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, Q4 2025
Institutional positions in SELLAS Life Sciences Group, Inc. 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
- 112
- +19 vs. Q3 2025
- Shares held
- 35.5M
- +2.53M (+7.7%) vs. Q3 2025
- Total value
- $133.7M
- +$80.7M (+152.2%) vs. Q3 2025
- New holders
- 28
- 50 more added
- Sold out
- 9
- 18 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 8,467,400 | $31.9M | 0.00% | +1,627,495+23.8% | Added |
| BlackRock, Inc. | 7,541,054 | $28.4M | 0.00% | +1,854,168+32.6% | Added |
| Geode Capital Management, LLC | 3,077,337 | $11.6M | 0.00% | +812,953+35.9% | Added |
| State Street Corp | 2,188,171 | $8.25M | 0.00% | +827,257+60.8% | Added |
| Millennium Management LLC | 1,387,849 | $5.23M | 0.00% | +1,073,147+341.0% | Added |
| Marshall Wace, LLP | 1,340,668 | $5.05M | 0.00% | −1,017,331−43.1% | Reduced |
| Two Sigma Investments, LP | 1,082,207 | $4.08M | 0.01% | +936,351+642.0% | Added |
| Nuveen, LLC | 1,023,961 | $3.86M | 0.00% | +26,051+2.6% | Added |
| Northern Trust Corp | 930,750 | $3.51M | 0.00% | +199,575+27.3% | Added |
| Morgan Stanley | 890,929 | $3.36M | 0.00% | −163,862−15.5% | Reduced |
| DAGCO, Inc. | 577,540 | $2.18M | 0.50% | +577,540 | New |
| Barclays PLC | 511,034 | $1.93M | 0.00% | +328,354+179.7% | Added |
| Clear Street Group Inc. | 500,000 | $1.89M | 0.01% | +500,000 | New |
| Everhart Financial Group, Inc. | 466,216 | $1.76M | 0.16% | +135,066+40.8% | Added |
| Jones Financial Companies LLLP | 429,243 | $1.62M | 0.00% | +428,869+114,670.9% | Added |
| Goldman Sachs Group Inc | 411,654 | $1.55M | 0.00% | +392,389+2,036.8% | Added |
| Charles Schwab Investment Management Inc | 408,401 | $1.54M | 0.00% | +114,295+38.9% | Added |
| Susquehanna International Group, LLP | 349,755 | $1.32M | 0.00% | −513,820−59.5% | Reduced |
| Gsa Capital Partners LLP | 345,052 | $1.30M | 0.11% | −173,943−33.5% | Reduced |
| Opus Capital Group, LLC | 317,100 | $1.20M | 0.13% | +67,100+26.8% | Added |
| Wells Fargo & Company | 299,305 | $1.13M | 0.00% | +223,438+294.5% | Added |
| Bank of New York Mellon Corp | 256,409 | $966.7K | 0.00% | +50,727+24.7% | Added |
| Mariner, LLC | 159,150 | $600.0K | 0.00% | +50,344+46.3% | Added |
| Rhumbline Advisers | 129,309 | $487.5K | 0.00% | −7,330−5.4% | Reduced |
| XTX Topco Ltd | 118,440 | $446.5K | 0.01% | +118,440 | New |
| Bank of America Corp | 100,935 | $380.5K | 0.00% | +58,785+139.5% | Added |
| LPL Financial LLC | 96,305 | $363.1K | 0.00% | +25,266+35.6% | Added |
| Deutsche Bank AG | 91,688 | $345.7K | 0.00% | −29,337−24.2% | Reduced |
| Two Sigma Advisers, LP | 76,554 | $288.6K | 0.00% | +76,554 | New |
| Price T Rowe Associates Inc | 63,026 | $238.0K | 0.00% | +15,067+31.4% | Added |
| Stoneridge Investment Partners LLC | 61,327 | $231.0K | 0.16% | +7,618+14.2% | Added |
| Jane Street Group, LLC | 59,536 | $224.5K | 0.00% | −43,423−42.2% | Reduced |
| Instrumental Wealth, LLC | 44,914 | $221.0K | 0.13% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 57,547 | $217.0K | 0.00% | +12,900+28.9% | Added |
| Two Sigma Securities, LLC | 57,105 | $215.3K | 0.03% | +57,105 | New |
| Citigroup Inc | 55,475 | $209.1K | 0.00% | +51,201+1,198.0% | Added |
| Caitong International Asset Management Co., Ltd | 55,129 | $207.8K | 0.05% | +44,296+408.9% | Added |
| Invesco Ltd. | 53,293 | $200.9K | 0.00% | +3,114+6.2% | Added |
| Northstar Asset Management LLC | 50,000 | $188.5K | 0.04% | +9,680+24.0% | Added |
| Alliancebernstein L.P. | 49,960 | $188.3K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 49,479 | $186.5K | 0.00% | +8,757+21.5% | Added |
| UBS Group AG | 48,727 | $183.7K | 0.00% | −36,262−42.7% | Reduced |
| Fulcrum Wealth Advisors, LLC | 48,664 | $183.5K | 0.15% | +48,664 | New |
| Pensionmark Financial Group, LLC | 44,123 | $166.3K | 0.00% | +44,123 | New |
| Intech Investment Management LLC | 40,272 | $151.8K | 0.00% | −6,081−13.1% | Reduced |
| Scientech Research LLC | 38,743 | $146.1K | 0.09% | +38,743 | New |
| Manufacturers Life Insurance Company, The | 38,018 | $143.3K | 0.00% | +4,564+13.6% | Added |
