SELLAS Life Sciences Group, Inc. SEC filings SLS

SELLAS Life Sciences Group, Inc. has 1,002 filings in SEC EDGAR's recent list, going back to Apr 21, 2011. Its latest annual report, Form ARS, was filed on Apr 23, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 11, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 11, 2026 (results of operations). The company's fiscal year ends on December 31.

Form Description Filed Period
ARS Annual report to shareholders Apr 23, 2026 Dec 31, 2025
10-K Annual report Mar 19, 2026 Dec 31, 2025
ARS Annual report to shareholders Apr 23, 2025 Dec 31, 2024
10-K Annual report Mar 20, 2025 Dec 31, 2024
ARS Annual report to shareholders Apr 30, 2024 Dec 31, 2023
10-K Annual report Mar 28, 2024 Dec 31, 2023
ARS Annual report to shareholders Apr 28, 2023 Dec 31, 2022
10-K Annual report Mar 16, 2023 Dec 31, 2022
10-K Annual report Mar 31, 2022 Dec 31, 2021
10-K Annual report Mar 23, 2021 Dec 31, 2020
10-K Annual report Mar 13, 2020 Dec 31, 2019
10-K/A Amended annual report Apr 30, 2019 Dec 31, 2018
10-K Annual report Mar 22, 2019 Dec 31, 2018
10-K Annual report Apr 13, 2018 Dec 31, 2017
10-K Annual report Mar 15, 2017 Dec 31, 2016
10-K/A Amended annual report Apr 29, 2016 Dec 31, 2015
10-K/A Amended annual report Apr 15, 2016 Dec 31, 2015
10-K/A Amended annual report Mar 11, 2016 Dec 31, 2015
10-K Annual report Mar 10, 2016 Dec 31, 2015
10-K/A Amended annual report Mar 10, 2015 Dec 31, 2014
10-K Annual report Mar 5, 2015 Dec 31, 2014
10-K Annual report Mar 17, 2014 Dec 31, 2013
10-K Annual report Mar 12, 2013 Dec 31, 2012
10-K Annual report Mar 28, 2012 Dec 31, 2011
10-K/A Amended annual report May 2, 2011 Dec 31, 2010

Showing 25 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.

Company profile

Industry
Pharmaceutical Preparations (SIC 2834)
Listed as
SLS (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
New York, NY
SEC filer status
Non-accelerated filer, Smaller reporting company
SEC CIK
1390478
Former names
GALENA BIOPHARMA, INC. (until Dec 15, 2017); Galena Biopharma, Inc. (until Dec 15, 2017); RXI PHARMACEUTICALS CORP (until Sep 21, 2011)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.