AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 145 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $345,000 | +70.8% | 14,800 | +39.6% | 0.12% | +78.8% |
| Q3 2021 | $202,000 | -7.8% | 10,600 | -11.4% | 0.07% | -50.7% |
| Q1 2021 | $219,000 | -30.3% | 11,961 | -23.5% | 0.13% | -30.2% |
| Q4 2020 | $314,000 | +4.0% | 15,627 | -3.1% | 0.19% | -14.7% |
| Q3 2020 | $302,000 | -29.8% | 16,127 | -15.7% | 0.22% | -58.6% |
| Q2 2020 | $430,000 | -1.8% | 19,127 | -18.1% | 0.54% | +47.8% |
| Q1 2018 | $438,000 | – | 23,341 | – | 0.37% | – |
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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% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 177,321 | $3,516,000 | 0.04% |
| MARTINGALE ASSET MANAGEMENT L P | 214,444 | $4,254,000 | 0.04% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 231,041 | $4,582,000 | 0.04% |