Shattuck Labs, Inc. (STTK) Institutional Ownership

Ownership Summary

Shattuck Labs, Inc. (NASDAQ:STTK) currently has 54 active institutional owners and shareholders as of today (September 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• These investors collectively held 75.8% of the company's total shares outstanding in September 2025, up from 59.9% in June 2025.
• In percentage terms, this reflects as a holdings change of 27.60% quarter on quarter, and a decrease of 29.87% year over year.
• A review of institutional activity for Shattuck Labs shows 20 of 54 filers increasing their positions, while 25 reduced their stake, and 9 remained unchanged.
• This class of investors increased its holdings in Shattuck Labs to 36.32Mn shares for the 13F-cycle ending September 2025, up by 7.86Mn shares quarter on quarter, and up 213.48K shares year over year.
• As of September 30, 2025, ADAGE CAPITAL PARTNERS GP, L.L.C. held Shattuck Labs's largest shareholding position with over 6.31Mn shares, representing 13.16% of total outstanding shares.
• Among the most significant buyers of Shattuck Labs during September 2025 were ORBIMED ADVISORS LLC (6.31Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (1.63Mn), BANK OF AMERICA CORP /DE/ (1.09Mn), MARSHALL WACE, LLP (587.61K), 683 Capital Management, LLC (437.22K).
• Leading sellers of Shattuck Labs stock in September 2025 included Prosight Management, LP (1.19Mn), BlackRock, Inc. (470.10K), GOLDMAN SACHS GROUP INC (308.45K), UBS Group AG (266.94K), JANE STREET GROUP, LLC (190.62K).
• The top 10 institutional holders of Shattuck Labs for the quarter ending September 2025 included ADAGE CAPITAL PARTNERS GP, L.L.C. (6.31Mn), ORBIMED ADVISORS LLC (6.31Mn), Redmile Group, LLC (5.54Mn), Prosight Management, LP (5.45Mn), VANGUARD GROUP INC (2.13Mn), 683 Capital Management, LLC (1.53Mn), CLARK ESTATES INC/NY (1.48Mn), PINNACLE ASSOCIATES LTD (1.39Mn), BANK OF AMERICA CORP /DE/ (1.13Mn), MILLENNIUM MANAGEMENT LLC (690.90K).