IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 129 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2014. The put-call ratio across all filers is 0.36 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2015 | $455,000 | +4.6% | 28,414 | 0.0% | 0.08% | +3.7% |
| Q4 2014 | $435,000 | +18.2% | 28,414 | 0.0% | 0.08% | +14.1% |
| Q3 2014 | $368,000 | -50.1% | 28,414 | -40.9% | 0.07% | -45.8% |
| Q2 2014 | $737,000 | +24.5% | 48,057 | 0.0% | 0.13% | +19.1% |
| Q1 2014 | $592,000 | +6.1% | 48,057 | 0.0% | 0.11% | +8.9% |
| Q4 2013 | $558,000 | -1.9% | 48,057 | 0.0% | 0.10% | -10.6% |
| Q3 2013 | $569,000 | +46.3% | 48,057 | +22.6% | 0.11% | +41.2% |
| Q2 2013 | $389,000 | – | 39,213 | – | 0.08% | – |
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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% |