GENB Institutional Ownership & Shareholders
Generate Biomedicines, Inc. (GENB) is currently held by 94 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.72B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Flagship Pioneering, Llc is currently the largest disclosed institutional shareholder of GENB tracked by InsiderSet, reporting ownership valued at approximately $1.06B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $827.91M, representing an estimated loss of -21.70% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 85% of the total disclosed GENB value among the investors covered in this analysis. Major shareholders include Flagship Pioneering, Llc, Fmr Llc, Capital World Investors, and several other long-term asset managers with concentrated positions in Generate Biomedicines, Inc. (GENB).
This page ranks the largest institutional GENB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
94
Total Reported Value
$1.72B
Largest Holder
Flagship Pioneering, Llc
Largest Position
$1.06B
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
109
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Flagship Pioneering, Llc | 68.66% | 62,673,117 | $1,057,295,483 | $827,911,876 | -$229,383,607 | -21.70% | |
| Fmr Llc | 0.00% | 5,221,599 | $88,088,375 | $68,977,323 | -$19,111,052 | -21.70% | |
| Capital World Investors | 0.01% | 4,215,632 | $71,117,712 | $55,688,499 | -$15,429,213 | -21.70% | |
| Braidwell Lp | 2.05% | 3,283,844 | $55,398,448 | $43,379,579 | -$12,018,869 | -21.70% | |
| Price T Rowe Associates Inc | 0.00% | 2,156,627 | $36,383,000 | $28,489,043 | -$7,893,957 | -21.70% | |
| Norges Bank | 0.00% | 2,094,616 | $35,336,172 | $27,669,877 | -$7,666,295 | -21.70% | |
| Arch Venture Management, Llc | 2.98% | 1,944,426 | $32,802,467 | $25,685,867 | -$7,116,600 | -21.70% | |
| Harbourvest Partners Llc | 17.09% | 1,722,210 | $29,053,683 | $22,750,394 | -$6,303,289 | -21.70% | |
| Blackrock, Inc. | 0.00% | 1,659,966 | $28,003,627 | $21,928,151 | -$6,075,476 | -21.70% | |
| Banque Pictet & Cie Sa | 0.26% | 1,773,043 | $26,631,106 | $23,421,898 | -$3,209,208 | -12.05% | |
| Baker Bros. Advisors Lp | 0.12% | 1,423,602 | $24,016,166 | $18,805,782 | -$5,210,384 | -21.70% | |
| Jpmorgan Chase & Co | 0.00% | 1,409,649 | $23,837,165 | $18,621,463 | -$5,215,702 | -21.88% | |
| Deep Track Capital, Lp | 0.33% | 1,333,815 | $22,501,459 | $17,619,696 | -$4,881,763 | -21.70% | |
| ARK Invest | Cathie Wood | 0.14% | 1,284,617 | $21,671,492 | $16,969,791 | -$4,701,701 | -21.70% |
| Vanguard Capital Management Llc | 0.00% | 1,132,750 | $19,109,493 | $14,963,628 | -$4,145,865 | -21.70% | |
| Harvard Management Co Inc | 0.44% | 1,111,100 | $18,744,257 | $14,677,631 | -$4,066,626 | -21.70% | |
| Nvidia Corp | 0.02% | 833,325 | $14,058,193 | $11,008,223 | -$3,049,970 | -21.70% | |
| Davern Capital Partners, Lp | 2.37% | 824,679 | $13,912,335 | $10,894,010 | -$3,018,325 | -21.70% | |
| Siren, L.L.C. | 0.25% | 736,104 | $12,418,075 | $9,723,934 | -$2,694,141 | -21.70% | |
| Geode Capital Management, Llc | 0.00% | 735,003 | $12,402,534 | $9,709,390 | -$2,693,144 | -21.71% | |
| State Street Corp | 0.00% | 526,565 | $8,883,152 | $6,955,924 | -$1,927,228 | -21.70% | |
| Affinity Asset Advisors, Llc | 0.33% | 400,000 | $6,748,000 | $5,284,000 | -$1,464,000 | -21.70% | |
| Morgan Stanley | 0.00% | 377,994 | $6,376,773 | $4,993,301 | -$1,383,472 | -21.70% | |
| Ubs Group Ag | 0.00% | 326,273 | $5,504,225 | $4,310,066 | -$1,194,159 | -21.70% | |
| Sphera Funds Management Ltd. | 0.59% | 245,000 | $4,133,150 | $3,236,450 | -$896,700 | -21.70% | |
| Charles Schwab Investment Management Inc | 0.00% | 224,602 | $3,789,036 | $2,966,992 | -$822,044 | -21.70% | |
| Northern Trust Corp | 0.00% | 197,543 | $3,332,551 | $2,609,543 | -$723,008 | -21.70% | |
