AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 105 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2016. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,262,104 | -18.9% | 27,443 | +1.3% | 0.01% | -16.7% |
| Q2 2023 | $1,556,575 | +56.8% | 27,085 | +2.3% | 0.01% | +50.0% |
| Q1 2023 | $992,813 | +254.3% | 26,475 | +164.8% | 0.00% | +300.0% |
| Q4 2022 | $280,200 | -15.1% | 10,000 | -14.9% | 0.00% | -50.0% |
| Q3 2022 | $330,000 | -19.3% | 11,755 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $409,000 | +102.5% | 11,755 | +108.6% | 0.00% | +100.0% |
| Q1 2022 | $202,000 | -24.6% | 5,635 | -60.0% | 0.00% | -50.0% |
| Q3 2016 | $268,000 | +22.4% | 14,105 | +3.8% | 0.00% | 0.0% |
| Q2 2016 | $219,000 | +21.7% | 13,585 | -9.6% | 0.00% | 0.0% |
| Q1 2016 | $180,000 | – | 15,035 | – | 0.00% | – |
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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% |