Rapid Micro Biosystems Inc. Class ARPID
13F holders, Q2 2025 (June 30)At the end of Q2 2025, 29 institutions reported holding Rapid Micro Biosystems Inc. Class A (RPID) in their 13F filings, up 1 from Q1 2025. 3 opened new positions and 2 sold out. The largest holders were Bain Capital Life Sciences Investors, LLC ($29.1M), ABG-WTT Global Life Science Capital Partners GP Ltd ($6.4M) and Schonfeld Strategic Advisors LLC ($3.6M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Rapid Micro Biosystems Inc. Class A
- CUSIP
- 75340L104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $216K |
| Exits | 2 | $290K |
All 13F filers, Q1 2025 → Q2 2025: 319,810 shares bought and 489,294 shares sold, net −169,484 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 29 holders
| Bain Capital Life Sciences Investors, LLC | 3.64% | No change | 8,434,560 | $29.1M |
| ABG-WTT Global Life Science Capital Partners GP Ltd | 23.83% | No change | 1,848,296 | $6.4M |
| Schonfeld Strategic Advisors LLC | 0.03% | Add +0.9% | 1,037,668 | $3.6M |
| Parkman Healthcare Partners LLC | 0.36% | Add +24.2% | 913,443 | $3.2M |
| Vanguard Group Inc. | 0.00% | Add +1.6% | 904,363 | $3.1M |
| Advent International, L.P. | 0.06% | No change | 577,777 | $2.0M |
| BlackRock, Inc. | 0.00% | Reduce -25.7% | 476,817 | $1.6M |
| Geode Capital Management, LLC | 0.00% | Add +1.6% | 204,079 | $704K |
| Informed Momentum Co LLC | 0.09% | Reduce -3.9% | 170,105 | $587K |
| Renaissance Technologies | 0.00% | Add +0.4% | 110,987 | $383K |
| Essex Investment Management Co. LLC | 0.04% | Reduce -1.2% | 62,326 | $215K |
| State Street Corp. | 0.00% | No change | 59,874 | $207K |
| Susquehanna International Group, LLP | 0.00% | Reduce -67.3% | 51,859 | $179K |
| Northern Trust Corp. | 0.00% | Add +6.4% | 48,559 | $168K |
| Evernest Financial Advisors, LLC | 0.05% | Reduce -66.5% | 44,000 | $152K |
| XTX Topco Ltd | 0.01% | New | 41,800 | $144K |
| Dimensional Fund Advisors LP | 0.00% | Add +90.8% | 40,387 | $140K |
| Morgan Stanley | 0.00% | Add +85.1% | 36,223 | $125K |
| Citadel Advisors | 0.00% | New | 20,762 | $72K |
| Mariner, LLC | 0.00% | Reduce -36.7% | 20,225 | $70K |
| American Century Companies Inc. | 0.00% | Add +46.1% | 16,922 | $58K |
| Legato Capital Management LLC | 0.01% | Reduce -4.7% | 14,684 | $51K |
| UBS Group AG | 0.00% | Add +41295.2% | 8,693 | $30K |
| Resources Management Corp. /CT/ | 0.00% | No change | 500 | $2K |
| Osaic Holdings, Inc. | 0.00% | Reduce -50.0% | 300 | $1K |
| Bank of America Corp. | 0.00% | Add +19.6% | 177 | $611 |
| JPMorgan Chase & Co. | 0.00% | No change | 109 | $376 |
| Steward Partners Investment Advisory, LLC | 0.00% | New | 100 | $345 |
| SBI Securities Co., Ltd. | 0.00% | No change | 15 | $52 |
"% of holder's portfolio" is RPID's weight in each manager's 13F, not the share of Rapid Micro Biosystems Inc. Class A the manager owns.