ATS Corp /ATS - ATS

Sector: Industrials · Industry: General Industrial Machinery & Equipment, NEC
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Company profile

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Quarter snapshot

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Q1 2026 · Q4 2025
Value (USD)
Total reported value ($000)
$2.51B
QoQ value delta ($000)
+$214.6M (+9.35%)
Implied price effect (QoQ)
+1.52%
Shares
Total shares
89,442,829
QoQ shares delta
+6,401,829 (+7.71%)
Total shares held by funds (by quarter)

Market chart (ATS)

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Top holders (Q1 2026)

Top 25 only Full list
Partial Q1 2026 data: 128 holders have filed so far. Prior holders are carried forward until their next 13F confirms a change.
Manager Value ($000) Shares % of 13F
MASON CAPITAL MANAGEMENT LLC 462,597 16,404,170 75.48%
ROYAL BANK OF CANADA 218,884 7,761,838 0.04%
EdgePoint Investment Group Inc. 202,081 7,168,112 1.62%
Beutel, Goodman & Co Ltd. 153,259 5,454,749 1.04%
Turtle Creek Asset Management Inc. 138,086 4,896,669 5.17%
VANGUARD GROUP INC 93,581 3,397,166 0.0%
BANK OF MONTREAL /CAN/ 87,827 3,115,360 0.03%
FAIRFAX FINANCIAL HOLDINGS LTD/ CAN 69,352 2,486,400 3.57%
VANGUARD CAPITAL MANAGEMENT LLC 66,708 2,366,730 0.0%
JANUS HENDERSON GROUP PLC 64,543 2,297,214 0.03%
FMR LLC 64,193 2,277,472 0.0%
Connor, Clark & Lunn Investment Management Ltd. 63,847 2,264,757 0.15%
ACK Asset Management LLC 52,062 1,846,196 6.5%
FIL Ltd 50,088 1,778,181 0.04%
TD Waterhouse Canada Inc. 46,872 1,634,449 0.14%
Hill City Capital, LP 46,525 1,649,857 1.66%
TD ASSET MANAGEMENT INC 39,966 1,422,459 0.03%
Vinva Investment Management Ltd 36,514 2,088,947 0.45%
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. 33,857 863,486 0.3%
Scheer, Rowlett & Associates Investment Management Ltd. 33,320 1,181,937 2.4%
Clearbridge Investments, LLC 30,774 1,091,291 0.03%
Marathon Asset Management Ltd 30,733 1,093,911 1.18%
NORGES BANK 29,726 1,079,090 0.0%
BANK OF AMERICA CORP /DE/ 26,673 945,875 0.0%
Alberta Investment Management Corp 26,505 940,191 0.16%