Form4insider filings, from the source

Insider · CIK 0001421339

Richard R. DeLuca

Files at: MRK. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $6.7M · 2net −$6.7M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2025Nov 2025Jan 2026Mar 2026May 2026Jul 2026Sep 2026

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 10, 2026 SForm 4 →Aug 12, 4:10 pm EDTMerck & Co., Inc.MRK45,320$131.12$5,942,369110,167−29.1%
Aug 6, 2026 SForm 4 →Aug 10, 4:28 pm EDTMerck & Co., Inc.MRK6,050$130.38$788,773155,487−3.75%

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.