AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 135 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q4 2018. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $4,440,242 | -22.9% | 96,548 | -3.7% | 0.41% | -23.1% |
| Q2 2023 | $5,758,955 | -0.9% | 100,208 | -35.4% | 0.53% | +6.2% |
| Q1 2023 | $5,813,926 | +20.5% | 155,038 | -10.0% | 0.50% | +22.1% |
| Q4 2022 | $4,826,109 | -13.2% | 172,238 | -12.9% | 0.41% | -18.7% |
| Q3 2022 | $5,557,000 | -19.2% | 197,738 | 0.0% | 0.50% | -8.9% |
| Q2 2022 | $6,879,000 | -18.2% | 197,738 | -15.6% | 0.55% | +1.5% |
| Q1 2022 | $8,412,000 | +1078.2% | 234,338 | +593.3% | 0.54% | +664.8% |
| Q2 2019 | $714,000 | +29.3% | 33,800 | +25.2% | 0.07% | +42.0% |
| Q1 2019 | $552,000 | +22.7% | 27,000 | +19.5% | 0.05% | -5.7% |
| Q4 2018 | $450,000 | – | 22,600 | – | 0.05% | – |
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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% |