# Ironwood Pharmaceuticals Inc: Form SCHEDULE 13D/A, filed Mar 19, 2026

- Company: [Ironwood Pharmaceuticals Inc](/companies/irwd.md) (CIK 1446847)
- Form: SCHEDULE 13D/A
- Filed: 2026-03-19
- Accepted by EDGAR: Mar 19, 2026, 18:35 ET
- Period: not reported
- Accession: 0000899140-26-000333
- Inline XBRL: no
- Main document: https://www.sec.gov/Archives/edgar/data/1446847/000089914026000333/xslSCHEDULE_13D_X02/primary_doc.xml
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1446847/000089914026000333/

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1446847/000089914026000333/xslSCHEDULE_13D_X02/primary_doc.xml

Filed Mar 19, 2026.
Source: SEC EDGAR, the filing index for accession 0000899140-26-000333. Last ingested by Listed: Nov 5, 2026, 20:07 ET. No prices; not investment advice.