AMAG PHARMACEUTICALS INC's ticker is AMAG and the CUSIP is 00163U106. A total of 1 filers reported holding AMAG PHARMACEUTICALS INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $0 | – | 10 | -81.8% | 0.00% | – |
| Q2 2020 | $0 | – | 55 | 0.0% | 0.00% | – |
| Q1 2020 | $0 | -100.0% | 55 | 0.0% | 0.00% | – |
| Q4 2019 | $1,000 | -99.9% | 55 | -100.0% | 0.00% | -100.0% |
| Q3 2019 | $1,836,000 | +1773.5% | 158,980 | +1516.6% | 0.00% | – |
| Q2 2019 | $98,000 | -94.4% | 9,834 | -92.7% | 0.00% | -100.0% |
| Q1 2019 | $1,741,000 | -56.7% | 135,139 | -49.0% | 0.00% | -66.7% |
| Q4 2018 | $4,023,000 | +473.1% | 264,900 | +654.7% | 0.01% | +800.0% |
| Q3 2018 | $702,000 | -40.8% | 35,100 | -42.3% | 0.00% | -50.0% |
| Q2 2018 | $1,186,000 | +14725.0% | 60,800 | +15100.0% | 0.00% | – |
| Q1 2018 | $8,000 | -94.4% | 400 | -94.9% | 0.00% | – |
| Q3 2017 | $144,000 | -62.4% | 7,800 | -62.5% | 0.00% | -100.0% |
| Q2 2017 | $383,000 | +527.9% | 20,800 | +670.4% | 0.00% | – |
| Q1 2017 | $61,000 | – | 2,700 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| HealthInvest Partners AB | 520,000 | $15,699,000 | 7.39% |
| Palo Alto Investors LP | 2,835,792 | $85,613,000 | 4.76% |
| Opaleye Management Inc. | 150,000 | $4,529,000 | 1.89% |
| Engaged Capital LLC | 61,425 | $1,854,000 | 1.15% |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 91,400 | $2,759,000 | 1.14% |
| Endurant Capital Management LP | 111,180 | $3,357,000 | 1.12% |
| AlphaOne Investment Services, LLC | 86,817 | $2,621,000 | 0.94% |
| ASHFORD CAPITAL MANAGEMENT INC | 127,625 | $3,853,000 | 0.91% |
| ARDSLEY ADVISORY PARTNERS LP | 205,000 | $6,189,000 | 0.81% |
| STELLIAM INVESTMENT MANAGEMENT, LP | 685,000 | $20,680,000 | 0.62% |