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 | 7,993,226 | $33.7M | 4.9% |
| AQR CAPITAL MANAGEMENT LLC | 6,465,921 | $27.2M | 3.97% |
| TWO SIGMA INVESTMENTS, LP | 4,556,089 | $19.2M | 2.79% |
| CITADEL ADVISORS LLC | 676,703 | $2.8M | 0.42% |
| D. E. Shaw & Co., Inc. | 122,907 | $517,438 | 0.08% |
% 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.