Institutional Ownership
Ats Corporation
CUSIP 00217Y104COMATSQ1 2026
13D / 13G Filings
14
Schedule 13D/13G on record
Beneficial Filers
7
Distinct reporting persons
Largest Stake
18.2%
Max % of class reported
Institutional Holders
122
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
14 filings · latest Feb 17, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 17, 2026 | Turtle Creek Asset Management Inc. | 13G/A | 11.0% | 5.64M | SEC |
| 2 | Feb 13, 2026 | Royal Bank Of Canada | 13G/A | 6.6% | 6.49M | SEC |
| 3 | Oct 20, 2025 | Royal Bank Of Canada | 13G | 5.3% | 5.15M | SEC |
| 4 | Aug 14, 2025 | Edgepoint Investment Group Inc. | 13G/A | 6.6% | 6.43M | SEC |
| 5 | Aug 14, 2025 | Turtle Creek Asset Management Inc. | 13G/A | 11.0% | 7.59M | SEC |
| 6 | Jul 21, 2025 | Bank Of Nova Scotia | 13G | 1.5% | 1.44M | SEC |
| 7 | Jun 5, 2025 | Turtle Creek Asset Management Inc. | 13G | 11.0% | 8.91M | SEC |
| 8 | May 15, 2025 | Edgepoint Investment Group Inc. | 13G | 5.1% | 5.02M | SEC |
| 9 | May 7, 2025 | Bank Of Nova Scotia | 13G/A | 5.3% | 5.20M | SEC |
| 10 | Jan 6, 2025 | Beutel, Goodman &Amp; Co Ltd. | 13G | 6.7% | 6.52M | SEC |
4 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Ats Corporation.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Mason Capital Management LLC | 16.40M | $462.60M |
| 2 | Royal Bank Of Canada | 7.76M | $218.88M |
| 3 | Edgepoint Investment Group Inc. | 7.17M | $202.08M |
| 4 | Turtle Creek Asset Management Inc. | 4.90M | $138.09M |
| 5 | Bank Of Montreal /Can/ | 3.12M | $87.83M |
| 6 | Fairfax Financial Holdings Ltd/ Can | 2.49M | $69.35M |
| 7 | Janus Henderson Group PLC | 2.30M | $64.54M |
| 8 | Fmr LLC | 2.28M | $64.19M |
| 9 | Connor, Clark & Lunn Investment Management Ltd. | 2.26M | $63.85M |
| 10 | Ack Asset Management LLC | 1.85M | $52.06M |