Omeros Corp SEC filings OMER
Omeros Corp has 810 filings in SEC EDGAR's recent list, going back to Mar 31, 2004. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Oct 30, 2026 (officer or director change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Officer or director change
|
Oct 30, 2026 | Oct 28, 2026 |
| S-8 | Employee stock plan registration | Aug 13, 2026 | — |
| 8-K |
Current report
Officer or director change
|
Aug 13, 2026 | Aug 12, 2026 |
| 10-Q | Quarterly report | Aug 12, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2026 | Aug 12, 2026 |
| 8-K |
Current report
Other events
|
Jul 20, 2026 | Jul 20, 2026 |
| 8-K |
Current report
Other events
|
Jul 6, 2026 | Jul 2, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 25, 2026 | Jun 18, 2026 |
| 8-K |
Current report
Other events
|
Jun 18, 2026 | Jun 17, 2026 |
| 10-Q | Quarterly report | May 13, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 13, 2026 | May 13, 2026 |
| ARS | Annual report to shareholders | Apr 30, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 30, 2026 | Jun 18, 2026 |
| 10-K | Annual report | Mar 31, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Jan 7, 2026 | Jan 7, 2026 |
| 8-K |
Current report
Other events
|
Dec 29, 2025 | Dec 24, 2025 |
| 8-K |
Current report
Agreement ended, Acquisition or sale of assets, Other events
|
Dec 1, 2025 | Nov 25, 2025 |
| 424B5 | Prospectus supplement | Nov 14, 2025 | — |
| S-3ASR | Automatic shelf registration | Nov 14, 2025 | — |
| 10-Q | Quarterly report | Nov 13, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2025 | Nov 13, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 15, 2025 | Oct 10, 2025 |
| 10-Q | Quarterly report | Aug 14, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2025 | Aug 14, 2025 |
| 8-K |
Current report
Other events
|
Jul 25, 2025 | Jul 24, 2025 |
| 424B5 | Prospectus supplement | Jul 25, 2025 | — |
| 8-K |
Current report
Shareholder vote results
|
Jul 2, 2025 | Jun 27, 2025 |
| ARS | Annual report to shareholders | May 30, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | May 30, 2025 | Jun 27, 2025 |
| 8-K/A | Amended current report | May 16, 2025 | May 12, 2025 |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Material agreement, Results of operations, New debt, Unregistered share sale, Other events
|
May 15, 2025 | May 12, 2025 |
| 8-K |
Current report
Other events
|
May 6, 2025 | May 6, 2025 |
| 10-K/A | Amended annual report | Apr 30, 2025 | Dec 31, 2024 |
| 10-K | Annual report | Mar 31, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Other events
|
Feb 20, 2025 | Feb 20, 2025 |
| 8-K |
Current report
Other events
|
Jan 16, 2025 | Jan 16, 2025 |
| 8-K |
Current report
Other events
|
Dec 19, 2024 | Dec 19, 2024 |
| 10-Q | Quarterly report | Nov 13, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2024 | Nov 13, 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
Officer or director change, Shareholder vote results
|
Jun 12, 2024 | Jun 6, 2024 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure, Other events
|
Jun 3, 2024 | Jun 3, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 15, 2024 | May 15, 2024 |
| DEF 14A | Proxy statement | Apr 29, 2024 | Jun 6, 2024 |
| ARS | Annual report to shareholders | Apr 29, 2024 | Dec 31, 2023 |
| 10-K | Annual report | Apr 1, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Apr 1, 2024 | Apr 1, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Feb 7, 2024 | Feb 1, 2024 |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Other events
|
Oct 16, 2023 | Oct 16, 2023 |
| S-8 | Employee stock plan registration | Aug 9, 2023 | — |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 28, 2023 | Jun 23, 2023 |
| ARS | Annual report to shareholders | May 17, 2023 | Dec 31, 2022 |
| DEF 14A | Proxy statement | May 17, 2023 | Jun 23, 2023 |
| 8-K |
Current report
Officer or director change
|
May 16, 2023 | May 12, 2023 |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 9, 2023 | May 9, 2023 |
| 10-K/A | Amended annual report | May 1, 2023 | Dec 31, 2022 |
