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 |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Aug 11, 2026 | Aug 11, 2026 |
| 8-K |
Current report
Results of operations, Other events
|
Jul 27, 2026 | Jul 24, 2026 |
| 8-K |
Current report
Officer or director change
|
Jun 25, 2026 | Jun 24, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2026 | Jun 16, 2026 |
| 8-K |
Current report
Other events
|
Jun 2, 2026 | Jun 2, 2026 |
| 8-K |
Current report
Results of operations
|
May 12, 2026 | May 12, 2026 |
| 8-K |
Current report
Results of operations
|
Mar 19, 2026 | Mar 19, 2026 |
| 8-K |
Current report
Other events
|
Mar 11, 2026 | Mar 11, 2026 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 8, 2026 | Jan 7, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2025 | Nov 12, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 27, 2025 | Oct 24, 2025 |
| 8-K |
Current report
Material agreement
|
Oct 3, 2025 | Oct 1, 2025 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Sep 11, 2025 | Sep 10, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2025 | Aug 12, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2025 | Jun 17, 2025 |
| 8-K |
Current report
Auditor change
|
Jun 6, 2025 | Jun 3, 2025 |
| 8-K |
Current report
Results of operations
|
May 13, 2025 | May 13, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 20, 2025 | Mar 20, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Jan 29, 2025 | Jan 28, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 23, 2025 | Jan 23, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 16, 2025 | Jan 10, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 10, 2024 | Dec 10, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2024 | Nov 13, 2024 |
| 8-K |
Current report
Material agreement
|
Oct 4, 2024 | Oct 3, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2024 | Aug 13, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Aug 1, 2024 | Jul 30, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 21, 2024 | Jun 20, 2024 |
| 8-K |
Current report
Results of operations
|
May 14, 2024 | May 14, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 28, 2024 | Mar 28, 2024 |
| 8-K |
Current report
Other events
|
Mar 28, 2024 | Mar 28, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 15, 2024 | Mar 15, 2024 |
| 8-K |
Current report
Other events
|
Mar 11, 2024 | Mar 11, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 8, 2024 | Mar 6, 2024 |
| 8-K |
Current report
Other events
|
Mar 5, 2024 | Mar 5, 2024 |
| 8-K |
Current report
Listing notice
|
Feb 16, 2024 | Feb 14, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Jan 8, 2024 | Jan 4, 2024 |
| 8-K |
Current report
Agreement ended
|
Jan 3, 2024 | Jan 2, 2024 |
| 8-K |
Current report
Other events
|
Dec 22, 2023 | Dec 19, 2023 |
| 8-K |
Current report
Material agreement
|
Dec 13, 2023 | Dec 11, 2023 |
| 8-K |
Current report
Listing notice
|
Dec 8, 2023 | Dec 6, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 31, 2023 | Oct 30, 2023 |
| 8-K |
Current report
Other events
|
Oct 16, 2023 | Oct 16, 2023 |
| 8-K |
Current report
Other events
|
Oct 13, 2023 | Oct 12, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2023 | Aug 10, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 21, 2023 | Jun 20, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 1, 2023 | May 30, 2023 |
| 8-K |
Current report
Results of operations
|
May 11, 2023 | May 11, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 16, 2023 | Mar 16, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 10, 2023 | Mar 10, 2023 |
| 8-K |
Current report
Material agreement
|
Mar 1, 2023 | Feb 28, 2023 |
| 8-K |
Current report
Material agreement, Other events
|
Feb 24, 2023 | Feb 23, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2023 | Feb 23, 2023 |
| 8-K |
Current report
Officer or director change
|
Feb 6, 2023 | Feb 2, 2023 |
| 8-K |
Current report
Other events
|
