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, Q2 2026
Institutional positions in ATS Corp as of Jun 30, 2026. 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
- 141
- +11 vs. Q1 2026
- Shares held
- 81.6M
- −1.18M (−1.4%) vs. Q1 2026
- Total value
- $2.37B
- +$43.5M (+1.9%) vs. Q1 2026
- New holders
- 25
- 55 more added
- Sold out
- 14
- 46 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding ATS Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mason Capital Management LLC | 16,404,170 | $472.1M | 77.78% | 00.0% | Unchanged |
| Royal Bank of Canada | 7,881,423 | $226.8M | 0.04% | +119,585+1.5% | Added |
| EdgePoint Investment Group Inc. | 7,004,577 | $201.7M | 1.52% | −163,535−2.3% | Reduced |
| Beutel, Goodman & Co Ltd. | 4,796,922 | $138.2M | 1.02% | −657,827−12.1% | Reduced |
| Turtle Creek Asset Management Inc. | 3,084,567 | $88.8M | 3.47% | −1,812,102−37.0% | Reduced |
| Bank of Montreal | 3,062,973 | $88.2M | 0.03% | −52,387−1.7% | Reduced |
| FMR LLC | 2,905,456 | $83.7M | 0.00% | +627,984+27.6% | Added |
| Fairfax Financial Holdings LtdSuperinvestorFairfax Financial | 2,486,400 | $70.5M | 2.67% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 2,398,431 | $69.1M | 0.00% | +31,701+1.3% | Added |
| Jupiter Topco LLC | 2,322,073 | $66.9M | 0.03% | +2,322,073 | New |
| Hill City Capital, LP | 1,649,857 | $47.5M | 1.11% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 1,683,683 | $47.4M | 0.12% | +49,234+3.0% | Added |
| ACK Asset Management LLC | 1,500,000 | $43.2M | 5.04% | −346,196−18.8% | Reduced |
| FIL Ltd | 1,326,851 | $38.2M | 0.03% | −451,330−25.4% | Reduced |
| Alberta Investment Management Corp | 1,177,491 | $33.9M | 0.20% | +237,300+25.2% | Added |
| Scheer, Rowlett & Associates Investment Management Ltd. | 1,175,268 | $33.8M | 2.43% | −6,669−0.6% | Reduced |
| Kempen Capital Management N.V. | 795,619 | $32.5M | 0.25% | −67,867−7.9% | Reduced |
| Bank of America Corp | 1,122,152 | $32.3M | 0.00% | +176,277+18.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 1,089,460 | $31.4M | 0.06% | −1,175,297−51.9% | Reduced |
| Norges Bank | 1,084,181 | $31.2M | 0.00% | +1,084,181 | New |
| Clearbridge Investments, LLC | 1,060,487 | $30.5M | 0.03% | −30,804−2.8% | Reduced |
| Legal & General Group Plc | 1,056,408 | $30.4M | 0.01% | +444,719+72.7% | Added |
| TD Asset Management Inc | 1,003,596 | $28.9M | 0.03% | −418,863−29.4% | Reduced |
| Marathon Asset Mgmt Ltd | 954,485 | $27.5M | 1.12% | −139,426−12.7% | Reduced |
| National Bank of Canada | 855,316 | $24.2M | 0.02% | +207,034+31.9% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 788,784 | $22.7M | 0.03% | +30,471+4.0% | Added |
| Massachusetts Financial Services Co | 540,733 | $22.1M | 0.01% | +6,776+1.3% | Added |
| Mackenzie Financial Corp | 524,774 | $21.5M | 0.02% | −91,730−14.9% | Reduced |
| Vanguard Fiduciary Trust Co | 724,271 | $20.9M | 0.00% | −3,787−0.5% | Reduced |