| 10-K | Annual report | Mar 13, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 13, 2023 | Mar 13, 2023 |
| 8-K |
Current report
Results of operations, Other events
|
Feb 6, 2023 | Feb 6, 2023 |
| 424B5 | Prospectus supplement | Nov 18, 2022 | — |
| 424B3 | Prospectus | Nov 18, 2022 | — |
| EFFECT | Filing | Nov 17, 2022 | — |
| CORRESP | Letter to the SEC | Nov 16, 2022 | — |
| UPLOAD | Letter from the SEC | Nov 15, 2022 | — |
| S-3 | Shelf registration | Nov 9, 2022 | — |
| 10-Q | Quarterly report | Nov 9, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2022 | Nov 9, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 6, 2022 | Sep 30, 2022 |
| 10-Q | Quarterly report | Aug 9, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 24, 2022 | Jun 17, 2022 |
| EFFECT | Filing | May 10, 2022 | — |
| 10-Q | Quarterly report | May 10, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 10, 2022 | May 10, 2022 |
| DEF 14A | Proxy statement | May 2, 2022 | Jun 17, 2022 |
| POS AM | Filing | Mar 1, 2022 | — |
| 10-K | Annual report | Mar 1, 2022 | Dec 31, 2021 |
| POSASR | Filing | Mar 1, 2022 | — |
| 8-K |
Current report
Results of operations
|
Mar 1, 2022 | Mar 1, 2022 |
| 8-K |
Current report
Acquisition or sale of assets, Other events
|
Dec 30, 2021 | Dec 23, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 2, 2021 | Dec 1, 2021 |
| 10-Q | Quarterly report | Nov 9, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2021 | Nov 9, 2021 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure, Other events
|
Oct 18, 2021 | Oct 14, 2021 |
| 8-K |
Current report
Other events
|
Oct 1, 2021 | Oct 1, 2021 |
| 10-Q | Quarterly report | Aug 9, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2021 | Aug 9, 2021 |
| S-8 | Employee stock plan registration | Jun 16, 2021 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 16, 2021 | Jun 11, 2021 |
| 8-K |
Current report
Other events
|
May 20, 2021 | May 20, 2021 |
| 10-Q | Quarterly report | May 10, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 10, 2021 | May 10, 2021 |
| DEF 14A | Proxy statement | Apr 30, 2021 | Jun 11, 2021 |
| 424B5 | Prospectus supplement | Mar 1, 2021 | — |
| 10-K | Annual report | Mar 1, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Mar 1, 2021 | Mar 1, 2021 |
| 10-Q | Quarterly report | Nov 9, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2020 | Nov 9, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Aug 14, 2020 | Aug 11, 2020 |
| 424B5 | Prospectus supplement | Aug 13, 2020 | — |
| 424B5 | Prospectus supplement | Aug 13, 2020 | — |
| FWP | Free writing prospectus | Aug 12, 2020 | — |
| 424B5 | Prospectus supplement | Aug 10, 2020 | — |
| 424B5 | Prospectus supplement | Aug 10, 2020 | — |
| 305B2 | Filing | Aug 10, 2020 | — |
| FWP | Free writing prospectus | Aug 10, 2020 | — |
| 10-Q | Quarterly report | Aug 10, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 10, 2020 | Aug 10, 2020 |
| CT ORDER | Filing | Aug 6, 2020 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 11, 2020 | Jun 5, 2020 |
| 10-Q | Quarterly report | May 11, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 11, 2020 | May 11, 2020 |
| DEFA14A | Additional proxy material | Apr 29, 2020 | — |
| DEF 14A | Proxy statement | Apr 29, 2020 | Jun 5, 2020 |
| 10-K | Annual report | Mar 2, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Mar 2, 2020 | Mar 2, 2020 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 11, 2020 | Feb 5, 2020 |
| UPLOAD | Letter from the SEC | Jan 31, 2020 | — |
| AW | Filing | Jan 13, 2020 | — |
| CORRESP | Letter to the SEC | Jan 10, 2020 | — |
| UPLOAD | Letter from the SEC | Dec 30, 2019 | — |
| 8-K |
Current report
Material agreement, Other events
|
Dec 6, 2019 | Dec 5, 2019 |
| 424B5 | Prospectus supplement | Dec 6, 2019 | — |
| 424B5 | Prospectus supplement | Dec 4, 2019 | — |
| S-3ASR | Automatic shelf registration | Dec 4, 2019 | — |
| 10-Q | Quarterly report | Nov 12, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2019 | Nov 12, 2019 |
| CT ORDER | Filing | Sep 11, 2019 | — |
| 10-Q | Quarterly report | Aug 8, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2019 | Aug 8, 2019 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 8, 2019 | Aug 2, 2019 |
