IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 154 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q1 2018. The put-call ratio across all filers is 1.04 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $312,012 | -86.7% | 32,400 | -85.4% | 0.00% | -90.0% |
| Q2 2023 | $2,354,397 | +669.3% | 221,278 | +795.9% | 0.02% | +566.7% |
| Q4 2022 | $306,033 | -79.8% | 24,700 | -83.1% | 0.00% | -76.9% |
| Q3 2022 | $1,517,000 | +223.5% | 146,563 | +264.6% | 0.01% | +225.0% |
| Q4 2021 | $469,000 | -3.1% | 40,200 | +8.6% | 0.00% | -20.0% |
| Q3 2021 | $484,000 | -20.3% | 37,000 | -21.5% | 0.01% | -16.7% |
| Q2 2021 | $607,000 | +177.2% | 47,118 | +117.4% | 0.01% | -57.1% |
| Q1 2020 | $219,000 | +12.3% | 21,677 | +48.2% | 0.01% | +180.0% |
| Q4 2019 | $195,000 | +107.4% | 14,623 | +34.2% | 0.01% | +66.7% |
| Q3 2019 | $94,000 | -92.0% | 10,900 | -85.7% | 0.00% | -96.6% |
| Q1 2018 | $1,176,000 | -17.4% | 76,195 | +1.0% | 0.09% | -40.1% |
| Q2 2017 | $1,424,000 | -69.7% | 75,411 | -72.6% | 0.15% | -68.9% |
| Q1 2017 | $4,704,000 | +70.1% | 275,712 | +52.4% | 0.47% | +31.8% |
| Q4 2016 | $2,766,000 | – | 180,881 | – | 0.36% | – |
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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% |