Generate Biomedicines, Inc. (GENB) — Institutional Holders, Q2 2026
86 institutional investment managers reported a GENB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.7B. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
GENB in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockNew · +1,659,966 sh+$28.0M
- Deep Track CapitalNew · +1,333,815 sh+$22.5M
- FMRAdded · +1,004,075 sh+$16.9M
- VANGUARD CAPITAL MANAGEMENTAdded · +1,001,431 sh+$16.9M
- ARK Investment ManagementAdded · +786,209 sh+$13.3M
Biggest sellers
- JPMORGAN CHASETrimmed · -1,537,610 sh-$25.9M
- Alyeska Investment Group, L.P.Sold out · -500,000 sh-$8.4M
- MILLENNIUM MANAGEMENTTrimmed · -354,967 sh-$6.0M
- BRAIDWELLTrimmed · -309,155 sh-$5.2M
- GOLDMAN SACHS GROUPTrimmed · -159,512 sh-$2.7M
GENB 13F holders ranked 1–86 of 86
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Flagship Pioneering#1 · 62,673,117 sh | 62,673,117 | $1.1B | 68.66% | 0.0% |
| 2 | FMR#2 · 5,221,599 sh | 5,221,599 | $88.1M | <0.01% | +23.8% |
| 3 | Capital World Investors#3 · 4,215,632 sh | 4,215,632 | $71.1M | <0.01% | +5.3% |
| 4 | BRAIDWELL#4 · 3,283,844 sh | 3,283,844 | $55.4M | 2.05% | -8.6% |
| 5 | PRICE T ROWE ASSOCIATES#5 · 2,156,627 sh | 2,156,627 | $36.4M | <0.01% | +2.2% |
| 6 | NORGES BANK#6 · 2,094,616 sh | 2,094,616 | $35.3M | <0.01% | — |
| 7 | ARCH Venture Management#7 · 1,944,426 sh | 1,944,426 | $32.8M | 2.98% | 0.0% |
| 8 | HARBOURVEST PARTNERS#8 · 1,722,210 sh | 1,722,210 | $29.1M | 17.09% | 0.0% |
| 9 | BlackRock#9 · 1,659,966 sh | 1,659,966 | $28.0M | <0.01% | New |
| 10 | BAKER BROS. ADVISORS#10 · 1,423,602 sh | 1,423,602 | $24.0M | 0.12% | 0.0% |
| 11 | JPMORGAN CHASE#11 · 1,409,649 sh | 1,409,649 | $23.8M | <0.01% | -52.2% |
| 12 | Deep Track Capital#12 · 1,333,815 sh | 1,333,815 | $22.5M | 0.33% | New |
| 13 | ARK Investment Management#13 · 1,284,617 sh | 1,284,617 | $21.7M | 0.14% | +157.7% |
| 14 | VANGUARD CAPITAL MANAGEMENT#14 · 1,132,750 sh | 1,132,750 | $19.1M | <0.01% | +762.6% |
| 15 | HARVARD MANAGEMENT#15 · 1,111,100 sh | 1,111,100 | $18.7M | 0.44% | 0.0% |
| 16 | NVIDIA#16 · 833,325 sh | 833,325 | $14.1M | 0.02% | 0.0% |
| 17 | Davern Capital Partners#17 · 824,679 sh | 824,679 | $13.9M | 2.37% | +39.4% |
| 18 | Siren, L.L.C.#18 · 736,104 sh | 736,104 | $12.4M | 0.25% | 0.0% |
| 19 | GEODE CAPITAL MANAGEMENT#19 · 735,003 sh | 735,003 | $12.4M | <0.01% | +521.6% |
| 20 | STATE STREET#20 · 526,565 sh | 526,565 | $8.9M | <0.01% | New |
| 21 | Affinity Asset Advisors#21 · 400,000 sh | 400,000 | $6.7M | 0.30% | +14.3% |
| 22 | MORGAN STANLEY#22 · 377,994 sh | 377,994 | $6.4M | <0.01% | +12.1% |
| 23 | UBS Group AG#23 · 326,273 sh | 326,273 | $5.5M | <0.01% | -8.5% |
| 24 | SPHERA FUNDS MANAGEMENT LTD.#24 · 245,000 sh | 245,000 | $4.1M | 0.54% | +32.4% |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT#25 · 224,602 sh | 224,602 | $3.8M | <0.01% | New |
