ATS Corp
ATS- Exchange
- NYSE
- Industry
- General Industrial Machinery & Equipment, NEC
- SEC CIK
- 0001394832
No open-market purchases or sales by ATS Corp insiders were filed in the last 90 days; 141 institutions reported holding it in 13F filings for Q2 2026, worth $2.37B in total; Fairfax Financial is the only superinvestor holding it.
Holders of 5% or more of ATS
Holders whose latest Schedule 13D or 13G filing reports 5% or more of ATS Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Royal Bank of Canada | 13G/A | 6.62%6.49M shares | +1.36 ppfrom 5.26% | Oct 20, 20252 filings | Feb 13, 2026 | SEC |
| EdgePoint Investment Group Inc. | 13G/A | 6.59%6.43M shares | +1.47 ppfrom 5.12% | May 15, 20252 filings | Aug 14, 2025 | SEC |
| Turtle Creek Asset Management Inc. | 13G/A | 5.80%5.64M shares | −2.00 ppfrom 7.80% | Jun 5, 20253 filings | Feb 17, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
9 Schedule 13D and 13G filings on ATS Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 17, 20264:26 PM ET | Turtle Creek Asset Management Inc. | 13G/A | 5.80%5.64M shares | −2.00 ppfrom 7.80% | Dec 31, 2025 | SEC |
| Feb 13, 20262:11 PM ET | Royal Bank of Canada | 13G/A | 6.62%6.49M shares | +1.36 ppfrom 5.26% | Dec 31, 2025 | SEC |
| Oct 20, 20253:50 PM ET | Royal Bank of Canada | 13G | 5.26%5.15M shares | New | Mar 31, 2025 | SEC |
| Aug 14, 20255:30 PM ET | Turtle Creek Asset Management Inc. | 13G/A | 7.80%7.59M shares | −1.40 ppfrom 9.20% | Jun 30, 2025 | SEC |
| Aug 14, 20254:55 PM ET | EdgePoint Investment Group Inc. | 13G/A | 6.59%6.43M shares | +1.47 ppfrom 5.12% | Jun 30, 2025 | SEC |
| Jul 21, 20251:44 PM ET | Bank of Nova Scotia | 13G | 1.48%1.44M shares | −3.83 ppfrom 5.31%Below 5% | Jun 30, 2025 | SEC |
| Jun 5, 202510:57 AM ET | Turtle Creek Asset Management Inc. | 13G | 9.20%8.91M shares | New | Sep 30, 2024 | SEC |
| May 15, 20254:22 PM ET | EdgePoint Investment Group Inc. | 13G | 5.12%5.02M shares | New | Mar 31, 2025 | SEC |
| May 7, 20255:34 PM ET | Bank of Nova Scotia | 13G/A | 5.31%5.20M shares | – | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell ATS Corp shares.
No Form 144 notices for ATS Corp are on file.