Senseonics Holdings SENS Institutional Ownership

Updated Oct 11, 2026

Senseonics Holdings, Inc. (NASDAQ:SENS) appeared in the 13F filings of 111 institutional investors for the quarter ended June 30, 2026.

• Collectively, these holders controlled 36.06% of Senseonics Holdings' outstanding shares in Q2 2026, up from 19.15% in Q1 2026.
• Total shares held in Senseonics Holdings rose 137.72% from Q1 2026, while the number of holders fell 17.16% from Q2 2025.
• Of the 111 holders, 77 added to their positions, 15 reduced their stakes and 19 left their positions unchanged in Q2 2026.
• Combined, institutional investors held 20.86Mn shares of SENS as of Q2 2026, up 12.08Mn from the prior quarter and up 13.36Mn from a year earlier.
• Sessa Capital IM, L.P. held the largest position in SENS at 4.44Mn shares as of June 30, 2026, or 7.67% of shares outstanding.
• The biggest increases in SENS positions during Q2 2026 came from Sessa Capital IM, L.P. (+2.67Mn shares), BlackRock, Inc. (+2.22Mn shares), Sio Capital Management, LLC (+1.48Mn shares), UBS Group AG (+1.04Mn shares) and Geode Capital Management, LLC (+665.7K shares).
• The biggest cuts to SENS positions during Q2 2026 came from Millennium Management LLC (-481.15K shares), Susquehanna International Group, LLP (-217.68K shares), Marshall Wace, LLP (-58.68K shares), Deutsche Bank AG (-44.92K shares) and Citadel Advisors LLC (-43.37K shares).
• Per Business Quant, the top 10 investors in SENS for the quarter ended June 30, 2026 were Sessa Capital IM, L.P. (4.44Mn shares), BlackRock, Inc. (2.79Mn shares), Vanguard Capital Management LLC (1.78Mn shares), Avidity Partners Management LP (1.6Mn shares), Sio Capital Management, LLC (1.59Mn shares), UBS Group AG (1.49Mn shares), Geode Capital Management, LLC (1.13Mn shares), Masters Capital Management LLC (700K shares), State Street Corp (511.12K shares) and Marshall Wace, LLP (405.69K shares).