Who Owns MERCK & CO (MRK)? -- Institutional Holders (2026-06-30)

157 institutions reported holding $1.19B of MERCK & CO (MRK) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($347.3M), Sarasin & Partners LLP ($94.7M), OLD REPUBLIC INTERNATIONAL CORP ($90.7M), Czech National Bank ($90.3M), CACTI ASSET MANAGEMENT LLC ($82.9M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1Assenagon Asset Management S.A.$347.3M2.7MAdded
2Sarasin & Partners LLP$94.7M736,662Trimmed
3OLD REPUBLIC INTERNATIONAL CORP$90.7M705,600Hold
4Czech National Bank$90.3M703,007Added
5CACTI ASSET MANAGEMENT LLC$82.9M645,299Hold
6ROCKLAND TRUST CO$63.0M490,049Trimmed
7PensionDanmark Pensionsforsikringsaktieselskab$59.5M462,927New
8ABNER HERRMAN & BROCK LLC$26.0M202,424Trimmed
9EASTERN BANK$24.6M191,760Trimmed
10MassMutual Private Wealth & Trust, FSB$19.4M150,778Trimmed
11BRIGHT ROCK CAPITAL MANAGEMENT, LLC$18.2M142,000Hold
12Eldred Rock Partners, LLC$15.0M116,413Added
13Matthew Goff Investment Advisor, LLC$14.8M115,209Trimmed
14CX Institutional$12.2M95,317Added
15GAMMA Investing LLC$12.2M94,992Added
16NEVILLE RODIE & SHAW INC$11.3M87,699Trimmed
17CANANDAIGUA NATIONAL BANK & TRUST CO$10.8M83,853Trimmed
18Hennion & Walsh Asset Management, Inc.$9.3M72,515Trimmed
19Dynamic Advisor Solutions LLC$8.3M64,313Added
20CoreCap Advisors, LLC$7.9M61,485Added
21Chesley Taft & Associates LLC$7.2M55,810Trimmed
22Valeo Financial Advisors, LLC$7.0M54,116Added
23180 WEALTH ADVISORS, LLC$5.8M44,833Added
24Trilogy Capital Inc.$5.1M40,029Trimmed
25St. Louis Financial Planners Asset Management, LLC$5.0M38,510Added

Source: SEC Form 13F filings · as of 2026-06-30