ValuationViz

MRK fund manager activity

Merck & Company, Inc · NYSE. Reported by 28 tracked fund managers in their 13F filings, Q2 2013 to Q3 2026.

Q3 2026

ManagerActivitySharesValue% of portfolioFiled
David Katz - Matrix Asset AdvisorsTrimmed1,621$235,5480.02%Oct 13, 2026

Q2 2026

ManagerActivitySharesValue% of portfolioFiled
Ron Baron - Baron CapitalTrimmed22,000$2,827,0000.00%Aug 14, 2026
Sarah Ketterer - Causeway Capital ManagementAdded954,932$122,708,7871.33%Aug 13, 2026
Dodge & Cox FundsTrimmed135,750$17,443,8750.01%Aug 13, 2026
Prem Watsa - Fairfax Financial HoldingsNo change172,900$22,198,6310.84%Aug 14, 2026
Ken Fisher - Fisher Asset ManagementAdded38,516,263$4,949,339,9621.47%Aug 4, 2026
Jeremy Grantham - GMOTrimmed6,785,008$871,873,7321.96%Aug 13, 2026
Thomas Russo - Gardner Russo & QuinnTrimmed1,642$211,0060.00%Aug 13, 2026
Joel Greenblatt - Gotham Asset ManagementAdded528,937$67,968,4050.16%Aug 14, 2026
Kahn Brothers GroupTrimmed218,182$28,036,4274.43%Aug 17, 2026
Mairs & Power FundsAdded51,519$6,620,1920.06%Aug 14, 2026
David Katz - Matrix Asset AdvisorsNo change1,671$214,7240.02%Jul 15, 2026
Bill Nygren - Oakmark FundsTrimmed12,073,109$1,551,394,4992.06%Aug 14, 2026
Richard Pzena - Pzena Investment ManagementNo change2,511$322,6640.00%Aug 7, 2026
Christopher Bloomstran - Semper AugustusNo change44,633$5,735,3410.65%Aug 14, 2026

Older quarters