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Disclosery

QNTM QUANTUM BIOPHARMA LTD

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CL B SUB VTG SHS (common), issuer CIK 1771885

17 managers (17 13F filers) reported a position in QNTM shares at 2025-09-30, 67,792 shares in all. 4 filers opened a position and 4 filers sold out during the quarter.

Managers
17
13F filers
17
New
4
Added
5
Reduced
3
Sold out
4
Shares held by filers
67,792

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

  • AdvisorShares Trust
    400,378 shares, 4.95% in a 13G/A as of 2026-09-30,0000929638-26-003843
    Accepted , ingested

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
AdvisorShares Investments LLC37,237$611K0.1%+24713F-HRTimeline
UBS Group AGin group UBS Group AG8,754$144K<0.01%-37,12913F-HRTimelineGroup
Steward Partners Investment Advisory, L…3,100$50.8K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY2,564$42K<0.01%+2,43313F-HR/ATimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO736$12.1K<0.01%-16113F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.680$11.4K<0.01%+60013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA583$10K<0.01%+50113F-HRTimelineGroup
Cetera Trust Company, N.A250$4.1K<0.01%013F-HRTimeline
Marex Group Ltdin group Marex Group Ltd13,436$3.38K<0.01%new13F-HRTimelineGroup
SBI Securities Co., Ltd.155$2.54K<0.01%013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/100$1.64K<0.01%new13F-HR/ATimelineGroup
Federation des caisses Desjardins du Qu…92$1.49K<0.01%+6413F-HRTimeline
GROUP ONE TRADING LLC34$558<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…30$492<0.01%new13F-HRTimelineGroup
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/24$393<0.01%new13F-HRTimelineGroup
Activest Wealth Management15$246<0.01%013F-HRTimeline
TD Waterhouse Canada Inc.2$33<0.01%-113F-HRTimeline

Events

  • AdvisorShares Trust reported 400,378 QNTM shares, 4.95% of the class, as of 2026-09-30, in a 13G/A filed 2026-10-05. 0000929638-26-003843

    Accepted , ingested