Citadel Advisors
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Citadel Advisors’s System1 SST Stock Holding History

Citadel Advisors’s Portfolio SST Stock Details SST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-1,710
Closed -$6.52K – 14964
2025
Q1 		$6.52K Sell
1,710
-1,790
-51% -$11K ﹤0.01% 13748
2024
Q4 		$31.4K Buy
3,500
+1,330
+61% +$13.4K ﹤0.01% 12829
2024
Q3 		$24.3K Buy
+2,170
New +$27.9K ﹤0.01% 12621
2024
Q1 		– Sell
-5,760
Closed -$128K – 15401
2023
Q4 		$128K Buy
5,760
+3,750
+187% +$55.5K ﹤0.01% 10622
2023
Q3 		$24.3K Sell
2,010
-260
-11% -$6.23K ﹤0.01% 12463
2023
Q2 		$102K Sell
2,270
-1,680
-43% -$63.6K ﹤0.01% 10902
2023
Q1 		$170K Sell
3,950
-21,550
-85% -$956K ﹤0.01% 10442
2022
Q4 		$1.2M Sell
25,500
-7,700
-23% -$396K ﹤0.01% 6471
2022
Q3 		$2.09M Buy
33,200
+10,540
+47% +$919K ﹤0.01% 5512
2022
Q2 		$1.58M Sell
22,660
-2,250
-9% -$284K ﹤0.01% 6038
2022
Q1 		$3.61M Buy
24,910
+23,490
+1,654% +$2.88M ﹤0.01% 4813
2021
Q4 		$141K Sell
1,420
-320
-18% -$31.8K ﹤0.01% 12348
2021
Q3 		$172K Sell
1,740
-1,820
-51% -$180K ﹤0.01% 12190
2021
Q2 		$352K Buy
+3,560
New +$354K ﹤0.01% 10880

Other funds holding SST

CH
Cannae Holdings Las Vegas, Nevada $134M AUM 85.46% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Cerity Partners
Cerity Partners New York $70.8B AUM 21.68% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
NMC
Nine Masts Capital Central, Hong Kong $693M AUM 31.93% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Citadel Advisors's SST Position: Q1 2026 in Review

Citadel Advisors sold out of System1 (SST) in Q1 2026, closing a stake of 12,759 shares — an estimated $50K sold.

Citadel Advisors first reported a position in SST in Q1 2021 and held it in 12 quarters. The position peaked at $41.8M in Q4 2021. 25 funds tracked by Wall St. Rank hold SST as of Q1 2026.

  • Citadel Advisors reported no remaining System1 position as of Q1 2026 after selling out during the quarter.
  • Citadel Advisors sold 12,759 System1 shares in Q1 2026, an estimated $50K.
  • Citadel Advisors first reported a position in System1 in Q1 2021 and held it in 12 quarters.
  • Citadel Advisors's System1 position peaked at $41.8M in Q4 2021.
  • 25 funds tracked by Wall St. Rank held System1 as of Q1 2026.

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