SELLAS Life Sciences Group, Inc. also files under GALE, RXII; those filings are included. Filings under SLS by Seligman LaSalle International Real Estate Fund, Inc. (CIK 0001392577) from Jun 5, 2007 to Jul 7, 2009 belong to a different issuer and are not shown. Filings under SLS by SLS International Inc (CIK 0001121785) from Dec 19, 2005 to Apr 4, 2006 belong to a different issuer and are not shown.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 16, 2026 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 1.1M | — | $0 |
| Jan 7, 2026 | Burns John Thomas | CFO | Grant(A) | 300K | — | $0 |
| Jan 7, 2026 | Wasman Jane | Director | Grant(A) | 50K | — | $0 |
| Jan 7, 2026 | Van Nostrand Robert L | Director | Grant(A) | 50K | — | $0 |
| Jan 7, 2026 | Varian John | Director | Grant(A) | 50K | — | $0 |
| Jan 7, 2026 | Kalin Katherine Bach | Director | Grant(A) | 50K | — | $0 |
| Jan 7, 2026 | Scheinberg David A | Director | Grant(A) | 50K | — | $0 |
| Jan 7, 2026 | Cicic Dragan | SVP, Chief Development Officer | Grant(A) | 300K | — | $0 |
| Dec 3, 2025 | Burns John Thomas | CFO | Other(J) | 59K | $1.50 | $88K |
| Dec 3, 2025 | Stergiou Angelos M. | President and CEO, Director | Other(J) | 187K | $1.50 | $281K |
| Dec 3, 2025 | Cicic Dragan | SVP, Chief Development Officer | Other(J) | 64K | $1.50 | $96K |
| Nov 19, 2025 | Kalin Katherine Bach | Director | Buy(P) | 63K | $1.59 | $101K |
| Jun 12, 2025 | Van Nostrand Robert L | Director | Buy(P) | 10K | $1.48 | $15K |
| May 30, 2025 | Wasman Jane | Director | Buy(P) | 20K | $1.69 | $34K |
| May 22, 2025 | Kalin Katherine Bach | Director | Buy(P) | 20K | $1.80 | $36K |
| Jan 10, 2025 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 386K | — | $0 |
| Jan 10, 2025 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 257K | — | $0 |
| Jan 10, 2025 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 244K | — | $0 |
| Jan 10, 2025 | Wasman Jane | Director | Grant(A) | 13K | — | $0 |
| Jan 10, 2025 | Wasman Jane | Director | Grant(A) | 19K | — | $0 |
| Jan 10, 2025 | Cicic Dragan | SVP, Chief Development Officer | Grant(A) | 170K | — | $0 |
| Jan 10, 2025 | Van Nostrand Robert L | Director | Grant(A) | 19K | — | $0 |
| Jan 10, 2025 | Van Nostrand Robert L | Director | Grant(A) | 13K | — | $0 |
| Jan 10, 2025 | Scheinberg David A | Director | Grant(A) | 13K | — | $0 |
| Jan 10, 2025 | Scheinberg David A | Director | Grant(A) | 19K | — | $0 |
| Jan 10, 2025 | Kalin Katherine Bach | Director | Grant(A) | 13K | — | $0 |
| Jan 10, 2025 | Burns John Thomas | CFO | Grant(A) | 81K | — | $0 |
| Jan 10, 2025 | Burns John Thomas | CFO | Grant(A) | 113K | — | $0 |
| Jan 10, 2025 | Varian John | Director | Grant(A) | 19K | — | $0 |
| Jan 10, 2025 | Kalin Katherine Bach | Director | Grant(A) | 19K | — | $0 |
| Jan 10, 2025 | Varian John | Director | Grant(A) | 13K | — | $0 |
| Jan 10, 2025 | Cicic Dragan | SVP, Chief Development Officer | Grant(A) | 81K | — | $0 |
| Jan 10, 2025 | Burns John Thomas | CFO | Grant(A) | 170K | — | $0 |
| Jan 10, 2025 | Cicic Dragan | SVP, Chief Development Officer | Grant(A) | 113K | — | $0 |
| Dec 4, 2024 | Burns John Thomas | CFO | Other(J) | 7K | $1.13 | $8K |
| Dec 4, 2024 | Stergiou Angelos M. | President and CEO, Director | Other(J) | 28K | $1.13 | $32K |
| Dec 4, 2024 | Cicic Dragan | SVP, Chief Development Officer | Other(J) | 8K | $1.13 | $9K |
| Jan 22, 2024 | Burns John Thomas | CFO | Grant(A) | 47K | — | $0 |
| Jan 22, 2024 | Scheinberg David A | Director | Grant(A) | 10K | — | $0 |
| Jan 22, 2024 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 159K | — | $0 |
| Jan 22, 2024 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Grant(A) | 35K | — | $0 |
| Jan 22, 2024 | Scheinberg David A | Director | Grant(A) | 6K | — | $0 |
| Jan 22, 2024 | Kalin Katherine Bach | Director | Grant(A) | 10K | — | $0 |
| Jan 22, 2024 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Grant(A) | 50K | — | $0 |
| Jan 22, 2024 | Wasman Jane | Director | Grant(A) | 10K | — | $0 |
| Jan 22, 2024 | Wasman Jane | Director | Grant(A) | 6K | — | $0 |
| Jan 22, 2024 | Francomano Robert | Chief Commercial Officer | Grant(A) | 30K | — | $0 |
| Jan 22, 2024 | Francomano Robert | Chief Commercial Officer | Grant(A) | 20K | — | $0 |
| Jan 22, 2024 | Kalin Katherine Bach | Director | Grant(A) | 6K | — | $0 |
| Jan 22, 2024 | Varian John | Director | Grant(A) | 10K | — | $0 |
| Jan 22, 2024 | Varian John | Director | Grant(A) | 6K | — | $0 |
