Quantum Biopharma Ltd. (QNTM)
Nasdaq: QNTM · Pharmaceutical Preparations · Toronto · filing with the SEC since 2019
Who owns Quantum Biopharma Ltd.
As filed with the SECHolders of 5% or more
1
Malone Wealth Ventures LLC holds 9.8% of Common Stock, as its SCHEDULE 13G/A filed Feb 3, 2026 says.
Directors and officers
0
report now, of 0 people on the record since . Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 1 named at left.
Holders of 5% or moreshare of the class, as filed
Malone Wealth Ventures LLC
SCHEDULE 13G/A · filed Feb 3, 2026 · Common Stock · 27.4% in Sep 4, 2025
AdvisorShares Trust
SCHEDULE 13G/A · filed Oct 5, 2026 · Class B Subordinate Voting Shares, no par value · reported falling below 5%, from 5.33% in Jul 8, 2026
What QNTM reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Meridian
An investee · associate · invested in, named in the 20-F filed Mar 26, 2026
Royal Bank of Canada
An investee · associate · invested in, named in the 20-F filed Mar 26, 2026
8 subsidiaries in 3 countries, from the list filed with the 20-F filed Mar 26, 2026.
Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
No open-market trade is on the record for these years.
Dollars as filed, summed by the transaction date.
People who traded in the window
No one on the roster filed an open-market trade in the window.