AMPHASTAR PHARMACEUTICALS IN's ticker is AMPH and the CUSIP is 03209R103. A total of 267 filers reported holding AMPHASTAR PHARMACEUTICALS IN in Q1 2024. The put-call ratio across all filers is 1.01 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2024 | $777,080 | +95.2% | 19,427 | +201.8% | 0.00% | +33.3% |
| Q4 2023 | $398,067 | -64.7% | 6,436 | -73.7% | 0.00% | -72.7% |
| Q3 2023 | $1,126,893 | -18.7% | 24,503 | +1.6% | 0.01% | -35.3% |
| Q2 2023 | $1,385,429 | +230804.8% | 24,107 | +50.6% | 0.02% | +88.9% |
| Q1 2023 | $600 | -99.9% | 16,010 | -47.8% | 0.01% | -67.9% |
| Q2 2022 | $1,067,000 | -26.4% | 30,676 | -24.1% | 0.03% | -17.6% |
| Q1 2022 | $1,450,000 | +42.4% | 40,395 | -7.6% | 0.03% | +100.0% |
| Q4 2021 | $1,018,000 | +23.2% | 43,712 | +0.6% | 0.02% | +30.8% |
| Q3 2021 | $826,000 | +9.4% | 43,459 | +16.1% | 0.01% | -7.1% |
| Q2 2021 | $755,000 | -5.9% | 37,433 | -14.5% | 0.01% | -12.5% |
| Q1 2021 | $802,000 | +52.8% | 43,789 | +67.6% | 0.02% | +6.7% |
| Q4 2020 | $525,000 | +2.3% | 26,122 | -26.2% | 0.02% | -6.2% |
| Q1 2017 | $513,000 | +5.3% | 35,387 | +33.9% | 0.02% | +23.1% |
| Q4 2016 | $487,000 | -3.9% | 26,427 | -1.2% | 0.01% | +8.3% |
| Q3 2016 | $507,000 | +3.9% | 26,743 | -11.7% | 0.01% | +20.0% |
| Q2 2016 | $488,000 | +99.2% | 30,276 | +48.5% | 0.01% | +66.7% |
| Q1 2016 | $245,000 | – | 20,389 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Summit Global Investments | 58,640 | $870,000 | 0.13% |
| FEDERATED HERMES, INC. | 2,600,120 | $38,586,000 | 0.11% |
| ROTHSCHILD & CO ASSET MANAGEMENT US INC. | 284,328 | $4,219,000 | 0.07% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 291,352 | $4,324,000 | 0.05% |
| MARSHALL WACE, LLP | 301,910 | $4,481,000 | 0.04% |
| MARTINGALE ASSET MANAGEMENT L P | 212,817 | $3,159,000 | 0.04% |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 171,266 | $2,542,000 | 0.03% |
| WINTON GROUP Ltd | 82,402 | $1,223,000 | 0.03% |
| EAGLE ASSET MANAGEMENT INC | 317,988 | $4,718,000 | 0.03% |
| Engineers Gate Manager LP | 24,007 | $356,000 | 0.03% |