| Tyche Wealth Partners LLC | 37,500 | $141.4K | 0.02% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 36,450 | $137.0K | 0.00% | +17,084+88.2% | Added |
| Visionary Horizons, LLC | 36,000 | $135.7K | 0.07% | +36,000 | New |
| Regal Investment Advisors LLC | 35,900 | $135.3K | 0.01% | +35,900 | New |
| Axxcess Wealth Management, LLC | 35,370 | $133.3K | 0.00% | +19,370+121.1% | Added |
| Police & Firemen's Retirement System of New Jersey | 34,743 | $131.0K | 0.00% | +11,392+48.8% | Added |
| Equitable Holdings, Inc. | 32,060 | $120.9K | 0.00% | +5,000+18.5% | Added |
| Genesee Capital Advisors, LLC | 30,000 | $113.1K | 0.05% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 29,244 | $110.2K | 0.00% | +13,390+84.5% | Added |
| Kestra Advisory Services, LLC | 27,400 | $103.3K | 0.00% | +1,000+3.8% | Added |
| Scissortail Wealth Management, LLC | 27,322 | $103.0K | 0.02% | 00.0% | Unchanged |
| MetLife Investment Management | 27,181 | $102.5K | 0.00% | −12,792−32.0% | Reduced |
| BNP Paribas Arbitrage, SA | 26,838 | $101.2K | 0.00% | +7,114+36.1% | Added |
| SEI Investments Co | 26,581 | $100.2K | 0.00% | 00.0% | Unchanged |
| Blair William & Co | 26,002 | $98.0K | 0.00% | +10,000+62.5% | Added |
| Millington Financial Advisors, LLC | 25,000 | $93.3K | 0.04% | +25,000 | New |
| Jaffetilchin Investment Partners, LLC | 24,338 | $91.8K | 0.01% | +24,338 | New |
| Trustmark National Bank Trust Department | 24,000 | $90.5K | 0.01% | −12,511−34.3% | Reduced |
| Advisor Group Holdings, Inc. | 23,689 | $89.3K | 0.00% | +16,029+209.3% | Added |
| Independent Financial Group, LLC | 23,250 | $87.7K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 22,638 | $85.3K | 0.00% | +5,417+31.5% | Added |
| Voya Investment Management LLC | 21,034 | $79.3K | 0.00% | +3,590+20.6% | Added |
| Simon Quick Advisors, LLC | 20,000 | $75.4K | 0.00% | 00.0% | Unchanged |
| Private Advisor Group, LLC | 18,205 | $68.6K | 0.00% | +18,205 | New |
| Victory Capital Management Inc | 16,351 | $61.6K | 0.00% | +4,481+37.8% | Added |
| Grange Capital, LLC | 16,001 | $60.3K | 0.06% | +2,500+18.5% | Added |
| ELCO Management Co., LLC | 14,609 | $55.1K | 0.03% | +600+4.3% | Added |
| Boothbay Fund Management, LLC | 13,800 | $52.0K | 0.00% | +13,800 | New |
| Squarepoint Ops LLC | 13,285 | $50.1K | 0.00% | −32,895−71.2% | Reduced |
| Stifel Financial Corp | 13,036 | $49.1K | 0.00% | +13,036 | New |
| Legal & General Group Plc | 13,032 | $49.1K | 0.00% | +2,406+22.6% | Added |
| Ewa, LLC | 12,796 | $48.2K | 0.01% | +12,796 | New |
| Cambridge Investment Research Advisors, Inc. | 12,435 | $47.0K | 0.00% | −7,565−37.8% | Reduced |
| CWM, LLC | 11,782 | $44.0K | 0.00% | +6,538+124.7% | Added |
| Calton & Associates, Inc. | 11,000 | $41.5K | 0.01% | 00.0% | Unchanged |
| Money Concepts Capital Corp | 10,600 | $40.0K | 0.00% | +10,600 | New |
| Jefferies Financial Group Inc. | 10,100 | $38.1K | 0.00% | +10,100 | New |
| Concurrent Investment Advisors, LLC | 10,085 | $38.0K | 0.00% | +10,085 | New |
| Nemes Rush Group LLC | 10,000 | $37.7K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 10,000 | $37.7K | 0.01% | 00.0% | Unchanged |
| Beacon Pointe Advisors, LLC | 10,000 | $37.7K | 0.00% | +10,000 | New |
| Ameritas Investment Partners, Inc. | 9,744 | $36.7K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 9,560 | $36.0K | 0.00% | +371+4.0% | Added |
| Royal Bank of Canada | 7,651 | $29.0K | 0.00% | −1,794−19.0% | Reduced |
| California State Teachers Retirement System | 7,628 | $28.8K | 0.00% | +1,669+28.0% | Added |
| FMR LLC | 7,495 | $28.3K | 0.00% | +6,467+629.1% | Added |
| Larson Financial Group LLC | 6,993 | $26.4K | 0.00% | +6,993 | New |
| New York State Common Retirement Fund | 6,900 | $26.0K | 0.00% | −42,400−86.0% | Reduced |
| Tower Research Capital LLC (TRC) | 6,474 | $24.4K | 0.00% | −6,315−49.4% | Reduced |
| Rockefeller Capital Management L.P. | 5,000 | $18.9K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 5,000 | $18.9K | 0.00% | +4,000+400.0% | Added |
| SageView Advisory Group, LLC | 5,000 | $18.9K | 0.00% | +5,000 | New |
| Amalgamated Bank | 3,892 | $15.0K | 0.00% | +633+19.4% | Added |