AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 133 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2019. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $16,278,575 | -24.4% | 353,959 | -5.5% | 0.01% | -14.3% |
| Q2 2023 | $21,523,607 | +180210.0% | 374,519 | +17.7% | 0.01% | +75.0% |
| Q1 2023 | $11,937 | +10.9% | 318,324 | -17.1% | 0.00% | 0.0% |
| Q4 2022 | $10,759 | -99.9% | 384,005 | -7.8% | 0.00% | -20.0% |
| Q3 2022 | $11,706,000 | -43.1% | 416,607 | -29.5% | 0.01% | -37.5% |
| Q2 2022 | $20,555,000 | +21.6% | 590,824 | +23.9% | 0.01% | +60.0% |
| Q1 2022 | $16,899,000 | +104.5% | 476,675 | +24.4% | 0.01% | +150.0% |
| Q4 2021 | $8,262,000 | +20.2% | 383,227 | +2.5% | 0.00% | 0.0% |
| Q3 2021 | $6,871,000 | -18.7% | 374,052 | -10.8% | 0.00% | -33.3% |
| Q2 2021 | $8,450,000 | +163.0% | 419,137 | +139.0% | 0.00% | +200.0% |
| Q1 2021 | $3,213,000 | -14.4% | 175,388 | -6.0% | 0.00% | 0.0% |
| Q4 2020 | $3,752,000 | -2.5% | 186,560 | -9.1% | 0.00% | 0.0% |
| Q3 2020 | $3,847,000 | -7.2% | 205,186 | +11.2% | 0.00% | -50.0% |
| Q2 2020 | $4,145,000 | +102.5% | 184,535 | +33.8% | 0.00% | +100.0% |
| Q1 2020 | $2,047,000 | -23.3% | 137,955 | -0.3% | 0.00% | 0.0% |
| Q4 2019 | $2,669,000 | -55.6% | 138,345 | -54.4% | 0.00% | -50.0% |
| Q3 2019 | $6,016,000 | -50.4% | 303,371 | -47.2% | 0.00% | -60.0% |
| Q2 2019 | $12,134,000 | – | 574,783 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| EAM Investors, LLC | 173,018 | $3,187,000 | 0.42% |
| GLOBEFLEX CAPITAL L P | 50,686 | $934,000 | 0.23% |
| KALMAR INVESTMENTS INC /DE/ | 240,648 | $4,433,000 | 0.23% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 63,661 | $1,173,000 | 0.19% |
| OBERWEIS ASSET MANAGEMENT INC/ | 27,200 | $501,000 | 0.15% |
| Invictus RG | 11,950 | $220,000 | 0.15% |
| ACADIAN ASSET MANAGEMENT LLC | 1,502,151 | $27,668,000 | 0.13% |
| FOX RUN MANAGEMENT, L.L.C. | 12,600 | $232,000 | 0.12% |
| Piermont Capital Management Inc. | 26,153 | $482,000 | 0.11% |
| FEDERATED HERMES, INC. | 1,344,684 | $24,769,000 | 0.07% |