Historical shareholding details of CAMBRIDGE Invest RESEARCH ADVISORS, INC. holdings in Amphastar Pharmaceuticals Inc (AMPH)

Monthly changes of CAMBRIDGE Invest RESEARCH ADVISORS, INC. shareholding in Amphastar Pharmaceuticals Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Dec 31, 2024	Cambridge Invest Research Advisors, Inc.	12,096	0.03%

Sep 30, 2024	Cambridge Invest Research Advisors, Inc.	11,915	0.02%

Jun 30, 2024	Cambridge Invest Research Advisors, Inc.	11,870	0.02%