IRONWOOD PHARMACEUTICALS INC's ticker is IRWD and the CUSIP is 46333X108. A total of 123 filers reported holding IRONWOOD PHARMACEUTICALS INC in Q4 2013. The put-call ratio across all filers is 0.58 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2015 | $81,000 | -42.6% | 7,790 | -33.3% | 0.00% | – |
| Q2 2015 | $141,000 | +464.0% | 11,685 | +638.6% | 0.00% | – |
| Q1 2015 | $25,000 | +4.2% | 1,582 | 0.0% | 0.00% | – |
| Q4 2014 | $24,000 | +300.0% | 1,582 | +219.0% | 0.00% | – |
| Q3 2013 | $6,000 | -92.9% | 496 | -94.2% | 0.00% | – |
| Q2 2013 | $85,000 | – | 8,521 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sarissa Capital Management LP | 16,390,000 | $191,107,000 | 16.54% |
| HealthInvest Partners AB | 730,000 | $8,512,000 | 11.99% |
| 13D Management LLC | 612,853 | $7,146,000 | 2.74% |
| Brown Capital Management | 16,257,899 | $189,567,000 | 1.57% |
| BRIDGER MANAGEMENT, LLC | 929,714 | $10,840,000 | 1.40% |
| Camber Capital Management LP | 3,000,000 | $34,980,000 | 1.20% |
| Intrinsic Value Partners, LLC | 55,057 | $642,000 | 0.68% |
| PRICE MICHAEL F | 520,000 | $6,063,000 | 0.67% |
| CLARK ESTATES INC/NY | 355,000 | $4,139,000 | 0.61% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 8,145,674 | $94,979,000 | 0.56% |