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Onex Canada Asset Management’s ATS Corp ATS Stock Holding History

Onex Canada Asset Management’s Portfolio ATS Stock Details ATS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-19,053
Closed -$608K – 73
2025
Q2 		$608K Sell
19,053
-24,246
-56% -$664K 0.07% 112
2025
Q1 		$1.08M Sell
43,299
-14,949
-26% -$417K 0.14% 108
2024
Q4 		$1.78M Sell
58,248
-6,372
-10% -$193K 0.21% 90
2024
Q3 		$1.87M Buy
+64,620
New +$1.87M 0.22% 98

Other funds holding ATS

MCM
Mason Capital Management New York $613M AUM 21.43% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return
TCAM
Turtle Creek Asset Management Toronto, Ontario, Canada $2.67B AUM 0.64% 1-Year Est. Return
EIG
EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return
BGC
Beutel, Goodman & Co Toronto, Ontario, Canada $14.8B AUM 15.12% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
FFH
Fairfax Financial Holdings Toronto, Ontario, Canada $1.94B AUM 27.76% 1-Year Est. Return
Connor, Clark & Lunn Investment Management (CC&L)
Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $43.4B AUM 51.29% 1-Year Est. Return
BAM
Burgundy Asset Management Toronto, Ontario, Canada $10.6B AUM 13.39% 1-Year Est. Return
AAM
ACK Asset Management Greenwich, Connecticut $801M AUM 60.42% 1-Year Est. Return

Onex Canada Asset Management's ATS Position: Q3 2025 in Review

Onex Canada Asset Management sold out of ATS Corp (ATS) in Q3 2025, closing a stake of 19,053 shares — an estimated $608K sold.

Onex Canada Asset Management first reported a position in ATS in Q3 2024 and held it in 4 quarters. The position peaked at $1.87M in Q3 2024. 116 funds tracked by Wall St. Rank hold ATS as of Q3 2025.

  • Onex Canada Asset Management reported no remaining ATS Corp position as of Q3 2025 after selling out during the quarter.
  • Onex Canada Asset Management sold 19,053 ATS Corp shares in Q3 2025, an estimated $608K.
  • Onex Canada Asset Management first reported a position in ATS Corp in Q3 2024 and held it in 4 quarters.
  • Onex Canada Asset Management's ATS Corp position peaked at $1.87M in Q3 2024.
  • 116 funds tracked by Wall St. Rank held ATS Corp as of Q3 2025.

Based on Onex Canada Asset Management's 13F filing for Q3 2025, filed 14 Nov 2025.