AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 211 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2022. The put-call ratio across all filers is 0.20 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $538 | -19.9% | 11,691 | 0.0% | 0.01% | -16.7% |
| Q2 2023 | $672 | +62.7% | 11,691 | +6.1% | 0.01% | +50.0% |
| Q1 2023 | $413 | +34.1% | 11,021 | 0.0% | 0.00% | +33.3% |
| Q4 2022 | $308 | -99.9% | 11,021 | 0.0% | 0.00% | -25.0% |
| Q3 2022 | $309,000 | -16.7% | 11,021 | +6.7% | 0.00% | 0.0% |
| Q1 2022 | $371,000 | +53.9% | 10,331 | 0.0% | 0.00% | +100.0% |
| Q4 2021 | $241,000 | +23.0% | 10,331 | 0.0% | 0.00% | 0.0% |
| Q3 2021 | $196,000 | -5.8% | 10,331 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $208,000 | +10.1% | 10,331 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $189,000 | +34.0% | 10,331 | +46.9% | 0.00% | +100.0% |
| Q4 2020 | $141,000 | +6.8% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $132,000 | -16.5% | 7,031 | 0.0% | 0.00% | -50.0% |
| Q2 2020 | $158,000 | +51.9% | 7,031 | 0.0% | 0.00% | +100.0% |
| Q1 2020 | $104,000 | -23.5% | 7,031 | 0.0% | 0.00% | -50.0% |
| Q4 2019 | $136,000 | -2.2% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $139,000 | -6.1% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $148,000 | +2.8% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $144,000 | +2.9% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $140,000 | +3.7% | 7,031 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $135,000 | +26.2% | 7,031 | 0.0% | 0.00% | +100.0% |
| Q2 2018 | $107,000 | -18.9% | 7,031 | 0.0% | 0.00% | -50.0% |
| Q1 2018 | $132,000 | -12.0% | 7,031 | -9.9% | 0.00% | 0.0% |
| Q4 2017 | $150,000 | -33.9% | 7,800 | -38.6% | 0.00% | -33.3% |
| Q3 2017 | $227,000 | 0.0% | 12,700 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $227,000 | +23.4% | 12,700 | 0.0% | 0.00% | +50.0% |
| Q1 2017 | $184,000 | -21.4% | 12,700 | 0.0% | 0.00% | -33.3% |
| Q4 2016 | $234,000 | -2.9% | 12,700 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $241,000 | – | 12,700 | – | 0.00% | – |
Download | ||||||
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% |