Merck & Co., Inc.

Asset Management One Co., Ltd. MRK

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/27/2026

Shares

1,349,973

Value ($000)

143,911

Weight

0.4%

2013 Q2 - 2025 Q4 (29 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	1/27/2026	143,911	0.4%	1,349,973	12/31/2025
2025 Q3	10/22/2025	112,515	0.3%	1,340,576	9/30/2025
2025 Q2	7/31/2025	101,759	0.3%	1,285,487	6/30/2025
2025 Q1	4/23/2025	116,026	0.4%	1,292,621	3/31/2025
2024 Q4	1/30/2025	126,622	0.4%	1,270,065	12/31/2024
2024 Q3	10/30/2024	143,459	0.5%	1,263,286	9/30/2024
2024 Q2	7/18/2024	153,268	0.6%	1,238,029	6/30/2024
2024 Q1	5/2/2024	167,080	0.6%	1,266,240	3/31/2024
2023 Q4	1/24/2024	141,188	0.6%	1,298,041	12/31/2023
2023 Q3	10/19/2023	143,148	0.6%	1,390,462	9/30/2023
2023 Q2	7/31/2023	164,732	0.7%	1,427,612	6/30/2023
2023 Q1	4/25/2023	153,680	0.7%	1,444,498	3/31/2023
2022 Q4	2/6/2023	158,798	0.8%	1,432,884	12/31/2022
2022 Q3	11/4/2022	125,217	0.6%	1,453,988	9/30/2022
2022 Q2	7/29/2022	134,122	0.6%	1,471,125	6/30/2022
2022 Q1	5/13/2022	113,692	0.4%	1,385,639	3/31/2022
2021 Q4	2/9/2022	111,547	0.4%	1,449,822	12/31/2021
2021 Q3	11/2/2021	106,128	0.4%	1,412,968	9/30/2021
2021 Q2	8/3/2021	112,405	0.4%	1,445,373	6/30/2021
2021 Q1	5/14/2021	112,684	0.4%	1,461,730	3/31/2021
2020 Q4	2/12/2021	129,965	0.5%	1,596,034	12/31/2020
2020 Q3	11/13/2020	132,104	0.6%	1,592,567	9/30/2020
2020 Q2	8/14/2020	126,560	0.6%	1,636,632	6/30/2020
2020 Q1	5/14/2020	123,255	0.7%	1,602,008	3/31/2020
2019 Q4	2/14/2020	151,033	0.7%	1,660,617	12/31/2019
2014 Q1	5/5/2014	31,470	0.5%	560,775	3/31/2014
2013 Q4	2/5/2014	25,807	0.4%	517,806	12/31/2013
2013 Q3	2/5/2014	30,904	0.5%	647,031	9/30/2013
2013 Q2	2/12/2014	29,809	0.5%	631,700	6/30/2013