| 26 | NORTHERN#26 · 197,543 sh | 197,543 | $3.3M | <0.01% | New |
| 27 | VANGUARD FIDUCIARY#27 · 175,356 sh | 175,356 | $3.0M | <0.01% | +904.6% |
| 28 | VANGUARD PORTFOLIO MANAGEMENT#28 · 167,285 sh | 167,285 | $2.8M | <0.01% | New |
| 29 | CenterBook Partners#29 · 131,560 sh | 131,560 | $2.2M | 0.11% | -50.7% |
| 30 | ALPS ADVISORS#30 · 129,406 sh | 129,406 | $2.2M | 0.01% | New |
| 31 | SEVEN GRAND MANAGERS#31 · 125,000 sh | 125,000 | $2.1M | 0.08% | 0.0% |
| 32 | BARCLAYS PLC#32 · 116,902 sh | 116,902 | $2.0M | <0.01% | +64.9% |
| 33 | LMR Partners LLP#33 · 100,000 sh | 100,000 | $1.7M | <0.01% | 0.0% |
| 34 | AMERIPRISE FINANCIAL#34 · 91,100 sh | 91,100 | $1.5M | <0.01% | +4.3% |
| 35 | MANUFACTURERS LIFE INSURANCE COMPANY, THE#35 · 84,803 sh | 84,803 | $1.4M | <0.01% | +14.1% |
| 36 | Bank of New York Mellon#36 · 57,326 sh | 57,326 | $967.1K | <0.01% | New |
| 37 | BANK OF AMERICA#37 · 55,430 sh | 55,430 | $935.1K | <0.01% | +62.1% |
| 38 | TD ASSET MANAGEMENT#38 · 50,748 sh | 50,748 | $856.1K | <0.01% | +18.4% |
| 39 | Nuveen#39 · 44,470 sh | 44,470 | $750.2K | <0.01% | New |
| 40 | RENAISSANCE TECHNOLOGIES#40 · 39,685 sh | 39,685 | $669.5K | <0.01% | New |
| 41 | Sumitomo Mitsui#41 · 38,665 sh | 38,665 | $652.3K | <0.01% | -4.2% |
| 42 | Nikko Asset Management Americas#42 · 38,218 sh | 38,218 | $644.4K | <0.01% | -5.3% |
| 43 | IQ EQ FUND MANAGEMENT (IRELAND) Ltd#43 · 37,226 sh | 37,226 | $628.0K | 0.04% | +93.9% |
| 44 | Quadrature Capital Ltd#44 · 31,510 sh | 31,510 | $531.6K | <0.01% | New |
| 45 | Squarepoint Ops#45 · 31,406 sh | 31,406 | $529.8K | <0.01% | -15.6% |
| 46 | RHUMBLINE ADVISERS#46 · 30,648 sh | 30,648 | $517.0K | <0.01% | New |
| 47 | CITIGROUP#47 · 30,587 sh | 30,587 | $516.0K | <0.01% | +1263.1% |
| 48 | Virtus Investment Advisers#48 · 26,430 sh | 26,430 | $445.9K | 0.10% | New |
| 49 | XTX Topco Ltd#49 · 24,956 sh | 24,956 | $421.0K | <0.01% | New |
| 50 | DEUTSCHE BANK AG\#50 · 24,135 sh | 24,135 | $407.2K | <0.01% | New |
| 51 | WELLS FARGO & COMPANY#51 · 23,302 sh | 23,302 | $393.1K | <0.01% | +1841.8% |
| 52 | ALLIANCEBERNSTEIN L.P.#52 · 22,650 sh | 22,650 | $382.1K | <0.01% | New |
| 53 | MILLENNIUM MANAGEMENT#53 · 21,926 sh | 21,926 | $369.9K | <0.01% | -94.2% |
| 54 | TWO SIGMA INVESTMENTS#54 · 18,374 sh | 18,374 | $310.0K | <0.01% | New |
| 55 | Magnus Financial Group#55 · 15,600 sh | 15,600 | $263.2K | — | New |
| 56 | MetLife Investment Management#56 · 14,841 sh | 14,841 | $250.4K | <0.01% | New |
| 57 | Invesco Ltd.#57 · 13,087 sh | 13,087 | $220.8K | 0.00% | New |
| 58 | AXQ CAPITAL#58 · 12,946 sh | 12,946 | $218.4K | 0.02% | New |
| 59 | SEI INVESTMENTS#59 · 12,088 sh | 12,088 | $203.9K | <0.01% | New |
| 60 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#60 · 11,622 sh | 11,622 | $196.1K | 0.00% | New |
