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.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +1 vs. previous quarter
- 26
- 13F valueReported value at the end of Q2 2026
- $1.50M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding QNTM, Q2 2026
No superinvestor reported holding QNTM at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Quantum Biopharma Ltd. insiders from Form 4, newest first.
No open-market purchases or sales by Quantum Biopharma Ltd. insiders are on file.
Top 10 13F holders, Q2 2026
The largest institutional positions in Quantum Biopharma Ltd. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AdvisorShares Investments LLC | 203,564 | $736.9K | 0.09% | +94,973+87.5% | Added |
| Jane Street Group, LLC | 48,355 | $175.0K | 0.00% | +16,854+53.5% | Added |
| Platform Technology Partners | 41,116 | $148.8K | 0.02% | 00.0% | Unchanged |
| UBS Group AG | 33,405 | $120.9K | 0.00% | +26,168+361.6% | Added |
| Steward Partners Investment Advisory, LLC | 27,881 | $100.9K | 0.00% | +23,500+536.4% | Added |
| Citadel Advisors LLC | 15,863 | $57.4K | 0.00% | 00.0% | Unchanged |
| Marex Group plc | 13,436 | $48.6K | 0.00% | −32−0.2% | Reduced |
| Mariner, LLC | 10,000 | $36.2K | 0.00% | −59−0.6% | Reduced |
| NBC Securities, Inc. | 7,000 | $25.3K | 0.00% | +7,000 | New |
| Advisor Group Holdings, Inc. | 6,295 | $22.8K | 0.00% | −80−1.3% | Reduced |