ATS CORPORATION COM

ATS CORPORATION COM is a security (CUSIP 00217Y104) tracked across SEC portfolio filings. 129 institutional managers reported $2.3B on Form 13F as of 2026-06-30; 7 registered fund positions totaling $46.3M via N-PORT as of 2026-05-31.

Summary

Top institutional holders (Form 13F)

Showing 15 of 129 managers by value.

ManagerLocationValueShares
MASON CAPITAL MANAGEMENT LLCNew York, NY$462.6M16,404,170
Royal Bank of CanadaTORONTO, A6$218.9M7,761,838
EdgePoint Investment Group Inc.TORONTO, A6$202.1M7,168,112
TURTLE CREEK ASSET MANAGEMENT INC.TORONTO, A6$138.1M4,896,669
VANGUARD GROUP INCValley Forge, PA$93.6M3,397,166
BANK OF MONTREAL /CAN/TORONTO, A6$87.8M3,115,360
FAIRFAX FINANCIAL HOLDINGS LTD/ CANToronto, A6$69.4M2,486,400
JANUS HENDERSON GROUP PLCLONDON, X0$64.5M2,297,214
FMR LLCBOSTON, MA$64.2M2,277,472
Connor, Clark & Lunn Investment Management Ltd.VANCOUVER, A1$63.8M2,264,757
ACK Asset Management LLCGREENWICH, CT$52.1M1,846,196
FIL LtdHAMILTON, D0$50.1M1,778,181
Burgundy Asset Management Ltd.Toronto, A6$50.0M1,807,557
TD Waterhouse Canada Inc.TORONTO, A6$47.4M1,683,683
Hill City Capital, LPBOSTON, MA$46.5M1,649,857

Top fund holders (N-PORT)

FundRegistrantValue% of fund
Janus Henderson Venture FundJANUS INVESTMENT FUND$22.8M74.47%
Meridian Contrarian FundMeridian Fund Inc$9.8M166.75%
abrdn U.S. Small Cap Equity Fundabrdn Funds$7.6M202.77%
Embark Small Cap Equity FundHarbor Funds II$3.4M59.66%
ROYCE SMALL-CAP TRUST, INC.ROYCE SMALL-CAP TRUST, INC.$1.8M8.02%
Tarkio FundClark Fork Trust$907K35.00%
Blackstone Alternative Multi-Strategy FundBlackstone Alternative Investment Funds$-79K-0.22%

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