AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 206 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2022. The put-call ratio across all filers is 0.50 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $260,167 | -21.7% | 4,527 | -48.9% | 0.03% | -25.6% |
| Q1 2023 | $332,437 | +28.1% | 8,865 | -4.3% | 0.04% | +14.7% |
| Q4 2022 | $259,465 | -6.7% | 9,260 | -6.3% | 0.03% | -17.1% |
| Q3 2022 | $278,000 | -19.0% | 9,878 | +0.3% | 0.04% | -14.6% |
| Q2 2022 | $343,000 | +0.3% | 9,846 | +3.3% | 0.05% | +14.3% |
| Q1 2022 | $342,000 | +53.4% | 9,535 | -0.3% | 0.04% | +44.8% |
| Q4 2021 | $223,000 | -7.5% | 9,565 | -20.0% | 0.03% | -19.4% |
| Q2 2021 | $241,000 | +10.6% | 11,949 | +0.3% | 0.04% | -37.9% |
| Q1 2021 | $218,000 | -6.4% | 11,913 | +2.8% | 0.06% | -7.9% |
| Q4 2020 | $233,000 | – | 11,592 | – | 0.06% | – |
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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% |