AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 250 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is 1.02 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $520,469 | -22.7% | 11,317 | -3.4% | 0.01% | -12.5% |
| Q2 2023 | $673,376 | +48.2% | 11,717 | -3.3% | 0.01% | +33.3% |
| Q1 2023 | $454,388 | +29.2% | 12,117 | -3.4% | 0.01% | +20.0% |
| Q4 2022 | $351,567 | +0.7% | 12,547 | +1.1% | 0.01% | 0.0% |
| Q3 2022 | $349,000 | -18.8% | 12,414 | +0.4% | 0.01% | -28.6% |
| Q2 2022 | $430,000 | -13.0% | 12,360 | -10.2% | 0.01% | +40.0% |
| Q1 2022 | $494,000 | +49.7% | 13,760 | -2.8% | 0.01% | +25.0% |
| Q4 2021 | $330,000 | +17.4% | 14,160 | -4.1% | 0.00% | +33.3% |
| Q3 2021 | $281,000 | -6.3% | 14,760 | -0.7% | 0.00% | 0.0% |
| Q2 2021 | $300,000 | +10.3% | 14,860 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $272,000 | -7.2% | 14,860 | +2.1% | 0.00% | -25.0% |
| Q4 2020 | $293,000 | +5.8% | 14,560 | -1.6% | 0.00% | 0.0% |
| Q3 2020 | $277,000 | -10.6% | 14,790 | +7.3% | 0.00% | -20.0% |
| Q2 2020 | $310,000 | +51.2% | 13,790 | 0.0% | 0.01% | +25.0% |
| Q1 2020 | $205,000 | -22.9% | 13,790 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $266,000 | -2.6% | 13,790 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $273,000 | -4.9% | 13,790 | +1.5% | 0.00% | 0.0% |
| Q2 2019 | $287,000 | +4.7% | 13,590 | +1.5% | 0.00% | 0.0% |
| Q1 2019 | $274,000 | +4.6% | 13,390 | +1.8% | 0.00% | 0.0% |
| Q4 2018 | $262,000 | – | 13,148 | – | 0.00% | – |
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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% |