AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 108 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2017. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $204,000 | -16.7% | 10,870 | -14.6% | 0.07% | -15.0% |
| Q4 2017 | $245,000 | +1.7% | 12,730 | -5.6% | 0.08% | 0.0% |
| Q3 2017 | $241,000 | -51.0% | 13,490 | -51.0% | 0.08% | -43.3% |
| Q2 2017 | $492,000 | +3.8% | 27,523 | -15.8% | 0.14% | +24.8% |
| Q1 2017 | $474,000 | -1.7% | 32,683 | +25.0% | 0.11% | +2.7% |
| Q4 2016 | $482,000 | -4.7% | 26,153 | -1.9% | 0.11% | -8.3% |
| Q3 2016 | $506,000 | – | 26,663 | – | 0.12% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Alambic Investment Management, L.P. | 29,423 | $583,000 | 0.44% |
| Matarin Capital Management, LLC | 223,184 | $4,426,000 | 0.34% |
| Summit Global Investments | 42,725 | $847,000 | 0.10% |
| FEDERATED HERMES, INC. | 1,747,921 | $34,661,000 | 0.08% |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. | 347,307 | $6,887,000 | 0.08% |
| MARSHALL WACE, LLP | 413,293 | $8,196,000 | 0.06% |
| BOSTON ADVISORS LLC | 42,365 | $840,000 | 0.04% |
| MARTINGALE ASSET MANAGEMENT L P | 214,444 | $4,254,000 | 0.04% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 177,321 | $3,516,000 | 0.04% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 231,041 | $4,582,000 | 0.04% |