AMAG PHARMACEUTICALS INC's ticker is AMAG and the CUSIP is 00163U106. A total of 141 filers reported holding AMAG PHARMACEUTICALS INC in Q4 2019. The put-call ratio across all filers is 1.26 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $170,000 | -61.5% | 14,725 | -66.7% | 0.00% | – |
| Q2 2019 | $441,000 | -61.4% | 44,175 | -50.2% | 0.00% | -100.0% |
| Q1 2019 | $1,143,000 | -85.8% | 88,762 | -83.3% | 0.00% | -87.5% |
| Q4 2018 | $8,074,000 | -29.1% | 531,528 | -6.7% | 0.02% | -15.8% |
| Q3 2018 | $11,391,000 | +13.0% | 569,549 | +10.2% | 0.02% | +11.8% |
| Q2 2018 | $10,081,000 | +3526.3% | 516,956 | +3646.1% | 0.02% | +1600.0% |
| Q1 2018 | $278,000 | +219.5% | 13,800 | +109.1% | 0.00% | – |
| Q4 2017 | $87,000 | -67.3% | 6,600 | -54.2% | 0.00% | – |
| Q3 2017 | $266,000 | – | 14,400 | – | 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% |