RAPID MICRO BIOSYSTEMS, INC. - RPID
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Bain Capital Life Sciences Investors, LLC | History | No change | 8,434,560 | 19,146 | 1.73% | 1.87% | 1 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| ABG-WTT Global Life Science Capital Partners GP Ltd | History | No change | 1,848,296 | 4,195 | 34.12% | 35.62% | 2 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| VANGUARD GROUP INC | History | No change | 978,781 | 2,838 | 0.0% | 0.0% | 3 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 982,494 | 2,230 | 0.0% | — | 4 | +982,494 | New | Q1 2026 | May 15, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Added to | 883,931 | 2,006 | 0.32% | 0.03% | 5 | +821,605 | 1318.24% | Q1 2026 | May 11, 2026 |
| ADVENT INTERNATIONAL, L.P. | History | Reduced | 552,377 | 1,253 | 0.03% | 0.03% | 6 | -25,400 | -4.4% | Q1 2026 | May 15, 2026 |
| Evernest Financial Advisors, LLC | History | Added to | 432,510 | 1,020 | 0.21% | 0.1% | 7 | +307,510 | 246.01% | Q1 2026 | May 04, 2026 |
| SEI INVESTMENTS CO | History | Added to | 284,816 | 646 | 0.0% | 0.0% | 8 | +191,200 | 204.24% | Q1 2026 | May 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 283,280 | 643 | 0.0% | 0.0% | 9 | +166,778 | 143.15% | Q1 2026 | May 15, 2026 |
| Legato Capital Management LLC | History | Added to | 274,924 | 624 | 0.06% | 0.0% | 10 | +260,240 | 1772.27% | Q1 2026 | May 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 247,177 | 561 | 0.0% | 0.0% | 11 | +29,609 | 13.61% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 212,114 | 481 | 0.0% | 0.0% | 12 | +39,879 | 23.15% | Q1 2026 | May 15, 2026 |
| BlackRock, Inc. | History | Added to | 157,232 | 356 | 0.0% | 0.0% | 13 | +566 | 0.36% | Q1 2026 | May 13, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 132,925 | 301 | 0.0% | 0.0% | 14 | +27,624 | 26.23% | Q1 2026 | May 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 126,617 | 287 | 0.0% | 0.0% | 15 | +10,990 | 9.5% | Q1 2026 | May 14, 2026 |
| 683 Capital Management, LLC | History | No change | 120,773 | 274 | 0.01% | 0.02% | 16 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 109,712 | 249 | 0.0% | — | 17 | +109,712 | New | Q1 2026 | May 08, 2026 |
| STATE STREET CORP | History | Added to | 93,874 | 213 | 0.0% | 0.0% | 18 | +2,400 | 2.62% | Q1 2026 | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 87,589 | 198 | 0.0% | 0.0% | 19 | +31,407 | 55.9% | Q1 2026 | May 07, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 71,912 | 163 | 0.0% | 0.0% | 20 | +16,606 | 30.03% | Q1 2026 | May 15, 2026 |
| FIFTH LANE CAPITAL, LP | History | Added to | 71,000 | 161 | 0.2% | 0.04% | 21 | +53,300 | 301.13% | Q1 2026 | May 15, 2026 |
| XTX Topco Ltd | History | New | 61,070 | 138 | 0.0% | — | 22 | +61,070 | New | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | Added to | 48,279 | 109 | 0.0% | 0.0% | 23 | +7,792 | 19.25% | Q1 2026 | May 14, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 31,014 | 70 | 0.0% | 0.0% | 24 | +18,085 | 139.88% | Q1 2026 | May 15, 2026 |
| MORGAN STANLEY | History | Reduced | 29,207 | 66 | 0.0% | 0.0% | 25 | -2,182 | -6.95% | Q1 2026 | May 15, 2026 |
| ALGERT GLOBAL LLC | History | New | 23,181 | 53 | 0.0% | — | 26 | +23,181 | New | Q1 2026 | May 14, 2026 |
| Temasek Holdings (Private) Ltd | History | New | 21,818 | 49 | 0.0% | — | 28 | +21,818 | New | Q1 2026 | May 12, 2026 |