| Vanguard Fiduciary Trust Co | 0.00% | 175,356 | $2,958,256 | $2,316,453 | -$641,803 | -21.70% | |
| Vanguard Portfolio Management Llc | 0.00% | 167,285 | $2,822,098 | $2,209,835 | -$612,263 | -21.70% | |
| Alps Advisors Inc | 0.01% | 129,406 | $2,183,079 | $1,709,453 | -$473,626 | -21.70% | |
| Seven Grand Managers, Llc | 0.08% | 125,000 | $2,108,750 | $1,651,250 | -$457,500 | -21.70% | |
| Barclays Plc | 0.00% | 116,902 | $1,972,137 | $1,544,275 | -$427,862 | -21.70% | |
| Lmr Partners Llp | 0.01% | 100,000 | $1,687,000 | $1,321,000 | -$366,000 | -21.70% | |
| Ameriprise Financial Inc | 0.00% | 91,100 | $1,536,857 | $1,203,431 | -$333,426 | -21.70% | |
| Manufacturers Life Insurance Company, The | 0.00% | 84,803 | $1,430,627 | $1,120,248 | -$310,379 | -21.70% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.00% | 78,531 | $1,179,536 | $1,037,395 | -$142,141 | -12.05% | |
| Bank Pictet & Cie (Europe) Ag | 0.02% | 77,778 | $1,168,226 | $1,027,447 | -$140,779 | -12.05% | |
| Bank Of New York Mellon Corp | 0.00% | 57,326 | $967,090 | $757,276 | -$209,814 | -21.70% | |
| Bank Of America Corp | 0.00% | 55,430 | $935,104 | $732,230 | -$202,874 | -21.70% | |
| Td Asset Management Inc | 0.00% | 50,748 | $856,119 | $670,381 | -$185,738 | -21.70% | |
| Nuveen, Llc | 0.00% | 44,470 | $750,209 | $587,449 | -$162,760 | -21.70% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 39,685 | $669,486 | $524,239 | -$145,247 | -21.70% |
| Centerbook Partners Lp | 0.03% | 43,373 | $651,462 | $572,957 | -$78,505 | -12.05% | |
| Amova Asset Management Americas, Inc. | 0.01% | 38,218 | $644,355 | $504,860 | -$139,495 | -21.65% | |
| Iq Eq Fund Management (Ireland) Ltd | 0.04% | 37,226 | $628,003 | $491,755 | -$136,248 | -21.70% | |
| Dynamic Advisor Solutions Llc | 0.02% | 40,816 | $613,056 | $539,179 | -$73,877 | -12.05% | |
| Quadrature Capital Ltd | 0.00% | 31,510 | $531,574 | $416,247 | -$115,327 | -21.70% | |
| Squarepoint Ops Llc | 0.00% | 31,406 | $529,819 | $414,873 | -$114,946 | -21.70% | |
| Rhumbline Advisers | 0.00% | 30,648 | $517,025 | $404,860 | -$112,165 | -21.69% | |
| Citigroup Inc | 0.00% | 30,587 | $516,003 | $404,054 | -$111,949 | -21.70% |
Frequently asked questions about GENB
Who are the largest institutional holders of GENB?
The largest institutional holders of GENB reported in the latest SEC Form 13F filings include Flagship Pioneering, Llc, Fmr Llc, Capital World Investors, Braidwell Lp, and Price T Rowe Associates Inc. InsiderSet ranks institutional holders by their latest reported GENB position.
What is GENB institutional ownership?
This page tracks GENB positions reported by institutional investment managers through SEC Form 13F. Generate Biomedicines, Inc. (GENB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own GENB?
InsiderSet currently tracks 94 institutional managers reporting GENB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of GENB shareholders.
How much GENB stock do institutions own?
Institutional investment managers disclosed approximately $1.72B in GENB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was GENB institutional ownership last updated?
The latest GENB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional GENB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its GENB position after the reporting date.
Are institutions buying or selling GENB?
Institutional buying and selling can be analyzed by comparing GENB positions across consecutive 13F reporting periods. InsiderSet's GENB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View GENB ownership changes.
How has GENB institutional ownership changed over time?
InsiderSet tracks GENB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.