.35 each 		27,200,188
Filed 2025-12-10 17:18
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$266,000
+5,000 vol
$53.20 each 		27,195,188
Filed 2025-12-10 17:17
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$529,000
+10,000 vol
$52.90 each 		27,190,188
Filed 2025-12-10 17:17
Tx date 2025-12-08 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$142,425
+2,700 vol
$52.75 each 		27,180,188
Filed 2025-11-24 11:48
Tx date 2025-11-14 		$AKT
Akita Drilling Ltd. 		Southern-Heathcott, Linda A.
4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder
Direct Ownership
Options
50 - Grant of options 		$564,000
+300,000 vol
$1.88 each 		1,775,000
Filed 2025-11-13 15:34
Tx date 2025-11-06 		$CU
Canadian Utilities Limited 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Direct Ownership
Non-Voting Shares Class A
30 - Acquisition or disposition under a purchase/ownership plan 		$57,779
+1,509 vol
$38.29 each 		14,792
Filed 2025-11-13 15:33
Tx date 2025-11-06 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Direct Ownership
Non-Voting Shares Class I
30 - Acquisition or disposition under a purchase/ownership plan 		$106,144
+2,094 vol
$50.69 each 		27,865
Filed 2025-10-01 17:03
Tx date 2025-10-01 		$AKT
Akita Drilling Ltd. 		Southern-Heathcott, Linda A.
4 - Director of Issuer, 6 - Director or Senior Officer of 10% Security Holder
Direct Ownership
Non-Voting Shares
30 - Acquisition or disposition under a purchase/ownership plan 		$1,749
+837 vol
$2.09 each 		27,994
Filed 2025-09-23 12:54
Tx date 2025-09-22 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$1,210,000
+25,000 vol
$48.40 each 		27,177,488
Filed 2025-09-23 12:53
Tx date 2025-09-22 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$640,395
+13,245 vol
$48.35 each 		27,152,488
Filed 2025-09-23 12:53
Tx date 2025-09-22 		$ACO
ATCO LTD. 		Southern-Heathcott, Linda A.
4 - Director of Issuer
Holder: Trustee (Spousal Trust) (Indirect Ownership)
Non-Voting Shares Class I
10 - Acquisition or disposition in the public market 		$476,190
+9,900 vol
$48.10 each 		27,139,243