IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 148 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2018. The put-call ratio across all filers is 0.49 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $4,098,000 | -45.2% | 395,574 | -2.4% | 0.29% | -28.6% |
| Q3 2018 | $7,480,000 | -24.9% | 405,224 | -22.2% | 0.41% | -32.3% |
| Q2 2018 | $9,959,000 | +41.5% | 520,888 | +14.2% | 0.60% | +18.1% |
| Q1 2018 | $7,038,000 | +20.0% | 456,100 | +16.6% | 0.51% | +10.2% |
| Q4 2017 | $5,864,000 | -14.7% | 391,200 | -10.3% | 0.46% | -19.7% |
| Q3 2017 | $6,876,000 | +4.0% | 436,000 | +24.5% | 0.57% | -5.7% |
| Q2 2017 | $6,610,000 | +10.7% | 350,096 | -0.0% | 0.61% | +1.7% |
| Q1 2017 | $5,973,000 | -72.3% | 350,107 | -75.1% | 0.60% | -19.1% |
| Q4 2016 | $21,528,000 | -3.7% | 1,408,000 | 0.0% | 0.74% | +1.1% |
| Q3 2016 | $22,359,000 | +51.5% | 1,408,000 | +24.7% | 0.73% | +36.1% |
| Q2 2016 | $14,762,000 | +299.7% | 1,129,000 | +389.2% | 0.54% | +407.5% |
| Q1 2015 | $3,693,000 | – | 230,800 | – | 0.11% | – |
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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% |