AMAG PHARMACEUTICALS INC's ticker is AMAG and the CUSIP is 00163U106. A total of 175 filers reported holding AMAG PHARMACEUTICALS INC in Q1 2018. The put-call ratio across all filers is 2.96 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $0 | -100.0% | 27 | -38.6% | 0.00% | – |
| Q4 2018 | $1,000 | -50.0% | 44 | -61.7% | 0.00% | – |
| Q3 2018 | $2,000 | 0.0% | 115 | 0.0% | 0.00% | – |
| Q2 2018 | $2,000 | 0.0% | 115 | 0.0% | 0.00% | – |
| Q1 2018 | $2,000 | 0.0% | 115 | 0.0% | 0.00% | – |
| Q4 2017 | $2,000 | -99.8% | 115 | -99.7% | 0.00% | -100.0% |
| Q4 2016 | $1,232,000 | +4.4% | 35,408 | -26.5% | 0.02% | 0.0% |
| Q3 2016 | $1,180,000 | +2.1% | 48,158 | -0.4% | 0.02% | 0.0% |
| Q2 2016 | $1,156,000 | +46.7% | 48,337 | +43.5% | 0.02% | +50.0% |
| Q1 2016 | $788,000 | -35.0% | 33,675 | -16.1% | 0.01% | -37.5% |
| Q4 2015 | $1,212,000 | -25.5% | 40,161 | -1.9% | 0.02% | -30.4% |
| Q3 2015 | $1,627,000 | -32.1% | 40,942 | +18.1% | 0.02% | -28.1% |
| Q2 2015 | $2,395,000 | -3.8% | 34,672 | -23.9% | 0.03% | 0.0% |
| Q1 2015 | $2,490,000 | +271.6% | 45,559 | +190.0% | 0.03% | +255.6% |
| Q4 2014 | $670,000 | – | 15,708 | – | 0.01% | – |
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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% |