Millennium Management’s ATS Corp ATS Stock Holding History

Millennium 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
2026 Q1	–	Sell	-75,879	Closed	-$2.09M	–	5697
2025 Q4	$2.09M	Buy	75,879 +32,058	+73%	+$856K	﹤0.01%	3903
2025 Q3	$1.15M	Buy	+43,821	New	+$1.26M	﹤0.01%	4516
2024 Q4	–	Sell	-35,633	Closed	-$1.03M	–	5942
2024 Q3	$1.03M	Sell	35,633 -59,678	-63%	-$1.73M	﹤0.01%	4248
2024 Q2	$3.08M	Sell	95,311 -106,952	-53%	-$3.45M	﹤0.01%	3158
2024 Q1	$6.81M	Buy	202,263 +142,473	+238%	+$5.65M	﹤0.01%	2547
2023 Q4	$2.58M	Sell	59,790 -24,791	-29%	-$962K	﹤0.01%	3397
2023 Q3	$3.61M	Buy	84,581 +30,634	+57%	+$1.35M	﹤0.01%	3021
2023 Q2	$2.49M	Buy	+53,947	New	+$2.42M	﹤0.01%	3288

Other funds holding ATS

MCM

Mason Capital Management New York $607M AUM 1.77% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $672B AUM 33.48% 1-Year Est. Return

EIG

EdgePoint Investment Group Toronto, Ontario, Canada $13.2B AUM 32.43% 1-Year Est. Return

BGC

Beutel, Goodman & Co Toronto, Ontario, Canada $13.6B AUM 17.82% 1-Year Est. Return

TCAM

Turtle Creek Asset Management Toronto, Ontario, Canada $2.56B AUM 1.05% 1-Year Est. Return

Bank of Montreal Toronto, Ontario, Canada $304B AUM 35.64% 1-Year Est. Return

FFH

Fairfax Financial Holdings Toronto, Ontario, Canada $2.64B AUM 24.46% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Millennium Management's ATS Position: Q1 2026 in Review

Millennium Management sold out of ATS Corp (ATS) in Q1 2026, closing a stake of 75,879 shares — an estimated $2.09M sold.

Millennium Management first reported a position in ATS in Q2 2023 and held it in 8 quarters. The position peaked at $6.81M in Q1 2024. 131 funds tracked by Wall St. Rank hold ATS as of Q1 2026.

Millennium Management reported no remaining ATS Corp position as of Q1 2026 after selling out during the quarter.
Millennium Management sold 75,879 ATS Corp shares in Q1 2026, an estimated $2.09M.
Millennium Management first reported a position in ATS Corp in Q2 2023 and held it in 8 quarters.
Millennium Management's ATS Corp position peaked at $6.81M in Q1 2024.
131 funds tracked by Wall St. Rank held ATS Corp as of Q1 2026.

Based on Millennium Management's 13F filing for Q1 2026, filed 15 May 2026.