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 |
|---|---|---|---|
| Proxy statement | DEF 14A | 2026-04-23 | 2026-06-16 |
| Proxy statement | DEF 14A | 2025-04-23 | 2025-06-17 |
| Proxy statement | DEF 14A | 2024-04-29 | 2024-06-20 |
| Proxy statement | DEF 14A | 2023-04-28 | 2023-06-20 |
| Proxy statement | DEF 14A | 2022-04-25 | 2022-06-08 |
| Proxy statement | DEF 14A | 2021-04-23 | 2021-06-08 |
| Proxy statement | DEF 14A | 2020-04-23 | 2020-06-09 |
| Proxy statement | DEF 14A | 2019-08-05 | 2019-09-10 |
| Proxy statement | DEF 14A | 2019-05-24 | 2019-07-12 |
| Proxy statement | DEF 14A | 2018-04-30 | 2018-06-12 |
| Proxy statement | DEF 14A | 2018-04-06 | 2018-04-25 |
| Proxy statement | DEF 14A | 2017-06-09 | 2017-07-06 |
| Proxy statement | DEF 14A | 2017-04-20 | 2017-06-08 |
| Proxy statement | DEF 14A | 2016-09-21 | 2016-10-21 |
| Proxy statement | DEF 14A | 2016-06-03 | 2016-07-14 |
| Proxy statement | DEF 14A | 2015-04-30 | 2015-06-19 |
| Proxy statement | DEF 14A | 2014-04-30 | 2014-06-27 |
| Proxy statement | DEF 14A | 2013-04-29 | 2013-06-28 |
| Proxy statement | DEF 14A | 2012-04-30 | 2012-06-15 |
| Proxy statement | DEF 14A | 2011-05-31 | 2011-07-15 |
| Proxy statement | DEF 14A | 2010-04-23 | 2010-06-04 |
| Proxy statement | DEF 14A | 2009-04-23 | 2009-06-05 |
| Proxy statement | DEF 14A | 2008-06-18 | 2008-07-18 |