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 2021 | $2,000 | -99.0% | 2 | -100.0% | 0.00% | -100.0% |
| Q2 2021 | $207,000 | +15.6% | 16,098 | 0.0% | 0.02% | -4.5% |
| Q1 2021 | $179,000 | -24.8% | 16,098 | -23.2% | 0.02% | -33.3% |
| Q4 2020 | $238,000 | +81.7% | 20,972 | +43.8% | 0.03% | +17.9% |
| Q3 2020 | $131,000 | -20.6% | 14,580 | -9.3% | 0.03% | -24.3% |
| Q2 2020 | $165,000 | +1.9% | 16,080 | 0.0% | 0.04% | -19.6% |
| Q1 2020 | $162,000 | -23.9% | 16,080 | 0.0% | 0.05% | -14.8% |
| Q4 2019 | $213,000 | +21.7% | 16,080 | -21.4% | 0.05% | +8.0% |
| Q3 2019 | $175,000 | +10.8% | 20,460 | +99.4% | 0.05% | -2.0% |
| Q1 2018 | $158,000 | +3.3% | 10,259 | 0.0% | 0.05% | -3.8% |
| Q4 2017 | $153,000 | -10.0% | 10,259 | 0.0% | 0.05% | -14.5% |
| Q3 2017 | $170,000 | +3.0% | 10,259 | +2.0% | 0.06% | -12.7% |
| Q1 2017 | $165,000 | -18.3% | 10,059 | -24.1% | 0.07% | -33.6% |
| Q4 2016 | $202,000 | +11.0% | 13,259 | +15.2% | 0.11% | +0.9% |
| Q3 2016 | $182,000 | +21.3% | 11,509 | 0.0% | 0.11% | +11.6% |
| Q2 2016 | $150,000 | +20.0% | 11,509 | 0.0% | 0.10% | +10.5% |
| Q1 2016 | $125,000 | -6.0% | 11,509 | 0.0% | 0.09% | -4.4% |
| Q4 2015 | $133,000 | – | 11,509 | – | 0.09% | – |
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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% |