IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 154 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q1 2018. The put-call ratio across all filers is 1.04 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $1,380,000 | -38.7% | 134,500 | -17.6% | 0.01% | -21.4% |
| Q4 2019 | $2,250,000 | +61.2% | 163,300 | 0.0% | 0.01% | +55.6% |
| Q3 2019 | $1,396,000 | -20.6% | 163,300 | 0.0% | 0.01% | 0.0% |
| Q2 2019 | $1,758,000 | +299.5% | 163,300 | +611.3% | 0.01% | +200.0% |
| Q1 2019 | $440,000 | -49.9% | 22,957 | -74.4% | 0.00% | -50.0% |
| Q4 2018 | $879,000 | +99.8% | 89,527 | +290.0% | 0.01% | +100.0% |
| Q3 2018 | $440,000 | +17.0% | 22,957 | +15.7% | 0.00% | +50.0% |
| Q2 2018 | $376,000 | -58.7% | 19,850 | -66.8% | 0.00% | -66.7% |
| Q1 2018 | $910,000 | +3.5% | 59,850 | +1.6% | 0.01% | -14.3% |
| Q4 2017 | $879,000 | 0.0% | 58,900 | 0.0% | 0.01% | 0.0% |
| Q3 2017 | $879,000 | -18.4% | 58,900 | 0.0% | 0.01% | -22.2% |
| Q2 2017 | $1,077,000 | +2.9% | 58,900 | 0.0% | 0.01% | -10.0% |
| Q1 2017 | $1,047,000 | +7.7% | 58,900 | -7.8% | 0.01% | 0.0% |
| Q4 2016 | $972,000 | +6.8% | 63,900 | +8.1% | 0.01% | 0.0% |
| Q3 2016 | $910,000 | +18.6% | 59,100 | 0.0% | 0.01% | +11.1% |
| Q2 2016 | $767,000 | +34.1% | 59,100 | +8.2% | 0.01% | +28.6% |
| Q1 2016 | $572,000 | -25.0% | 54,600 | -15.2% | 0.01% | -22.2% |
| Q4 2015 | $763,000 | +15.8% | 64,400 | +1.9% | 0.01% | +12.5% |
| Q3 2015 | $659,000 | -10.5% | 63,200 | +3.6% | 0.01% | -11.1% |
| Q2 2015 | $736,000 | -21.6% | 61,000 | +3.9% | 0.01% | -25.0% |
| Q1 2015 | $939,000 | -3.8% | 58,700 | -9.4% | 0.01% | 0.0% |
| Q4 2014 | $976,000 | +6.7% | 64,800 | -8.2% | 0.01% | 0.0% |
| Q3 2014 | $915,000 | -12.9% | 70,600 | +3.1% | 0.01% | -25.0% |
| Q2 2014 | $1,050,000 | +17.7% | 68,500 | -5.4% | 0.02% | +14.3% |
| Q1 2014 | $892,000 | +37.2% | 72,400 | +33.1% | 0.01% | +27.3% |
| Q4 2013 | $650,000 | +5.7% | 54,400 | +4.8% | 0.01% | 0.0% |
| Q3 2013 | $615,000 | – | 51,900 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sarissa Capital Management LP | 16,390,000 | $172,422,800 | 22.05% |
| 13D Management LLC | 533,562 | $5,613,073 | 2.85% |
| Quantedge Capital Pte Ltd | 541,200 | $5,693,424 | 2.22% |
| Price Jennifer C. | 520,000 | $5,470,400 | 1.74% |
| Tamarack Advisers, LP | 210,000 | $2,209,200 | 0.81% |
| Intrinsic Value Partners, LLC | 51,605 | $542,885 | 0.73% |
| Brown Capital Management | 3,933,933 | $41,384,975 | 0.62% |
| Old West Investment Management, LLC | 75,219 | $791,303 | 0.43% |
| EMC Capital Management | 43,315 | $456 | 0.38% |
| Hillsdale Investment Management Inc. | 420,617 | $4,424,891 | 0.38% |