D.E. Shaw & Co
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D.E. Shaw & Co’s ATS Corp ATS Stock Holding History

D.E. Shaw & Co’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
Q2 		– Sell
-100,000
Closed -$2.49M – 4343
2025
Q1 		$2.49M Sell
100,000
-1,000
-1% -$27.9K ﹤0.01% 2445
2024
Q4 		$3.08M Sell
101,000
-23,700
-19% -$720K ﹤0.01% 2374
2024
Q3 		$3.62M Buy
124,700
+107,400
+621% +$3.1M ﹤0.01% 2213
2024
Q2 		$560K Buy
17,300
+3,700
+27% +$119K ﹤0.01% 3557
2024
Q1 		$458K Sell
13,600
-10,400
-43% -$413K ﹤0.01% 3529
2023
Q4 		$1.03M Buy
+24,000
New +$931K ﹤0.01% 3115

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
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
TCAM
Turtle Creek Asset Management Toronto, Ontario, Canada $2.67B AUM 0.64% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $269B AUM 31.4% 1-Year Est. Return
FFH
Fairfax Financial Holdings Toronto, Ontario, Canada $1.94B AUM 27.76% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

D.E. Shaw & Co's ATS Position: Q1 2026 in Review

D.E. Shaw & Co reduced its ATS Corp (ATS) stake by 72% in Q1 2026, selling an estimated $2.34M and leaving 30,200 shares worth $851K. The position accounts for ﹤0.01% of the portfolio, ranked #3547.

D.E. Shaw & Co first reported a position in ATS in Q2 2023 and has held it in 12 quarters since. The position peaked at $9.62M in Q1 2024. 130 funds tracked by Wall St. Rank hold ATS as of Q1 2026.

  • D.E. Shaw & Co held 30,200 shares of ATS Corp worth $851K as of Q1 2026.
  • D.E. Shaw & Co sold 77,900 ATS Corp shares in Q1 2026, an estimated $2.34M.
  • ATS Corp made up ﹤0.01% of D.E. Shaw & Co's portfolio in Q1 2026, its #3547 holding.
  • D.E. Shaw & Co first reported a position in ATS Corp in Q2 2023 and has held it in 12 quarters since.
  • D.E. Shaw & Co's ATS Corp position peaked at $9.62M in Q1 2024.
  • 130 funds tracked by Wall St. Rank held ATS Corp as of Q1 2026.

Based on D.E. Shaw & Co's 13F filing for Q1 2026, filed 15 May 2026.