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 | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $1 | -99.9% | 99 | 0.0% | 0.00% | – |
| Q3 2022 | $1,000 | 0.0% | 99 | -22.7% | 0.00% | – |
| Q3 2021 | $1,000 | 0.0% | 128 | -17.4% | 0.00% | – |
| Q3 2020 | $1,000 | -66.7% | 155 | -40.4% | 0.00% | – |
| Q2 2020 | $3,000 | -90.9% | 260 | -92.0% | 0.00% | – |
| Q1 2020 | $33,000 | -8.3% | 3,267 | +22.0% | 0.00% | – |
| Q4 2019 | $36,000 | +56.5% | 2,678 | 0.0% | 0.00% | – |
| Q3 2019 | $23,000 | -20.7% | 2,678 | 0.0% | 0.00% | – |
| Q2 2019 | $29,000 | -19.4% | 2,678 | 0.0% | 0.00% | -100.0% |
| Q1 2019 | $36,000 | +28.6% | 2,678 | 0.0% | 0.00% | – |
| Q4 2018 | $28,000 | -42.9% | 2,678 | 0.0% | 0.00% | -100.0% |
| Q3 2018 | $49,000 | -3.9% | 2,678 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $51,000 | +24.4% | 2,678 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $41,000 | – | 2,678 | – | 0.00% | – |
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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% |