| Langdon Equity Partners | 600,000 | $17.3M | 9.66% | +600,000 | New |
| Toronto Dominion Bank | 406,916 | $11.7M | 0.02% | +313,741+336.7% | Added |
| Public Sector Pension Investment Board | 378,001 | $10.9M | 0.03% | +21,164+5.9% | Added |
| 1832 Asset Management L.P. | 355,745 | $10.2M | 0.01% | −45,951−11.4% | Reduced |
| Waratah Capital Advisors Ltd. | 334,923 | $9.64M | 0.74% | +110,940+49.5% | Added |
| CIBC World Markets Inc. | 327,087 | $9.42M | 0.02% | −19,519−5.6% | Reduced |
| ArrowMark Colorado Holdings LLC | 280,000 | $8.06M | 0.34% | +106,000+60.9% | Added |
| Vanguard Global Advisers, LLC | 274,103 | $7.90M | 0.00% | +15,105+5.8% | Added |
| Roubaix Capital, LLC | 246,909 | $7.11M | 2.55% | +246,909 | New |
| Charles Schwab Investment Management Inc | 243,525 | $7.02M | 0.00% | +4,871+2.0% | Added |
| Morgan Stanley | 234,236 | $6.74M | 0.00% | +133,846+133.3% | Added |
| Goldman Sachs Group Inc | 223,762 | $6.44M | 0.00% | +171,511+328.2% | Added |
| UBS Group AG | 222,553 | $6.41M | 0.00% | −5,075−2.2% | Reduced |
| Dixon Mitchell Investment Counsel Inc. | 211,025 | $6.08M | 0.20% | 00.0% | Unchanged |
| Scotia Capital Inc. | 212,719 | $6.02M | 0.02% | +20,189+10.5% | Added |
| Jane Street Group, LLC | 199,635 | $5.75M | 0.00% | +116,994+141.6% | Added |
| Granite Investment Partners, LLC | 195,894 | $5.64M | 0.29% | +22,863+13.2% | Added |
| Van Berkom & Associates Inc. | 188,066 | $5.41M | 0.17% | −69,294−26.9% | Reduced |
| Colony Group, LLC | 181,975 | $5.24M | 0.01% | 00.0% | Unchanged |
| First Trust Advisors LP | 181,592 | $5.23M | 0.00% | +27,189+17.6% | Added |
| Swiss National Bank | 168,000 | $4.83M | 0.00% | +3,600+2.2% | Added |
| Dimensional Fund Advisors LP | 167,149 | $4.81M | 0.00% | +44,693+36.5% | Added |
| Candelo Capital Management LP | 165,100 | $4.76M | 3.49% | +13,412+8.8% | Added |
| Delaney Capital Management Ltd. | 160,392 | $4.61M | 0.73% | +6,315+4.1% | Added |
| NewGen Asset Management Ltd | 150,000 | $4.32M | 2.37% | +150,000 | New |
| CIBC Asset Management Inc | 138,246 | $3.98M | 0.01% | +4,060+3.0% | Added |
| Front Street Capital Management, Inc. | 124,973 | $3.60M | 0.41% | −136,115−52.1% | Reduced |
| Harbor Capital Advisors, Inc. | 115,198 | $3.31M | 0.23% | +12,030+11.7% | Added |
| Louisbourg Investments Inc. | 111,104 | $3.20M | 0.59% | +26,249+30.9% | Added |
| Polar Asset Management Partners Inc. | 105,203 | $3.03M | 0.06% | +105,203 | New |
| British Columbia Investment Management Corp | 101,546 | $2.92M | 0.02% | +31,124+44.2% | Added |
| K.J. Harrison & Partners Inc | 100,000 | $2.88M | 0.41% | +100,000 | New |
| Montrusco Bolton Investments Inc. | 99,056 | $2.85M | 0.04% | −71,900−42.1% | Reduced |
| SEI Investments Co | 97,376 | $2.80M | 0.00% | −70,444−42.0% | Reduced |
| PCJ Investment Counsel Ltd. | 85,640 | $2.47M | 0.71% | +35,640+71.3% | Added |
