Quantum Biopharma Ltd.
QNTM- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001771885
No open-market purchases or sales by Quantum Biopharma Ltd. insiders were filed in the last 90 days; 26 institutions reported holding it in 13F filings for Q2 2026, worth $1.50M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Quantum Biopharma Ltd. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 24
- +7 vs. Q3 2025
- Shares held
- 175.0K
- +107.2K (+158.1%) vs. Q3 2025
- Total value
- $936.8K
- +$41.3K (+4.6%) vs. Q3 2025
- New holders
- 9
- 4 more added
- Sold out
- 2
- 6 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting QNTM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 26 | $1.50M |
| Q1 2026 | 25 | $1.23M |
| Q4 2025 | 24 | $936.8K |
| Q3 2025 | 17 | $895.5K |
| Q2 2025 | 17 | $2.38M |
| Q1 2025 | 14 | $552.7K |
| Q4 2024 | 9 | $256.4K |
| Q3 2024 | 12 | $192.0K |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Quantum Biopharma Ltd.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AdvisorShares Investments LLC | 96,250 | $362.3K | 0.06% | +59,013+158.5% | Added |
| Citadel Advisors LLC | 15,863 | $115.8K | 0.00% | +15,863 | New |
| Marex Group plc | 13,436 | $98.1K | 0.00% | 00.0% | Unchanged |
| GTS Securities LLC | 12,300 | $89.8K | 0.00% | +12,300 | New |
| Jane Street Group, LLC | 10,892 | $79.5K | 0.00% | +10,892 | New |
| Virtu Financial LLC | 10,406 | $76.0K | 0.00% | +10,406 | New |
| Advisor Group Holdings, Inc. | 5,270 | $38.5K | 0.00% | +4,590+675.0% | Added |
| Steward Partners Investment Advisory, LLC | 4,381 | $32.0K | 0.00% | +1,281+41.3% | Added |
| UBS Group AG | 1,710 | $12.5K | 0.00% | −7,044−80.5% | Reduced |
| Tucker Asset Management LLC | 1,114 | $8.13K | 0.00% | +1,114 | New |
| Atlantic Union Bankshares Corp | 1,000 | $7.30K | 0.00% | +1,000 | New |
| Farther Finance Advisors, LLC | 1,000 | $7.30K | 0.00% | +1,000 | New |
| JPMorgan Chase & Co | 577 | $4.21K | 0.00% | −159−21.6% | Reduced |
| Cetera Trust Company, N.A | 250 | $1.82K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 243 | $1.77K | 0.00% | −2,321−90.5% | Reduced |
| Federation des caisses Desjardins du Quebec | 93 | $657 | 0.00% | +1+1.1% | Added |
| SBI Securities Co., Ltd. | 55 | $402 | 0.00% | −100−64.5% | Reduced |
| Group One Trading, L.P. | 34 | $248 | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 30 | $219 | 0.00% | 00.0% | Unchanged |
| Signature Equity Partners, LLC | 20 | $146 | 0.00% | +20 | New |
| Activest Wealth Management | 15 | $110 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 4 | $29 | 0.00% | −96−96.0% | Reduced |
| Purpose Unlimited Inc. | 1 | $7 | 0.00% | +1 | New |
| Royal Bank of Canada | 55 | $0 | 0.00% | −528−90.6% | Reduced |
| National Bank of Canada | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |