QNTM
Quantum Biopharma Ltd.Company with tickers: QNTM
CIK
1771885
CUSIP
74764Y205
Shares Outstanding
6,398,605
Website
https://www.quantumbiopharma.com
Investor Relations
https://www.quantumbiopharma.com/investors
13F Activity (30d)
9 filings
9 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 20
Total Value: $963,968
Total Shares: 199,581
Institutional Ownership Trend
12 quarters
Holder Concentration
Across 20 13F filersTop Holder
54.4%
of institutional value
Top 5
93.0%
of institutional value
Top 10
99.7%
of institutional value
HHI
3,509
Highly concentrated
Quarterly Activity
vs Feb 3, 2026
New
20
Increased
0
Decreased
0
Sold Out
1
Unchanged
0
Holder count:
+19
Institutional value:
-36.3%
Shares held:
-46.9%
Top New Positions
vs Feb 3, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Small AdvisorShares Investments LLC | 108,591 | $524,494 | |
| Small Platform Technology Partners | 41,116 | $198,590 | |
| Large Marex Group plc | 13,468 | $65,050 | |
| Mid Virtu Financial LLC | 12,282 | $59,322 | |
| Large Mariner, LLC | 10,059 | $48,584 |
Top Sold-Out Positions
vs Feb 3, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| — Malone Wealth Ventures LLC | 375,752 | $1,514,280 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Small AdvisorShares Investments LLC | $524,494 | 54.41% | 108,591 | Shares | Sole | 2026-04-28 | ||||
| Small Platform Technology Partners | $198,590 | 20.60% | 41,116 | Shares | Sole | 2026-04-27 | ||||
| Large Marex Group plc | $65,050 | 6.75% | 13,468 | Shares | Defined | 2026-05-13 | ||||
| Mid Virtu Financial LLC | $59,322 | 6.15% | 12,282 | Shares | Defined | 2026-05-14 | ||||
| Large Mariner, LLC | $48,584 | 5.04% | 10,059 | Shares | Sole | 2026-05-13 | ||||
| Large OSAIC HOLDINGS, INC. | $30,791 | 3.19% | 6,375 | Shares | Defined | 2026-05-15 | ||||
| Large Steward Partners Investment Advisory, LLC | $21,160 | 2.20% | 4,381 | Shares | Sole | 2026-05-08 | ||||
| Mid Atlantic Union Bankshares Corp | $4,830 | 0.50% | 1,000 | Shares | Sole | 2026-05-12 | ||||
| Mid Farther Finance Advisors, LLC | $4,830 | 0.50% | 1,000 | Shares | Sole | 2026-04-07 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $3,381 | 0.35% | 700 | Shares | Sole | 2026-05-15 | ||||
| Small Cetera Trust Company, N.A Bank | $1,207 | 0.13% | 250 | Shares | Sole | 2026-05-08 | ||||
| Large Federation des caisses Desjardins du Quebec | $449 | 0.05% | 93 | Shares | Defined | 2026-05-14 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $362 | 0.04% | 75 | Shares | Defined | 2026-04-28 | ||||
| Mid Tower Research Capital LLC (TRC) | $342 | 0.04% | 71 | Shares | Other | 2026-05-15 | ||||
| Mid GROUP ONE TRADING LLC | $164 | 0.02% | 34 | Shares | Sole | 2026-05-13 | ||||
| Large Rockefeller Capital Management L.P. | $144 | 0.01% | 30 | Shares | Defined | 2026-05-14 | ||||
| Large NATIONAL BANK OF CANADA /FI/ Bank | $96 | 0.01% | 20 | Shares | Defined | 2026-05-15 | ||||
| Large TD Waterhouse Canada Inc. | $96 | 0.01% | 20 | Shares | Defined | 2026-05-12 | ||||
| Small Activest Wealth Management | $72 | 0.01% | 15 | Shares | Sole | 2026-04-15 | ||||
| Mid Purpose Unlimited Inc. | $4 | 0.00% | 1 | Shares | Sole | 2026-05-15 | ||||
| No holders match your search. | ||||||||||