Jane Street’s ATS Corp ATS Stock Holding History

Jane Street’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 Q2	$5.75M	Buy	199,635 +116,994	+142%	+$3.6M	﹤0.01%	3507
2026 Q1	$2.33M	Buy	82,641 +60,578	+275%	+$1.82M	﹤0.01%	4797
2025 Q4	$608K	Buy	+22,063	New	+$589K	﹤0.01%	7264
2025 Q3	–	Sell	-32,225	Closed	-$1.03M	–	10740
2025 Q2	$1.03M	Sell	32,225 -9,860	-23%	-$270K	﹤0.01%	5563
2025 Q1	$1.05M	Buy	42,085 +9,636	+30%	+$269K	﹤0.01%	5483
2024 Q4	$989K	Sell	32,449 -8,521	-21%	-$259K	﹤0.01%	5414
2024 Q3	$1.19M	Buy	40,970 +10,314	+34%	+$298K	﹤0.01%	5544
2024 Q2	$992K	Buy	30,656 +11,077	+57%	+$357K	﹤0.01%	5789
2024 Q1	$659K	Sell	19,579 -7,825	-29%	-$311K	﹤0.01%	6172
2023 Q4	$1.18M	Buy	27,404 +22,140	+421%	+$859K	﹤0.01%	5267
2023 Q3	$225K	Sell	5,264 -12,151	-70%	-$537K	﹤0.01%	7469
2023 Q2	$801K	Buy	+17,415	New	+$783K	﹤0.01%	5577

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 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

Jupiter Topco New York $245B AUM

Jane Street's ATS Position: Q2 2026 in Review

Jane Street increased its ATS Corp (ATS) stake by 142% in Q2 2026, buying an estimated $3.6M and bringing the position to 199,635 shares worth $5.75M. The position accounts for ﹤0.01% of the portfolio, ranked #3507.

Jane Street first reported a position in ATS in Q2 2023 and has held it in 12 quarters since. 141 funds tracked by Wall St. Rank hold ATS as of Q2 2026.

Jane Street held 199,635 shares of ATS Corp worth $5.75M as of Q2 2026.
Jane Street bought 116,994 ATS Corp shares in Q2 2026, an estimated $3.6M.
ATS Corp made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #3507 holding.
Jane Street first reported a position in ATS Corp in Q2 2023 and has held it in 12 quarters since.
141 funds tracked by Wall St. Rank held ATS Corp as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.