iSpecimen Inc. (ISPC) Institutional Ownership

Ownership Summary

iSpecimen Inc. (NASDAQ:ISPC) currently has 11 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• Institutional ownership in iSpecimen edged down to 8.7% in December 2025, compared to 23.5% in September 2025.
• The company experienced a 31.13% quarterly change in institutional shares held, alongside an increase of 37.50% in total owners annually.
• Of these 11 institutional investors, 5 increased their holdings in iSpecimen, while 2 of them reduced positions, and 4 investors maintained their exposure.
• Collectively, institutional investors increased their stake in iSpecimen to 126.66K shares as of December 2025, a change that is up by 30.07K shares quarter on quarter and up 90.91K shares year over year.
• As of December 31, 2025, GEODE CAPITAL MANAGEMENT, LLC held iSpecimen's largest shareholding position with over 41.59K shares, representing 2.85% of total outstanding shares.
• Among the most significant buyers of iSpecimen during December 2025 were SUSQUEHANNA INTERNATIONAL GROUP, LLP (15.06K), Jump Financial, LLC (10.47K), UBS Group AG (6.45K), Tower Research Capital LLC (TRC) (4.31K), BANK OF AMERICA CORP /DE/ (38).
• Leading sellers of iSpecimen stock in December 2025 included JANE STREET GROUP, LLC (6.16K), GEODE CAPITAL MANAGEMENT, LLC (96).
• The top 10 institutional holders of iSpecimen for the quarter ending December 2025 included GEODE CAPITAL MANAGEMENT, LLC (41.59K), VANGUARD GROUP INC (29.41K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (15.06K), JANE STREET GROUP, LLC (14.09K), Jump Financial, LLC (10.47K), Tower Research Capital LLC (TRC) (6.66K), UBS Group AG (6.45K), BlackRock, Inc. (2.83K), BANK OF AMERICA CORP /DE/ (83), SBI Securities Co., Ltd. (4).