Citadel Advisors
ISPC icon

Citadel Advisors’s iSpecimen ISPC Stock Holding History

Citadel Advisors’s Portfolio ISPC Stock Details ISPC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-1,262
Closed -$7.92K – 14275
2026
Q1 		$7.92K Buy
+1,262
New +$14.2K ﹤0.01% 12782
2025
Q3 		– Sell
-487
Closed -$19.1K – 13423
2025
Q2 		$19.1K Buy
+487
New +$22.7K ﹤0.01% 12114
2024
Q3 		– Sell
-32
Closed -$7.88K – 14721
2024
Q2 		$7.88K Buy
+32
New +$7.67K ﹤0.01% 13225
2024
Q1 		– Sell
-49
Closed -$19.4K – 15013
2023
Q4 		$19.4K Buy
+49
New +$21.3K ﹤0.01% 12639
2023
Q3 		– Sell
-29
Closed -$33.1K – 14677
2023
Q2 		$33.1K Buy
+29
New +$33.8K ﹤0.01% 12254
2022
Q3 		– Sell
-25
Closed -$43K – 13096
2022
Q2 		$43K Buy
+25
New +$61.2K ﹤0.01% 12022
2021
Q4 		– Sell
-16
Closed -$74K – 14279
2021
Q3 		$74K Buy
+16
New +$77.7K ﹤0.01% 13122

Other funds holding ISPC

UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
IA
IFP Advisors Tampa, Florida $5.54B AUM 27.43% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
CIAM
Caitong International Asset Management Hong Kong $729M AUM 1,176.98% 1-Year Est. Return
SS
SBI Securities Tokyo, Japan $4.4B AUM 74.26% 1-Year Est. Return

Citadel Advisors's ISPC Position: Q2 2026 in Review

Citadel Advisors sold out of iSpecimen (ISPC) in Q2 2026, closing a stake of 1,262 shares — an estimated $7.92K sold.

Citadel Advisors first reported a position in ISPC in Q3 2021 and held it in 7 quarters. The position peaked at $74K in Q3 2021. 8 funds tracked by Wall St. Rank hold ISPC as of Q2 2026.

  • Citadel Advisors reported no remaining iSpecimen position as of Q2 2026 after selling out during the quarter.
  • Citadel Advisors sold 1,262 iSpecimen shares in Q2 2026, an estimated $7.92K.
  • Citadel Advisors first reported a position in iSpecimen in Q3 2021 and held it in 7 quarters.
  • Citadel Advisors's iSpecimen position peaked at $74K in Q3 2021.
  • 8 funds tracked by Wall St. Rank held iSpecimen as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.