Jane Street’s iSpecimen ISPC Stock Holding History

Jane Street’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	$64.7K	Buy	24,414 +23,023	+1,655%	+$95.2K	﹤0.01%	10823
2026 Q1	$8.73K	Buy	1,391 +1,039	+295%	+$11.7K	﹤0.01%	11317
2025 Q4	$3.67K	Sell	352 -154	-30%	-$3.9K	﹤0.01%	10908
2025 Q3	$26.1K	Buy	+506	New	+$23.8K	﹤0.01%	10486
2024 Q4	–	Sell	-547	Closed	-$103K	–	9986
2024 Q3	$103K	Buy	547 +522	+2,088%	+$113K	﹤0.01%	8981
2024 Q2	$6.14K	Buy	+25	New	+$6K	﹤0.01%	9149
2022 Q2	–	Sell	-13	Closed	-$56K	–	10216
2022 Q1	$56K	Buy	+13	New	+$50.8K	﹤0.01%	9654
2021 Q3	–	Sell	-36	Closed	-$208K	–	10315
2021 Q2	$208K	Buy	+36	New	+$207K	﹤0.01%	8761

Other funds holding ISPC

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

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 New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

CIAM

Caitong International Asset Management Hong Kong $729M AUM 1,176.98% 1-Year Est. Return

SBI Securities Tokyo, Japan $4.4B AUM 74.26% 1-Year Est. Return

Jane Street's ISPC Position: Q2 2026 in Review

Jane Street increased its iSpecimen (ISPC) stake by 1,655% in Q2 2026, buying an estimated $95.2K and bringing the position to 24,414 shares worth $64.7K. The position accounts for ﹤0.01% of the portfolio, ranked #10823.

Jane Street first reported a position in ISPC in Q2 2021 and has held it in 8 quarters since. The position peaked at $208K in Q2 2021. 8 funds tracked by Wall St. Rank hold ISPC as of Q2 2026.

Jane Street held 24,414 shares of iSpecimen worth $64.7K as of Q2 2026.
Jane Street bought 23,023 iSpecimen shares in Q2 2026, an estimated $95.2K.
iSpecimen made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #10823 holding.
Jane Street first reported a position in iSpecimen in Q2 2021 and has held it in 8 quarters since.
Jane Street's iSpecimen position peaked at $208K in Q2 2021.
8 funds tracked by Wall St. Rank held iSpecimen as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.