IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 205 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2020. The put-call ratio across all filers is 0.02 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $299,000 | -82.1% | 25,675 | -86.2% | 0.02% | -79.1% |
| Q3 2020 | $1,669,000 | -31.9% | 185,517 | -21.9% | 0.11% | -34.1% |
| Q2 2020 | $2,451,000 | -5.4% | 237,500 | -7.5% | 0.17% | -18.5% |
| Q1 2020 | $2,591,000 | -33.3% | 256,804 | -12.1% | 0.20% | -14.6% |
| Q4 2019 | $3,887,000 | +74.7% | 292,000 | +12.7% | 0.24% | +81.8% |
| Q3 2019 | $2,225,000 | +27.4% | 259,205 | +62.4% | 0.13% | +28.2% |
| Q2 2019 | $1,746,000 | -19.1% | 159,600 | 0.0% | 0.10% | -15.6% |
| Q1 2019 | $2,159,000 | +767.1% | 159,600 | +568.3% | 0.12% | +1933.3% |
| Q3 2015 | $249,000 | -84.8% | 23,883 | -82.4% | 0.01% | -86.0% |
| Q2 2015 | $1,637,000 | +19.7% | 135,719 | +58.7% | 0.04% | +26.5% |
| Q1 2015 | $1,368,000 | +13.6% | 85,500 | +8.8% | 0.03% | -71.7% |
| Q4 2014 | $1,204,000 | +101.0% | 78,600 | +70.0% | 0.12% | +650.0% |
| Q3 2014 | $599,000 | +47.5% | 46,248 | +34.9% | 0.02% | +45.5% |
| Q3 2013 | $406,000 | – | 34,290 | – | 0.01% | – |
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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% |