| BARCLAYS PLC | History | Reduced | 21,595 | 49 | 0.0% | 0.0% | 27 | -3,264 | -13.13% | Q1 2026 | May 14, 2026 |
| Catalyst Funds Management Pty Ltd | History | New | 21,200 | 48 | 0.01% | — | 29 | +21,200 | New | Q1 2026 | May 11, 2026 |
| Graham Capital Management, L.P. | History | New | 20,000 | 45 | 0.0% | — | 30 | +20,000 | New | Q1 2026 | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | No change | 16,922 | 38 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| OMERS ADMINISTRATION Corp | History | Reduced | 15,900 | 36 | 0.0% | 0.0% | 32 | -8,500 | -34.84% | Q1 2026 | May 15, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 15,224 | 34 | 0.0% | 0.0% | 33 | -47,687 | -75.8% | Q1 2026 | May 14, 2026 |
| Qube Research & Technologies Ltd | History | Reduced | 15,410 | 34 | 0.0% | 0.0% | 34 | -17,689 | -53.44% | Q1 2026 | May 15, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 14,000 | 31 | 0.0% | 0.0% | 35 | -300 | -2.1% | Q1 2026 | May 15, 2026 |
| BANCO BILBAO VIZCAYA ARGENTARIA, S.A. | History | New | 12,691 | 29 | 0.0% | — | 36 | +12,691 | New | Q1 2026 | May 14, 2026 |
| Hudson Bay Capital Management LP | History | New | 12,524 | 28 | 0.0% | — | 38 | +12,524 | New | Q1 2026 | May 13, 2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | History | Reduced | 12,500 | 28 | 0.03% | 0.06% | 37 | -12,500 | -50.0% | Q1 2026 | May 15, 2026 |
| Vanguard Global Advisers, LLC | History | New | 11,630 | 26 | 0.0% | — | 39 | +11,630 | New | Q1 2026 | May 08, 2026 |
| UBS Group AG | History | Added to | 11,252 | 25 | 0.0% | — | 40 | +11,211 | 27343.9% | Q1 2026 | May 05, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 9,327 | 21 | 0.0% | 0.0% | 41 | -1,773 | -15.97% | Q1 2026 | May 12, 2026 |
| Larson Financial Group LLC | History | New | 5,491 | 12 | 0.0% | — | 42 | +5,491 | New | Q1 2026 | May 15, 2026 |
| ROYAL BANK OF CANADA | History | New | 719 | 2 | 0.0% | — | 43 | +719 | New | Q1 2026 | May 15, 2026 |
| RESOURCES MANAGEMENT CORP /CT/ /ADV | History | No change | 500 | 1 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Parkman Healthcare Partners LLC | History | Closed out | 0 | 0 | — | 0.1% | — | -354,465 | -100.0% | Q1 2026 | May 15, 2026 |
| Schonfeld Strategic Advisors LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -352,433 | -100.0% | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -126,539 | -100.0% | Q1 2026 | May 15, 2026 |
| Informed Momentum Co LLC | History | Closed out | 0 | 0 | — | 0.02% | — | -77,182 | -100.0% | Q1 2026 | May 13, 2026 |
| Point72 Asset Management, L.P. | History | Closed out | 0 | 0 | — | 0.0% | — | -30,367 | -100.0% | Q1 2026 | May 15, 2026 |
| Lighthouse Investment Partners, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -15,720 | -100.0% | Q1 2026 | May 14, 2026 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -4,832 | -100.0% | Q1 2026 | May 11, 2026 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | — | — | -317 | -100.0% | Q1 2026 | May 15, 2026 |
| CWM, LLC | History | New | 188 | 0 | — | — | — | +188 | New | Q1 2026 | May 14, 2026 |
| JPMORGAN CHASE & CO | History | No change | 109 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| SBI Securities Co., Ltd. | History | No change | 15 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | Apr 27, 2026 |