Generate Biomedicines, Inc. - GENB
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Flagship Pioneering, LLC | History | New | 62,673,117 | 783,413 | 67.44% | — | 1 | +62,673,117 | New | Q1 2026 | May 15, 2026 |
| FMR LLC | History | New | 4,217,524 | 52,719 | 0.0% | — | 2 | +4,217,524 | New | Q1 2026 | May 15, 2026 |
| Capital World Investors | History | New | 4,004,149 | 50,051 | 0.01% | — | 3 | +4,004,149 | New | Q1 2026 | May 13, 2026 |
| BRAIDWELL LP | History | New | 3,592,999 | 44,912 | 1.5% | — | 4 | +3,592,999 | New | Q1 2026 | May 15, 2026 |
| JPMORGAN CHASE & CO | History | New | 2,947,259 | 33,922 | 0.0% | — | 5 | +2,947,259 | New | Q1 2026 | May 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | New | 2,109,633 | 26,371 | 0.0% | — | 6 | +2,109,633 | New | Q1 2026 | May 15, 2026 |
| ARCH Venture Management, LLC | History | New | 1,944,426 | 24,305 | 3.59% | — | 7 | +1,944,426 | New | Q1 2026 | May 15, 2026 |
| HARBOURVEST PARTNERS LLC | History | New | 1,722,210 | 21,527 | 21.33% | — | 8 | +1,722,210 | New | Q1 2026 | May 15, 2026 |
| BAKER BROS. ADVISORS LP | History | New | 1,423,602 | 17,795 | 0.1% | — | 9 | +1,423,602 | New | Q1 2026 | May 15, 2026 |
| HARVARD MANAGEMENT CO INC | History | New | 1,111,100 | 13,888 | 0.76% | — | 10 | +1,111,100 | New | Q1 2026 | May 15, 2026 |
| NVIDIA CORP | History | New | 833,325 | 10,416 | 0.06% | — | 11 | +833,325 | New | Q1 2026 | May 15, 2026 |
| Siren, L.L.C. | History | New | 736,104 | 9,201 | 0.26% | — | 12 | +736,104 | New | Q1 2026 | May 14, 2026 |
| Davern Capital Partners, LP | History | New | 591,800 | 7,397 | 2.03% | — | 13 | +591,800 | New | Q1 2026 | May 14, 2026 |
| Alyeska Investment Group, L.P. | History | New | 500,000 | 6,250 | 0.02% | — | 14 | +500,000 | New | Q1 2026 | May 15, 2026 |
| ARK Investment Management LLC | History | New | 498,408 | 6,230 | 0.05% | — | 15 | +498,408 | New | Q1 2026 | May 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | New | 376,893 | 4,711 | 0.0% | — | 16 | +376,893 | New | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | New | 356,704 | 4,458 | 0.0% | — | 17 | +356,704 | New | Q1 2026 | May 05, 2026 |
| Affinity Asset Advisors, LLC | History | New | 350,000 | 4,375 | 0.23% | — | 18 | +350,000 | New | Q1 2026 | May 14, 2026 |
| MORGAN STANLEY | History | New | 337,302 | 4,216 | 0.0% | — | 19 | +337,302 | New | Q1 2026 | May 15, 2026 |
| CenterBook Partners LP | History | New | 266,813 | 3,335 | 0.18% | — | 20 | +266,813 | New | Q1 2026 | May 05, 2026 |
| SPHERA FUNDS MANAGEMENT LTD. | History | New | 185,000 | 2,312 | 0.37% | — | 21 | +185,000 | New | Q1 2026 | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | History | New | 170,695 | 2,133 | 0.0% | — | 22 | +170,695 | New | Q1 2026 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 131,319 | 1,641 | 0.0% | — | 23 | +131,319 | New | Q1 2026 | May 15, 2026 |
| SEVEN GRAND MANAGERS, LLC | History | New | 125,000 | 1,562 | 0.1% | — | 24 | +125,000 | New | Q1 2026 | May 06, 2026 |
| JANE STREET GROUP, LLC | History | New | 123,371 | 1,542 | 0.0% | — | 25 | +123,371 | New | Q1 2026 | May 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | New | 118,243 | 1,478 | 0.0% | — | 26 | +118,243 | New | Q1 2026 | May 15, 2026 |
| LMR Partners LLP | History | New | 100,000 | 1,250 | 0.0% | — | 27 | +100,000 | New | Q1 2026 | May 15, 2026 |
| SILVERARC CAPITAL MANAGEMENT, LLC | History | New | 100,000 | 1,250 | 0.13% | — | 28 | +100,000 | New | Q1 2026 | May 14, 2026 |
