Which hedge funds own IRWD? IRONWOOD PHARMACEUTICALS INC, Q2 2026 13F holders
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4 of the hedge funds tracked by WhaleCreep disclosed a position in IRWD (IRONWOOD PHARMACEUTICALS INC) in their Q2 2026 13F filings, worth $54.3m in total. The largest holder by portfolio weight is Renaissance Technologies LLC at 0.0% of its book. 3 exited: Brevan Howard Capital Management, Farallon Capital Management, Millennium Management.
4tracked managers holding
0opened this quarter
3exited this quarter
Which hedge funds hold IRWD? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Q2 2026 | 0.0% | $33.7m | 7,993,226 | -1% | reduced |
| Marshall Wace | Q2 2026 | 0.0% | $18.1m | 4,290,093 | -5% | reduced |
| Citadel Advisors | Q2 2026 | 0.0% | $2.1m | 502,403 | 325% | added |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $517.4k | 122,907 | 156% | added |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Brevan Howard Capital Management | 0.0% | $49.9k |
| Farallon Capital Management | 0.0% | $45.6k |
| Millennium Management | 0.0% | $1.6m |
How has hedge fund ownership of IRWD changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 4 | $54.3m |
| Q1 2026 | 7 | $46.5m |
| Q4 2025 | 2 | $27.7m |
| Q3 2025 | 3 | $11.1m |
| Q2 2025 | 3 | $6.1m |
| Q1 2025 | 4 | $17.0m |
| Q4 2024 | 4 | $45.4m |
| Q3 2024 | 3 | $35.8m |
| Q2 2024 | 2 | $56.0m |
| Q1 2024 | 3 | $62.5m |
| Q4 2023 | 2 | $100.8m |
| Q3 2023 | 3 | $68.0m |
| Q2 2023 | 4 | $69.7m |
| Q1 2023 | 3 | $49.1m |
| Q4 2022 | 2 | $54.4m |
| Q3 2022 | 2 | $55.8m |
Counts every tracked manager that disclosed IRWD in that quarter's filing, including managers that have since stopped filing.