ATS Corp

ATS

Exchange: NYSE
Industry: General Industrial Machinery & Equipment, NEC
SEC CIK: 0001394832

SEC filings (opens in a new tab)

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.

Q2 2026 vs. Q1 2026

How the institutions holding ATS Corp changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of ATS: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	131	1	141	+11
Shares	85.1M	2.30M	81.6M	−1.18M (−1.4%)
Value	$2.39B	$64.5M	$2.37B	+$43.5M (+1.9%)

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (25)

Institutions that held ATS Corp at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to ATS in Q2 2026
Institution	Shares	Value	% of portfolio
Jupiter Topco LLC	2,322,073	$66.9M	0.03%
Norges Bank	1,084,181	$31.2M	0.00%
Langdon Equity Partners	600,000	$17.3M	9.66%
Roubaix Capital, LLC	246,909	$7.11M	2.55%
NewGen Asset Management Ltd	150,000	$4.32M	2.37%
Polar Asset Management Partners Inc.	105,203	$3.03M	0.06%
K.J. Harrison & Partners Inc	100,000	$2.88M	0.41%
Hallstatt Advisors L.P.	83,020	$2.39M	1.68%
CenterBook Partners LP	65,180	$1.88M	0.09%
Boothbay Fund Management, LLC	59,867	$1.72M	0.03%
XTX Topco Ltd	35,013	$1.01M	0.01%
Susquehanna International Group, LLP	34,791	$1.00M	0.00%
American Century Companies Inc	32,500	$936.8K	0.00%
Verition Fund Management LLC	29,513	$849.4K	0.01%
Squarepoint Ops LLC	24,760	$712.6K	0.00%
HRT Financial LP	10,824	$311.0K	0.00%
Quadrature Capital Ltd	8,100	$233.4K	0.00%
Fieldview Capital Management, LLC	7,408	$213.5K	0.06%
Simplex Trading, LLC	846	$24.3K	0.00%
Guardian Partners Inc.	760	$21.9K	0.00%
Clearstead Advisors, LLC	539	$15.5K	0.00%
NBH Bank	113	$3.25K	0.00%
Action Point Financial Planning, LLC	80	$2.27K	0.00%
Rockefeller Capital Management L.P.	48	$1.38K	0.00%
Silver Grove Financial Group, Inc.	36	$1.04K	0.00%

Sold out (14)

Institutions that held ATS Corp at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of ATS in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Vinva Investment Management Ltd	2,088,947	$36.5M
Principal Financial Group Inc	620,840	$17.4M
Royce & Associates LP	179,500	$5.06M
D. E. Shaw & Co., Inc.	30,200	$851.0K
Numerai GP LLC	27,538	$776.6K
Balyasny Asset Management LLC	14,124	$398.3K
Marshall Wace, LLP	9,920	$279.7K
Brevan Howard Capital Management LP	8,424	$237.6K
Brinker Capital Investments, LLC	7,994	$225.4K
GWM Advisors LLC	214	$6.03K
Wellington-Altus USA Inc.	125	$3.60K
Bank of Jackson Hole Trust	113	$3.19K
Root Financial Partners, LLC	40	$1.13K
Jones Financial Companies LLLP	36	$1.01K

Not filed for Q2 2026 yet (1)

Institutions that held ATS Corp at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATS in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Janus Henderson Group PLC	2,297,214	$64.5M