IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 160 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q1 2019. The put-call ratio across all filers is 0.13 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $285,000 | -45.8% | 22,175 | -52.1% | 0.03% | -39.5% |
| Q4 2020 | $526,000 | -23.4% | 46,255 | -8.9% | 0.04% | +7.5% |
| Q1 2019 | $687,000 | -1.9% | 50,800 | -24.9% | 0.04% | +11.1% |
| Q4 2018 | $700,000 | +25.9% | 67,600 | +132.3% | 0.04% | +227.3% |
| Q2 2018 | $556,000 | +26.1% | 29,100 | +24.4% | 0.01% | +57.1% |
| Q2 2017 | $441,000 | -22.5% | 23,400 | -29.9% | 0.01% | -22.2% |
| Q1 2017 | $569,000 | +157.5% | 33,400 | +130.3% | 0.01% | +50.0% |
| Q4 2016 | $221,000 | +19.5% | 14,500 | +23.9% | 0.01% | 0.0% |
| Q3 2016 | $185,000 | -80.5% | 11,700 | -83.9% | 0.01% | -86.4% |
| Q2 2016 | $948,000 | – | 72,500 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| HealthInvest Partners AB | 1,520,000 | $19,562,000 | 18.54% |
| Sarissa Capital Management LP | 16,390,000 | $210,939,000 | 16.77% |
| Healthcare Value Capital, LLC | 200,000 | $2,574,000 | 5.13% |
| Camber Capital Management LP | 7,500,000 | $96,525,000 | 3.25% |
| 13D Management LLC | 650,455 | $8,371,000 | 2.88% |
| BRIDGER MANAGEMENT, LLC | 2,035,114 | $26,192,000 | 2.44% |
| Brown Capital Management | 18,484,759 | $237,899,000 | 1.80% |
| Healthcare Value Capital, LLC | 50,000 | $644,000 | 1.28% |
| Zebra Capital Management LLC | 53,359 | $687,000 | 0.80% |
| PRICE MICHAEL F | 520,000 | $6,692,000 | 0.74% |