Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in QNTM held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | AdvisorShares Investments LLC | 109K | $524K | +118.8% | 2.419% | 0.10% |
| 2 | Platform Technology Partners | 41K | $199K | β | 0.916% | 0.04% |
| 3 | JANE STREET GROUP, LLC | 32K | $152K | +189.2% | 0.702% | 0.00% |
| 4 | CITADEL ADVISORS LLC | 16K | $77K | 0.0% | 0.353% | 0.00% |
| 5 | Marex Group plc | 13K | $65K | +0.2% | 0.300% | 0.00% |
| 6 | Mariner, LLC | 10K | $49K | β | 0.224% | 0.00% |
| 7 | UBS Group AG | 7K | $35K | +323.2% | 0.161% | 0.00% |
| 8 | ADVISOR GROUP HOLDINGS, INC. | 6K | $31K | +21.0% | 0.142% | 0.00% |
| 9 | Steward Partners Investment Advisory, LLC | 4K | $21K | 0.0% | 0.098% | 0.00% |
| 10 | Atlantic Union Bankshares Corp | 1K | $5K | 0.0% | 0.022% | 0.00% |
| 11 | Farther Finance Advisors, LLC | 1K | $4K | 0.0% | 0.022% | 0.00% |
| 12 | JONES FINANCIAL COMPANIES LLLP | 700 | $3K | β | 0.016% | 0.00% |
| 13 | Cetera Trust Company, N.A | 250 | $1K | 0.0% | 0.006% | 0.00% |
| 14 | WELLS FARGO & COMPANY/MN | 100 | $477 | β | 0.002% | 0.00% |
| 15 | Federation des caisses Desjardins du Quebec | 93 | $369 | 0.0% | 0.002% | 0.00% |
| 16 | SBI Securities Co., Ltd. | 75 | $362 | +36.4% | 0.002% | 0.00% |
| 17 | Tower Research Capital LLC (TRC) | 71 | $343 | β | 0.002% | 0.00% |
| 18 | GROUP ONE TRADING, L.P. | 34 | $164 | 0.0% | 0.001% | 0.00% |
| 19 | Rockefeller Capital Management L.P. | 30 | $145 | 0.0% | 0.001% | 0.00% |
| 20 | NATIONAL BANK OF CANADA /FI/ | 20 | $93 | β | 0.000% | 0.00% |
| 21 | TD Waterhouse Canada Inc. | 20 | $88 | β | 0.000% | 0.00% |
| 22 | Activest Wealth Management | 15 | $72 | 0.0% | 0.000% | 0.00% |
| 23 | Virtu Financial LLC | 12K | $59 | +18.0% | 0.274% | 0.00% |
| 24 | Purpose Unlimited Inc. | 1 | $4 | β | 0.000% | 0.00% |
| 25 | ROYAL BANK OF CANADA | 19 | $0 | -65.5% | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in QNTM β a direct measure of their conviction.
Filings activity in QNTM during Q1 2026, grouped by how each filer changed its position.
7 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 25 | +8.7% | 6.80% | +1.79 pp | $1M | +36% |
| Q4 2025 | 23 | +35% | 5.01% | 0.20 pp | $1M | 3.9% |
| Q3 2025 | 17 | 5.6% | 5.21% | 6.64 pp | $1M | 56% |
| Q2 2025 | 18 | +20% | 11.85% | +8.63 pp | $2M | +269% |
| Q1 2025 | 15 | +50% | 3.22% | +1.73 pp | $1M | +116% |
| Q4 2024 | 10 | 23% | 1.49% | +0.87 pp | $0M | +142% |
| Q3 2024 | 13 | β | 0.62% | β | $0M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying QNTM stock.
Based on Q1 2026 13F filings, institutional ownership of Quantum BioPharma Ltd. stands at 6.8%, held across 25 reporting institutions.
AdvisorShares Investments LLC is the largest reported institutional holder of QNTM, with approximately 108,591 shares worth $0.00B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of QNTM, including JANE STREET GROUP, LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for QNTM is 67 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
8 institutions opened new positions in QNTM during Q1 2026, while 6 fully exited. 3 added to existing positions and 13 trimmed.
QNTM institutional ownership rose by 1.79 percentage points quarter-over-quarter, with a net change of +2 holders.
The top 10 institutions account for 99.0% of all reported 13F value in QNTM, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Quantum BioPharma Ltd. (QNTM) Institutional Ownership