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ATS Corp
ATS

Overview Fund Activity

130 hedge funds and large institutions have $2.75B invested in ATS Corp in 2025 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 48 increasing their positions, 51 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
130
Holders Change
+9
Holders Change %
+7.44%
% of All Funds
1.74%
Holding in Top 10
6
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+20%
% of All Funds
0.08%
New
22
Increased
48
Reduced
51
Closed
13
Calls
$2.89M
Puts
$9.82M
Net Calls
-$6.93M
Net Calls Change
-$12.5M

Top Buyers

1
EIG
EdgePoint Investment Group
Ontario, Canada
+$45.2M
2
MAMU
Marathon Asset Management (UK)
United Kingdom
+$39.3M
3
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
+$19M
4
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
+$12.5M
5
MBI
Montrusco Bolton Investments
Quebec, Canada
+$10.1M

Top Sellers

1
Fidelity International
Fidelity International
Bermuda
-$24.9M
2
AIMCA
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
-$24.1M
3
TCAM
Turtle Creek Asset Management
Ontario, Canada
-$22.7M
4
Fiera Capital (Canada)
Fiera Capital (Canada)
Quebec, Canada
-$18.8M
5
CF
Canoe Financial
Alberta, Canada
-$17M
Name Holding Trade Value Shares
Change 		Shares
Change %
MCM
1
Mason Capital Management
New York
$496M – – –
TCAM
2
Turtle Creek Asset Management
Ontario, Canada
$242M -$22.7M -710,990 -9%
Royal Bank of Canada
3
Royal Bank of Canada
Ontario, Canada
$226M +$19M +594,453 +9%
BGC
4
Beutel, Goodman & Co
Ontario, Canada
$218M -$6.93M -217,836 -3%
EIG
5
EdgePoint Investment Group
Ontario, Canada
$205M +$45.2M +1,416,009 +28%
Vanguard Group
6
Vanguard Group
Pennsylvania
$104M +$1.64M +51,529 +2%
FFH
7
Fairfax Financial Holdings
Ontario, Canada
$79.1M – – –
Connor, Clark & Lunn Investment Management (CC&L)
8
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$75.6M +$12.5M +392,874 +20%
ClearBridge Investments
9
ClearBridge Investments
New York
$58.9M +$7.82M +245,437 +15%
AAM
10
ACK Asset Management
Connecticut
$58.9M -$5.32M -167,000 -8%
BAM
11
Burgundy Asset Management
Ontario, Canada
$57.7M +$1.38M +43,365 +2%
TWC
12
TD Waterhouse Canada
Ontario, Canada
$46.4M -$7.05M -220,776 -13%
Mackenzie Financial
13
Mackenzie Financial
Ontario, Canada
$45M +$6.72M +210,570 +18%
Fidelity Investments
14
Fidelity Investments
Massachusetts
$44.8M -$2.6M -81,631 -5%
TD Asset Management
15
TD Asset Management
Ontario, Canada
$40.7M +$3.88M +122,017 +11%
MAMU
16
Marathon Asset Management (UK)
United Kingdom
$39.3M +$39.3M +1,234,961 New
HCC
17
Hill City Capital
Massachusetts
$39M -$2.39M -75,000 -6%
Capital World Investors
18
Capital World Investors
California
$38.1M – – –
Invesco
19
Invesco
Georgia
$37.9M -$6.82M -213,858 -15%
Mirae Asset Global ETFs Holdings
20
Mirae Asset Global ETFs Holdings
Hong Kong
$35.4M +$37.4K +1,174 +0.1%
Bank of Montreal
21
Bank of Montreal
Ontario, Canada
$35.1M +$1.69M +52,857 +5%
Norges Bank
22
Norges Bank
Norway
$32.8M +$32.8M +1,027,456 New
Janus Henderson Group
23
Janus Henderson Group
United Kingdom
$29.4M – – –
Bank of America
24
Bank of America
North Carolina
$27.5M -$6.19M -194,131 -18%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
25
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$26.9M +$6.39M +200,300 +31%
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