Ironwood Pharmaceuticals Inc SEC filings IRWD
Ironwood Pharmaceuticals Inc has 1,003 filings in SEC EDGAR's recent list, going back to Nov 4, 2014. Its latest annual report, Form ARS, was filed on Apr 28, 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 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| S-8 | Employee stock plan registration | 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
Officer or director change
|
Oct 16, 2026 | Oct 12, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 18, 2026 | Jun 16, 2026 |
| 8-K |
Current report
Other events
|
Jun 15, 2026 | Jun 15, 2026 |
| 8-K/A |
Amended current report
Officer or director change
|
May 21, 2026 | May 8, 2026 |
| 8-K |
Current report
Officer or director change
|
May 13, 2026 | May 8, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| ARS | Annual report to shareholders | Apr 28, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 28, 2026 | — |
| DEF 14A | Proxy statement | Apr 28, 2026 | Jun 16, 2026 |
| 8-K |
Current report
Other events
|
Mar 11, 2026 | Mar 10, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 25, 2026 | Feb 25, 2026 |
| 8-K |
Current report
Results of operations
|
Jan 2, 2026 | Jan 2, 2026 |
| 8-K |
Current report
Material agreement, Other events
|
Dec 23, 2025 | Dec 18, 2025 |
| 8-K |
Current report
Other events
|
Nov 26, 2025 | Nov 25, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2025 | Nov 10, 2025 |
| 10-Q | Quarterly report | Nov 10, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Officer or director change
|
Oct 10, 2025 | Oct 7, 2025 |
| 8-K |
Current report
Other events
|
Sep 3, 2025 | Aug 29, 2025 |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2025 | Aug 7, 2025 |
| 8-K |
Current report
Auditor change
|
Jul 10, 2025 | Jul 3, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2025 | Jun 10, 2025 |
| 8-K |
Current report
Listing notice
|
Jun 3, 2025 | May 28, 2025 |
| 10-Q | Quarterly report | May 12, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| ARS | Annual report to shareholders | Apr 28, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 28, 2025 | — |
| DEF 14A | Proxy statement | Apr 28, 2025 | Jun 10, 2025 |
| 8-K |
Current report
Results of operations
|
Apr 25, 2025 | Apr 25, 2025 |
| 8-K |
Current report
Other events
|
Apr 14, 2025 | Apr 14, 2025 |
| 10-K | Annual report | Mar 31, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Listing notice, Regulation FD disclosure
|
Mar 27, 2025 | Mar 21, 2025 |
| NT 10-K | Filing | Mar 3, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 27, 2025 | Feb 27, 2025 |
| 8-K |
Current report
Exit or restructuring costs, Officer or director change
|
Jan 29, 2025 | Jan 17, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 5, 2024 | Dec 2, 2024 |
| 8-K |
Current report
Officer or director change
|
Nov 12, 2024 | Nov 6, 2024 |
| 10-Q | Quarterly report | Nov 7, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2024 | Nov 7, 2024 |
| 8-K |
Current report
Material agreement, New debt, Other events
|
Sep 30, 2024 | Sep 27, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jun 21, 2024 | Jun 21, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Jun 20, 2024 | Jun 20, 2024 |
| 10-Q | Quarterly report | May 9, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 9, 2024 | May 9, 2024 |
| ARS | Annual report to shareholders | Apr 25, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 25, 2024 | — |
| DEF 14A | Proxy statement | Apr 25, 2024 | Jun 18, 2024 |
| 10-K | Annual report | Feb 16, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 15, 2024 | Feb 15, 2024 |
| 8-K |
Current report
Results of operations
|
Jan 8, 2024 | Jan 8, 2024 |
| UPLOAD | Letter from the SEC | Dec 6, 2023 | — |
| CORRESP | Letter to the SEC | Nov 30, 2023 | — |
| UPLOAD | Letter from the SEC | Nov 15, 2023 | — |
| 10-Q | Quarterly report | Nov 9, 2023 | Sep 30, 2023 |
| S-8 | Employee stock plan registration | Nov 9, 2023 | — |
| S-3ASR | Automatic shelf registration | Nov 9, 2023 | — |
| 8-K |
Current report
Results of operations
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K/A | Amended current report | Sep 11, 2023 | Jun 29, 2023 |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2023 | Aug 8, 2023 |
