IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 132 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q3 2015. The put-call ratio across all filers is 1.51 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $0 | -100.0% | 40 | -60.0% | 0.00% | -100.0% |
| Q3 2017 | $2,000 | -99.9% | 100 | 0.0% | 0.00% | – |
| Q2 2017 | $2,000,000 | 0.0% | 100 | 0.0% | 0.00% | -100.0% |
| Q1 2017 | $2,000,000 | 0.0% | 100 | 0.0% | 0.00% | – |
| Q4 2016 | $2,000,000 | +99900.0% | 100 | 0.0% | 0.00% | – |
| Q3 2016 | $2,000 | +100.0% | 100 | 0.0% | 0.00% | – |
| Q2 2016 | $1,000 | 0.0% | 100 | 0.0% | 0.00% | – |
| Q1 2016 | $1,000 | -75.0% | 100 | -75.0% | 0.00% | -100.0% |
| Q4 2015 | $4,000 | +300.0% | 400 | +300.0% | 0.00% | – |
| Q3 2015 | $1,000 | – | 100 | – | 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% |