Citadel Advisors’s Innovative Solutions & Support ISSC Stock Holding History

Citadel Advisors’s Portfolio ISSC Stock Details ISSC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.07M	Sell	52,100 -35,200	-40%	-$816K	﹤0.01%	7502
2025 Q4	$1.65M	Buy	87,300 +57,900	+197%	+$660K	﹤0.01%	6306
2025 Q3	$367K	Buy	+29,400	New	+$411K	﹤0.01%	9870
2025 Q2	–	Sell	-300	Closed	-$1.89K	–	13779
2025 Q1	$1.89K	Sell	300 -200	-40%	-$1.72K	﹤0.01%	14085
2024 Q4	$4.27K	Buy	+500	New	+$3.75K	﹤0.01%	13940
2024 Q3	–	Sell	-300	Closed	-$1.8K	–	14722
2024 Q2	$1.8K	Sell	300 -900	-75%	-$5.71K	﹤0.01%	13775
2024 Q1	$8.78K	Sell	1,200 -1,300	-52%	-$10.5K	﹤0.01%	13536
2023 Q4	$21.3K	Buy	2,500 +1,700	+213%	+$12.9K	﹤0.01%	12570
2023 Q3	$6.08K	Sell	800 -900	-53%	-$7.02K	﹤0.01%	13344
2023 Q2	$12.2K	Sell	1,700 -3,200	-65%	-$22K	﹤0.01%	13093
2023 Q1	$36K	Buy	4,900 +500	+11%	+$4.04K	﹤0.01%	12557
2022 Q4	$36.2K	Buy	+4,400	New	+$38.8K	﹤0.01%	12529
2014 Q3	–	Sell	-500	Closed	-$4K	–	8252
2014 Q2	$4K	Buy	+500	New	+$3.48K	﹤0.01%	7759

Other funds holding ISSC

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

PAIM

Punch & Associates Investment Management Edina, Minnesota $1.73B AUM 27.65% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Citadel Advisors's ISSC Position: Q1 2026 in Review

Citadel Advisors increased its Innovative Solutions & Support (ISSC) stake by 138% in Q1 2026, buying an estimated $1.43M and bringing the position to 106,179 shares worth $2.18M. The position accounts for ﹤0.01% of the portfolio, ranked #5908.

Citadel Advisors first reported a position in ISSC in Q2 2014 and has held it in 18 quarters since. The position peaked at $3.62M in Q3 2025. 123 funds tracked by Wall St. Rank hold ISSC as of Q1 2026.

Citadel Advisors held 106,179 shares of Innovative Solutions & Support worth $2.18M as of Q1 2026.
Citadel Advisors bought 61,549 Innovative Solutions & Support shares in Q1 2026, an estimated $1.43M.
Innovative Solutions & Support made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #5908 holding.
Citadel Advisors first reported a position in Innovative Solutions & Support in Q2 2014 and has held it in 18 quarters since.
Citadel Advisors's Innovative Solutions & Support position peaked at $3.62M in Q3 2025.
123 funds tracked by Wall St. Rank held Innovative Solutions & Support as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.