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, Q2 2026
Institutional positions in SELLAS Life Sciences Group, Inc. as of Jun 30, 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
- 193
- +36 vs. Q1 2026
- Shares held
- 73.7M
- +19.8M (+36.7%) vs. Q1 2026
- Total value
- $1.08B
- +$851.5M (+373.1%) vs. Q1 2026
- New holders
- 63
- 77 more added
- Sold out
- 27
- 27 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding SELLAS Life Sciences Group, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −48,224−100.0% | Sold out |
| Farallon Capital Management, L.L.C. | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −35,501−100.0% | Sold out |
| Magnetar Financial LLC | 0 | $0 | 0.00% | −35,032−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −34,096−100.0% | Sold out |
| Stoneridge Investment Partners LLC | 0 | $0 | 0.00% | −20,287−100.0% | Sold out |
| Grange Capital, LLC | 0 | $0 | 0.00% | −17,651−100.0% | Sold out |
| Sig Brokerage, LP | 0 | $0 | 0.00% | −15,429−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −14,437−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −12,262−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −10,941−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −10,833−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −10,329−100.0% | Sold out |
| Concurrent Investment Advisors, LLC | 0 | $0 | 0.00% | −10,085−100.0% | Sold out |
| Private Wealth Management Group, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Marathon Trading Investment Management LLC | 0 | $0 | 0.00% | −1,191−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −1,059−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −40−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Jaffetilchin Investment Partners, LLC | – | – | – | – | Not filed |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |