Keros Therapeutics, Inc. SEC filings KROS
Keros Therapeutics, Inc. has 536 filings in SEC EDGAR's recent list, going back to Apr 29, 2016. Its latest annual report, Form ARS, was filed on Apr 22, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Regulation FD disclosure
|
Nov 5, 2026 | Nov 5, 2026 |
| 10-Q | Quarterly report | Nov 5, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 29, 2026 | Sep 29, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 28, 2026 | Sep 28, 2026 |
| EFFECT | Filing | Sep 16, 2026 | — |
| DEL AM | Filing | Sep 11, 2026 | — |
| S-3 | Shelf registration | Sep 10, 2026 | — |
| 8-K |
Current report
Other events
|
Sep 8, 2026 | Sep 8, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 3, 2026 | Aug 3, 2026 |
| 10-Q | Quarterly report | Aug 3, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2026 | Aug 3, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jul 30, 2026 | Jul 30, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 22, 2026 | Jul 17, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jun 25, 2026 | Jun 23, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 3, 2026 | Jun 3, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 1, 2026 | Jun 1, 2026 |
| 10-Q | Quarterly report | May 14, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 14, 2026 | May 14, 2026 |
| ARS | Annual report to shareholders | Apr 22, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 22, 2026 | — |
| DEF 14A | Proxy statement | Apr 22, 2026 | Jun 3, 2026 |
| 8-K |
Current report
Other events
|
Mar 9, 2026 | Mar 9, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 4, 2026 | Mar 4, 2026 |
| S-8 | Employee stock plan registration | Mar 4, 2026 | — |
| 10-K | Annual report | Mar 4, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2026 | Mar 4, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 26, 2026 | Feb 20, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 18, 2026 | Feb 18, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 9, 2026 | Jan 9, 2026 |
| SC TO-I/A | Filing | Nov 20, 2025 | — |
| SC TO-I/A | Filing | Nov 19, 2025 | — |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2025 | Nov 5, 2025 |
| SC TO-I | Filing | Oct 20, 2025 | — |
| SC TO-C | Filing | Oct 15, 2025 | — |
| 8-K |
Current report
Material agreement, Results of operations, Officer or director change, Regulation FD disclosure, Other events
|
Oct 15, 2025 | Oct 15, 2025 |
| 8-K |
Current report
Other events
|
Sep 8, 2025 | Sep 8, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 28, 2025 | Aug 28, 2025 |
| 8-K |
Current report
Other events
|
Aug 20, 2025 | Aug 20, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure, Other events
|
Aug 6, 2025 | Aug 6, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| 8-K |
Current report
Other events
|
Jul 17, 2025 | Jul 17, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 15, 2025 | Jul 9, 2025 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jun 9, 2025 | Jun 4, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 6, 2025 | Jun 6, 2025 |
| 8-K |
Current report
Exit or restructuring costs, Other events
|
May 29, 2025 | May 28, 2025 |
| DEFA14A | Additional proxy material | May 27, 2025 | — |
| DEFA14A | Additional proxy material | May 19, 2025 | — |
| DEFA14A | Additional proxy material | May 19, 2025 | — |
| DEFA14A | Additional proxy material | May 19, 2025 | — |
| 8-K |
Current report
Regulation FD disclosure
|
May 12, 2025 | May 12, 2025 |
| DEFA14A | Additional proxy material | May 9, 2025 | — |
| 10-Q | Quarterly report | May 6, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 6, 2025 | May 6, 2025 |
| ARS | Annual report to shareholders | Apr 23, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 23, 2025 | — |
| DEF 14A | Proxy statement | Apr 23, 2025 | Jun 4, 2025 |
| 8-K |
Current report
Material agreement
|
Apr 18, 2025 | Apr 17, 2025 |
| 8-A12B | Filing | Apr 10, 2025 | — |
| 8-K |
Current report
Material agreement, Change to shareholder rights, Bylaw or fiscal year change, Other events
|
Apr 10, 2025 | Apr 9, 2025 |
| 8-K |
Current report
Other events
|
Mar 31, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Mar 6, 2025 | Mar 5, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 28, 2025 | Feb 28, 2025 |
| S-8 | Employee stock plan registration | Feb 26, 2025 | — |
| 10-K | Annual report | Feb 26, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 26, 2025 | Feb 26, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 30, 2025 | Jan 30, 2025 |
| 8-K |
Current report
Other events
|
Jan 21, 2025 | Jan 16, 2025 |
| 8-K |
Current report
Other events
|
Jan 15, 2025 | Jan 15, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 10, 2025 | Jan 10, 2025 |
| 8-K |
Current report
Other events
|
Dec 12, 2024 | Dec 12, 2024 |
| 8-K |
Current report
Other events
|
Dec 10, 2024 | Dec 9, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 3, 2024 | Dec 3, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 26, 2024 | Nov 26, 2024 |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 6, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Oct 16, 2024 | Oct 15, 2024 |
| 8-K |
Current report
Other events
|
Sep 30, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Other events
|
Sep 3, 2024 | Sep 3, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 28, 2024 | Aug 28, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Aug 7, 2024 | Aug 7, 2024 |
| 10-Q | Quarterly report | Aug 7, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2024 | Aug 7, 2024 |
| 8-K |
Current report
Other events
|
Jun 17, 2024 | Jun 17, 2024 |
| 424B5 | Prospectus supplement | Jun 17, 2024 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Jun 17, 2024 | Jun 14, 2024 |
| 8-K |
Current report
Other events
|
Jun 17, 2024 | Jun 17, 2024 |
| 8-K |
Current report
Other events
|
Jun 4, 2024 | Jun 4, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 3, 2024 | Jun 3, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 30, 2024 | May 30, 2024 |
| 8-K |
Current report
Officer or director change
|
May 28, 2024 | May 23, 2024 |
| 10-Q | Quarterly report | May 8, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 8, 2024 | May 8, 2024 |
| S-3ASR | Automatic shelf registration | May 3, 2024 | — |
| ARS | Annual report to shareholders | Apr 17, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 17, 2024 | — |
| DEF 14A | Proxy statement | Apr 17, 2024 | May 30, 2024 |
| 8-K |
Current report
Other events
|
Mar 14, 2024 | Mar 14, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 6, 2024 | Mar 6, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 5, 2024 | Mar 5, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 5, 2024 | Feb 29, 2024 |
| S-8 | Employee stock plan registration | Feb 29, 2024 | — |
| 10-K | Annual report | Feb 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 28, 2024 | Feb 28, 2024 |
| 8-K |
Current report
Other events
|
Jan 9, 2024 | Jan 9, 2024 |
| 8-K |
Current report
Other events
|
Jan 4, 2024 | Jan 3, 2024 |
| 424B5 | Prospectus supplement | Jan 4, 2024 | — |
| 424B5 | Prospectus supplement | Jan 3, 2024 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 3, 2024 | Jan 3, 2024 |
| 8-K |
Current report
Other events
|
Dec 11, 2023 | Dec 11, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 7, 2023 | Nov 7, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 6, 2023 | Nov 6, 2023 |
| 10-Q | Quarterly report | Nov 6, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2023 | Nov 6, 2023 |
| 8-K |
Current report
Other events
|
Oct 4, 2023 | Oct 4, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 5, 2023 | Sep 5, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Aug 7, 2023 | Aug 7, 2023 |
| 10-Q | Quarterly report | Aug 7, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2023 | Aug 7, 2023 |
| 8-K |
Current report
Other events
|
Jul 24, 2023 | Jul 24, 2023 |
| 8-K |
Current report
Other events
|
Jun 9, 2023 | Jun 9, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 7, 2023 | Jun 7, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 6, 2023 | Jun 6, 2023 |
| 8-K |
Current report
Other events
|
May 22, 2023 | May 22, 2023 |
| 10-Q | Quarterly report | May 4, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 4, 2023 | May 4, 2023 |
| ARS | Annual report to shareholders | Apr 24, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 24, 2023 | — |
| DEF 14A | Proxy statement | Apr 24, 2023 | Jun 6, 2023 |
| 8-K |
Current report
Officer or director change
|
Apr 19, 2023 | Apr 13, 2023 |
| S-8 | Employee stock plan registration | Mar 3, 2023 | — |
| 10-K | Annual report | Mar 3, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 3, 2023 | Mar 3, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 1, 2023 | Mar 1, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 7, 2023 | Feb 7, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 9, 2023 | Jan 9, 2023 |
| 8-K |
Current report
Material agreement
|
Jan 6, 2023 | Jan 6, 2023 |
| 8-K |
Current report
Other events
|
Dec 12, 2022 | Dec 12, 2022 |
| 424B5 | Prospectus supplement | Dec 12, 2022 | — |
| 8-K |
Current report
Other events
|
Dec 12, 2022 | Dec 12, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 22, 2022 | Nov 22, 2022 |
| 8-K |
Current report
Other events
|
Nov 7, 2022 | Nov 7, 2022 |
| 8-K |
Current report
Other events
|
Nov 3, 2022 | Nov 3, 2022 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2022 | Nov 3, 2022 |
| 8-K |
Current report
Other events
|
Sep 12, 2022 | Sep 12, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 6, 2022 | Sep 6, 2022 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 4, 2022 | Aug 4, 2022 |
| 10-Q | Quarterly report | Aug 4, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2022 | Aug 4, 2022 |
| 8-K |
Current report
Other events
|
Jun 13, 2022 | Jun 13, 2022 |
| 8-K |
Current report
Other events
|
Jun 10, 2022 | Jun 10, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 1, 2022 | Jun 1, 2022 |
| 8-K |
Current report
Other events
|
May 18, 2022 | May 18, 2022 |
| 8-K |
Current report
Other events
|
May 17, 2022 | May 17, 2022 |
| 10-Q | Quarterly report | May 5, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 5, 2022 | May 5, 2022 |
| DEFA14A | Additional proxy material | Apr 18, 2022 | — |
| DEF 14A | Proxy statement | Apr 18, 2022 | Jun 1, 2022 |
| S-8 | Employee stock plan registration | Mar 9, 2022 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 9, 2022 | Mar 9, 2022 |
| 10-K | Annual report | Mar 9, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2022 | Mar 9, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 11, 2022 | Feb 11, 2022 |
| 8-K |
Current report
Officer or director change, Other events
|
Jan 31, 2022 | Jan 28, 2022 |
| 8-K/A |
Amended current report
Other events
|
Dec 13, 2021 | Dec 13, 2021 |
| 8-K |
Current report
Other events
|
Dec 13, 2021 | Dec 13, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 13, 2021 | Dec 12, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 22, 2021 | Nov 22, 2021 |
| 8-K |
Current report
Other events
|
Nov 15, 2021 | Nov 15, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 12, 2021 | Nov 11, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 4, 2021 | Nov 4, 2021 |
| 10-Q | Quarterly report | Nov 4, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2021 | Nov 4, 2021 |
| 8-K |
Current report
Other events
|
Oct 4, 2021 | Oct 4, 2021 |
| 8-K |
Current report
Material agreement, New debt
|
Sep 9, 2021 | Sep 7, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 2, 2021 | Sep 2, 2021 |
| 10-Q | Quarterly report | Aug 5, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Material agreement, Results of operations
|
Aug 5, 2021 | Aug 4, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Aug 2, 2021 | Jul 30, 2021 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 22, 2021 | Jun 22, 2021 |
| 8-K |
Current report
Other events
|
Jun 11, 2021 | Jun 11, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 1, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
May 27, 2021 | May 27, 2021 |
| 8-K |
Current report
Other events
|
May 25, 2021 | May 25, 2021 |
| 8-K |
Current report
Other events
|
May 14, 2021 | May 14, 2021 |
| 8-K |
Current report
Other events
|
May 12, 2021 | May 12, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
May 6, 2021 | May 6, 2021 |
| 10-Q | Quarterly report | May 6, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 6, 2021 | May 6, 2021 |
| S-3ASR | Automatic shelf registration | May 3, 2021 | — |
| DEFA14A | Additional proxy material | Apr 19, 2021 | — |
| DEF 14A | Proxy statement | Apr 19, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 25, 2021 | Mar 25, 2021 |
| 10-K | Annual report | Mar 25, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 25, 2021 | Mar 25, 2021 |
| 8-K |
Current report
Other events
|
Mar 5, 2021 | Mar 5, 2021 |
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.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- KROS (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Lexington, MA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1664710
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.