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$MRK:NYSE · MERCK & CO INC NEW COM

Sector: health

Conviction from: S&P

Merck & Co. is a pharmaceutical company that develops and markets prescription medicines and vaccines across oncology, vaccines, infectious diseases, and other areas, including its cancer drug Keytruda, and also has an animal health business.

2 tracked filer(s) hold this · 0 opened, 0 added, 2 trimmed in 31-MAR-2026

Aggregate 13FScore 55 — mean of 2 scored holder(s). Higher = the smart money in this name has the better track record.

Filer13FScoreThis quarterSharesValue% of their book
Bill Nygren / Oakmark (Harris Associates)68Trimmed -12%12,366,933$1,487,618,4012.0%
Ancora42Trimmed -2%22,292$2,681,5380.1%

Beyond 13F — activists, insiders, politicians & research

Congressional trades all politician trades →

4 disclosed trade(s) by 4 filer(s).

Trade dateWhoTypeAmount
2026-03-27Alan Armstrong senateSELL$15,001 - $50,000PTR
2026-02-04Josh Gottheimer NJ05BUY$1,001 - $15,000PTR
2025-12-19Gilbert Cisneros CA31BUY$1,001 - $15,000PTR
2025-12-18Julie Johnson TX32SELL$1,001 - $15,000PTR

Trump & executive branch trades all Trump/exec trades →

11 disclosed trade(s) by 1 filer(s).

Trade dateWhoTypeAmount
2026-07-01Trump, Donald J PresidentSELL$1,001 - $15,000PTR
2026-07-01Trump, Donald J PresidentBUY$15,001 - $50,000PTR
2026-07-01Trump, Donald J PresidentSELL$15,001 - $50,000PTR
2026-07-01Trump, Donald J PresidentSELL$1,004 - $15,000PTR
2026-07-01Trump, Donald J PresidentSELL$50,001 - $100,000PTR
2026-07-01Trump, Donald J PresidentBUY$15,001 - $50,000PTR
2026-05-14Trump, Donald J PresidentBUY$1,001 - $15,000PTR
2026-05-14Trump, Donald J PresidentBUY$15,001 - $50,000PTR
2026-05-14Trump, Donald J PresidentBUY$50,004 - $100,000PTR
2026-05-14Trump, Donald J PresidentBUY$15,001 - $50,000PTR
2026-05-14Trump, Donald J PresidentBUY$1,001 -$15,000PTR

Every tracked holder of this name, sorted new → added → flat → trimmed. Shares = reported 13F share count; Value as reported (a few managers file values in $thousands). Generated 2026-07-20.