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Disclosery

QNTM QUANTUM BIOPHARMA LTD

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

15 managers (15 13F filers) reported a position in QNTM shares at 2025-03-31, 69,924 shares in all. 7 filers opened a position and 2 filers sold out during the quarter.

Managers
15
13F filers
15
New
7
Added
2
Reduced
3
Sold out
2
Shares held by filers
69,924

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, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, 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 LLC48,990$391K0.08%-20,08813F-HRTimeline
J.W. COLE ADVISORS, INC.12,590$97.1K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,195$24.6K<0.01%new13F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY2,532$19.5K<0.01%new13F-HRTimelineGroup
UBS Group AGin group UBS Group AG1,614$12.4K<0.01%new13F-HRTimelineGroup
THOMPSON INVESTMENT MANAGEMENT, INC.325$2.51K<0.01%new13F-HRTimeline
Cetera Trust Company, N.A250$1.93K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.157$1.21K<0.01%+5713F-HRTimeline
GROUP ONE TRADING LLC115$887<0.01%-1813F-HRTimeline
NATIONAL BANK OF CANADA /FI/in group NATIONAL BANK OF CANADA /FI/92$729<0.01%+5813F-HRTimelineGroup
Federation des caisses Desjardins du Qu…28$209<0.01%013F-HRTimeline
Activest Wealth Management15$116<0.01%new13F-HRTimeline
TD Waterhouse Canada Inc.2$16<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA19$00%-36013F-HR/ATimelineGroupValue filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

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