Historical shareholding details of PRIMECAP Management Company holdings in AMGEN Inc. (AMGN)

Monthly changes of PRIMECAP Management Company shareholding in AMGEN Inc. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Mar 31, 2025	Primecap Management Company	12,388,295	2.30%

Dec 31, 2024	Primecap Management Company	13,002,125	2.42%

Sep 30, 2024	Primecap Management Company	14,255,941	2.65%

Jun 30, 2024	Primecap Management Company	14,447,127	2.69%

Mar 31, 2024	Primecap Management Company	14,601,958	2.72%

Dec 31, 2023	Primecap Management Company	14,591,468	2.72%

Sep 30, 2023	Primecap Management Company	14,732,458	2.75%

Jun 30, 2023	Primecap Management Company	14,736,435	2.75%

Mar 31, 2023	Primecap Management Company	15,112,703	2.83%