Who owns IRONWOOD PHARMACEUTICALS INC (IRWD)? Elite investor 13F holders
3 tracked elite investors reported holding IRONWOOD PHARMACEUTICALS INC as of 2026-06-30, including Sarissa Capital, Renaissance Technologies LLC, D.E. Shaw. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.
3 tracked investors currently reported holding · Latest report period: 2026-06-30 · Health Care · Pharmaceuticals, Biotechnology & Life Sciences
Reported holders and securities, including exits (up to 20)
| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|---|---|---|---|---|---|---|---|---|---|
| Sarissa Capital | IRONWOOD PHARMACEUTICALS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 38684153.00 USD | 9188635.000000 | Shares | hold | Original filing |
| Renaissance Technologies LLC | IRONWOOD PHARMACEUTICALS INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 33651481.00 USD | 7993226.000000 | Shares | reduce | Original filing |
| D.E. Shaw | IRONWOOD PHARMACEUTICALS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Principal | exited | Original filing |
| D.E. Shaw | IRONWOOD PHARMACEUTICALS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 517438.00 USD | 122907.000000 | Shares | add | Original filing |
| Gotham Asset Management | IRONWOOD PHARMACEUTICALS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | Original filing |
Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.
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