RAPID MICRO BIOSYSTEMS INC (RPID)
Institutional ownership reported to the SEC as of Q2 2026, across 20 quarters.
33
Reporting holders
$30.3M
Reported value
0.0%
Held as options
-12
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Bain Capital Life Sciences Investors, LLC | $14.6M | 8,434,560 | 0.87% | 20q | HELD |
| ARMISTICE CAPITAL, LLC | $5.8M | 3,328,000 | 0.07% | new | NEW |
| ABG-WTT Global Life Science Capital Partners GP Ltd | $3.2M | 1,848,296 | 37.39% | 18q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.7M | 982,034 | 0.00% | 2q | HELD |
| Evernest Financial Advisors, LLC | $875.4K | 506,000 | 0.18% | 6q | +17.0%+$127.1K |
| Advent International, L.P. | $657.0K | 379,794 | 0.00% | 20q | -31.2%-$298.6K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | $627.5K | 362,696 | 0.08% | 6q | -59.0%-$901.7K |
| MILLENNIUM MANAGEMENT LLC | $409.3K | 236,599 | 0.00% | 3q | -16.5%-$80.8K |
| GEODE CAPITAL MANAGEMENT, LLC | $394.7K | 228,041 | 0.00% | 20q | -7.7%-$33.1K |
| RENAISSANCE TECHNOLOGIES LLC | $366.9K | 212,101 | 0.00% | 14q | +67.5%+$147.9K |
| BlackRock, Inc. | $328.4K | 189,832 | 0.00% | 8q | +20.7%+$56.4K |
| Legato Capital Management LLC | $206.8K | 119,534 | 0.02% | 6q | -56.5%-$268.8K |
| VANGUARD FIDUCIARY TRUST CO | $191.1K | 110,484 | 0.00% | 2q | +0.7%+$1.3K |
| DIMENSIONAL FUND ADVISORS LP | $180.3K | 104,192 | 0.00% | 6q | +19.0%+$28.7K |
| STATE STREET CORP | $162.4K | 93,874 | 0.00% | 20q | HELD |
| XTX Topco Ltd | $137.9K | 79,727 | 0.00% | 2q | +30.6%+$32.3K |
| SEI INVESTMENTS CO | $115.7K | 66,869 | 0.00% | 3q | -76.5%-$377.0K |
| NORTHERN TRUST CORP | $72.8K | 42,106 | 0.00% | 20q | -12.8%-$10.7K |
| ALGERT GLOBAL LLC | $66.3K | 38,307 | 0.00% | 2q | -17.4%-$13.9K |
| MORGAN STANLEY | $47.7K | 27,587 | 0.00% | 20q | -5.5%-$2.8K |
| JANE STREET GROUP, LLC | $44.9K | 25,931 | 0.00% | 4q | -80.5%-$185.1K |
| CITADEL ADVISORS LLC | $27.9K | 16,142 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $24.7K | 14,300 | 0.00% | 6q | +2.1% |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | $21.6K | 12,500 | 0.02% | 3q | HELD |
| AMERICAN CENTURY COMPANIES INC | $20.1K | 11,638 | 0.00% | 6q | -31.2%-$9.1K |
| Vanguard Global Advisers, LLC | $20.1K | 11,630 | 0.00% | 2q | HELD |
| Larson Financial Group LLC | $14.5K | 8,395 | 0.00% | 2q | +52.9%+$5.0K |
| UBS Group AG | $11.4K | 6,607 | 0.00% | 6q | -41.3%-$8.0K |
| Tower Research Capital LLC (TRC) | $3.3K | 1,900 | 0.00% | new | NEW |
| BARCLAYS PLC | $583 | 337 | 0.00% | 3q | -98.4%-$36.8K |
| JPMORGAN CHASE & CO | $189 | 109 | 0.00% | 20q | HELD |
| Caitong International Asset Management Co., Ltd | $61 | 35 | 0.00% | new | NEW |
| HRT FINANCIAL LP | $39 | 23,093 | 0.00% | new | NEW |
| SBI Securities Co., Ltd. | $26 | 15 | 0.00% | 6q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G | Armistice Capital, LLCwith 1 co-filers | 7.3% |
| 2026-08-14 | 13G/A | Bain Capital Life Sciences Fund, L.P.with 1 co-filers | 16.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 33 | $30.3M | 17,500,172 | 4 | 8 | 13 | 0.0% |
| Q1 2026 | 45 | $36.0M | 15,862,560 | 10 | 16 | 9 | 0.0% |
| Q4 2025 | 41 | $42.5M | 14,619,790 | 14 | 11 | 8 | 0.0% |
| Q3 2025 | 28 | $49.5M | 14,828,596 | 4 | 8 | 7 | 0.0% |
| Q2 2025 | 28 | $52.3M | 15,145,110 | 3 | 10 | 8 | 0.0% |
| Q1 2025 | 27 | $40.4M | 15,314,594 | 13 | 8 | 4 | 0.0% |
| Q4 2024 | 17 | $10.7M | 11,936,490 | 1 | 6 | 3 | 0.0% |
| Q3 2024 | 18 | $15.9M | 17,880,204 | 2 | 2 | 5 | 0.0% |
| Q2 2024 | 19 | $12.6M | 19,083,027 | 1 | 4 | 7 | 0.0% |
| Q1 2024 | 19 | $18.8M | 19,626,790 | 1 | 5 | 3 | 0.0% |
| Q4 2023 | 22 | $15.4M | 20,759,722 | 3 | 5 | 3 | 0.0% |
| Q3 2023 | 20 | $23.1M | 21,409,857 | 1 | 4 | 5 | 0.0% |
| Q2 2023 | 20 | $21.8M | 21,820,560 | 1 | 4 | 3 | 0.0% |
| Q1 2023 | 24 | $17.7M | 13,506,004 | 0 | 4 | 8 | 0.0% |
| Q4 2022 | 31 | $14.5M | 12,833,123 | 5 | 7 | 7 | 0.0% |
| Q3 2022 | 49 | $82.8M | 25,634,695 | 7 | 8 | 13 | 0.0% |
| Q2 2022 | 48 | $112.2M | 26,108,376 | 14 | 8 | 15 | 0.0% |
| Q1 2022 | 58 | $181.0M | 26,648,497 | 11 | 22 | 12 | 0.0% |
| Q4 2021 | 55 | $232.0M | 21,821,890 | 11 | 20 | 9 | 0.0% |
| Q3 2021 | 49 | $401.4M | 21,751,575 | 49 | 0 | 0 | 0.0% |