AMAG PHARMACEUTICALS INC's ticker is AMAG and the CUSIP is 00163U106. A total of 170 filers reported holding AMAG PHARMACEUTICALS INC in Q1 2019. The put-call ratio across all filers is 1.23 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $110,000 | -91.4% | 17,927 | -86.0% | 0.01% | -76.0% |
| Q2 2019 | $1,282,000 | +504.7% | 128,375 | +678.2% | 0.05% | +316.7% |
| Q1 2019 | $212,000 | +16.5% | 16,497 | +37.5% | 0.01% | +33.3% |
| Q4 2018 | $182,000 | -90.9% | 12,000 | -86.5% | 0.01% | -70.0% |
| Q1 2017 | $1,997,000 | +662.2% | 88,600 | +728.0% | 0.03% | +233.3% |
| Q3 2016 | $262,000 | -48.3% | 10,700 | -50.7% | 0.01% | -64.0% |
| Q1 2016 | $507,000 | -38.0% | 21,700 | -19.9% | 0.02% | -50.0% |
| Q4 2015 | $818,000 | -69.5% | 27,100 | -59.9% | 0.05% | -75.2% |
| Q3 2015 | $2,685,000 | – | 67,600 | – | 0.20% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Broadfin Capital, LLC | 3,921,550 | $81,254,000 | 4.00% |
| Palo Alto Investors LP | 1,614,536 | $33,453,000 | 2.49% |
| Ghost Tree Capital, LLC | 100,000 | $2,072,000 | 1.46% |
| March Altus Capital Management LP | 146,418 | $3,034,000 | 1.11% |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 296,458 | $6,143,000 | 0.98% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 999,339 | $20,706,000 | 0.83% |
| Visium Asset Management, LP | 2,070,870 | $42,908,000 | 0.67% |
| AlphaOne Investment Services, LLC | 97,448 | $2,019,000 | 0.54% |
| CONTINENTAL ADVISORS LLC | 57,438 | $1,190,000 | 0.28% |
| Tamarack Capital Management, LLC | 64,080 | $1,222,000 | 0.25% |