| Canoe Financial LP | 83,024 | $2.39M | 0.03% | −4,406−5.0% | Reduced |
| Hallstatt Advisors L.P. | 83,020 | $2.39M | 1.68% | +83,020 | New |
| Lazard Asset Management LLC | 83,052 | $2.39M | 0.00% | +13,140+18.8% | Added |
| Citadel Advisors LLC | 82,308 | $2.37M | 0.00% | +1,069+1.3% | Added |
| Manufacturers Life Insurance Company, The | 73,654 | $2.12M | 0.00% | −476−0.6% | Reduced |
| Geode Capital Management, LLC | 69,598 | $2.04M | 0.00% | +800+1.2% | Added |
| Vanguard Asset Management, Ltd | 66,830 | $1.93M | 0.00% | 00.0% | Unchanged |
| CenterBook Partners LP | 65,180 | $1.88M | 0.09% | +65,180 | New |
| Nuveen, LLC | 62,584 | $1.80M | 0.00% | 00.0% | Unchanged |
| Caldwell Investment Management Ltd. | 60,800 | $1.75M | 1.15% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 59,867 | $1.72M | 0.03% | +59,867 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 54,361 | $1.57M | 0.00% | +22,911+72.8% | Added |
| Federation des caisses Desjardins du Quebec | 54,947 | $1.56M | 0.00% | −58,100−51.4% | Reduced |
| Van Eck Associates Corp | 46,507 | $1.34M | 0.00% | +22,236+91.6% | Added |
| Guardian Capital LP | 46,433 | $1.34M | 0.03% | −522−1.1% | Reduced |
| Intact Investment Management Inc. | 40,489 | $1.17M | 0.03% | −12,900−24.2% | Reduced |
| Aviso Financial Inc. | 40,111 | $1.16M | 0.04% | −5,649−12.3% | Reduced |
| PenderFund Capital Management Ltd. | 37,700 | $1.09M | 0.14% | +17,700+88.5% | Added |
| Citigroup Inc | 36,651 | $1.06M | 0.00% | +9,835+36.7% | Added |
| Bank of Nova Scotia Trust Co | 35,291 | $1.02M | 0.08% | +959+2.8% | Added |
| XTX Topco Ltd | 35,013 | $1.01M | 0.01% | +35,013 | New |
| Susquehanna International Group, LLP | 34,791 | $1.00M | 0.00% | +34,791 | New |
| American Century Companies Inc | 32,500 | $936.8K | 0.00% | +32,500 | New |
| Engineers Gate Manager LP | 31,363 | $902.6K | 0.01% | +18,311+140.3% | Added |
| Verition Fund Management LLC | 29,513 | $849.4K | 0.01% | +29,513 | New |
| Public Employees Retirement System of Ohio | 28,366 | $817.3K | 0.00% | +1,031+3.8% | Added |
| Franklin Resources Inc | 25,412 | $731.7K | 0.00% | −222,055−89.7% | Reduced |
| Squarepoint Ops LLC | 24,760 | $712.6K | 0.00% | +24,760 | New |
| SIG North Trading, ULC | 22,575 | $649.7K | 0.12% | −3,700−14.1% | Reduced |
| ExodusPoint Capital Management, LP | 22,100 | $636.0K | 0.01% | +50+0.2% | Added |
| Vanguard Investments Australia, Ltd. | 21,874 | $630.5K | 0.00% | +2,559+13.2% | Added |
| Wells Fargo & Company | 19,748 | $568.3K | 0.00% | +18,241+1,210.4% | Added |
| Barclays PLC | 16,814 | $483.9K | 0.00% | +13,836+464.6% | Added |
| Alliancebernstein L.P. | 16,380 | $461.9K | 0.00% | +7,420+82.8% | Added |
| Pictet Asset Management Holding SA | 15,987 | $460.7K | 0.00% | −436−2.7% | Reduced |
| Purpose Unlimited Inc. | 15,754 | $454.1K | 0.02% | −12,813−44.9% | Reduced |