Rapid Micro Biosystems RPID Institutional Ownership

Rapid Micro Biosystems, Inc. (NASDAQ:RPID) appears in 33 institutional 13F filings for the quarter ending June 2026.

• These investors collectively held 36.0% of Rapid Micro Biosystems's outstanding shares in June 2026, up from 34.3% in March 2026.
• They increased total shares held in RPID by 16.7% quarter over quarter, and investors in Rapid Micro Biosystems increased 22.22% from a year ago.
• During the quarter, 14 of these 33 funds increased positions in RPID, 12 reduced exposure, and 7 held steady.
• Institutional investors collectively held 17.4Mn shares in Rapid Micro Biosystems as of June 2026, up by 2.49Mn shares quarter on quarter, and up 2.33Mn shares year over year.
• As of June 30, 2026, Bain Capital Life Sciences Investors, LLC held the largest stake in Rapid Micro Biosystems with 8.43Mn shares, accounting for 17.45% of total shares outstanding.
• The largest buyers of Rapid Micro Biosystems for the quarter ending June 2026 were ARMISTICE CAPITAL, LLC (3.33Mn), RENAISSANCE TECHNOLOGIES LLC (85.48K), Evernest Financial Advisors, LLC (73.49K), BlackRock, Inc. (32.6K), HRT FINANCIAL LP (23.09K).
• The largest sales of RPID for the quarter ending June 2026 came from ESSEX INVESTMENT MANAGEMENT CO LLC (521.24K), Sei Investments Co (217.95K), ADVENT INTERNATIONAL, L.P. (172.58K), JANE STREET GROUP, LLC (106.99K), MILLENNIUM MANAGEMENT LLC (46.68K).
• According to Business Quant data, leading holders of RPID for June 2026 are Bain Capital Life Sciences Investors, LLC (8.43Mn), ARMISTICE CAPITAL, LLC (3.33Mn), ABG-WTT Global Life Science Capital Partners GP Ltd (1.85Mn), VANGUARD CAPITAL MANAGEMENT LLC (982.03K), Evernest Financial Advisors, LLC (506.0K), ADVENT INTERNATIONAL, L.P. (379.79K), ESSEX INVESTMENT MANAGEMENT CO LLC (362.7K), MILLENNIUM MANAGEMENT LLC (236.6K), GEODE CAPITAL MANAGEMENT, LLC (228.04K), RENAISSANCE TECHNOLOGIES LLC (212.1K).