Ironwood Pharmaceuticals Inc (NASDAQ:IRWD) currently has 185 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 31 Dec, 2025 | 16,025,000 | -125,000 | -0.77% | $54,004,250.00 |
| VANGUARD GROUP INC | 31 Dec, 2025 | 15,958,196 | -113,810 | -0.71% | $53,779,120.00 |
| Sarissa Capital Management LP | 31 Dec, 2025 | 15,919,435 | 0 | 0.00% | $53,648,496.00 |
| BlackRock, Inc. | 31 Dec, 2025 | 12,784,806 | 722,248 | 5.99% | $43,084,796.00 |
| UBS Group AG | 31 Dec, 2025 | 11,710,863 | 10,899,199 | 1,342.82% | $39,465,609.00 |
| BANK OF AMERICA CORP /DE/ | 31 Dec, 2025 | 11,521,660 | -173,884 | -1.49% | $38,827,995.00 |
| RENAISSANCE TECHNOLOGIES LLC | 31 Dec, 2025 | 8,204,973 | -147,200 | -1.76% | $27,650,759.00 |
| ACADIAN ASSET MANAGEMENT LLC | 31 Dec, 2025 | 6,457,817 | -44,676 | -0.69% | $21,746.00 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 31 Dec, 2025 | 4,975,939 | 58,603 | 1.19% | $16,768,914.00 |
| AQR CAPITAL MANAGEMENT LLC | 31 Dec, 2025 | 4,723,531 | -655,004 | -12.18% | $15,918,299.00 |
| MARSHALL WACE, LLP | 31 Dec, 2025 | 4,424,002 | 1,279,863 | 40.71% | $14,908,888.00 |
| STATE STREET CORP | 31 Dec, 2025 | 4,411,222 | 1,254,915 | 39.76% | $14,865,818.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Dec, 2025 | 3,623,534 | 8,547 | 0.24% | $12,213,817.00 |
| FEDERATED HERMES, INC. | 31 Dec, 2025 | 3,318,137 | 1,161,033 | 53.82% | $11,182,122.00 |
| TWO SIGMA ADVISERS, LP | 31 Dec, 2025 | 3,140,100 | -176,400 | -5.32% | $10,582,137.00 |
| TWO SIGMA INVESTMENTS, LP | 31 Dec, 2025 | 2,853,205 | 318,694 | 12.57% | $9,615,301.00 |
| JANE STREET GROUP, LLC | 31 Dec, 2025 | 2,836,462 | 515,367 | 22.20% | $9,558,877.00 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 31 Dec, 2025 | 2,759,667 | 839,137 | 43.69% | $9,300,078.00 |
| Connor, Clark & Lunn Investment Management Ltd. | 31 Dec, 2025 | 1,990,927 | -170,891 | -7.90% | $6,709,424.00 |
| Qube Research & Technologies Ltd | 31 Dec, 2025 | 1,681,229 | -1,125,681 | -40.10% | $5,665,742.00 |