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 | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $0 | -100.0% | 15 | -96.2% | 0.00% | – |
| Q3 2019 | $5,000 | +25.0% | 396 | 0.0% | 0.00% | – |
| Q2 2019 | $4,000 | -20.0% | 396 | 0.0% | 0.00% | – |
| Q1 2019 | $5,000 | -28.6% | 396 | 0.0% | 0.00% | – |
| Q4 2018 | $7,000 | -12.5% | 396 | 0.0% | 0.00% | – |
| Q3 2018 | $8,000 | -46.7% | 396 | -47.2% | 0.00% | – |
| Q2 2018 | $15,000 | 0.0% | 750 | 0.0% | 0.00% | – |
| Q1 2018 | $15,000 | +114.3% | 750 | +42.3% | 0.00% | – |
| Q4 2017 | $7,000 | -30.0% | 527 | 0.0% | 0.00% | – |
| Q3 2017 | $10,000 | 0.0% | 527 | 0.0% | 0.00% | – |
| Q2 2017 | $10,000 | -37.5% | 527 | -23.5% | 0.00% | – |
| Q1 2017 | $16,000 | +45.5% | 689 | +123.7% | 0.00% | – |
| Q4 2016 | $11,000 | +83.3% | 308 | +25.7% | 0.00% | – |
| Q3 2016 | $6,000 | -14.3% | 245 | -15.5% | 0.00% | – |
| Q2 2016 | $7,000 | -36.4% | 290 | -37.2% | 0.00% | – |
| Q1 2016 | $11,000 | -62.1% | 462 | -52.1% | 0.00% | -100.0% |
| Q4 2015 | $29,000 | -21.6% | 965 | +2.0% | 0.00% | 0.0% |
| Q3 2015 | $37,000 | -36.2% | 946 | +12.6% | 0.00% | 0.0% |
| Q2 2015 | $58,000 | +205.3% | 840 | +142.8% | 0.00% | – |
| Q1 2015 | $19,000 | +171.4% | 346 | +123.2% | 0.00% | – |
| Q4 2014 | $7,000 | – | 155 | +933.3% | 0.00% | – |
| Q3 2014 | $0 | – | 15 | 0.0% | 0.00% | – |
| Q2 2014 | $0 | – | 15 | 0.0% | 0.00% | – |
| Q1 2014 | $0 | – | 15 | 0.0% | 0.00% | – |
| Q4 2013 | $0 | – | 15 | -16.7% | 0.00% | – |
| Q3 2013 | $0 | – | 18 | 0.0% | 0.00% | – |
| Q2 2013 | $0 | – | 18 | – | 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% |