Rapid Micro Biosystems, Inc.
RPID- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001380106
No open-market purchases or sales by Rapid Micro Biosystems, Inc. insiders were filed in the last 90 days; 34 institutions reported holding it in 13F filings for Q2 2026, worth $30.3M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −11 vs. previous quarter
- 34
- 13F valueReported value at the end of Q2 2026
- $30.3M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding RPID, Q2 2026
No superinvestor reported holding RPID at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Rapid Micro Biosystems, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| May 22, 2026 (view filing)4:30 PM ET | May 20 | 2 days | Bain Capital Life Sciences Fund, L.P. and 3 others10% Owner | PPurchaseClass A Common Stock | +4.39M | – | – | –1.46M after | Derivative3 lots |
| Mar 12, 2026 (view filing) | Mar 11 | 1 day | Wilson John J. AddingtonCHIEF OPERATING OFFICER | SSaleClass A Common Stock | −9.60K | $4.32 | −$41.5K | −2.9%316.8K after | |
| Mar 12, 2026 (view filing) | Mar 10 | 2 days | Spignesi Robert G. Jr.PRESIDENT AND CEO | SSaleClass A Common Stock | −17.9K | $4.11 | −$73.7K | −1.5%1.17M after | |
| Mar 12, 2026 (view filing) | Mar 11 | 1 day | Wirtjes Sean MCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −7.48K | $4.32 | −$32.3K | −1.3%556.2K after | |
| Feb 20, 2026 (view filing) | Feb 20 | Same day | Wilson John J. AddingtonCHIEF OPERATING OFFICER | SSaleClass A Common Stock | −5.40K | $3.92 | −$21.2K | −1.6%326.4K after | |
| Feb 20, 2026 (view filing) | Feb 19 | 1 day | Spignesi Robert G. Jr.PRESIDENT AND CEO | SSaleClass A Common Stock | −38.3K | $3.89 | −$149.1K | −3.1%1.19M after | |
| Feb 20, 2026 (view filing) | Feb 20 | Same day | Wirtjes Sean MCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −17.3K | $3.92 | −$67.6K | −3.0%563.7K after | |
| Feb 10, 2026 (view filing) | Feb 9 | 1 day | Wilson John J. AddingtonCHIEF OPERATING OFFICER | SSaleClass A Common Stock | −4.61K | $3.78 | −$17.4K | −1.8%257.8K after | |
| Feb 10, 2026 (view filing) | Feb 9 | 1 day | Spignesi Robert G. Jr.PRESIDENT AND CEO | SSaleClass A Common Stock | −12.8K | $3.78 | −$48.5K | −1.3%962.1K after | |
| Feb 10, 2026 (view filing) | Feb 9 | 1 day | Wirtjes Sean MCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −6.03K | $3.78 | −$22.8K | −1.2%483.9K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Rapid Micro Biosystems, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bain Capital Life Sciences Investors, LLC | 8,434,560 | $14.6M | 0.87% | 00.0% | Unchanged |
| Armistice Capital, LLC | 3,328,000 | $5.76M | 0.16% | +3,328,000 | New |
| ABG-WTT Global Life Science Capital Partners GP Ltd | 1,848,296 | $3.20M | 37.39% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 982,034 | $1.70M | 0.00% | −4600.0% | Reduced |
| Evernest Financial Advisors, LLC | 506,000 | $875.4K | 0.18% | +73,490+17.0% | Added |
| Advent International Corp | 379,794 | $657.0K | 0.00% | −172,583−31.2% | Reduced |
| Essex Investment Management Co LLC | 362,696 | $627.5K | 0.08% | −521,235−59.0% | Reduced |
| Millennium Management LLC | 236,599 | $409.3K | 0.00% | −46,681−16.5% | Reduced |
| Geode Capital Management, LLC | 228,041 | $394.7K | 0.00% | −19,136−7.7% | Reduced |
| Renaissance Technologies LLC | 212,101 | $366.9K | 0.00% | +85,484+67.5% | Added |