Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MRKR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | NEA Management Company, LLC | 1.6M | $2.1M | 0.0% | 15.056% | 0.12% |
| 2 | Blue Owl Capital Holdings LP | 554K | $721K | 0.0% | 5.133% | 0.19% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 389K | $506K | — | 3.606% | 0.00% |
| 4 | Aisling Capital Management LP | 325K | $423K | 0.0% | 3.013% | 0.09% |
| 5 | RENAISSANCE TECHNOLOGIES LLC | 175K | $228K | +41.8% | 1.623% | 0.00% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 161K | $209K | +23.4% | 1.490% | 0.00% |
| 7 | ADVISOR GROUP HOLDINGS, INC. | 93K | $121K | -1.4% | 0.862% | 0.00% |
| 8 | VANGUARD FIDUCIARY TRUST CO | 87K | $113K | — | 0.808% | 0.00% |
| 9 | LPL Financial LLC | 83K | $108K | -0.2% | 0.769% | 0.00% |
| 10 | XTX Topco Ltd | 64K | $83K | +9.5% | 0.589% | 0.00% |
| 11 | TWO SIGMA INVESTMENTS, LP | 61K | $79K | -37.8% | 0.565% | 0.00% |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 49K | $63K | — | 0.452% | 0.00% |
| 13 | JANE STREET GROUP, LLC | 36K | $47K | -10.4% | 0.336% | 0.00% |
| 14 | UBS Group AG | 32K | $42K | -81.4% | 0.300% | 0.00% |
| 15 | Invst, LLC | 29K | $38K | +7.4% | 0.269% | 0.00% |
| 16 | NORTHERN TRUST CORP | 26K | $34K | 0.0% | 0.241% | 0.00% |
| 17 | STATE STREET CORP | 21K | $27K | 0.0% | 0.194% | 0.00% |
| 18 | Creative Planning | 17K | $23K | 0.0% | 0.160% | 0.00% |
| 19 | Ashton Thomas Private Wealth, LLC | 16K | $21K | +64.0% | 0.152% | 0.00% |
| 20 | MATRIX ASSET ADVISORS INC/NY | 15K | $20K | 0.0% | 0.139% | 0.00% |
| 21 | TWO SIGMA SECURITIES, LLC | 11K | $15K | — | 0.106% | 0.00% |
| 22 | FIFTH THIRD BANCORP | 10K | $13K | 0.0% | 0.093% | 0.00% |
| 23 | Tower Research Capital LLC (TRC) | 3K | $4K | +339.4% | 0.029% | 0.00% |
| 24 | Vanguard Global Advisers, LLC | 3K | $3K | — | 0.023% | 0.00% |
| 25 | INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | 2K | $3K | 0.0% | 0.018% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MRKR — a direct measure of their conviction.
Filings activity in MRKR during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 35 | 2.8% | 33.95% | 6.37 pp | $5M | 16% |
| Q4 2025 | 36 | +13% | 40.32% | +19.71 pp | $6M | +96% |
| Q3 2025 | 32 | +3.2% | 20.61% | 14.19 pp | $3M | 41% |
| Q2 2025 | 31 | 3.1% | 34.80% | +1.78 pp | $5M | +5.4% |
| Q1 2025 | 32 | 5.9% | 33.02% | 166.97 pp | $5M | 90% |
| Q4 2024 | 34 | +17% | 199.99% | +163.33 pp | $49M | +801% |
| Q3 2024 | 29 | +0.0% | 36.66% | 31.44 pp | $5M | 46% |
| Q2 2024 | 29 | — | 68.10% | — | $10M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MRKR stock.
Based on Q1 2026 13F filings, institutional ownership of Marker Therapeutics, Inc. stands at 34.0%, held across 35 reporting institutions.
NEA Management Company, LLC is the largest reported institutional holder of MRKR, with approximately 1,625,678 shares worth $0.00B as of Q1 2026.
Yes — 5 widely-followed marquee investors appear among the top 25 institutional holders of MRKR, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, JANE STREET GROUP, LLC, TWO SIGMA SECURITIES, LLC.
Our composite Smart Money Score for MRKR is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
8 institutions opened new positions in MRKR during Q1 2026, while 9 fully exited. 4 added to existing positions and 23 trimmed.
MRKR institutional ownership fell by 6.37 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 91.4% of all reported 13F value in MRKR, 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.
Marker Therapeutics, Inc. (MRKR) Institutional Ownership