Q2 2025 13F Holders as of 6/30/2025
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Type / Class
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Equity / Common shares
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Shares outstanding
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97.6M
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Number of holders
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129
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Total 13F shares, excl. options
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86M
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Shares change
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-298K
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Total reported value, excl. options
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$2.75B
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Value change
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+$9.5M
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Put/Call ratio
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3.41
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Number of buys
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69
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Number of sells
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-62
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Price
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$31.88
Significant Holders of ATS Corp /ATS - Common shares (ATS) as of Q2 2025
155 filings reported holding ATS - ATS Corp /ATS - Common shares as of Q2 2025.
ATS Corp /ATS - Common shares (ATS) has 129 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC).
These institutions hold a total of 86M shares
of 97.6M outstanding shares and own 88.12% of the company stock.
Largest 10 shareholders include MASON CAPITAL MANAGEMENT LLC (15.6M shares), TURTLE CREEK ASSET MANAGEMENT INC. (7.59M shares), Royal Bank of Canada (7.07M shares), Beutel, Goodman & Co Ltd. (6.83M shares), EdgePoint Investment Group Inc. (6.43M shares), VANGUARD GROUP INC (3.27M shares), FAIRFAX FINANCIAL HOLDINGS LTD/ CAN (2.49M shares), Connor, Clark & Lunn Investment Management Ltd. (2.37M shares), Clearbridge Investments, LLC (1.85M shares), and ACK Asset Management LLC (1.85M shares).
This table shows the top 129 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.
| Investor |
Option |
Weight % |
Change % |
Value $ |
* Price $ |
Shares |
Share Change |
Activity |
Report Period |
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.