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, Q3 2025
Institutional positions in SELLAS Life Sciences Group, Inc. as of Sep 30, 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
- 94
- +16 vs. Q2 2025
- Shares held
- 32.9M
- +6.16M (+23.0%) vs. Q2 2025
- Total value
- $53.1M
- −$5.61M (−9.6%) vs. Q2 2025
- New holders
- 21
- 30 more added
- Sold out
- 5
- 19 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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 | $6.76M |
| Q2 2024 | 30 | $4.86M |
| Q1 2024 | 30 | $7.82M |
| Q4 2023 | 31 | $3.72M |
| 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 | $9.59M |
| Q3 2021 | 30 | $17.1M |
| Q2 2021 | 29 | $21.3M |
| Q1 2021 | 31 | $13.3M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 6,839,905 | $11.0M | 0.00% | +185,106+2.8% | Added |
| Anson Funds Management LP | 6,032,938 | $9.71M | 1.08% | +5,757,938+2,093.8% | Added |
| BlackRock, Inc. | 5,686,886 | $9.16M | 0.00% | +1,096,613+23.9% | Added |
| Marshall Wace, LLP | 2,357,999 | $3.80M | 0.00% | −357,490−13.2% | Reduced |
| Geode Capital Management, LLC | 2,264,384 | $3.65M | 0.00% | +63,956+2.9% | Added |
| State Street Corp | 1,360,914 | $2.19M | 0.00% | +248,209+22.3% | Added |
| Morgan Stanley | 1,054,791 | $1.70M | 0.00% | −29,687−2.7% | Reduced |
| Nuveen, LLC | 997,910 | $1.61M | 0.00% | +26,581+2.7% | Added |
| Susquehanna International Group, LLP | 863,575 | $1.39M | 0.00% | −626,097−42.0% | Reduced |
| Northern Trust Corp | 731,175 | $1.18M | 0.00% | +32,682+4.7% | Added |
| Gsa Capital Partners LLP | 518,995 | $836.0K | 0.07% | +92,411+21.7% | Added |
| Everhart Financial Group, Inc. | 331,150 | $533.2K | 0.05% | +331,150 | New |
| Millennium Management LLC | 314,702 | $506.7K | 0.00% | −812,523−72.1% | Reduced |
| Charles Schwab Investment Management Inc | 294,106 | $473.5K | 0.00% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 291,822 | $469.8K | 0.00% | +291,822 | New |
| Opus Capital Group, LLC | 250,000 | $403.0K | 0.05% | +10,000+4.2% | Added |
| Bank of New York Mellon Corp | 205,682 | $331.1K | 0.00% | +4,222+2.1% | Added |
| Citadel Advisors LLC | 194,357 | $312.9K | 0.00% | +109,364+128.7% | Added |
| Barclays PLC | 182,680 | $294.1K | 0.00% | +9,877+5.7% | Added |
| Two Sigma Investments, LP | 145,856 | $234.8K | 0.00% | −51,786−26.2% | Reduced |
| Rhumbline Advisers | 136,639 | $220.0K | 0.00% | +850+0.6% | Added |
| Deutsche Bank AG | 121,025 | $194.8K | 0.00% | +118,690+5,083.1% | Added |
| Mariner, LLC | 108,806 | $175.2K | 0.00% | +57,697+112.9% | Added |
| Jane Street Group, LLC | 102,959 | $165.8K | 0.00% | +56,277+120.6% | Added |
| UBS Group AG | 84,989 | $136.8K | 0.00% | −224,698−72.6% | Reduced |
| Wells Fargo & Company | 75,867 | $122.1K | 0.00% | +22,052+41.0% | Added |
| LPL Financial LLC | 71,039 | $114.4K | 0.00% | +3,479+5.1% | Added |
| Stoneridge Investment Partners LLC | 53,709 | $86.0K | 0.06% | +53,709 | New |
| Instrumental Wealth, LLC | 44,914 | $85.8K | 0.06% | +44,914 | New |
| Invesco Ltd. | 50,179 | $80.8K | 0.00% | +130.0% | Added |
| Alliancebernstein L.P. | 49,960 | $80.4K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 49,300 | $79.4K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 47,959 | $78.0K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 46,353 | $74.6K | 0.00% | +136+0.3% | Added |
| Squarepoint Ops LLC | 46,180 | $74.3K | 0.00% | +30,058+186.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 44,647 | $71.9K | 0.00% | −7,563−14.5% | Reduced |
| Bank of America Corp | 42,150 | $67.9K | 0.00% | +7,571+21.9% | Added |
| JPMorgan Chase & Co | 40,722 | $65.6K | 0.00% | −21,170−34.2% | Reduced |
| Northstar Asset Management LLC | 40,320 | $64.9K | 0.01% | +40,320 | New |
| MetLife Investment Management | 39,973 | $64.4K | 0.00% | −18,871−32.1% | Reduced |
| Tyche Wealth Partners LLC | 37,500 | $60.4K | 0.01% | +37,500 | New |
| Trustmark National Bank Trust Department | 36,511 | $58.8K | 0.00% | +36,511 | New |
| Manufacturers Life Insurance Company, The | 33,454 | $53.9K | 0.00% | −1,097−3.2% | Reduced |
| Genesee Capital Advisors, LLC | 30,000 | $48.3K | 0.02% | +30,000 | New |
