IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 166 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2016. The put-call ratio across all filers is 0.80 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2020 | $50,000 | -62.4% | 4,800 | -63.4% | 0.00% | -50.0% |
| Q1 2020 | $133,000 | +146.3% | 13,100 | +351.7% | 0.00% | +100.0% |
| Q3 2018 | $54,000 | -1.8% | 2,900 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $55,000 | +22.2% | 2,900 | 0.0% | 0.00% | – |
| Q1 2018 | $45,000 | +4.7% | 2,900 | 0.0% | 0.00% | – |
| Q4 2017 | $43,000 | -6.5% | 2,900 | 0.0% | 0.00% | – |
| Q3 2017 | $46,000 | -16.4% | 2,900 | 0.0% | 0.00% | – |
| Q2 2017 | $55,000 | +10.0% | 2,900 | -1.4% | 0.00% | – |
| Q1 2017 | $50,000 | +4900.0% | 2,941 | +7073.2% | 0.00% | – |
| Q4 2016 | $1,000 | 0.0% | 41 | +64.0% | 0.00% | – |
| Q4 2015 | $1,000 | – | 25 | – | 0.00% | – |
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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% |