IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 231 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q3 2021. The put-call ratio across all filers is 0.20 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2022 | $0 | -100.0% | 2,500 | 0.0% | 0.00% | – |
| Q2 2022 | $2,000 | 0.0% | 2,500 | -75.0% | 0.00% | – |
| Q4 2021 | $2,000 | -71.4% | 10,000 | 0.0% | 0.00% | – |
| Q3 2021 | $7,000 | -46.2% | 10,000 | 0.0% | 0.00% | -100.0% |
| Q2 2021 | $13,000 | +44.4% | 10,000 | 0.0% | 0.00% | – |
| Q1 2021 | $9,000 | -35.7% | 10,000 | 0.0% | 0.00% | -100.0% |
| Q4 2020 | $14,000 | -82.7% | 10,000 | -22.5% | 0.00% | -83.3% |
| Q2 2020 | $81,000 | +8.0% | 12,900 | +1.6% | 0.01% | +50.0% |
| Q1 2020 | $75,000 | +1775.0% | 12,700 | +358.5% | 0.00% | – |
| Q3 2018 | $4,000 | -66.7% | 2,770 | -9.8% | 0.00% | -100.0% |
| Q2 2018 | $12,000 | – | 3,070 | +53.5% | 0.00% | – |
| Q3 2017 | $0 | -100.0% | 2,000 | +100.6% | 0.00% | -100.0% |
| Q2 2017 | $16,000 | +300.0% | 997 | -90.9% | 0.00% | – |
| Q1 2017 | $4,000 | +300.0% | 11,000 | +746.2% | 0.00% | – |
| Q4 2016 | $1,000 | -66.7% | 1,300 | -79.7% | 0.00% | – |
| Q3 2016 | $3,000 | -40.0% | 6,400 | -29.7% | 0.00% | – |
| Q2 2016 | $5,000 | +66.7% | 9,100 | +44.4% | 0.00% | – |
| Q1 2016 | $3,000 | +200.0% | 6,300 | +114.5% | 0.00% | – |
| Q4 2015 | $1,000 | – | 2,937 | – | 0.00% | – |
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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% |