Institutional Ownership
Quantum Biopharma Ltd
CUSIP 74764Y205CL B SUB VTG SHSQNTMQ1 2026
13D / 13G Filings
12
Schedule 13D/13G on record
Beneficial Filers
1
Distinct reporting persons
Largest Stake
27.4%
Max % of class reported
Institutional Holders
25
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
12 filings · latest Feb 3, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 3, 2026 | Malone Wealth Ventures LLC | 13G/A | 9.8% | 375.8K | SEC |
| 2 | Sep 4, 2025 | Malone Wealth Ventures LLC | 13G/A | 27.4% | 1.05M | SEC |
| 3 | Jul 18, 2025 | Malone Wealth Ventures LLC | 13G/A | 21.8% | 829.7K | SEC |
| 4 | Jul 10, 2025 | Malone Wealth Ventures LLC | 13G/A | 19.4% | 735.1K | SEC |
| 5 | Jul 10, 2025 | Malone Wealth Ventures LLC | 13G/A | 19.9% | 735.1K | SEC |
| 6 | Jul 10, 2025 | Malone Wealth Ventures LLC | 13G/A | 19.9% | 735.1K | SEC |
| 7 | Jun 30, 2025 | Malone Wealth Ventures LLC | 13G/A | 19.9% | 689.4K | SEC |
| 8 | Jun 23, 2025 | Malone Wealth Ventures LLC | 13D/A | 17.8% | — | SEC |
| 9 | Jun 23, 2025 | Malone Wealth Ventures LLC | 13D/A | 17.0% | — | SEC |
| 10 | Jun 16, 2025 | Malone Wealth Ventures LLC | 13D/A | 14.8% | — | SEC |
2 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Quantum Biopharma Ltd.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Advisorshares Investments LLC | 108.6K | $524.5K |
| 2 | Platform Technology Partners | 41.1K | $198.6K |
| 3 | Jane Street Group, LLC | 31.5K | $152.1K |
| 4 | Citadel Advisors LLC | 15.9K | $76.6K |
| 5 | Marex Group PLC | 13.5K | $65.0K |
| 6 | Mariner, LLC | 10.1K | $48.6K |
| 7 | Ubs Group AG | 7.2K | $35.0K |
| 8 | Osaic Holdings, Inc. | 6.4K | $30.8K |
| 9 | Steward Partners Investment Advisory, LLC | 4.4K | $21.2K |
| 10 | Atlantic Union Bankshares Corp | 1.0K | $4.8K |