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Portolan Capital Management, LLC
> AMPH
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Amphastar Pharmaceuticals, Inc. | AMPH | 182,243 | -99,944 | 10,473,505,000 | 10,465,576,000 | $57,470.00 |
| 09/30/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 282,187 | 7,298 | 7,929,000 | -1,634,000 | $28.10 |
| 06/30/2022 | Amphastar Pharmaceuticals, Inc. | AMPH | 274,889 | 274,889 | 9,563,000 | 9,563,000 | $34.79 |
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