| 8-K |
Current report
Acquisition or sale of assets, New debt, Other events
|
Jun 30, 2023 | Jun 29, 2023 |
| SC TO-T/A | Filing | Jun 29, 2023 | — |
| SC TO-T/A | Filing | Jun 26, 2023 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 22, 2023 | Jun 20, 2023 |
| SC TO-T/A | Filing | Jun 20, 2023 | — |
| SC TO-T/A | Filing | Jun 16, 2023 | — |
| SC TO-T | Filing | May 31, 2023 | — |
| SC TO-C | Filing | May 23, 2023 | — |
| SC TO-C | Filing | May 22, 2023 | — |
| SC TO-C | Filing | May 22, 2023 | — |
| 8-K |
Current report
Material agreement, New debt, Other events
|
May 22, 2023 | May 21, 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 27, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 27, 2023 | — |
| DEF 14A | Proxy statement | Apr 27, 2023 | — |
| 8-K |
Current report
Officer or director change
|
Apr 11, 2023 | Apr 10, 2023 |
| 10-K | Annual report | Feb 16, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 16, 2023 | Feb 16, 2023 |
| 8-K |
Current report
Results of operations
|
Jan 9, 2023 | Jan 9, 2023 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2022 | Nov 3, 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
Shareholder vote results
|
Jun 3, 2022 | Jun 1, 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 21, 2022 | — |
| DEF 14A | Proxy statement | Apr 21, 2022 | Jun 1, 2022 |
| 10-K | Annual report | Feb 18, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2022 | Feb 17, 2022 |
| 8-K |
Current report
Results of operations
|
Jan 10, 2022 | Jan 10, 2022 |
| 8-K |
Current report
Officer or director change
|
Dec 1, 2021 | Dec 1, 2021 |
| 10-Q | Quarterly report | Nov 4, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2021 | Nov 4, 2021 |
| 10-Q | Quarterly report | Aug 5, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Officer or director change
|
Jul 22, 2021 | Jul 16, 2021 |
| 8-K/A |
Amended current report
Officer or director change
|
Jun 24, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Officer or director change
|
Jun 7, 2021 | Jun 1, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 3, 2021 | Jun 2, 2021 |
| 10-Q | Quarterly report | May 6, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 6, 2021 | May 6, 2021 |
| DEFA14A | Additional proxy material | Apr 22, 2021 | — |
| DEF 14A | Proxy statement | Apr 22, 2021 | Jun 2, 2021 |
| 8-K |
Current report
Officer or director change
|
Mar 30, 2021 | Mar 26, 2021 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 15, 2021 | Feb 4, 2021 |
| 10-K | Annual report | Feb 17, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2021 | Feb 17, 2021 |
| 8-K |
Current report
Officer or director change
|
Feb 8, 2021 | Feb 4, 2021 |
| 8-K |
Current report
Results of operations
|
Jan 11, 2021 | Jan 11, 2021 |
| 8-K |
Current report
Officer or director change
|
Dec 16, 2020 | Dec 14, 2020 |
| 8-K |
Current report
Officer or director change
|
Dec 3, 2020 | Dec 1, 2020 |
| S-3ASR | Automatic shelf registration | Nov 6, 2020 | — |
| 10-Q | Quarterly report | Nov 5, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Nov 5, 2020 | Nov 4, 2020 |
| 8-K |
Current report
Exit or restructuring costs
|
Sep 29, 2020 | Sep 29, 2020 |
| 10-Q | Quarterly report | Aug 6, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2020 | Aug 6, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2020 | Jun 3, 2020 |
| 10-Q | Quarterly report | May 6, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 6, 2020 | May 6, 2020 |
| 8-K |
Current report
Officer or director change
|
Apr 21, 2020 | Apr 17, 2020 |
| DEFA14A | Additional proxy material | Apr 21, 2020 | — |
| DEF 14A | Proxy statement | Apr 21, 2020 | Jun 3, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 16, 2020 | Mar 14, 2020 |
| 10-K | Annual report | Feb 13, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 13, 2020 | Feb 13, 2020 |
| 8-K |
Current report
Results of operations
|
Jan 13, 2020 | Jan 13, 2020 |
| 10-Q | Quarterly report | Oct 31, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 31, 2019 | Oct 31, 2019 |
| 8-K |
Current report
Material agreement
|
Sep 18, 2019 | Sep 16, 2019 |
| 8-K |
Current report
Agreement ended
|
