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
| Security | Shares | Change |
|---|---|---|
| Common Stock | 46.61K | -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)