Citadel Advisors

Citadel Advisors’s ATS Corp ATS Stock Holding History

Citadel Advisors’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 Q4	–	Sell	-14,500	Closed	-$380K	–	12647
2025 Q3	$380K	Sell	14,500 -200	-1%	-$5.76K	﹤0.01%	9795
2025 Q2	$469K	Buy	14,700 +2,500	+20%	+$68.5K	﹤0.01%	8786
2025 Q1	$304K	Sell	12,200 -16,700	-58%	-$466K	﹤0.01%	9551
2024 Q4	$881K	Buy	28,900 +23,900	+478%	+$726K	﹤0.01%	7309
2024 Q3	$145K	Buy	5,000 +600	+14%	+$17.3K	﹤0.01%	10603
2024 Q2	$142K	Buy	4,400 +1,200	+38%	+$38.7K	﹤0.01%	10416
2024 Q1	$108K	Buy	+3,200	New	+$127K	﹤0.01%	11251

Other funds holding ATS

Mason Capital Management New York $613M AUM 21.43% 1-Year Est. Return

Royal Bank of Canada

Royal Bank of Canada Toronto, Ontario, Canada $528B AUM 27.57% 1-Year Est. Return

EdgePoint Investment Group Toronto, Ontario, Canada $12.5B AUM 31.7% 1-Year Est. Return

Beutel, Goodman & Co Toronto, Ontario, Canada $14.8B AUM 15.12% 1-Year Est. Return

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 $245B AUM 31.4% 1-Year Est. Return

Fairfax Financial Holdings Toronto, Ontario, Canada $1.94B AUM 27.76% 1-Year Est. Return

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