Citadel Advisors
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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 		$889K Buy
43,300
+4,200
+11% +$97.4K ﹤0.01% 7934
2025
Q4 		$741K Buy
39,100
+7,200
+23% +$82K ﹤0.01% 8082
2025
Q3 		$398K Buy
+31,900
New +$445K ﹤0.01% 9682
2025
Q2 		– Sell
-300
Closed -$1.89K – 13780
2025
Q1 		$1.89K Hold
300
– – ﹤0.01% 14086
2024
Q4 		$2.56K Buy
+300
New +$2.25K ﹤0.01% 14071
2024
Q3 		– Sell
-1,100
Closed -$6.6K – 14724
2024
Q2 		$6.6K Sell
1,100
-100
-8% -$634 ﹤0.01% 13320
2024
Q1 		$8.78K Sell
1,200
-100
-8% -$805 ﹤0.01% 13537
2023
Q4 		$11.1K Sell
1,300
-5,000
-79% -$38K ﹤0.01% 13060
2023
Q3 		$47.9K Sell
6,300
-10,400
-62% -$81.1K ﹤0.01% 11806
2023
Q2 		$120K Buy
16,700
+5,700
+52% +$39.2K ﹤0.01% 10661
2023
Q1 		$80.7K Buy
11,000
+4,800
+77% +$38.8K ﹤0.01% 11541
2022
Q4 		$51K Sell
6,200
-3,800
-38% -$33.5K ﹤0.01% 12114
2022
Q3 		$86K Sell
10,000
-3,700
-27% -$26.8K ﹤0.01% 11219
2022
Q2 		$99K Hold
13,700
– – ﹤0.01% 11420
2022
Q1 		$110K Buy
+13,700
New +$99.8K ﹤0.01% 12182
2014
Q3 		– Sell
-200
Closed -$1K – 8254
2014
Q2 		$1K Buy
+200
New +$1.39K ﹤0.01% 7880

Other funds holding ISSC

Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Morgan Stanley
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
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
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return
Millennium Management
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.