AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 145 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q2 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,812,893 | -45.2% | 82,907 | -31.5% | 0.03% | -39.1% |
| Q2 2023 | $6,955,364 | +209.3% | 121,026 | +101.8% | 0.05% | +228.6% |
| Q1 2023 | $2,249,032 | +475.0% | 59,974 | +329.6% | 0.01% | +600.0% |
| Q4 2022 | $391,159 | -56.9% | 13,960 | -56.8% | 0.00% | -60.0% |
| Q3 2022 | $908,000 | -76.7% | 32,330 | -71.2% | 0.01% | -79.2% |
| Q2 2022 | $3,902,000 | -22.5% | 112,157 | -20.0% | 0.02% | -42.9% |
| Q1 2022 | $5,034,000 | +461.2% | 140,229 | +264.1% | 0.04% | +366.7% |
| Q4 2021 | $897,000 | +222.7% | 38,509 | +163.7% | 0.01% | +125.0% |
| Q3 2021 | $278,000 | -32.4% | 14,604 | -28.3% | 0.00% | -20.0% |
| Q2 2021 | $411,000 | +49.5% | 20,363 | +35.7% | 0.01% | +25.0% |
| Q1 2021 | $275,000 | -70.1% | 15,006 | -63.4% | 0.00% | -75.0% |
| Q2 2020 | $921,000 | +328.4% | 41,009 | +183.2% | 0.02% | +166.7% |
| Q1 2020 | $215,000 | +8.6% | 14,482 | +41.1% | 0.01% | +50.0% |
| Q4 2019 | $198,000 | -77.0% | 10,264 | -76.4% | 0.00% | -76.5% |
| Q3 2019 | $862,000 | +26.0% | 43,457 | +34.1% | 0.02% | +30.8% |
| Q2 2019 | $684,000 | +183.8% | 32,405 | +167.7% | 0.01% | +18.2% |
| Q4 2018 | $241,000 | -18.3% | 12,105 | -37.4% | 0.01% | -26.7% |
| Q2 2018 | $295,000 | +1240.9% | 19,324 | +1620.7% | 0.02% | +1400.0% |
| Q4 2017 | $22,000 | +1000.0% | 1,123 | +1190.8% | 0.00% | – |
| Q2 2017 | $2,000 | -98.8% | 87 | -99.4% | 0.00% | -100.0% |
| Q4 2014 | $163,000 | – | 14,073 | – | 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% |