| Jan 22, 2024 | Van Nostrand Robert L | Director | Grant(A) | 10K | — | $0 |
| Jan 22, 2024 | Van Nostrand Robert L | Director | Grant(A) | 6K | — | $0 |
| Jan 22, 2024 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 239K | — | $0 |
| Jan 22, 2024 | Burns John Thomas | CFO | Grant(A) | 75K | — | $0 |
| Dec 6, 2023 | Burns John Thomas | CFO | Other(J) | 3K | $1.08 | $3K |
| Dec 6, 2023 | Francomano Robert | Chief Commercial Officer | Other(J) | 1K | $1.08 | $1K |
| Dec 6, 2023 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Other(J) | 4K | $1.08 | $4K |
| Dec 6, 2023 | Stergiou Angelos M. | President and CEO, Director | Other(J) | 12K | $1.08 | $13K |
| Feb 2, 2023 | Scheinberg David A | Director | Grant(A) | 10K | — | $0 |
| Feb 2, 2023 | Scheinberg David A | Director | Grant(A) | 3K | — | $0 |
| Feb 2, 2023 | Kalin Katherine Bach | Director | Grant(A) | 10K | — | $0 |
| Feb 2, 2023 | Kalin Katherine Bach | Director | Grant(A) | 3K | — | $0 |
| Feb 2, 2023 | Van Nostrand Robert L | Director | Grant(A) | 10K | — | $0 |
| Feb 2, 2023 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Grant(A) | 80K | — | $0 |
| Feb 2, 2023 | Van Nostrand Robert L | Director | Grant(A) | 3K | — | $0 |
| Feb 2, 2023 | Burns John Thomas | CFO | Grant(A) | 75K | — | $0 |
| Feb 2, 2023 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 218K | — | $0 |
| Feb 2, 2023 | Burns John Thomas | CFO | Grant(A) | 20K | — | $0 |
| Feb 2, 2023 | Francomano Robert | Chief Commercial Officer | Grant(A) | 45K | — | $0 |
| Feb 2, 2023 | Francomano Robert | Chief Commercial Officer | Grant(A) | 12K | — | $0 |
| Feb 2, 2023 | Varian John | Director | Grant(A) | 10K | — | $0 |
| Feb 2, 2023 | Varian John | Director | Grant(A) | 3K | — | $0 |
| Feb 2, 2023 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Grant(A) | 20K | — | $0 |
| Feb 2, 2023 | Wasman Jane | Director | Grant(A) | 10K | — | $0 |
| Feb 2, 2023 | Wasman Jane | Director | Grant(A) | 3K | — | $0 |
| Feb 2, 2023 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 58K | — | $0 |
| Dec 5, 2022 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Sell(S) | 2K | $2.59 | $6K |
| Dec 5, 2022 | Burns John Thomas | Senior VP, Finance & CAO | Sell(S) | 1K | $2.59 | $3K |
| Dec 5, 2022 | Stergiou Angelos M. | President and CEO, Director | Sell(S) | 6K | $2.61 | $17K |
| Aug 13, 2022 | Kalin Katherine Bach | Director | Grant(A) | 19K | — | $0 |
| Mar 14, 2022 | Francomano Robert | Chief Commercial Officer | Grant(A) | 100K | — | $0 |
| Jan 31, 2022 | Burns John Thomas | Senior VP, Finance & CAO | Grant(A) | 10K | — | $0 |
| Jan 31, 2022 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Grant(A) | 13K | — | $0 |
| Jan 31, 2022 | Wasman Jane | Director | Grant(A) | 7K | — | $0 |
| Jan 31, 2022 | Wasman Jane | Director | Grant(A) | 2K | — | $0 |
| Jan 31, 2022 | Varian John | Director | Grant(A) | 7K | — | $0 |
| Jan 31, 2022 | Varian John | Director | Grant(A) | 2K | — | $0 |
| Jan 31, 2022 | Van Nostrand Robert L | Director | Grant(A) | 7K | — | $0 |
| Jan 31, 2022 | Van Nostrand Robert L | Director | Grant(A) | 2K | — | $0 |
| Jan 31, 2022 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 165K | — | $0 |
| Jan 31, 2022 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 44K | — | $0 |
| Jan 31, 2022 | Scheinberg David A | Director | Grant(A) | 7K | — | $0 |
| Jan 31, 2022 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Grant(A) | 49K | — | $0 |
| Jan 31, 2022 | Scheinberg David A | Director | Grant(A) | 2K | — | $0 |
| Jan 31, 2022 | Burns John Thomas | Senior VP, Finance & CAO | Grant(A) | 36K | — | $0 |
| Dec 2, 2021 | Stergiou Angelos M. | President and CEO, Director | Sell(S) | 2K | $6.25 | $13K |
| Dec 2, 2021 | Wood Barbara A | EVP, Gen. Counsel, Corp. Sec. | Sell(S) | 847 | $6.25 | $5K |
| Dec 2, 2021 | Burns John Thomas | VP, Finance & Corp Controller | Sell(S) | 231 | $6.27 | $1K |
| Mar 4, 2021 | Stergiou Angelos M. | President and CEO, Director | Grant(A) | 20K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: SELLAS Life Sciences Group, Inc., SEC CIK 0001390478. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under SLS and shows every filing by that issuer (also filed as GALE, RXII). Earlier filings under the same symbol by another issuer are left out.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-14. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for SLS