Sep 16, 2019 | Sep 16, 2019 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Aug 14, 2019 | Aug 14, 2019 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Aug 13, 2019 | Aug 7, 2019 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Aug 1, 2019 | Aug 1, 2019 |
| 10-Q | Quarterly report | Jul 30, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2019 | Jul 30, 2019 |
| 8-K |
Current report
Other events
|
Jul 22, 2019 | Jul 22, 2019 |
| 8-K |
Current report
Officer or director change
|
Jul 10, 2019 | Jul 8, 2019 |
| 8-K |
Current report
Material agreement, Agreement ended
|
Jun 13, 2019 | Jun 11, 2019 |
| S-8 | Employee stock plan registration | May 31, 2019 | — |
| S-8 | Employee stock plan registration | May 31, 2019 | — |
| 8-K |
Current report
Change to shareholder rights, Officer or director change, Shareholder vote results
|
May 31, 2019 | May 30, 2019 |
| 8-K |
Current report
Results of operations
|
May 14, 2019 | May 14, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
May 3, 2019 | Jun 12, 2018 |
| 10-Q | Quarterly report | May 2, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations
|
May 2, 2019 | May 2, 2019 |
| DEF 14A | Proxy statement | Apr 26, 2019 | May 30, 2019 |
| CT ORDER | Filing | Apr 26, 2019 | — |
| CT ORDER | Filing | Apr 26, 2019 | — |
| PRE 14A | Preliminary proxy statement | Apr 12, 2019 | May 30, 2019 |
| 8-K |
Current report
Material agreement
|
Apr 8, 2019 | Apr 5, 2019 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Officer or director change, Regulation FD disclosure
|
Apr 4, 2019 | Mar 30, 2019 |
| 8-K |
Current report
Other events
|
Apr 2, 2019 | Apr 2, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 28, 2019 | Jan 3, 2019 |
| CT ORDER | Filing | Mar 19, 2019 | — |
| 8-K |
Current report
Other events
|
Mar 8, 2019 | Mar 8, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 26, 2019 | Feb 26, 2019 |
| 10-K | Annual report | Feb 25, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Feb 13, 2019 | Feb 7, 2019 |
| 8-K |
Current report
Officer or director change
|
Jan 24, 2019 | Jan 20, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 7, 2019 | Jan 7, 2019 |
| 8-K |
Current report
Officer or director change
|
Jan 4, 2019 | Jan 3, 2019 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Jan 3, 2019 | Dec 31, 2018 |
| 8-A12B/A | Filing | Jan 3, 2019 | — |
| 10-Q | Quarterly report | Nov 6, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2018 | Nov 6, 2018 |
| S-8 | Employee stock plan registration | Aug 6, 2018 | — |
| S-8 | Employee stock plan registration | Aug 6, 2018 | — |
| 10-Q | Quarterly report | Aug 6, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Agreement ended, Results of operations, Exit or restructuring costs, Impairment
|
Aug 6, 2018 | Jul 31, 2018 |
| 8-K |
Current report
Exit or restructuring costs
|
Jun 27, 2018 | Jun 27, 2018 |
| 8-K |
Current report
Officer or director change
|
Jun 12, 2018 | Jun 12, 2018 |
| 8-K |
Current report
Shareholder vote results
|
Jun 1, 2018 | May 31, 2018 |
| DEFA14A | Additional proxy material | May 14, 2018 | — |
| DEFA14A | Additional proxy material | May 14, 2018 | — |
| PRRN14A | Preliminary proxy statement amendment | May 10, 2018 | — |
| UPLOAD | Letter from the SEC | May 9, 2018 | — |
| DEFA14A | Additional proxy material | May 9, 2018 | — |
| DEFA14A | Additional proxy material | May 9, 2018 | — |
| 10-Q | Quarterly report | May 4, 2018 | Mar 31, 2018 |
| DEFA14A | Additional proxy material | May 2, 2018 | — |
| DEFA14A | Additional proxy material | May 2, 2018 | — |
| DEFA14A | Additional proxy material | May 2, 2018 | — |
| CORRESP | Letter to the SEC | May 2, 2018 | — |
| DEFC14A | Filing | May 2, 2018 | — |
| DEFA14A | Additional proxy material | May 1, 2018 | — |
| DEFA14A | Additional proxy material | May 1, 2018 | — |
| PREN14A | Preliminary proxy statement | May 1, 2018 | Apr 19, 2018 |
| 8-K |
Current report
Results of operations
|
May 1, 2018 | May 1, 2018 |
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
- IRWD (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Boston, MA
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1446847
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.