MRK Filing
4Filing Date: Aug 7, 2026

Merck & Co., Inc. (MRK) · Insider Trading (Form 4) SEC Filing

Statement of Changes in Beneficial Ownership

descriptionView SEC Filing
ACC: 0000310158-26-000213open_in_new
Total Value$1.97M
Trades1
Insiders1

Transaction Details

Guindo Chirfi
EVP, Access, Policy & Comms·Direct
Sell · Dispose
Common Stock
Shares-15.00K
Price$131.00
Total Value$1.97M
Shares Owned After46.61K
Transaction DateAug 6, 2026

Post-Transaction Holdings

Guindo Chirfi
SecuritySharesChange
Common Stock46.61K-15.00K (-24.35%)
Original SEC Filing Textexpand_more
=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-06 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Merck & Co., Inc. (MRK) CIK: 0000310158 --- Reporting Owner --- Name: Guindo Chirfi CIK: 0001722753 Role: Officer (EVP, Access, Policy & Comms) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-08-06 | Code: S (Open market sale) Shares: -15,000 | Price: $131.00 Total Value: $1,965,000.00 Shares Owned After: 46,613.127 | Ownership: D (Direct) --- Signature --- /s/ /s/ Kelly Grez, as attorney-in-fact for Chirfi Guindo (2026-08-07)

keid analysis is for reference only and does not constitute investment advice.