| 8-K |
Current report
Material agreement
|
Jul 31, 2019 | Jul 28, 2019 |
| S-8 | Employee stock plan registration | Jun 11, 2019 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 11, 2019 | Jun 7, 2019 |
| 10-Q | Quarterly report | May 9, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
May 9, 2019 | May 9, 2019 |
| DEF 14A | Proxy statement | Apr 29, 2019 | Jun 7, 2019 |
| CT ORDER | Filing | Apr 4, 2019 | — |
| POS AM | Filing | Mar 1, 2019 | — |
| 10-K | Annual report | Mar 1, 2019 | Dec 31, 2018 |
| POSASR | Post-effective amendment no.1 to form s-3 | Mar 1, 2019 | — |
| 8-K |
Current report
Results of operations
|
Mar 1, 2019 | Mar 1, 2019 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Feb 12, 2019 | Feb 9, 2019 |
| 8-K |
Current report
Results of operations
|
Jan 14, 2019 | Jan 14, 2019 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt, Unregistered share sale
|
Nov 15, 2018 | Nov 8, 2018 |
| 10-Q | Quarterly report | Nov 8, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 8, 2018 | Nov 8, 2018 |
| 8-K |
Current report
Other events
|
Oct 5, 2018 | Oct 4, 2018 |
| CT ORDER | Filing | Oct 4, 2018 | — |
| 10-Q | Quarterly report | Aug 9, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2018 | Aug 9, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Jun 18, 2018 | Jun 15, 2018 |
| 8-K |
Current report
Material agreement, Other events
|
May 24, 2018 | May 22, 2018 |
| 8-K |
Current report
Other events
|
May 21, 2018 | May 18, 2018 |
| 8-K |
Current report
Results of operations
|
May 10, 2018 | May 10, 2018 |
| 10-Q | Quarterly report | May 10, 2018 | Mar 31, 2018 |
| DEF 14A | Proxy statement | Apr 30, 2018 | Jun 15, 2018 |
| 8-K |
Current report
Material agreement
|
Apr 13, 2018 | Apr 10, 2018 |
| 8-K |
Current report
Other events
|
Mar 27, 2018 | Mar 23, 2018 |
| 10-K | Annual report | Mar 1, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Results of operations
|
Mar 1, 2018 | Mar 1, 2018 |
| 10-Q | Quarterly report | Nov 9, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2017 | Nov 9, 2017 |
| 8-K |
Current report
Material agreement
|
Oct 17, 2017 | Oct 11, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 5, 2017 | Oct 4, 2017 |
| 8-K |
Current report
Other events
|
Aug 23, 2017 | Aug 23, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
Aug 17, 2017 | Aug 14, 2017 |
| 424B5 | Prospectus supplement | Aug 16, 2017 | — |
| 424B5 | Prospectus supplement | Aug 14, 2017 | — |
| S-3ASR | Automatic shelf registration | Aug 14, 2017 | — |
| 8-K |
Current report
Other events
|
Aug 14, 2017 | Aug 14, 2017 |
| 10-Q | Quarterly report | Aug 8, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2017 | Aug 8, 2017 |
| CT ORDER | Filing | Jun 26, 2017 | — |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jun 22, 2017 | Jun 16, 2017 |
| S-8 | Employee stock plan registration | Jun 21, 2017 | — |
| 10-Q | Quarterly report | May 10, 2017 | Mar 31, 2017 |
| 8-K |
Current report
Results of operations
|
May 10, 2017 | May 10, 2017 |
| CT ORDER | Filing | May 10, 2017 | — |
| DEF 14A | Proxy statement | Apr 25, 2017 | Jun 16, 2017 |
| S-8 | Employee stock plan registration | Mar 16, 2017 | — |
| 10-K | Annual report | Mar 16, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Results of operations
|
Mar 16, 2017 | Mar 16, 2017 |
| NO ACT | Auto-generated paper document | Jan 25, 2017 | Jan 10, 2017 |
| CT ORDER | Filing | Dec 21, 2016 | — |
| 8-K |
Current report
Results of operations
|
Nov 9, 2016 | Nov 9, 2016 |
| 10-Q | Quarterly report | Nov 9, 2016 | Sep 30, 2016 |
| CT ORDER | Filing | Oct 27, 2016 | — |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Oct 27, 2016 | Oct 26, 2016 |
| 8-K |
Current report
Material agreement, Other events
|
Aug 15, 2016 | Aug 11, 2016 |
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
- OMER (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- WA
- Headquarters
- Seattle, WA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1285819
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.