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Amphastar Pharmaceuticals shares owned by Polaris Capital Management

Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Polaris Capital Management from 13F filings

Historical chart of Polaris Capital Management investment in Amphastar Pharmaceuticals

Tip: Access up to 7 years of quarterly data

All positions including Amphastar Pharmaceuticals held by Polaris Capital Management consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Amphastar Pharmaceuticals by Polaris Capital Management

Quarter filed Position value Share count Share price at filing
2025-09-30 $349k 13k 26.65
2025-06-30 $806k 35k 22.96
2025-03-31 $893k 31k 28.99
2024-12-31 $910k 25k 37.13