Stocktoria
IRONWOOD PHARMACEUTICALS INC IRWD
IRONWOOD PHARMACEUTICALS INC institutional holders
| Investor | Shares | Value | % of company |
|---|---|---|---|
| BlackRock Finance, Inc. | 22,877,015 | $149.2M | 14.03% |
| RENAISSANCE TECHNOLOGIES LLC | 8,061,073 | $28.3M | 4.94% |
| AQR CAPITAL MANAGEMENT LLC | 7,535,080 | $26.4M | 4.62% |
| TWO SIGMA INVESTMENTS, LP | 5,848,276 | $20.5M | 3.59% |
| MILLENNIUM MANAGEMENT LLC | 457,114 | $1.6M | 0.28% |
| CITADEL ADVISORS LLC | 315,576 | $1.1M | 0.19% |
| D. E. Shaw & Co., Inc. | 47,938 | $168,262 | 0.03% |
% of company = reported institutional shares ÷ shares outstanding. Based on the latest reports; not every holder reports every quarter.
Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.