AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 221 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2022. The put-call ratio across all filers is 12.07 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $760,813 | +17.0% | 16,543 | -28.7% | 0.10% | +28.9% |
| Q4 2022 | $650,428 | -46.7% | 23,213 | -46.6% | 0.08% | -20.0% |
| Q3 2022 | $1,221,000 | -46.9% | 43,450 | -34.3% | 0.10% | -49.7% |
| Q2 2022 | $2,300,000 | +158.1% | 66,113 | +166.4% | 0.19% | +152.0% |
| Q1 2022 | $891,000 | +83.0% | 24,813 | +18.8% | 0.08% | +74.4% |
| Q4 2021 | $487,000 | +3.2% | 20,891 | -15.9% | 0.04% | -24.6% |
| Q3 2021 | $472,000 | +68.6% | 24,850 | +78.6% | 0.06% | +32.6% |
| Q2 2021 | $280,000 | – | 13,910 | – | 0.04% | – |
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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% |