AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2016. The put-call ratio across all filers is 1.93 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $517,000 | +8.8% | 27,593 | +11.8% | 0.03% | +13.3% |
| Q4 2017 | $475,000 | +16.1% | 24,685 | +7.8% | 0.03% | +15.4% |
| Q3 2017 | $409,000 | -41.6% | 22,903 | -41.5% | 0.03% | -46.9% |
| Q2 2017 | $700,000 | -23.1% | 39,168 | -37.6% | 0.05% | -22.2% |
| Q1 2017 | $910,000 | +101.8% | 62,787 | +156.4% | 0.06% | +96.9% |
| Q4 2016 | $451,000 | -0.7% | 24,484 | +2.3% | 0.03% | -3.0% |
| Q3 2016 | $454,000 | – | 23,940 | – | 0.03% | – |
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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% |