Who Owns ATS Corporation (ATS)?Hedge Fund & Institutional Holders

$29.95+1.10 (+3.81%)IndustrialsNYSE

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$InfinityT

% of Float Held

Infinity%

QoQ Change in Holders

+6 / -6

Price History

$21.07$24.01$26.95$29.89$32.83Oct 24Jun 25Mar 26

ATS — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
FMR LLCIncreased+742K+$57.0B
BANK OF MONTREAL /CAN/Increased+1.9M+$52.1B
Marathon Asset Management LtdNew Position+1.1M+$30.0B
Alberta Investment Management CorpIncreased+918K+$24.9B
PRINCIPAL FINANCIAL GROUP INCNew Position+878K+$24.2B
EdgePoint Investment Group Inc.Increased+507K+$22.9B
ROYAL BANK OF CANADAIncreased+443K+$20.3B
MASSACHUSETTS FINANCIAL SERVICES CO /MA/New Position+559K+$15.4B
Connor, Clark & Lunn Investment Management Ltd.Increased+432K+$14.3B
PUBLIC SECTOR PENSION INVESTMENT BOARDIncreased+226K+$5.4B
Polar Asset Management Partners Inc.New Position+180K+$4.0B
Invesco Ltd.Increased+75K+$3.7B
CIBC Asset Management IncNew Position+132K+$3.0B
1832 Asset Management L.P.Increased+80K+$2.6B
SEI INVESTMENTS CONew Position+99K+$2.0B

ATS — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
Burgundy Asset Management Ltd.Closed Position-1.8M-$50.0B
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.Decreased-647-$29.7B
Turtle Creek Asset Management Inc.Decreased-1.3M-$27.3B
MACKENZIE FINANCIAL CORPDecreased-380K-$8.8B
GOLDMAN SACHS GROUP INCDecreased-223K-$7.3B
Roubaix Capital, LLCClosed Position-224K-$5.9B
D. E. Shaw & Co., Inc.Decreased-110K-$3.7B
Bastion Asset Management Inc.Closed Position-73K-$1.9B
Fiera Capital CorpDecreased-22K-$1.4B
Blackstone Inc.Closed Position-50K-$1.3B
Russell Investments Group, Ltd.Decreased-25K-$865.8M
Lombard Odier Asset Management (Switzerland) SAClosed Position-22K-$771.1M
Rockefeller Capital Management L.P.Decreased-19K-$752.4M
AmundiClosed Position-27K-$727.3M
CIBC WORLD MARKET INC.Decreased-15K-$665.2M

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1EdgePoint Investment Group Inc.6,888,785$189.8B1558.50%Share
2ROYAL BANK OF CANADA6,409,707$176.0B28.63%Share
3Turtle Creek Asset Management Inc.5,642,052$155.4B6.84%Share
4FAIRFAX FINANCIAL HOLDINGS LTD/ CAN2,486,400$68.3B3.28%Share
5Connor, Clark & Lunn Investment Management Ltd.2,485,638$68.0B178.34%Share
6FMR LLC2,087,535$57.0B2.91%Share
7BANK OF MONTREAL /CAN/2,030,641$55.0B19.05%Share
8Hill City Capital, LP1,649,857$45.4B1.72%Share
9Alberta Investment Management Corp1,340,265$36.0B115.22%Share
10Scheer, Rowlett & Associates Investment Management Ltd.1,226,450$33.8B2.32%Share
11ROYAL BANK OF CANADA1,127,532$31.0B5.04%Share
12MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.1,141,835$31.0B46.37%Share
13Clearbridge Investments, LLC1,111,485$30.0B24.02%Share
14Marathon Asset Management Ltd1,097,711$30.0B1.15%Share
15Invesco Ltd.931,200$25.6B3.93%Share
16PRINCIPAL FINANCIAL GROUP INC878,240$24.2B12.37%Share
17JANUS HENDERSON GROUP PLC840,932$23.0B10.30%Share
181832 Asset Management L.P.818,559$22.0B16.75%Share
19MACKENZIE FINANCIAL CORP758,980$21.0B24.87%Share
20TD ASSET MANAGEMENT INC739,994$20.0B16.09%Share
21HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND753,492$20.0B33.45%Share
22BANK OF MONTREAL /CAN/695,507$19.0B6.58%Share
23MASSACHUSETTS FINANCIAL SERVICES CO /MA/558,675$15.4B4.96%Share
24Legal & General Group Plc528,298$14.0B3.10%Share
25BANK OF AMERICA CORP /DE/490,998$13.0B0.95%Share
26BANK OF AMERICA CORP /DE/466,860$12.0B0.87%Share
27TD ASSET MANAGEMENT INC453,214$12.0B9.65%Share
28CIBC WORLD MARKET INC.354,069$9.0B14.51%Share
29Invesco Ltd.320,201$8.8B1.35%Share
30BANK OF MONTREAL /CAN/296,203$8.0B2.77%Share
31MONTRUSCO BOLTON INVESTMENTS INC.254,681$7.0B87.53%Share
32PUBLIC SECTOR PENSION INVESTMENT BOARD287,829$7.0B23.50%Share
33UBS Group AG219,874$6.1B0.98%Share
34GOLDMAN SACHS GROUP INC253,511$6.0B0.74%Share
35CHARLES SCHWAB INVESTMENT MANAGEMENT INC236,332$6.0B0.93%Share
36LOUISBOURG INVESTMENTS INC.207,130$5.7B1.14%Share
37Granite Investment Partners, LLC203,876$5.6B0.33%Share
38SCOTIA CAPITAL INC.195,019$5.0B20.13%Share
39FIRST TRUST ADVISORS LP184,128$5.0B3.63%Share
40Focus Partners Wealth181,975$5.0B5.70%Share
41ROYCE & ASSOCIATES LP164,500$4.5B45.95%Share
42Swiss National Bank164,400$4.0B2.38%Share
43Polar Asset Management Partners Inc.180,000$4.0B50.75%Share
44CIBC Asset Management Inc131,500$3.0B7.24%Share
45BANK OF AMERICA CORP /DE/113,974$3.0B0.22%Share
46SEI INVESTMENTS CO98,742$2.0B1.97%Share
47DIMENSIONAL FUND ADVISORS LP85,337$2.0B0.42%Share
48MILLENNIUM MANAGEMENT LLC75,879$2.0B0.84%Share
49CITADEL ADVISORS LLC102,942$2.0B0.30%Share
50MANUFACTURERS LIFE INSURANCE COMPANY, THE76,426$2.0B1.64%Share

ATS Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025118$1.4T+19
Q3 202599$1.6T-1
Q2 2025100$1.9T-22
Q1 2025122$1.7T+0
Q4 2024122$21.5T+9
Q3 2024113$33.7T-5
Q2 2024118$287.6T+1
Q1 2024117$318.4T—

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As of Q4 2025, 50 institutional investors hold ATS (ATS Corporation). The largest holder is EdgePoint Investment Group Inc. with $189.8B in shares. This quarter, 6 institutions opened new positions and 6 closed their positions.

Frequently Asked Questions

How many hedge funds own ATS?

As of Q4 2025, 50 institutional investors report holding ATS (ATS Corporation) in their 13F filings.

Who is the largest institutional holder of ATS?

The largest institutional holder of ATS is EdgePoint Investment Group Inc. with $189.8B in shares.

Is institutional ownership of ATS increasing or decreasing?

This quarter, 6 institutions opened new positions in ATS and 6 closed their positions.