13F

Stock

Generate Biomedicines, Inc.

GENB · held by 57 managers

Reported value

$1.13B

Holders

57

+54 new · −0 exited

Holders’ est. mark

Need a prior quarter

Largest holder

$783.4M

Flagship Pioneering, LLC

Notable conviction

Share of each notable manager’s 13F book.

Who holds it

Notable only
InvestorSharesValueEst. markChange
Flagship Pioneering, LLC62.7M$783.4MNew
Fidelity4.22M$52.7MNew
Capital World Investors4M$50.1MNew
BRAIDWELL LP3.59M$44.9MNew
JPMORGAN CHASE & CO2.95M$33.9MNew
ARCH Venture Management, LLC1.94M$24.3MNew
HarbourVest Partners LLC1.72M$21.5MNew
BAKER BROS. ADVISORS LP1.42M$17.8MNew
HARVARD MANAGEMENT CO INC1.11M$13.9MNew
NVIDIA CORP833.3K$10.4MNew
Siren, L.L.C.736.1K$9.2MNew
Davern Capital Partners, LP591.8K$7.4MNew
Alyeska Investment Group, L.P.500K$6.25MNew
ARK Investment Management LLC498.4K$6.23MNew
MILLENNIUM MANAGEMENT LLC376.9K$4.71MNew
UBS Group AG356.7K$4.46MNew
Affinity Asset Advisors, LLC350K$4.38MNew
MORGAN STANLEY337.3K$4.22MNew
ExodusPoint Capital Management, LP312K$3.9MNew
CenterBook Partners LP266.8K$3.34MNew
SPHERA FUNDS MANAGEMENT LTD.185K$2.31MNew
GOLDMAN SACHS GROUP INC170.7K$2.13MNew
VANGUARD CAPITAL MANAGEMENT LLC131.3K$1.64MHeld
SEVEN GRAND MANAGERS, LLC125K$1.56MNew
JANE STREET GROUP, LLC123.4K$1.54MNew
GEODE CAPITAL MANAGEMENT, LLC118.2K$1.48MNew
LMR Partners LLP100K$1.25MNew
SILVERARC CAPITAL MANAGEMENT, LLC100K$1.25MNew
D. E. Shaw & Co., Inc.95K$1.19MNew
AMERIPRISE FINANCIAL INC87.3K$1.09MNew
Balyasny Asset Management L.P.79.5K$993.6KNew
MANUFACTURERS LIFE INSURANCE COMPANY, THE74.3K$928.9KNew
BARCLAYS PLC70.9K$886.2KNew
Qube Research & Technologies Ltd50.2K$627.8KNew
TD Asset Management Inc42.9K$535.8KNew
Sumitomo Mitsui Trust Group, Inc.40.3K$504.3KNew
Amova Asset Management Americas, Inc.40.3K$499.5KNew
Squarepoint Ops LLC37.2K$465KNew
BANK OF AMERICA CORP /DE/34.2K$427.4KNew
FEDERATED HERMES, INC.30K$375KNew
TUDOR INVESTMENT CORP ET AL23.8K$297.9KNew
IQ EQ FUND MANAGEMENT (IRELAND) Ltd19.2K$240KNew
Y-Intercept (Hong Kong) Ltd18.4K$229.5KNew
VANGUARD FIDUCIARY TRUST CO17.5K$218.2KHeld
Hudson Bay Capital Management LP16.7K$208.5KNew
Diametric Capital, LP10.5K$131.2KNew
Parallel Advisors, LLC5.55K$69.4KNew
ALBION FINANCIAL GROUP /UT4.85K$60.7KNew
CITIGROUP INC2.24K$28.1KNew
PRICE T ROWE ASSOCIATES INC /MD/2.11M$26.4KNew
Vanguard Global Advisers, LLC1.23K$15.3KHeld
WELLS FARGO & COMPANY/MN1.2K$15KNew
ROYAL BANK OF CANADA231$3KNew
HRT FINANCIAL LP58.8K$734New
FNY Investment Advisers, LLC3K$37New
Tower Research Capital LLC (TRC)1$12New
Avion Wealth100$1New

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.