Dec 13, 2022 | Dec 13, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 15, 2022 | Nov 14, 2022 |
| 8-K |
Current report
Results of operations, Other events
|
Nov 14, 2022 | Nov 14, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 16, 2022 | Sep 15, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 16, 2022 | Aug 13, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2022 | Aug 11, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 9, 2022 | Jun 8, 2022 |
| 8-K |
Current report
Results of operations
|
May 12, 2022 | May 12, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 6, 2022 | Apr 6, 2022 |
| 8-K |
Current report
Material agreement, Other events
|
Apr 1, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Material agreement, Other events
|
Mar 31, 2022 | Mar 30, 2022 |
| 8-K |
Current report
Officer or director change
|
Dec 16, 2021 | Dec 14, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2021 | Nov 12, 2021 |
| 8-K |
Current report
Other events
|
Sep 24, 2021 | Sep 23, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2021 | Aug 12, 2021 |
| 8-K |
Current report
Other events
|
Jul 7, 2021 | Jul 6, 2021 |
| 8-K/A |
Amended current report
Other events
|
Jun 14, 2021 | Jun 3, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 9, 2021 | Jun 8, 2021 |
| 8-K |
Current report
Other events
|
Jun 4, 2021 | Jun 3, 2021 |
| 8-K |
Current report
Other events
|
Jun 2, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Results of operations
|
May 13, 2021 | May 13, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 23, 2021 | Mar 23, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 4, 2021 | Jan 29, 2021 |
| 8-K/A | Amended current report | Jan 28, 2021 | Dec 7, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 14, 2021 | Jan 14, 2021 |
| 8-K |
Current report
Other events
|
Dec 23, 2020 | Dec 21, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 14, 2020 | Dec 11, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 10, 2020 | Dec 7, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2020 | Nov 13, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2020 | Aug 13, 2020 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Aug 4, 2020 | Jul 31, 2020 |
| 8-K |
Current report
Material agreement, Officer or director change, Shareholder vote results
|
Jun 11, 2020 | Jun 5, 2020 |
| 8-K |
Current report
Results of operations
|
May 14, 2020 | May 14, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2020 | Mar 13, 2020 |
| 8-K |
Current report
Material agreement, Agreement ended, Unregistered share sale
|
Jan 10, 2020 | Jan 8, 2020 |
| 8-K |
Current report
Material agreement, Change to shareholder rights
|
Jan 7, 2020 | Jan 2, 2020 |
| 8-K |
Current report
Other events
|
Nov 25, 2019 | Nov 25, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 14, 2019 | Nov 14, 2019 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Nov 6, 2019 | Nov 6, 2019 |
| 8-K |
Current report
Material agreement
|
Oct 31, 2019 | Oct 29, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Sep 10, 2019 | Sep 10, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2019 | Aug 14, 2019 |
| 8-K |
Current report
Other events
|
Jul 18, 2019 | Jul 17, 2019 |
| 8-K |
Current report
Shareholder vote results
|
Jul 15, 2019 | Jul 12, 2019 |
| 8-K |
Current report
Other events
|
Jul 9, 2019 | Jul 9, 2019 |
| 8-K |
Current report
Material agreement, Change to shareholder rights
|
Jul 9, 2019 | Jul 8, 2019 |
| 8-K |
Current report
Other events
|
Jul 2, 2019 | Jul 1, 2019 |
| 8-K |
Current report
Material agreement, Change to shareholder rights, Other events
|
Jun 18, 2019 | Jun 14, 2019 |
| 8-K |
Current report
Listing notice
|
May 31, 2019 | May 31, 2019 |
| 8-K |
Current report
Other events
|
May 31, 2019 | May 30, 2019 |
| 8-K |
Current report
Results of operations
|
May 15, 2019 | May 15, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 22, 2019 | Mar 22, 2019 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights
|
Mar 6, 2019 | Mar 6, 2019 |
