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Amphastar Pharmaceuticals shares owned by Round Rock Advisors

Quarter-by-quarter ownership of Amphastar Pharmaceuticals (AMPH) shares owned by Round Rock Advisors from 13F filings

Historical chart of Round Rock Advisors investment in Amphastar Pharmaceuticals

Tip: Access up to 7 years of quarterly data

All positions including Amphastar Pharmaceuticals held by Round Rock Advisors consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Amphastar Pharmaceuticals by Round Rock Advisors

Quarter filed Position value Share count Share price at filing
2025-09-30 $212k 8.6k 24.72

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View all positions for Round Rock Advisors

Top funds holding Amphastar Pharmaceuticals

BlackRock
Vanguard Group
TD Asset Management
Dimensional Fund Advisors
State Street Corporation
Hanna Zanoni
Btim
Epoch Investment Partners
Geode Capital Management
Marshall Wace
Millennium Management
Morgan Stanley
Renaissance Technologies
D. E. Shaw & Co
Systematic Financial Management

View all funds holding Amphastar Pharmaceuticals