Historical shareholding details of Wellington Management Company LLP holdings in Amphastar Pharmaceuticals Inc (AMPH)

Monthly changes of Wellington Management Company LLP 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
Mar 31, 2025	Wellington Management Company Llp	1,485	0.00%

Feb 28, 2025	Wellington Management Company Llp	1,485	0.00%

Jan 31, 2025	Wellington Management Company Llp	1,377	0.00%

Dec 31, 2024	Wellington Management Company Llp	17,784	0.04%
Dec 31, 2024	Wellington Management Company Llp	1,377	0.00%

Nov 30, 2024	Wellington Management Company Llp	1,377	0.00%

Sep 30, 2024	Wellington Management Company Llp	19,723	0.04%