Historical shareholding details of PRIMECAP Management Company holdings in Merck & Co Inc (MRK)

Monthly changes of PRIMECAP Management Company shareholding in Merck & Co Inc over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Jun 30, 2025	Primecap Management Company	51,900	0.00%

Mar 31, 2025	Primecap Management Company	57,500	0.00%

Dec 31, 2024	Primecap Management Company	60,400	0.00%

Sep 30, 2024	Primecap Management Company	66,800	0.00%

Jun 30, 2024	Primecap Management Company	72,800	0.00%

Mar 31, 2024	Primecap Management Company	76,000	0.00%

Dec 31, 2023	Primecap Management Company	84,500	0.00%

Sep 30, 2023	Primecap Management Company	93,000	0.00%

Jun 30, 2023	Primecap Management Company	96,100	0.00%

Mar 31, 2023	Primecap Management Company	100,900	0.00%