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 2026
Institutional positions in SELLAS Life Sciences Group, Inc. as of Mar 31, 2026. 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
- 160
- +51 vs. Q4 2025
- Shares held
- 54.0M
- +27.0M (+100.0%) vs. Q4 2025
- Total value
- $228.4M
- +$126.6M (+124.4%) vs. Q4 2025
- New holders
- 67
- 53 more added
- Sold out
- 16
- 18 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | 45,691 | $193.3K | 0.00% | +7,673+20.2% | Added |
| BNP Paribas Arbitrage, SA | 47,016 | $198.9K | 0.00% | +20,178+75.2% | Added |
| Police & Firemen's Retirement System of New Jersey | 47,089 | $199.2K | 0.00% | +12,346+35.5% | Added |
| Advisor Group Holdings, Inc. | 47,272 | $199.9K | 0.00% | +23,583+99.6% | Added |
| EntryPoint Capital, LLC | 48,224 | $204.0K | 0.06% | +48,224 | New |
| Northstar Asset Management LLC | 50,000 | $211.5K | 0.05% | 00.0% | Unchanged |
| Intech Investment Management LLC | 51,255 | $216.8K | 0.00% | +10,983+27.3% | Added |
| AQR Capital Management LLC | 53,990 | $228.4K | 0.00% | +53,990 | New |
| Fifth Third Bancorp | 59,807 | $253.0K | 0.00% | +59,807 | New |
| Caitong International Asset Management Co., Ltd | 60,712 | $256.8K | 0.05% | +5,583+10.1% | Added |
| Citadel Advisors LLC | 64,641 | $273.4K | 0.00% | +64,641 | New |
| Quantinno Capital Management LP | 74,378 | $314.6K | 0.00% | +74,378 | New |
| Squarepoint Ops LLC | 74,751 | $316.2K | 0.00% | +61,466+462.7% | Added |
| JPMorgan Chase & Co | 81,824 | $327.7K | 0.00% | +32,345+65.4% | Added |
| Balyasny Asset Management LLC | 81,695 | $345.6K | 0.00% | +81,695 | New |
| Engineers Gate Manager LP | 82,780 | $350.2K | 0.00% | +82,780 | New |
| Toroso Investments, LLC | 90,007 | $380.7K | 0.00% | +90,007 | New |
| Tema ETFs LLC | 90,007 | $380.7K | 0.03% | +90,007 | New |
| MetLife Investment Management | 94,255 | $398.7K | 0.00% | +67,074+246.8% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 98,289 | $411.8K | 0.00% | +40,742+70.8% | Added |
| Fulcrum Wealth Advisors, LLC | 109,251 | $462.1K | 0.38% | +60,587+124.5% | Added |
| Profund Advisors LLC | 111,794 | $472.9K | 0.02% | +111,794 | New |
| Price T Rowe Associates Inc | 122,120 | $517.0K | 0.00% | +59,094+93.8% | Added |
| Vanguard Global Advisers, LLC | 128,110 | $541.9K | 0.00% | +128,110 | New |
| LPL Financial LLC | 137,208 | $580.4K | 0.00% | +40,903+42.5% | Added |
| Deutsche Bank AG | 137,646 | $582.2K | 0.00% | +45,958+50.1% | Added |
| Alliancebernstein L.P. | 163,940 | $618.1K | 0.00% | +113,980+228.1% | Added |
| Millennium Management LLC | 159,524 | $674.8K | 0.00% | −1,228,325−88.5% | Reduced |
| Gsa Capital Partners LLP | 163,290 | $691.0K | 0.04% | −181,762−52.7% | Reduced |
| Mariner, LLC | 173,570 | $734.2K | 0.00% | +14,420+9.1% | Added |
| Vontobel Holding Ltd. | 174,153 | $736.7K | 0.00% | +174,153 | New |
| Rhumbline Advisers | 194,198 | $821.5K | 0.00% | +64,889+50.2% | Added |
| Virtu Financial LLC | 221,829 | $938.0K | 0.04% | +221,829 | New |
| Wells Fargo & Company | 225,707 | $954.7K | 0.00% | −73,598−24.6% | Reduced |
| Rafferty Asset Management, LLC | 249,428 | $1.06M | 0.00% | +249,428 | New |
