AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 218 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is 0.26 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2024 | $6 | -33.3% | 154 | -20.6% | 0.00% | – |
| Q1 2024 | $9 | -25.0% | 194 | 0.0% | 0.00% | – |
| Q4 2023 | $12 | +33.3% | 194 | 0.0% | 0.00% | – |
| Q3 2023 | $9 | -18.2% | 194 | 0.0% | 0.00% | – |
| Q2 2023 | $11 | +57.1% | 194 | 0.0% | 0.00% | – |
| Q1 2023 | $7 | +40.0% | 194 | 0.0% | 0.00% | – |
| Q4 2022 | $5 | -99.9% | 194 | +17.6% | 0.00% | – |
| Q3 2022 | $5,000 | -16.7% | 165 | 0.0% | 0.00% | – |
| Q2 2022 | $6,000 | 0.0% | 165 | 0.0% | 0.00% | – |
| Q1 2022 | $6,000 | +50.0% | 165 | 0.0% | 0.00% | – |
| Q4 2021 | $4,000 | +33.3% | 165 | 0.0% | 0.00% | – |
| Q3 2021 | $3,000 | +50.0% | 165 | +85.4% | 0.00% | – |
| Q2 2021 | $2,000 | 0.0% | 89 | 0.0% | 0.00% | – |
| Q1 2021 | $2,000 | 0.0% | 89 | 0.0% | 0.00% | – |
| Q4 2020 | $2,000 | -60.0% | 89 | -66.4% | 0.00% | – |
| Q3 2020 | $5,000 | +25.0% | 265 | 0.0% | 0.00% | – |
| Q2 2020 | $4,000 | 0.0% | 265 | 0.0% | 0.00% | – |
| Q1 2020 | $4,000 | -20.0% | 265 | 0.0% | 0.00% | – |
| Q4 2019 | $5,000 | -16.7% | 265 | -10.5% | 0.00% | – |
| Q3 2019 | $6,000 | 0.0% | 296 | 0.0% | 0.00% | – |
| Q2 2019 | $6,000 | +20.0% | 296 | +16.5% | 0.00% | – |
| Q1 2019 | $5,000 | 0.0% | 254 | 0.0% | 0.00% | – |
| Q4 2018 | $5,000 | 0.0% | 254 | 0.0% | 0.00% | – |
| Q3 2018 | $5,000 | +25.0% | 254 | 0.0% | 0.00% | – |
| Q2 2018 | $4,000 | -20.0% | 254 | 0.0% | 0.00% | – |
| Q1 2018 | $5,000 | – | 254 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| MQS Management LLC | 10,935 | $255,000 | 0.41% |
| GLOBEFLEX CAPITAL L P | 144,692 | $3,370,000 | 0.34% |
| CORNERCAP INVESTMENT COUNSEL INC | 58,975 | $1,374,000 | 0.20% |
| Factorial Partners, LLC | 10,900 | $254,000 | 0.17% |
| FEDERATED HERMES, INC. | 3,464,335 | $80,684,000 | 0.15% |
| Campbell & CO Investment Adviser LLC | 14,800 | $345,000 | 0.12% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 611,462 | $14,241,000 | 0.08% |
| Summit Global Investments | 45,900 | $1,069,000 | 0.07% |
| RENAISSANCE GROUP LLC | 63,559 | $1,480,000 | 0.06% |
| PDT Partners, LLC | 33,459 | $779,000 | 0.06% |