IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 138 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2015. The put-call ratio across all filers is 1.14 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $179,000 | -80.9% | 11,380 | -77.0% | 0.04% | -82.3% |
| Q2 2017 | $936,000 | +327.4% | 49,580 | +286.4% | 0.20% | +314.3% |
| Q1 2017 | $219,000 | -63.1% | 12,830 | -67.0% | 0.05% | -65.2% |
| Q4 2016 | $594,000 | -72.8% | 38,830 | -71.8% | 0.14% | -73.1% |
| Q3 2016 | $2,187,000 | +21.4% | 137,757 | 0.0% | 0.52% | +21.2% |
| Q2 2016 | $1,801,000 | +107.2% | 137,757 | +73.5% | 0.43% | +107.2% |
| Q1 2016 | $869,000 | -5.5% | 79,415 | 0.0% | 0.21% | -2.8% |
| Q4 2015 | $920,000 | +11.1% | 79,415 | 0.0% | 0.22% | +3.4% |
| Q3 2015 | $828,000 | -13.6% | 79,415 | 0.0% | 0.21% | -3.7% |
| Q2 2015 | $958,000 | -22.4% | 79,415 | +3.0% | 0.22% | -23.9% |
| Q1 2015 | $1,234,000 | -31.0% | 77,115 | -34.0% | 0.28% | -32.4% |
| Q4 2014 | $1,789,000 | +27.0% | 116,772 | +7.3% | 0.42% | +35.9% |
| Q3 2014 | $1,409,000 | -19.9% | 108,782 | -5.1% | 0.31% | -19.9% |
| Q2 2014 | $1,758,000 | +21.7% | 114,672 | -2.2% | 0.39% | +13.2% |
| Q1 2014 | $1,445,000 | – | 117,250 | – | 0.34% | – |
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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% |