SELLAS Life Sciences Group, Inc.
SLS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001390478
No open-market purchases or sales by SELLAS Life Sciences Group, Inc. insiders were filed in the last 90 days; 193 institutions reported holding it in 13F filings for Q2 2026, worth $1.08B in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in SELLAS Life Sciences Group, Inc. as of Mar 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
- 45
- +14 vs. Q4 2024
- Shares held
- 14.3M
- +8.09M (+130.1%) vs. Q4 2024
- Total value
- $15.5M
- +$8.99M (+139.0%) vs. Q4 2024
- New holders
- 18
- 18 more added
- Sold out
- 4
- 3 more reduced
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SLS 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 | 193 | $1.08B |
| Q1 2026 | 160 | $228.4M |
| Q4 2025 | 112 | $133.7M |
| Q3 2025 | 94 | $53.1M |
| Q2 2025 | 79 | $58.7M |
| Q1 2025 | 45 | $15.5M |
| Q4 2024 | 31 | $6.47M |
| Q3 2024 | 33 | $6.77M |
| Q2 2024 | 30 | $4.86M |
| Q1 2024 | 30 | $7.82M |
| Q4 2023 | 31 | $3.74M |
| Q3 2023 | 28 | $4.54M |
| Q2 2023 | 25 | $4.91M |
| Q1 2023 | 22 | $4.28M |
| Q4 2022 | 29 | $4.46M |
| Q3 2022 | 28 | $4.42M |
| Q2 2022 | 26 | $6.64M |
| Q1 2022 | 26 | $11.3M |
| Q4 2021 | 27 | $10.1M |
| Q3 2021 | 30 | $17.1M |
| Q2 2021 | 29 | $21.3M |
| Q1 2021 | 31 | $13.3M |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Anson Funds Management LP | 7,579,095 | $8.19M | 1.96% | +6,386,829+535.7% | Added |
| Vanguard Group Inc | 2,839,318 | $3.07M | 0.00% | +546,461+23.8% | Added |
| Geode Capital Management, LLC | 820,440 | $886.4K | 0.00% | +86,894+11.8% | Added |
| Susquehanna International Group, LLP | 688,696 | $743.8K | 0.00% | +688,696 | New |
| BlackRock, Inc. | 538,460 | $581.5K | 0.00% | +94,252+21.2% | Added |
| Citadel Advisors LLC | 349,505 | $377.5K | 0.00% | −135,812−28.0% | Reduced |
| State Street Corp | 277,029 | $299.2K | 0.00% | +49,300+21.6% | Added |
| Opus Capital Group, LLC | 239,500 | $259.0K | 0.03% | +1,000+0.4% | Added |
| Northern Trust Corp | 164,390 | $177.5K | 0.00% | +29,669+22.0% | Added |
| Morgan Stanley | 66,450 | $71.8K | 0.00% | +50,672+321.2% | Added |
| LPL Financial LLC | 65,744 | $71.0K | 0.00% | +13,850+26.7% | Added |
| Atom Investors LP | 64,216 | $69.4K | 0.01% | +64,216 | New |
| UBS Group AG | 62,231 | $67.2K | 0.00% | −65,590−51.3% | Reduced |
| Jane Street Group, LLC | 58,541 | $63.2K | 0.00% | +46,237+375.8% | Added |
| Virtu Financial LLC | 53,861 | $58.0K | 0.00% | +12,706+30.9% | Added |
| Mariner, LLC | 51,200 | $55.3K | 0.00% | +591+1.2% | Added |
| Two Sigma Investments, LP | 48,287 | $52.1K | 0.00% | +48,287 | New |
| Renaissance Technologies LLC | 34,892 | $37.7K | 0.00% | +34,892 | New |
| Jain Global LLC | 27,400 | $29.6K | 0.00% | +27,400 | New |
| Independent Financial Group, LLC | 23,250 | $25.1K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 22,727 | $25.0K | 0.00% | +22,727 | New |
| Tower Research Capital LLC (TRC) | 20,889 | $22.6K | 0.00% | +15,584+293.8% | Added |
| Hudson Bay Capital Management LP | 20,660 | $22.3K | 0.00% | +20,660 | New |
| Quadrature Capital Ltd | 20,673 | $22.2K | 0.00% | +20,673 | New |
| Prosperity Financial Group, Inc. | 16,500 | $17.8K | 0.01% | +5,000+43.5% | Added |
| Charles Schwab Investment Management Inc | 16,238 | $17.5K | 0.00% | 00.0% | Unchanged |
| Grange Capital, LLC | 13,501 | $14.6K | 0.02% | +13,501 | New |
| Two Sigma Securities, LLC | 12,969 | $14.0K | 0.00% | +12,969 | New |
| Royal Bank of Canada | 13,125 | $14.0K | 0.00% | +12,925+6,462.5% | Added |
| Schonfeld Strategic Advisors LLC | 12,481 | $13.5K | 0.00% | +12,481 | New |
| Equitable Holdings, Inc. | 12,060 | $13.0K | 0.00% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 12,154 | $13.0K | 0.00% | +100+0.8% | Added |
| Marshall Wace, LLP | 11,482 | $12.4K | 0.00% | +11,482 | New |
| Calton & Associates, Inc. | 11,000 | $11.9K | 0.00% | +11,000 | New |
| Brooklyn FI, LLC | 10,140 | $11.0K | 0.00% | +10,140 | New |
| Nemes Rush Group LLC | 10,000 | $10.8K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 10,000 | $10.8K | 0.00% | +10,000 | New |
| SBI Securities Co., Ltd. | 5,428 | $5.86K | 0.00% | −36−0.7% | Reduced |
| Wells Fargo & Company | 3,003 | $3.24K | 0.00% | +3,003 | New |
| Advisor Group Holdings, Inc. | 2,660 | $2.87K | 0.00% | +1,000+60.2% | Added |
| Bank of America Corp | 622 | $672 | 0.00% | +50+8.7% | Added |
| Jones Financial Companies LLLP | 374 | $415 | 0.00% | 00.0% | Unchanged |
| Caldwell Sutter Capital, Inc. | 100 | $108 | 0.00% | +100 | New |
| Parkside Financial Bank & Trust | 2 | $3 | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 573 | $0 | 0.00% | +573 | New |
| XTX Topco Ltd | 0 | $0 | 0.00% | −53,426−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −15,683−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −2,197−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |