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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, Q4 2025

Institutional positions in ATS Corp as of Dec 31, 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
122
+11 vs. Q3 2025
Shares held
83.2M
+2.23M (+2.8%) vs. Q3 2025
Total value
$2.30B
+$173.0M (+8.1%) vs. Q3 2025
New holders
24
41 more added
Sold out
13
42 more reduced

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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.

Institutional holdersQ4 2025: 122 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 2 institutionsQ1 2023: 3 institutionsQ2 2023: 131 institutionsQ3 2023: 127 institutionsQ4 2023: 132 institutionsQ1 2024: 136 institutionsQ2 2024: 132 institutionsQ3 2024: 130 institutionsQ4 2024: 129 institutionsQ1 2025: 122 institutionsQ2 2025: 131 institutionsQ3 2025: 115 institutionsQ4 2025: 122 institutionsQ1 2026: 131 institutionsQ2 2026: 141 institutions
Value heldQ4 2025: $2.30B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $33.4MQ1 2023: $80.6MQ2 2023: $3.53BQ3 2023: $3.21BQ4 2023: $3.27BQ1 2024: $2.77BQ2 2024: $2.64BQ3 2024: $2.36BQ4 2024: $2.62BQ1 2025: $2.18BQ2 2025: $2.77BQ3 2025: $2.20BQ4 2025: $2.30BQ1 2026: $2.39BQ2 2026: $2.37B
Institutions holding ATS and their total value by quarter
QuarterHoldersValue
Q2 2026141$2.37B
Q1 2026131$2.39B
Q4 2025122$2.30B
Q3 2025115$2.20B
Q2 2025131$2.77B
Q1 2025122$2.18B
Q4 2024129$2.62B
Q3 2024130$2.36B
Q2 2024132$2.64B
Q1 2024136$2.77B
Q4 2023132$3.27B
Q3 2023127$3.21B
Q2 2023131$3.53B
Q1 20233$80.6M
Q4 20222$33.4M
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding ATS Corp; share changes are against Q3 2025.

