Merck & Co., Inc. 4

Merck EVP Chirfi Guindo sold 15,000 shares of MRK common stock at $131.00 per share on 2026-08-06.

On August 6, 2026, Chirfi Guindo, EVP, Access, Policy & Comms of Merck & Co., Inc., sold 15,000 shares of Merck common stock at $131.00 per share in an open market transaction, for total proceeds of approximately $1.97 million. Following the sale, Guindo’s direct ownership stands at 46,613.127 shares. Using the reported transaction price as a proxy, the remaining stake is valued at roughly $6.1 million, indicating that while this was a sizable sale, the insider continues to hold a meaningful equity position in the company.

Filing Facts

CIK

310158

Ticker

MRK

Form

4

Source Type

fda

Accession

0000310158-26-000213

Alert Tier

7