ASTROTECH Corp (ASTC) Institutional Ownership

Ownership Summary

ASTROTECH Corp (NASDAQ:ASTC) showed up in the 13F filings of 13 institutional investors as of December 2025.

• Collectively, these holders controlled 6.8% of Astrotech's outstanding shares in December 2025, down from 18.8% in September 2025.
• They increased total shares held in ASTC by 42.31% quarter over quarter, and investors in Astrotech decreased 27.78% from a year ago.
• Of these 13 holders, 5 added to their stakes in Astrotech, 2 trimmed positions, and 6 made no changes.
• Institutional investors collectively held 113.55K shares in Astrotech as of December 2025, up by 33.76K shares quarter on quarter, and down 251.56K shares year over year.
• As of December 31, 2025, the biggest holder of Astrotech is DRW Securities, LLC at 31.46K shares, representing 1.88% of shares outstanding.
• Leading buyers of Astrotech shares for the quarter ending December 2025 were DRW Securities, LLC (19.75K), CITADEL ADVISORS LLC (15.05K), Tower Research Capital LLC (TRC) (110), Citigroup Inc (5), Wells Fargo & Company/Mn (4).
• Top sellers of ASTC stock for the quarter ending December 2025 included UBS Group AG (995), Bank Of America Corp /De/ (162).
• According to Business Quant data, leading holders of ASTC for December 2025 are DRW Securities, LLC (31.46K), BlackRock, Inc. (20.19K), GEODE CAPITAL MANAGEMENT, LLC (18.78K), CITADEL ADVISORS LLC (15.05K), VANGUARD GROUP INC (14.77K), SCS Capital Management LLC (11.76K), UBS Group AG (903), Tower Research Capital LLC (TRC) (514), Bank Of America Corp /De/ (66), Federation des caisses Desjardins du Quebec (23).