13F

Stock

Quantum Biopharma Ltd.

QNTM · held by 25 managers

Reported value

$860.9K

Holders

25

+2 new · −0 exited

Holders’ est. mark

−$2.25K

Price effect on 2 books still in the name

Largest holder

$362.3K

AdvisorShares Investments LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
AdvisorShares Investments LLC96.3K$362.3KHeld
Citadel15.9K$115.8KHeld
Marex Group plc13.4K$98.1KNew
GTS SECURITIES LLC12.3K$89.8KHeld
JANE STREET GROUP, LLC10.9K$79.5KHeld
OSAIC HOLDINGS, INC.5.27K$38.5KHeld
Steward Partners Investment Advisory, LLC4.38K$32KHeld
UBS Group AG1.71K$12.5KHeld
TUCKER ASSET MANAGEMENT LLC1.11K$8.13KNew
Farther Finance Advisors, LLC1K$7.3KHeld
Atlantic Union Bankshares Corp1K$7.3KHeld
JPMORGAN CHASE & CO577$4.21KHeld
Cetera Trust Company, N.A250$1.82KHeld
MORGAN STANLEY243$1.77K−$2.21KCut−$40.3K
Federation des caisses Desjardins du Quebec93$657Held
SBI Securities Co., Ltd.55$402Held
GROUP ONE TRADING LLC34$248Held
Rockefeller Capital Management L.P.30$219Held
Signature Equity Partners, LLC20$146Held
Activest Wealth Management15$110Held
Virtu Financial LLC10.4K$76Held
BANK OF AMERICA CORP /DE/4$29−$37Cut−$1.61K
Purpose Unlimited Inc.1$7Held
ROYAL BANK OF CANADA55$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.