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.
13F holders, Q3 2025
Institutional positions in ATS Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 115
- −15 vs. Q2 2025
- Shares held
- 83.5M
- −2.25M (−2.6%) vs. Q2 2025
- Total value
- $2.20B
- −$539.7M (−19.7%) vs. Q2 2025
- New holders
- 15
- 41 more added
- Sold out
- 30
- 45 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ATS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 141 | $2.37B |
| Q1 2026 | 131 | $2.39B |
| Q4 2025 | 122 | $2.30B |
| Q3 2025 | 115 | $2.20B |
| Q2 2025 | 131 | $2.77B |
| Q1 2025 | 122 | $2.18B |
| Q4 2024 | 129 | $2.62B |
| Q3 2024 | 130 | $2.36B |
| Q2 2024 | 132 | $2.64B |
| Q1 2024 | 136 | $2.77B |
| Q4 2023 | 132 | $3.27B |
| Q3 2023 | 127 | $3.21B |
| Q2 2023 | 131 | $3.53B |
| Q1 2023 | 3 | $80.6M |
| Q4 2022 | 2 | $33.4M |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding ATS Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 1,251,695 | $32.8M | 0.00% | +389,862+45.2% | Added |
| Alberta Investment Management Corp | 1,340,265 | $35.1M | 0.25% | +572,665+74.6% | Added |
| FMR LLC | 1,375,587 | $36.0M | 0.00% | −29,425−2.1% | Reduced |
| TD Waterhouse Canada Inc. | 1,430,232 | $37.4M | 0.24% | −22,088−1.5% | Reduced |
| Hill City Capital, LP | 1,649,857 | $43.2M | 1.83% | +425,000+34.7% | Added |
| ACK Asset Management LLC | 1,846,196 | $48.4M | 6.05% | 00.0% | Unchanged |
| Burgundy Asset Management Ltd. | 1,807,557 | $50.0M | 0.47% | −4,590−0.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 2,053,472 | $53.7M | 0.17% | −315,556−13.3% | Reduced |
| Fairfax Financial Holdings LtdSuperinvestorFairfax Financial | 2,486,400 | $64.1M | 3.11% | 00.0% | Unchanged |
| Vanguard Group Inc | 3,341,435 | $87.4M | 0.00% | +69,334+2.1% | Added |
| Beutel, Goodman & Co Ltd. | 6,330,688 | $165.7M | 1.00% | −503,800−7.4% | Reduced |
| EdgePoint Investment Group Inc. | 6,381,294 | $166.9M | 1.25% | −52,711−0.8% | Reduced |
| Turtle Creek Asset Management Inc. | 6,973,010 | $182.7M | 5.51% | −617,528−8.1% | Reduced |
| Royal Bank of Canada | 7,201,778 | $188.7M | 0.03% | +127,157+1.8% | Added |
| Mason Capital Management LLC | 15,563,568 | $407.8M | 82.99% | 00.0% | Unchanged |
| Capital World Investors | 0 | $0 | 0.00% | −1,196,000−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −611,120−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −279,805−100.0% | Sold out |
| Lombard Odier Asset Management (Europe) Ltd | 0 | $0 | 0.00% | −122,148−100.0% | Sold out |
| Waratah Capital Advisors Ltd. | 0 | $0 | 0.00% | −118,480−100.0% | Sold out |
| Natixis Advisors, L.P. | 0 | $0 | 0.00% | −98,912−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −80,962−100.0% | Sold out |
| FIL Ltd | 0 | $0 | 0.00% | −35,436−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −32,225−100.0% | Sold out |
| Ewing Morris & Co. Investment Partners Ltd. | 0 | $0 | 0.00% | −31,600−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −28,803−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −28,082−100.0% | Sold out |
| Gluskin Sheff & Assoc Inc | 0 | $0 | 0.00% | −19,053−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −11,283−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −10,774−100.0% | Sold out |
| Cidel Asset Management Inc | 0 | $0 | 0.00% | −9,270−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −8,990−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −8,810−100.0% | Sold out |
| SkyView Investment Advisors, LLC | 0 | $0 | 0.00% | −7,449−100.0% | Sold out |
| JustInvest LLC | 0 | $0 | 0.00% | −7,316−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −6,885−100.0% | Sold out |
| Cresset Asset Management, LLC | 0 | $0 | 0.00% | −6,466−100.0% | Sold out |
| Stephenson National Bank & Trust | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,348−100.0% | Sold out |
| Washington Trust Advisors, Inc. | 0 | $0 | 0.00% | −178−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −120−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −85−100.0% | Sold out |
| Geneos Wealth Management Inc. | 0 | $0 | 0.00% | −57−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −38−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |