Grantham, Mayo, Van Otterloo & Co. LLC

Position in MRK — Merck & Co., Inc.

CIK 1352662 Boston, MA

Back to MRK Full portfolio

Position in MRK

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$843,687,235

+$120,535,773 QoQ

Shares Held

7,013,777

+2.1% QoQ

Ownership

0.284%

of shares outstanding

% of Portfolio

2.17%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 89.91127034691864.ToString("F0")% Shared 0.ToString("F0")% None 10.088729653081357.ToString("F0")%

Common Shares in MRK Over Time

Shares Held

Position Value (USD)

Position in Drug Manufacturers - General

Healthcare · as of Mar 31, 2026

Grantham, Mayo, Van Otterloo & Co. LLC holds $3,657,324,895 across 11 Drug Manufacturers - General names. MRK ranks #2 (23.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	JNJ	Johnson & Johnson	7,278,866	$1,779,246,005
2	MRK	Merck & Co., Inc. This page	7,013,777	$843,687,235
3	LLY	ELI LILLY & Co	749,815	$689,657,342
4	GSK	GSK plc	3,522,566	$194,410,417
5	PFE	Pfizer Inc	2,285,443	$64,175,239
6	NVS	Novartis AG	275,637	$42,103,551
7	BMY	Bristol Myers Squibb Co	432,391	$26,224,514
8	SNY	Sanofi	189,071	$9,109,440

All Filings in MRK

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$843,687,235	7,013,777	+2.1%	Shares	Sole	2026-05-14
2025-12-31	$723,151,462	6,870,145	+3.7%	Shares	Sole	2026-02-17
2025-09-30	$556,065,625	6,625,350	+2.4%	Shares	Sole	2025-11-13
2025-06-30	$512,131,398	6,469,573	-3.2%	Shares	Sole	2025-08-13
2025-03-31	$600,188,856	6,686,596	+8.5%	Shares	Sole	2025-05-14
2024-12-31	$613,321,159	6,165,271	+4.3%	Shares	Sole	2025-02-13
2024-09-30	$671,371,716	5,912,044	+11.0%	Shares	Sole	2024-11-13
2024-06-30	$659,642,549	5,328,292	+12.7%	Shares	Sole	2024-08-13
2024-03-31	$623,735,303	4,727,058	+17.4%	Shares	Sole	2024-05-14
2023-12-31	$438,899,039	4,025,858	-0.1%	Shares	Sole	2024-02-13
2023-09-30	$414,776,902	4,028,916	+11.4%	Shares	Sole	2023-11-13
2023-06-30	$417,462,903	3,617,843	+18.5%	Shares	Sole	2023-08-14
2023-03-31	$324,866,865	3,053,547	-2.8%	Shares	Sole	2023-05-12
2022-12-31	$348,694,880	3,142,811	+1.2%	Shares	Sole	2023-02-13
2022-09-30	$267,545,128	3,106,655	-0.1%	Shares	Sole	2022-11-10
2022-06-30	$283,534,597	3,109,955	-19.2%	Shares	Sole	2022-08-12
2022-03-31	$315,671,211	3,847,303	+1.6%	Shares	Sole	2022-05-13
2021-12-31	$290,264,343	3,787,374	+2.1%	Shares	Sole	2022-02-11
2021-09-30	$278,674,023	3,710,212	+3.9%	Shares	Sole	2021-11-12
2021-06-30	$277,784,952	3,571,878	+8.9%	Shares	Sole	2021-08-12
2021-03-31	$241,324,416	3,280,683	+8.4%	Shares	Sole	2021-05-13
2020-12-31	$236,237,981	3,026,620	+0.4%	Shares	Sole	2021-02-12
2020-09-30	$238,613,067	3,014,664	+1.9%	Shares	Sole	2020-11-13
2020-06-30	$218,383,851	2,959,604	-2.9%	Shares	Sole	2020-08-13
2020-03-31	$223,706,040	3,047,102	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.