| D. E. Shaw & Co., Inc. | History | New | 95,000 | 1,187 | 0.0% | — | 29 | +95,000 | New | Q1 2026 | May 15, 2026 |
| AMERIPRISE FINANCIAL INC | History | New | 87,335 | 1,091 | 0.0% | — | 30 | +87,335 | New | Q1 2026 | May 15, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | New | 79,489 | 993 | 0.0% | — | 31 | +79,489 | New | Q1 2026 | May 15, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | New | 74,312 | 928 | 0.0% | — | 32 | +74,312 | New | Q1 2026 | May 15, 2026 |
| BARCLAYS PLC | History | New | 70,894 | 886 | 0.0% | — | 33 | +70,894 | New | Q1 2026 | May 14, 2026 |
| HRT FINANCIAL LP | History | New | 58,762 | 734 | 0.0% | — | 34 | +58,762 | New | Q1 2026 | May 14, 2026 |
| Qube Research & Technologies Ltd | History | New | 50,221 | 627 | 0.0% | — | 35 | +50,221 | New | Q1 2026 | May 15, 2026 |
| TD ASSET MANAGEMENT INC | History | New | 42,866 | 535 | 0.0% | — | 36 | +42,866 | New | Q1 2026 | May 11, 2026 |
| Sumitomo Mitsui Trust Group, Inc. | History | New | 40,344 | 504 | 0.0% | — | 37 | +40,344 | New | Q1 2026 | Apr 30, 2026 |
| Amova Asset Management Americas, Inc. | History | New | 40,344 | 499 | 0.01% | — | 38 | +40,344 | New | Q1 2026 | May 07, 2026 |
| Squarepoint Ops LLC | History | New | 37,203 | 465 | 0.0% | — | 39 | +37,203 | New | Q1 2026 | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | History | New | 34,196 | 427 | 0.0% | — | 40 | +34,196 | New | Q1 2026 | May 15, 2026 |
| FEDERATED HERMES, INC. | History | New | 30,000 | 375 | 0.0% | — | 41 | +30,000 | New | Q1 2026 | May 11, 2026 |
| TUDOR INVESTMENT CORP ET AL | History | New | 23,833 | 297 | 0.0% | — | 42 | +23,833 | New | Q1 2026 | May 15, 2026 |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | History | New | 19,203 | 240 | 0.02% | — | 43 | +19,203 | New | Q1 2026 | May 11, 2026 |
| Y-Intercept (Hong Kong) Ltd | History | New | 18,362 | 229 | 0.0% | — | 44 | +18,362 | New | Q1 2026 | Apr 27, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 17,456 | 218 | 0.0% | — | 45 | +17,456 | New | Q1 2026 | May 08, 2026 |
| Hudson Bay Capital Management LP | History | New | 16,678 | 208 | 0.0% | — | 46 | +16,678 | New | Q1 2026 | May 13, 2026 |
| Brevan Howard Capital Management LP | History | New | 12,571 | 157 | 0.0% | — | 47 | +12,571 | New | Q1 2026 | May 15, 2026 |
| Diametric Capital, LP | History | New | 10,497 | 131 | 0.03% | — | 48 | +10,497 | New | Q1 2026 | May 15, 2026 |
| Parallel Advisors, LLC | History | New | 5,550 | 69 | 0.0% | — | 49 | +5,550 | New | Q1 2026 | Jun 02, 2026 |
| ALBION FINANCIAL GROUP /UT | History | New | 4,854 | 60 | 0.0% | — | 50 | +4,854 | New | Q1 2026 | Apr 27, 2026 |
| FNY Investment Advisers, LLC | History | New | 3,000 | 37 | 0.02% | — | 51 | +3,000 | New | Q1 2026 | Apr 15, 2026 |
| CITIGROUP INC | History | New | 2,244 | 28 | 0.0% | — | 52 | +2,244 | New | Q1 2026 | May 11, 2026 |
| Vanguard Global Advisers, LLC | History | New | 1,225 | 15 | 0.0% | — | 54 | +1,225 | New | Q1 2026 | May 08, 2026 |
| WELLS FARGO & COMPANY/MN | History | New | 1,200 | 15 | 0.0% | — | 53 | +1,200 | New | Q1 2026 | May 11, 2026 |
| ROYAL BANK OF CANADA | History | New | 231 | 3 | 0.0% | — | 55 | +231 | New | Q1 2026 | May 15, 2026 |
| Avion Wealth | History | New | 100 | 1 | 0.0% | — | 56 | +100 | New | Q1 2026 | May 01, 2026 |
| Tower Research Capital LLC (TRC) | History | New | 1 | 0 | — | — | — | +1 | New | Q1 2026 | May 15, 2026 |