13F

Stock

Q32 Bio Inc.

QTTB · held by 52 managers

Reported value

$26.4M

Holders

52

+0 new · −0 exited

Holders’ est. mark

$8.89K

Price effect on 5 books still in the name

Largest holder

$7.48M

ORBIMED ADVISORS LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
ORBIMED ADVISORS LLC2.25M$7.48MHeld
Atlas Venture Life Science Advisors, LLC2.09M$6.95MHeld
Carlyle Group Inc.1.1M$3.62MHeld
ACORN CAPITAL ADVISORS, LLC493.4K$1.64MHeld
Vanguard321.1K$1.07MHeld
ARCH Venture Management, LLC320.5K$1.06MHeld
Pfizer Inc277.8K$922.2KHeld
Sanofi244.1K$810.4KHeld
Opaleye Management Inc.213.4K$708.4KHeld
GEODE CAPITAL MANAGEMENT, LLC106.1K$352.4KHeld
Renaissance Technologies99.6K$330.7KHeld
BlackRock, Inc.59.9K$199KHeld
MILLENNIUM MANAGEMENT LLC51.3K$170.2KHeld
Monaco Asset Management SAM50.9K$169.1KHeld
TWO SIGMA INVESTMENTS, LP46.8K$155.5KHeld
Citadel45.7K$151.8KHeld
Affinity Asset Advisors, LLC27.8K$92.2KHeld
JANE STREET GROUP, LLC25.4K$84.2KHeld
NORTHERN TRUST CORP25K$83.1KHeld
State Street21.2K$70.5KHeld
XTX Topco Ltd20.4K$67.6KHeld
ADAR1 Capital Management, LLC20K$66.4KHeld
Scientech Research LLC15.5K$51.5KHeld
UBS Group AG13.6K$45.2KHeld
MORGAN STANLEY5.48K$18.2K$7.34KCut−$4.27K
EverSource Wealth Advisors, LLC4.64K$15.4KHeld
Fidelity3.36K$11.2KHeld
FEDERATED HERMES, INC.2.27K$7.55KHeld
Global Retirement Partners, LLC1.5K$4.98KHeld
Arax Advisory Partners1.11K$3.69KHeld
BANK OF AMERICA CORP /DE/1.03K$3.44K$1.39KAdded$416
Tower Research Capital LLC (TRC)976$3.24KHeld
Rockefeller Capital Management L.P.577$1.92KHeld
JONES FINANCIAL COMPANIES LLLP500$1.66KHeld
Russell Investments Group, Ltd.454$1.51KHeld
JPMORGAN CHASE & CO324$1.08KHeld
BNP PARIBAS FINANCIAL MARKETS308$1.02KHeld
ROYAL BANK OF CANADA235$1KHeld
NISA INVESTMENT ADVISORS, LLC166$551Held
SBI Securities Co., Ltd.157$521Held
OSAIC HOLDINGS, INC.132$437Held
Allworth Financial LP98$326$132Cut−$882
Federation des caisses Desjardins du Quebec70$231Held
ACADIAN ASSET MANAGEMENT LLC48.4K$159Held
GROUP ONE TRADING LLC34$113Held
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO30$100Held
HRT FINANCIAL LP24.7K$81Held
BARCLAYS PLC19$63$25Cut−$1.56K
HARBOUR INVESTMENTS, INC.11$37Held
AdvisorNet Financial, Inc2$7Held
DANSKE BANK A/S1$3$2Added$2
CWM, LLC54$0Held

Positions as of Q4 2025. 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.