| # | Holder | Shares | % of Shares Out | Change | Filing Date |
|---|---|---|---|---|---|
| 1 |
Mason Capital Management LLC
|
16.404m | 16.91% | +840.602k | Mar 31 2026 |
| 2 |
Turtle Creek Asset Management Inc.
|
10.386m | 10.70% | +4.744m | Mar 31 2026 |
| 3 |
EdgePoint Investment Group Inc.
|
7.168m | 7.39% | +279.327k | Mar 31 2026 |
| 4 |
RBC Global Asset Management Inc.
|
6.552m | 6.75% | +142.495k | Mar 31 2026 |
| 5 |
Beutel, Goodman & Company Ltd.
|
5.455m | 5.62% | -382.389k | Mar 31 2026 |
|
1
Mason Capital Management LLC
|
16.91%
16.404m
|
|
2
Turtle Creek Asset Management Inc.
|
10.70%
10.386m
|
|
3
EdgePoint Investment Group Inc.
|
7.39%
7.168m
|
|
4
RBC Global Asset Management Inc.
|
6.75%
6.552m
|
|
5
Beutel, Goodman & Company Ltd.
|
5.62%
5.455m
|
| The largest shareholders show who really holds influence: big institutional owners shape a stock's liquidity, and building or cutting positions can move the price. | |
| The 5 largest shareholders together hold 47.38% of ATS Corporation, with Mason Capital Management LLC the biggest at 16.91%, followed by Turtle Creek Asset Management Inc. (10.70%) and EdgePoint Investment Group Inc. (7.39%). |
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