| 61 | MIRAE ASSET GLOBAL ETFS Ltd.#61 · 11,193 sh | 11,193 | $188.8K | <0.01% | New |
| 62 | Parallel Advisors#62 · 11,191 sh | 11,191 | $188.8K | <0.01% | +101.6% |
| 63 | GOLDMAN SACHS GROUP#63 · 11,183 sh | 11,183 | $188.7K | 0.00% | -93.4% |
| 64 | Vanguard Global Advisers#64 · 11,088 sh | 11,088 | $187.1K | <0.01% | +805.1% |
| 65 | SG Americas Securities#65 · 9,277 sh | 9,277 | $157.0K | <0.01% | New |
| 66 | NEW YORK STATE COMMON RETIREMENT FUND#66 · 8,600 sh | 8,600 | $145.1K | <0.01% | New |
| 67 | Police & Firemen's Retirement System of New Jersey#67 · 7,200 sh | 7,200 | $121.5K | <0.01% | New |
| 68 | FEDERATED HERMES#68 · 5,000 sh | 5,000 | $84.3K | <0.01% | -83.3% |
| 69 | ALBION FINANCIAL GROUP#69 · 4,854 sh | 4,854 | $81.9K | — | 0.0% |
| 70 | STRS OHIO#70 · 4,800 sh | 4,800 | $81.0K | <0.01% | New |
| 71 | BNP PARIBAS FINANCIAL MARKETS#71 · 3,800 sh | 3,800 | $64.1K | 0.00% | New |
| 72 | Legal & General Group Plc#72 · 2,374 sh | 2,374 | $40.0K | 0.00% | New |
| 73 | Ameritas Investment Partners#73 · 2,215 sh | 2,215 | $37.4K | <0.01% | New |
| 74 | Russell Investments Group, Ltd.#74 · 1,952 sh | 1,952 | $32.9K | 0.00% | New |
| 75 | State of Wyoming#75 · 1,407 sh | 1,407 | $23.7K | <0.01% | New |
| 76 | STANCE CAPITAL#76 · 1,384 sh | 1,384 | $23.3K | <0.01% | New |
| 77 | ROYAL BANK OF CANADA#77 · 1,381 sh | 1,381 | $23.0K | 0.00% | +497.8% |
| 78 | Tower Research Capital (TRC)#78 · 1,014 sh | 1,014 | $17.1K | <0.01% | New |
| 79 | TD Waterhouse Canada#79 · 573 sh | 573 | $9.5K | — | New |
| 80 | Benson Wealth Management#80 · 363 sh | 363 | $6.1K | <0.01% | New |
| 81 | Sterling Capital Management#81 · 212 sh | 212 | $3.6K | — | New |
| 82 | JONES FINANCIAL COMPANIES LLLP#82 · 200 sh | 200 | $3.3K | 0.00% | New |
| 83 | Avion Wealth#83 · 200 sh | 200 | $3.0K | <0.01% | +100.0% |
| 84 | HOLLENCREST SECURITIES#84 · 5 sh | 5 | $84.00 | 0.00% | New |
| 85 | Caitong International Asset Management , Ltd#85 · 1 sh | 1 | $17.00 | 0.00% | New |
| 86 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM#86 · 336 sh | 336 | — | — | New |
Funds that sold out of GENB in Q2 2026 (12)
Held GENB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Alyeska Investment Group, L.P.500,000 sh | 500,000 | $6.3M |
| JANE STREET GROUP123,371 sh | 123,371 | $1.5M |
| SILVERARC CAPITAL MANAGEMENT100,000 sh | 100,000 | $1.3M |
| D. E. Shaw95,000 sh | 95,000 | $1.2M |
| BALYASNY ASSET MANAGEMENT L.P.79,489 sh | 79,489 | $993.6K |
| HRT FINANCIAL58,762 sh | 58,762 | $734.0K |
| Qube Research & Technologies Ltd50,221 sh | 50,221 | $627.8K |
| TUDOR INVESTMENT ET AL23,833 sh | 23,833 | $297.9K |
| Y-Intercept (Hong Kong) Ltd18,362 sh | 18,362 | $229.5K |
| Hudson Bay Capital Management16,678 sh | 16,678 | $208.5K |
| Diametric Capital10,497 sh | 10,497 | $131.2K |
| FNY Investment Advisers3,000 sh | 3,000 | $37.0K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.