| Simplex Trading, LLC | 295,162 | $1.25M | 0.04% | +295,162 | New |
| Vision Financial Markets LLC | 304,400 | $1.29M | 1.26% | +304,400 | New |
| Wellington Management Group LLP | 344,778 | $1.46M | 0.00% | +344,778 | New |
| Opus Capital Group, LLC | 346,452 | $1.47M | 0.16% | +29,352+9.3% | Added |
| Everhart Financial Group, Inc. | 364,397 | $1.54M | 0.13% | −101,819−21.8% | Reduced |
| Susquehanna International Group, LLP | 397,056 | $1.68M | 0.00% | +47,301+13.5% | Added |
| Two Sigma Investments, LP | 403,165 | $1.71M | 0.00% | −679,042−62.7% | Reduced |
| Bank of New York Mellon Corp | 478,366 | $2.02M | 0.00% | +221,957+86.6% | Added |
| Charles Schwab Investment Management Inc | 480,604 | $2.03M | 0.00% | +72,203+17.7% | Added |
| Goldman Sachs Group Inc | 555,913 | $2.35M | 0.00% | +144,259+35.0% | Added |
| Bank of America Corp | 641,683 | $2.71M | 0.00% | +540,748+535.7% | Added |
| Nuveen, LLC | 670,974 | $2.84M | 0.00% | −352,987−34.5% | Reduced |
| Invesco Ltd. | 698,080 | $2.95M | 0.00% | +644,787+1,209.9% | Added |
| UBS Group AG | 745,419 | $3.15M | 0.00% | +696,692+1,429.8% | Added |
| DAGCO, Inc. | 1,028,780 | $4.35M | 0.94% | +451,240+78.1% | Added |
| Vanguard Fiduciary Trust Co | 1,202,839 | $5.09M | 0.00% | +1,202,839 | New |
| Northern Trust Corp | 1,275,984 | $5.40M | 0.00% | +345,234+37.1% | Added |
| Morgan Stanley | 1,336,293 | $5.65M | 0.00% | +445,364+50.0% | Added |
| Vanguard Portfolio Management LLC | 1,462,806 | $6.19M | 0.00% | +1,462,806 | New |
| Jones Financial Companies LLLP | 1,675,077 | $7.31M | 0.00% | +1,245,834+290.2% | Added |
| Marshall Wace, LLP | 2,037,162 | $8.62M | 0.01% | +696,494+52.0% | Added |
| Geode Capital Management, LLC | 3,912,606 | $16.6M | 0.00% | +835,269+27.1% | Added |
| Vanguard Capital Management LLC | 7,525,929 | $31.8M | 0.00% | +7,525,929 | New |
| State Street Corp | 8,396,356 | $35.5M | 0.00% | +6,208,185+283.7% | Added |
| BlackRock, Inc. | 12,198,410 | $51.6M | 0.00% | +4,657,356+61.8% | Added |
| Clear Street Group Inc. | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −118,440−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −76,554−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −59,536−100.0% | Sold out |
| Tyche Wealth Partners LLC | 0 | $0 | 0.00% | −37,500−100.0% | Sold out |
| Regal Investment Advisors LLC | 0 | $0 | 0.00% | −35,900−100.0% | Sold out |
| Equitable Holdings, Inc. | 0 | $0 | 0.00% | −32,060−100.0% | Sold out |
| Trustmark National Bank Trust Department | 0 | $0 | 0.00% | −24,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −13,800−100.0% | Sold out |
| Money Concepts Capital Corp | 0 | $0 | 0.00% | −10,600−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −10,100−100.0% | Sold out |
| Beacon Pointe Advisors, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| SageView Advisory Group, LLC | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −3,892−100.0% | Sold out |
| Strengthening Families & Communities, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| NVWM, LLC | 0 | $0 | 0.00% | −201−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |
| Motiv8 Investments LLC | – | – | – | – | Not filed |