SLS - CIK 0001390478
SELLAS Life Sciences Group, Inc. has filed 1,262 documents with the SEC between 2007 and 2026. The most frequent type is insider trade (377 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Annual report to shareholders | ARS | 2025-04-23 | 2024-12-31 |
| Proxy materials | DEFA14A | 2025-04-23 | - |
| Proxy statement | DEF 14A | 2025-04-23 | 2025-06-17 |
| Major company event | 8-K | 2025-03-20 | 2025-03-20 |
| Annual report | 10-K | 2025-03-20 | 2024-12-31 |
| Prospectus supplement | 424B5 | 2025-01-29 | - |
| Major company event | 8-K | 2025-01-29 | 2025-01-28 |
| Major company event | 8-K | 2025-01-23 | 2025-01-23 |
| Major company event | 8-K | 2025-01-16 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Insider trade | 4 | 2025-01-14 | 2025-01-10 |
| Major company event | 8-K | 2024-12-10 | 2024-12-10 |
| Insider trade | 4 | 2024-12-05 | 2024-12-04 |
| Insider trade | 4 | 2024-12-05 | 2024-12-04 |
| Insider trade | 4 | 2024-12-05 | 2024-12-04 |
| Major company event | 8-K | 2024-11-13 | 2024-11-13 |
| Quarterly report | 10-Q | 2024-11-13 | 2024-09-30 |
| Passive ownership stake (update) | SC 13G/A | 2024-11-08 | - |
| Major company event | 8-K | 2024-10-04 | 2024-10-03 |
| Major company event | 8-K | 2024-08-13 | 2024-08-13 |
| Quarterly report | 10-Q | 2024-08-13 | 2024-06-30 |
| Major company event | 8-K | 2024-08-01 | 2024-07-30 |
| Prospectus supplement | 424B5 | 2024-08-01 | - |
| New insider ownership | 3 | 2024-06-27 | 2024-06-20 |
| Major company event | 8-K | 2024-06-21 | 2024-06-20 |
| Major company event | 8-K | 2024-05-14 | 2024-05-14 |
| Quarterly report | 10-Q | 2024-05-14 | 2024-03-31 |
| EFFECT | - | 2024-05-01 | - |
| EFFECT | - | 2024-05-01 | - |
| Annual report to shareholders | ARS | 2024-04-30 | 2023-12-31 |
| Company correspondence | CORRESP | 2024-04-29 | - |
| Company correspondence | CORRESP | 2024-04-29 | - |
| S-3/A | - | 2024-04-29 | - |
| Proxy materials | DEFA14A | 2024-04-29 | - |
| Proxy statement | DEF 14A | 2024-04-29 | 2024-06-20 |
| SEC correspondence | UPLOAD | 2024-04-02 | - |
| SEC correspondence | UPLOAD | 2024-04-02 | - |
| D | - | 2024-03-29 | - |
| Major company event | 8-K | 2024-03-28 | 2024-03-28 |
| Annual report | 10-K | 2024-03-28 | 2023-12-31 |
| Securities registration | S-3 | 2024-03-28 | - |
| Securities registration | S-3 | 2024-03-28 | - |
| Major company event | 8-K | 2024-03-28 | 2024-03-28 |
| Prospectus supplement | 424B5 | 2024-03-18 | - |