| Scissortail Wealth Management, LLC | 27,322 | $44.0K | 0.01% | +27,322 | New |
| Equitable Holdings, Inc. | 27,060 | $43.6K | 0.00% | +10,000+58.6% | Added |
| SEI Investments Co | 26,581 | $42.8K | 0.00% | +26,581 | New |
| Kestra Advisory Services, LLC | 26,400 | $42.5K | 0.00% | +26,400 | New |
| Police & Firemen's Retirement System of New Jersey | 23,351 | $37.6K | 0.00% | 00.0% | Unchanged |
| Independent Financial Group, LLC | 23,250 | $37.4K | 0.00% | 00.0% | Unchanged |
| Simon Quick Advisors, LLC | 20,000 | $32.2K | 0.00% | 00.0% | Unchanged |
| Cambridge Investment Research Advisors, Inc. | 20,000 | $32.0K | 0.00% | +20,000 | New |
| BNP Paribas Arbitrage, SA | 19,724 | $31.8K | 0.00% | +9,299+89.2% | Added |
| Goldman Sachs Group Inc | 19,265 | $31.0K | 0.00% | −446,241−95.9% | Reduced |
| SG Americas Securities, LLC | 19,366 | $31.0K | 0.00% | −1,544−7.4% | Reduced |
| Prosperity Financial Group, Inc. | 18,500 | $29.8K | 0.01% | +2,000+12.1% | Added |
| Voya Investment Management LLC | 17,444 | $28.1K | 0.00% | −10,059−36.6% | Reduced |
| ProShare Advisors LLC | 17,221 | $27.7K | 0.00% | −2,350−12.0% | Reduced |
| Quadrature Capital Ltd | 16,579 | $26.6K | 0.00% | −7,705−31.7% | Reduced |
| Commonwealth Equity Services, LLC | 15,854 | $26.0K | 0.00% | −3,394−17.6% | Reduced |
| Blair William & Co | 16,002 | $25.8K | 0.00% | 00.0% | Unchanged |
| Axxcess Wealth Management, LLC | 16,000 | $25.8K | 0.00% | +16,000 | New |
| ELCO Management Co., LLC | 14,009 | $22.6K | 0.01% | +14,009 | New |
| Grange Capital, LLC | 13,501 | $21.7K | 0.02% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 12,789 | $20.6K | 0.00% | −2,676−17.3% | Reduced |
| Victory Capital Management Inc | 11,870 | $19.1K | 0.00% | +223+1.9% | Added |
| Calton & Associates, Inc. | 11,000 | $17.7K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 10,833 | $17.4K | 0.01% | +5,709+111.4% | Added |
| CIBC Bancorp USA Inc. | 10,736 | $17.3K | 0.00% | +10,736 | New |
| Legal & General Group Plc | 10,626 | $17.1K | 0.00% | 00.0% | Unchanged |
| Marshall Financial Group LLC | 10,309 | $16.6K | 0.00% | 00.0% | Unchanged |
| Brooklyn FI, LLC | 10,240 | $16.5K | 0.00% | 00.0% | Unchanged |
| Nemes Rush Group LLC | 10,000 | $16.1K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 10,000 | $16.1K | 0.00% | 00.0% | Unchanged |
| Great Valley Advisor Group, Inc. | 10,000 | $16.0K | 0.00% | −10,000−50.0% | Reduced |
| Ameritas Investment Partners, Inc. | 9,744 | $15.7K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 9,189 | $14.8K | 0.00% | +9,189 | New |
| Advisor Group Holdings, Inc. | 7,660 | $14.7K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 9,445 | $14.0K | 0.00% | +6,871+266.9% | Added |
| California State Teachers Retirement System | 5,959 | $9.59K | 0.00% | +4+0.1% | Added |
| SBI Securities Co., Ltd. | 5,726 | $9.22K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 5,000 | $8.05K | 0.00% | +5,000 | New |
| CWM, LLC | 5,244 | $8.00K | 0.00% | +5,244 | New |
| Citigroup Inc | 4,274 | $6.88K | 0.00% | −38,141−89.9% | Reduced |
| Amalgamated Bank | 3,259 | $5.00K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 1,152 | $1.85K | 0.00% | +1,152 | New |
| FMR LLC | 1,028 | $1.66K | 0.00% | +1,028 | New |
| Global Retirement Partners, LLC | 1,000 | $1.61K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 540 | $869 | 0.00% | +540 | New |
| Jones Financial Companies LLLP | 374 | $610 | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 244 | $393 | 0.00% | +13+5.6% | Added |
| Caldwell Sutter Capital, Inc. | 100 | $161 | 0.00% | 00.0% | Unchanged |
| Parkside Financial Bank & Trust | 2 | $4 | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 573 | $0 | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 0 | $0 | 0.00% | −76,900−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −54,624−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −31,314−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −2,652−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −389−100.0% | Sold out |
| CIBC World Markets Corp | – | – | – | – | Not filed |