Institutional Ownership
Rapid Micro Biosystems Inc
CUSIP 75340L104CLASS A COMRPIDQ1 2026
13D / 13G Filings
22
Schedule 13D/13G on record
Beneficial Filers
10
Distinct reporting persons
Largest Stake
22.2%
Max % of class reported
Institutional Holders
43
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
22 filings · latest Feb 13, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 13, 2026 | Endeavour Medtech Growth II LP | 13G/A | 5.7% | 2.26M | SEC |
| 2 | Aug 19, 2025 | Spignesi Robert G Jr | 13D | 6.3% | — | SEC |
| 3 | Feb 14, 2024 | T. Rowe Price Investment Management, Inc. | 13G/A | — | — | SEC |
| 4 | Jan 22, 2024 | Endeavour Medtech Growth II LP | 13G/A | 6.0% | 2.26M | SEC |
| 5 | Feb 14, 2023 | T. Rowe Price Investment Management, Inc. | 13G | 6.0% | 2.19M | SEC |
| 6 | Feb 14, 2023 | Longitude Capital Partners II, LLC | 13G/A | 10.9% | 4.04M | SEC |
| 7 | Feb 14, 2023 | D1 Capital Partners L.P. | 13G/A | — | — | SEC |
| 8 | Feb 14, 2023 | Price T Rowe Associates Inc /Md/ | 13G/A | 2.2% | 800.5K | SEC |
| 9 | Feb 8, 2023 | Colony Harvest Ltd | 13G/A | 4.5% | 1.62M | SEC |
| 10 | Nov 7, 2022 | Jpmorgan Chase & Co | 13G/A | 3.8% | 1.40M | SEC |
12 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Rapid Micro Biosystems Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Bain Capital Life Sciences Investors, LLC | 8.43M | $19.15M |
| 2 | Abg-Wtt Global Life Science Capital Partners Gp Ltd | 1.85M | $4.20M |
| 3 | Essex Investment Management Co LLC | 883.9K | $2.01M |
| 4 | Advent International, L.P. | 552.4K | $1.25M |
| 5 | Evernest Financial Advisors, LLC | 432.5K | $1.02M |
| 6 | Sei Investments Co | 284.8K | $646.5K |
| 7 | Millennium Management LLC | 283.3K | $643.0K |
| 8 | Legato Capital Management LLC | 274.9K | $624.1K |
| 9 | Geode Capital Management, LLC | 247.2K | $561.3K |
| 10 | Susquehanna International Group, LLP | 212.1K | $481.5K |