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 | $159 | 0.0% | 2,770 | 0.0% | 0.00% | 0.0% |
| Q2 2023 | $159 | +33.6% | 2,770 | -12.8% | 0.00% | 0.0% |
| Q1 2023 | $119 | +33.7% | 3,178 | 0.0% | 0.00% | – |
| Q4 2022 | $89 | -99.9% | 3,178 | 0.0% | 0.00% | – |
| Q3 2022 | $89,000 | -19.8% | 3,178 | 0.0% | 0.00% | -100.0% |
| Q2 2022 | $111,000 | -86.3% | 3,178 | -92.4% | 0.00% | -80.0% |
| Q4 2019 | $811,000 | -2.6% | 42,019 | 0.0% | 0.01% | -16.7% |
| Q3 2019 | $833,000 | -6.1% | 42,019 | 0.0% | 0.01% | -14.3% |
| Q2 2019 | $887,000 | -21.9% | 42,019 | -24.4% | 0.01% | -22.2% |
| Q1 2019 | $1,136,000 | +2.6% | 55,607 | 0.0% | 0.01% | -25.0% |
| Q4 2018 | $1,107,000 | -19.7% | 55,607 | -22.4% | 0.01% | +20.0% |
| Q3 2018 | $1,379,000 | +41.4% | 71,653 | +12.2% | 0.01% | +25.0% |
| Q2 2018 | $975,000 | -15.1% | 63,871 | +4.3% | 0.01% | -27.3% |
| Q1 2018 | $1,148,000 | +29.7% | 61,241 | +33.1% | 0.01% | +37.5% |
| Q4 2017 | $885,000 | +7.7% | 46,016 | 0.0% | 0.01% | +14.3% |
| Q3 2017 | $822,000 | 0.0% | 46,016 | 0.0% | 0.01% | -12.5% |
| Q2 2017 | $822,000 | +23.2% | 46,016 | 0.0% | 0.01% | +33.3% |
| Q1 2017 | $667,000 | +22.6% | 46,016 | +55.7% | 0.01% | +20.0% |
| Q4 2016 | $544,000 | – | 29,556 | – | 0.01% | – |
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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% |