Solid Biosciences Inc. (SLDB) Institutional Ownership

Ownership Summary

Recent 13F filings as of September 2025 show that 129 institutional investors hold a position in Solid Biosciences Inc. (NASDAQ:SLDB).

• The percentage of Solid Biosciences owned by institutions changed from 102.4% in June 2025 to 104.7% in September 2025, marking a slight up trend.
• In percentage terms, this reflects as a holdings change of 1.02% quarter on quarter, and an increase of 41.76% year over year.
• Among the 129 institutional holders of Solid Biosciences, 59 added to their stakes while 44 trimmed their positions and 26 held steady.
• The total number of shares held by institutions in Solid Biosciences increased to 81.51Mn as of September 2025, a net change of up by 821.46K shares quarter on quarter, and up 45.86Mn shares year over year.
• PERCEPTIVE ADVISORS LLC continues to be the largest institutional holder of Solid Biosciences as of September 30, 2025, with a position of 11.83Mn shares, representing 15.20% of the company's outstanding stock.
• Among the most significant buyers of Solid Biosciences during September 2025 were Vestal Point Capital, LP (1.47Mn), CITADEL ADVISORS LLC (706.81K), ARMISTICE CAPITAL, LLC (536.00K), PANAGORA ASSET MANAGEMENT INC (397.19K), Parkman Healthcare Partners LLC (396.40K).
• Leading sellers of Solid Biosciences stock in September 2025 included ADAGE CAPITAL PARTNERS GP, L.L.C. (2.73Mn), Boxer Capital Management, LLC (640.70K), VANGUARD GROUP INC (281.70K), FMR LLC (264.27K), GEODE CAPITAL MANAGEMENT, LLC (222.91K).
• The top 10 institutional holders of Solid Biosciences for the quarter ending September 2025 included PERCEPTIVE ADVISORS LLC (11.83Mn), Bain Capital Life Sciences Investors, LLC (7.91Mn), Siren, L.L.C. (7.42Mn), RA CAPITAL MANAGEMENT, L.P. (5.81Mn), BlackRock, Inc. (4.73Mn), ADAGE CAPITAL PARTNERS GP, L.L.C. (4.00Mn), VANGUARD GROUP INC (3.08Mn), Vestal Point Capital, LP (2.98Mn), FMR LLC (2.91Mn), CITADEL ADVISORS LLC (2.59Mn).