| 8-K |
Current report
Other events
|
Feb 26, 2019 | Feb 26, 2019 |
| 8-K |
Current report
Officer or director change
|
Jan 7, 2019 | Jan 7, 2019 |
| 8-K |
Current report
Officer or director change
|
Dec 18, 2018 | Dec 17, 2018 |
| 8-K |
Current report
Impairment
|
Dec 12, 2018 | Dec 5, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 15, 2018 | Nov 15, 2018 |
| 8-K |
Current report
Material agreement, Agreement ended
|
Nov 9, 2018 | Nov 5, 2018 |
| 8-K/A |
Amended current report
Other events
|
Oct 24, 2018 | Apr 9, 2018 |
| 8-K/A |
Amended current report
Other events
|
Oct 17, 2018 | Sep 26, 2018 |
| 8-K/A |
Amended current report
Other events
|
Oct 5, 2018 | Sep 26, 2018 |
| 8-K |
Current report
Other events
|
Oct 2, 2018 | Sep 26, 2018 |
| 8-K |
Current report
Other events
|
Aug 6, 2018 | Aug 6, 2018 |
| 8-K |
Current report
Officer or director change
|
Jul 23, 2018 | Jul 18, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
Jul 18, 2018 | Jul 12, 2018 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 13, 2018 | Jun 12, 2018 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Jun 1, 2018 | May 25, 2018 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
May 24, 2018 | May 19, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Other events
|
May 2, 2018 | May 2, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Apr 26, 2018 | Apr 25, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 24, 2018 | Apr 19, 2018 |
| 8-K |
Current report
Officer or director change
|
Apr 20, 2018 | Apr 16, 2018 |
| 8-K |
Current report
Results of operations
|
Apr 16, 2018 | Apr 13, 2018 |
| 8-K/A | Amended current report | Apr 13, 2018 | Mar 6, 2018 |
| 8-K |
Current report
Other events
|
Apr 10, 2018 | Apr 9, 2018 |
| 8-K/A |
Amended current report
Auditor change
|
Apr 2, 2018 | Mar 6, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 19, 2018 | Mar 13, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Change to shareholder rights, Auditor change, Bylaw or fiscal year change, Other events
|
Mar 12, 2018 | Mar 6, 2018 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Feb 27, 2018 | Feb 22, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale
|
Feb 20, 2018 | Feb 13, 2018 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Feb 12, 2018 | Feb 6, 2018 |
| 8-K |
Current report
Officer or director change
|
Jan 18, 2018 | Jan 11, 2018 |
| 8-K/A |
Amended current report
Acquisition or sale of assets, Change to shareholder rights, Change in control, Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Other events
|
Jan 11, 2018 | Dec 29, 2017 |
| 8-K |
Current report
Acquisition or sale of assets, Change to shareholder rights, Change in control, Officer or director change, Bylaw or fiscal year change, Shareholder vote results, Other events
|
Jan 5, 2018 | Dec 29, 2017 |
| 8-K |
Current report
Other events
|
Dec 14, 2017 | Dec 14, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2017 | Nov 9, 2017 |
| 8-K |
Current report
Material agreement
|
Oct 18, 2017 | Oct 12, 2017 |
| 8-K |
Current report
Other events
|
Oct 2, 2017 | Oct 2, 2017 |
| 8-K |
Current report
Other events
|
Sep 29, 2017 | Sep 28, 2017 |
| 8-K |
Current report
Listing notice
|
Sep 25, 2017 | Sep 21, 2017 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 14, 2017 | Sep 13, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
Sep 11, 2017 | Sep 5, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2017 | Aug 14, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 8, 2017 | Aug 8, 2017 |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure, Other events
|
Aug 8, 2017 | Aug 7, 2017 |
| 8-K |
Current report
Unregistered share sale, Other events
|
Jul 28, 2017 | Jul 24, 2017 |
| 8-K |
Current report
Material agreement
|
Jul 11, 2017 | Jul 10, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Jul 6, 2017 | Jul 6, 2017 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2017 | Jun 8, 2017 |
| 8-K |
Current report
Agreement ended
|
