Nanobiotix S.A. (NBTX) Institutional Ownership

Ownership Summary

Nanobiotix S.A. (NASDAQ:NBTX) currently has 11 active institutional owners and shareholders as of today (September 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• Nanobiotix saw its institutional ownership percentage fell to 11.9% in September 2025 from 11.9% in June 2025.
• Institutional share ownership changed by -0.00% QoQ, while the number of institutional owners saw an increase of 10.00% YoY.
• During the quarter, 1 institutions bought more Nanobiotix shares, 4 sold shares, and 6 of the 11 total investors held their position steady.
• Collectively, institutional investors decreased their stake in Nanobiotix to 5.64Mn shares as of September 2025, a change that is down by 187 shares quarter on quarter and down 773.05K shares year over year.
• JOHNSON & JOHNSON continues to be the largest institutional holder of Nanobiotix as of September 30, 2025, with a position of 5.62Mn shares, representing 11.86% of the company's outstanding stock.
• Among the most significant buyers of Nanobiotix during September 2025 were Optiver Holding B.V. (5.36K).
• Leading sellers of Nanobiotix stock in September 2025 included MORGAN STANLEY (2.92K), UBS Group AG (2.26K), BNP PARIBAS FINANCIAL MARKETS (361), EverSource Wealth Advisors, LLC (3).
• The top 10 institutional holders of Nanobiotix for the quarter ending September 2025 included JOHNSON & JOHNSON (5.62Mn), GEODE CAPITAL MANAGEMENT, LLC (10.18K), Optiver Holding B.V. (5.36K), MORGAN STANLEY (2.38K), UBS Group AG (2.16K), EverSource Wealth Advisors, LLC (514), BNP PARIBAS FINANCIAL MARKETS (400), ROYAL BANK OF CANADA (125), RHUMBLINE ADVISERS (33), NATIONAL BANK OF CANADA /FI/ (13).