Ironwood Pharmaceuticals, Inc. · NASDAQ:IRWD
Ironwood Pharmaceuticals, Inc. shareholders
As of Jun 30, 2026, 206 institutions reported holding Ironwood Pharmaceuticals, Inc., 97.2% of its shares. Largest: BlackRock, Armistice Capital, LLC and Vanguard. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Ironwood Pharmaceuticals, Inc. | Change | Filed |
|---|---|---|---|---|
| BlackRock | 17.8M | 10.8% | +4.43M | Aug 7, 2026 |
| Armistice Capital, LLC | 13.9M | 8.4% | −1.1M | Aug 14, 2026 |
| Vanguard | 13.8M | 8.3% | −643K | Aug 13, 2026 |
| Sarissa Capital Management LP | 9.19M | 5.6% | no change | Aug 14, 2026 |
| State Street | 8.81M | 5.3% | +1.35M | Aug 7, 2026 |
| Bank of America | 8.68M | 5.3% | +896 | Aug 14, 2026 |
| Renaissance Technologies | 7.99M | 4.8% | −67,847 | Aug 13, 2026 |
| AQR Capital Management LLC | 6.47M | 3.9% | −1.07M | Aug 14, 2026 |
| Acadian Asset Management LLC | 5.85M | 3.5% | −724K | Aug 13, 2026 |
| Geode Capital | 4.83M | 2.9% | +288K | Aug 12, 2026 |