Jun 6, 2017 | May 31, 2017 |
| 8-K |
Current report
Results of operations
|
May 10, 2017 | May 10, 2017 |
| 8-K |
Current report
Unregistered share sale
|
May 2, 2017 | Aug 22, 2016 |
| 8-K |
Current report
Material agreement
|
Apr 3, 2017 | Apr 1, 2017 |
| 8-K |
Current report
Listing notice
|
Mar 28, 2017 | Mar 24, 2017 |
| 8-K |
Current report
Officer or director change
|
Mar 23, 2017 | Mar 9, 2017 |
| 8-K |
Current report
Results of operations
|
Mar 15, 2017 | Mar 15, 2017 |
| 8-K |
Current report
Officer or director change
|
Mar 13, 2017 | Mar 7, 2017 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2017 | Feb 21, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
Feb 10, 2017 | Feb 8, 2017 |
| 8-K |
Current report
Material agreement, Officer or director change, Other events
|
Feb 7, 2017 | Dec 14, 2016 |
| 8-K |
Current report
Agreement ended, Officer or director change
|
Jan 31, 2017 | Jan 31, 2017 |
| 8-K |
Current report
Other events
|
Jan 9, 2017 | Jan 9, 2017 |
| 8-K |
Current report
Other events
|
Dec 22, 2016 | Dec 22, 2016 |
| 8-K |
Current report
Other events
|
Dec 1, 2016 | Nov 29, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 9, 2016 | Nov 9, 2016 |
| 8-K |
Current report
Officer or director change
|
Nov 3, 2016 | Nov 1, 2016 |
| 8-K |
Current report
Change to shareholder rights
|
Oct 31, 2016 | Oct 26, 2016 |
| 8-K |
Current report
Shareholder vote results
|
Oct 26, 2016 | Oct 21, 2016 |
| 8-K |
Current report
Material agreement
|
Oct 6, 2016 | Oct 1, 2016 |
| 8-K |
Current report
Officer or director change
|
Sep 8, 2016 | Sep 6, 2016 |
| 8-K |
Current report
Material agreement, New debt, Change to shareholder rights
|
Aug 23, 2016 | Aug 22, 2016 |
| 8-K |
Current report
Officer or director change
|
Aug 22, 2016 | Jul 14, 2016 |
| 8-K |
Current report
Listing notice
|
Aug 16, 2016 | Aug 11, 2016 |
| 8-K |
Current report
Material agreement
|
Aug 12, 2016 | Aug 8, 2016 |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure
|
Aug 9, 2016 | Aug 9, 2016 |
| 8-K |
Current report
Shareholder vote results
|
Jul 18, 2016 | Jul 14, 2016 |
| 8-K |
Current report
Material agreement
|
Jul 18, 2016 | Jul 12, 2016 |
| 8-K |
Current report
Unregistered share sale
|
Jul 12, 2016 | Jul 6, 2016 |
| 8-K |
Current report
Material agreement, Results of operations, Unregistered share sale, Other events
|
Jul 8, 2016 | Jul 7, 2016 |
| 8-K |
Current report
Other events
|
Jun 29, 2016 | Jun 27, 2016 |
| 8-K |
Current report
Other events
|
Jun 28, 2016 | Jun 28, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 10, 2016 | May 10, 2016 |
| 8-K |
Current report
Officer or director change
|
Apr 26, 2016 | Apr 26, 2016 |
| 8-K |
Current report
Other events
|
Apr 7, 2016 | Apr 7, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Mar 10, 2016 | Mar 10, 2016 |
| 8-K |
Current report
Listing notice, Officer or director change
|
Feb 25, 2016 | Feb 22, 2016 |
| 8-K |
Current report
Other events
|
Feb 16, 2016 | Feb 16, 2016 |
| 8-K |
Current report
Material agreement
|
Jan 7, 2016 | Dec 31, 2015 |
| 8-K |
Current report
Material agreement, Other events
|
Jan 7, 2016 | Jan 7, 2016 |
| 8-K |
Current report
Agreement ended, Acquisition or sale of assets, Exit or restructuring costs
|
Dec 29, 2015 | Dec 24, 2015 |
| 8-K |
Current report
Officer or director change
|
Dec 24, 2015 | Dec 18, 2015 |
| 8-K |
Current report
Other events
|
Dec 22, 2015 | Dec 16, 2015 |
| 8-K |
Current report
Material agreement
|
Dec 18, 2015 | Dec 17, 2015 |
| 8-K |
Current report
Officer or director change
|
Dec 11, 2015 | Dec 7, 2015 |
| 8-K |
Current report
Other events
|
Dec 4, 2015 | Dec 3, 2015 |
Showing 200 filings, the most recent 200. 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)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
- Merck & Co., Inc. MRK
- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
- Novo Nordisk A S NVO
Source: SEC EDGAR filings. This is company-reported data, not investment advice.