IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 214 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q1 2021. The put-call ratio across all filers is 0.89 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $163,000 | -32.4% | 14,623 | -37.4% | 0.02% | -47.9% |
| Q2 2020 | $241,000 | +33.9% | 23,359 | +100.6% | 0.05% | +26.3% |
| Q1 2018 | $180,000 | -76.3% | 11,644 | -76.6% | 0.04% | -87.7% |
| Q4 2016 | $758,000 | -36.2% | 49,750 | -35.2% | 0.31% | -29.1% |
| Q3 2016 | $1,189,000 | +56.2% | 76,762 | +30.8% | 0.44% | +22.8% |
| Q2 2016 | $761,000 | +384.7% | 58,701 | +292.6% | 0.36% | +482.0% |
| Q1 2016 | $157,000 | -77.6% | 14,951 | -74.7% | 0.06% | -67.9% |
| Q4 2015 | $701,000 | +75.2% | 59,211 | +54.2% | 0.19% | -3.6% |
| Q3 2015 | $400,000 | -60.7% | 38,388 | -56.2% | 0.20% | -12.8% |
| Q2 2015 | $1,018,000 | +401.5% | 87,720 | +557.2% | 0.23% | +175.6% |
| Q4 2014 | $203,000 | – | 13,347 | – | 0.08% | – |
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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% |