Institutions holding ATS in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Leonteq Securities AG4$1510.00%00.0%Unchanged
Bell Investment Advisors, Inc20$5510.00%00.0%Unchanged
Advisor Group Holdings, Inc.30$8260.00%−591−95.2%Reduced
Jones Financial Companies LLLP36$9910.00%−13−26.5%Reduced
Root Financial Partners, LLC40$1.10K0.00%00.0%Unchanged
BlackRock, Inc.58$1.60K0.00%+58New
EverSource Wealth Advisors, LLC69$1.90K0.00%+49+245.0%Added
WealthCollab, LLC89$2.45K0.00%00.0%Unchanged
Larson Financial Group LLC121$3.33K0.00%+108+830.8%Added
Bank of Jackson Hole Trust137$3.77K0.00%+137New
Hantz Financial Services, Inc.173$5.00K0.00%00.0%Unchanged
Banque Cantonale Vaudoise261$7.00K0.00%−99−27.5%Reduced
Farther Finance Advisors, LLC263$7.24K0.00%+20+8.2%Added
Pacer Advisors, Inc.338$9.32K0.00%+205+154.1%Added
JPMorgan Chase & Co553$15.2K0.00%−161−22.5%Reduced
Hillsdale Investment Management Inc.600$16.6K0.00%+600New
Wells Fargo & Company711$19.6K0.00%+79+12.5%Added
Ronald Blue Trust, Inc.733$20.2K0.00%+733New
Smartleaf Asset Management LLC1,052$29.2K0.00%+1,052New
Barclays PLC5,264$145.0K0.00%+756+16.8%Added
Envestnet Asset Management Inc7,634$210.4K0.00%−10,160−57.1%Reduced
Russell Investments Group, Ltd.8,529$235.3K0.00%−24,556−74.2%Reduced
Campbell & CO Investment Adviser LLC8,805$242.5K0.01%+8,805New
Alliancebernstein L.P.8,960$246.8K0.00%−860−8.8%Reduced
Verition Fund Management LLC9,192$253.1K0.00%+9,192New
Rockefeller Capital Management L.P.9,790$270.0K0.00%−18,941−65.9%Reduced
Investment Management Corp of Ontario10,116$278.6K0.00%+10,116New
Deutsche Bank AG10,261$282.6K0.00%−627−5.8%Reduced
Northwest & Ethical Investments L.P.10,553$290.7K0.01%+1,940+22.5%Added
XTX Topco Ltd10,640$293.0K0.01%−2,981−21.9%Reduced
SkyView Investment Advisors, LLC10,966$302.0K0.04%+10,966New
Savant Capital, LLC11,372$313.2K0.00%+11,372New
TRUE Private Wealth Advisors12,080$332.7K0.03%00.0%Unchanged
Mariner, LLC12,167$335.1K0.00%+3,143+34.8%Added
Third View Private Wealth, LLC12,264$337.8K0.05%+12,264New
Stifel Financial Corp12,593$346.8K0.00%+467+3.9%Added
Van Eck Associates Corp13,571$374.0K0.00%+7,559+125.7%Added
Pictet Asset Management Holding SA16,006$441.5K0.00%+468+3.0%Added
Numerai GP LLC16,305$449.0K0.05%+16,305New
PenderFund Capital Management Ltd.20,000$550.9K0.09%00.0%Unchanged
Standard Life Aberdeen plc20,007$551.0K0.00%+1,412+7.6%Added
Morgan Stanley21,491$591.9K0.00%−48,148−69.1%Reduced
Jane Street Group, LLC22,063$607.9K0.00%+22,063New
Candelo Capital Management LP24,700$680.2K0.62%+24,700New
Citigroup Inc25,149$693.7K0.00%+8,707+53.0%Added
Franklin Resources Inc25,386$699.3K0.00%+9,556+60.4%Added
Public Employees Retirement System of Ohio27,215$750.7K0.00%+100.0%Added
Purpose Unlimited Inc.28,802$793.4K0.04%+28,802New
SIG North Trading, ULC29,342$808.1K0.14%+29,342New
Main Management ETF Advisors, LLC29,754$819.0K0.03%+304+1.0%Added
Bank of Nova Scotia Trust Co30,514$840.4K0.07%+5,439+21.7%Added
British Columbia Investment Management Corp43,753$1.21M0.01%−4,053−8.5%Reduced
Guardian Capital LP47,063$1.30M0.04%+47,063New
Aviso Financial Inc.51,725$1.42M0.05%−518−1.0%Reduced
FIL Ltd53,569$1.47M0.00%+53,569New
Lazard Asset Management LLC58,426$1.61M0.00%+58,426New
Geode Capital Management, LLC59,255$1.67M0.00%+9,023+18.0%Added
Caldwell Investment Management Ltd.60,800$1.69M1.04%00.0%Unchanged
Nuveen, LLC62,584$1.73M0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)64,639$1.78M0.00%−26,972−29.4%Reduced
Fiera Capital Corp71,007$1.96M0.01%−22,152−23.8%Reduced
AYAL Capital Advisors Ltd72,200$1.99M1.09%+72,200New
Millennium Management LLC75,879$2.09M0.00%+32,058+73.2%Added
Manufacturers Life Insurance Company, The76,426$2.11M0.00%−340.0%Reduced
Canoe Financial LP80,600$2.22M0.03%+1,723+2.2%Added
Toronto Dominion Bank81,910$2.26M0.00%+3,955+5.1%Added
SEI Investments Co98,742$2.72M0.00%+98,742New
D. E. Shaw & Co., Inc.108,100$2.98M0.00%−109,800−50.4%Reduced
Dimensional Fund Advisors LP110,342$3.04M0.00%+21,119+23.7%Added
Federation des caisses Desjardins du Quebec116,404$3.20M0.01%−78,830−40.4%Reduced
CIBC Asset Management Inc131,500$3.62M0.01%−3,354−2.5%Reduced
Citadel Advisors LLC148,840$4.10M0.00%+79,020+113.2%Added
Delaney Capital Management Ltd.153,037$4.22M0.70%+153,037New
Royce & Associates LP164,500$4.53M0.05%+30,000+22.3%Added
Swiss National Bank164,400$4.54M0.00%+4,300+2.7%Added
Polar Asset Management Partners Inc.180,000$4.96M0.10%+180,000New
Colony Group, LLC181,975$5.01M0.01%−130.0%Reduced
First Trust Advisors LP184,128$5.07M0.00%+35,416+23.8%Added
Scotia Capital Inc.195,019$5.35M0.02%−13,999−6.7%Reduced
Granite Investment Partners, LLC203,876$5.61M0.33%−1,971−1.0%Reduced
Louisbourg Investments Inc.207,130$5.71M1.14%−8,165−3.8%Reduced
Dixon Mitchell Investment Counsel Inc.211,025$5.82M0.19%−7,500−3.4%Reduced
UBS Group AG228,774$6.30M0.00%−2,821−1.2%Reduced
Charles Schwab Investment Management Inc236,332$6.52M0.00%+5,826+2.5%Added
Montrusco Bolton Investments Inc.254,681$7.02M0.09%−29,100−10.3%Reduced
Van Berkom & Associates Inc.269,136$7.42M0.21%−858−0.3%Reduced
Goldman Sachs Group Inc285,377$7.86M0.00%−222,508−43.8%Reduced
Front Street Capital Management, Inc.286,994$7.90M1.12%−2,778−1.0%Reduced
Public Sector Pension Investment Board287,829$7.93M0.03%+225,923+364.9%Added
CIBC World Markets Inc.354,069$9.75M0.02%−15,444−4.2%Reduced
Agf Management Ltd400,140$11.0M0.05%−89,816−18.3%Reduced
National Bank of Canada418,332$11.5M0.01%−1,693−0.4%Reduced
Legal & General Group Plc542,023$14.9M0.00%+47,414+9.6%Added
Massachusetts Financial Services Co558,675$15.4M0.00%−10,999−1.9%Reduced
Healthcare of Ontario Pension Plan Trust Fund753,492$20.8M0.04%00.0%Unchanged
Mackenzie Financial Corp758,980$21.1M0.02%−379,579−33.3%Reduced
1832 Asset Management L.P.818,559$22.5M0.03%+79,828+10.8%Added
Janus Henderson Group PLC861,839$23.8M0.01%−36,504−4.1%Reduced
Principal Financial Group Inc878,240$24.2M0.01%+4,100+0.5%Added
TD Waterhouse Canada Inc.966,349$26.5M0.16%−463,883−32.4%Reduced