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 | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $742,000 | -50.2% | 54,859 | -32.0% | 0.02% | -48.4% |
| Q3 2018 | $1,489,000 | +35.6% | 80,625 | +13.3% | 0.03% | +34.8% |
| Q1 2018 | $1,098,000 | +253.1% | 71,158 | +246.0% | 0.02% | +228.6% |
| Q4 2017 | $311,000 | -81.6% | 20,566 | -81.4% | 0.01% | -88.3% |
| Q4 2016 | $1,686,000 | -72.9% | 110,276 | -71.9% | 0.06% | -68.8% |
| Q3 2016 | $6,225,000 | +537.8% | 391,981 | +424.9% | 0.19% | +500.0% |
| Q2 2016 | $976,000 | -55.6% | 74,681 | -62.8% | 0.03% | -49.2% |
| Q1 2016 | $2,197,000 | -48.1% | 200,782 | -43.8% | 0.06% | -37.0% |
| Q4 2015 | $4,235,000 | – | 357,495 | – | 0.10% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EcoR1 Capital, LLC | 2,855,515 | $43,661,000 | 13.90% |
| BLUE JAY CAPITAL MANAGEMENT, LLC | 772,369 | $11,810,000 | 7.13% |
| Rubric Capital Management LP | 1,275,000 | $19,495,000 | 6.70% |
| SECTOR GAMMA AS | 1,972,678 | $30,162,000 | 5.68% |
| BRIDGER MANAGEMENT, LLC | 1,879,313 | $28,735,000 | 2.00% |
| Asymmetry Capital Management, L.P. | 57,363 | $877,000 | 1.63% |
| Orbimed Advisors | 7,241,300 | $110,719,000 | 1.41% |
| Broderick Brian C | 144,476 | $2,209,000 | 0.96% |
| Granahan Investment Management | 1,408,000 | $21,528,000 | 0.74% |
| Spark Investment Management LLC | 499,200 | $7,632,000 | 0.63% |