IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 138 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q1 2016. The put-call ratio across all filers is 0.71 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $689,000 | -16.3% | 45,032 | -28.4% | 0.18% | +21.9% |
| Q2 2016 | $823,000 | +39.5% | 62,909 | +23.5% | 0.15% | +135.9% |
| Q4 2015 | $590,000 | -50.3% | 50,937 | -48.2% | 0.06% | -44.8% |
| Q2 2015 | $1,187,000 | +42.8% | 98,387 | +53.4% | 0.12% | +61.1% |
| Q3 2014 | $831,000 | +16.5% | 64,131 | +37.9% | 0.07% | +28.6% |
| Q2 2014 | $713,000 | – | 46,518 | – | 0.06% | – |
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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% |