Merck & Co., Inc. 4

Merck EVP & Chief Information & Digital Officer David Michael Williams exercised 52,847 stock options and sold the same 52,847 Merck (MRK) common shares on August 5, 2026, leaving his direct ownership at 31,716.037 shares.

On August 5, 2026, David Michael Williams, EVP and Chief Information & Digital Officer of Merck & Co., Inc., exercised three tranches of previously granted stock options for a total of 52,847 shares of common stock at strike prices of $77.62, $75.36, and $73.73, then sold the same total number of shares in market transactions at a weighted-average price of $128.7707, resulting in a net change of zero shares from these trades. The option exercises (4,600 + 13,542 + 34,705 shares) increased his direct holdings stepwise to 66,421.037 shares before each paired sale reduced his position back to 31,716.037 shares, indicating the transactions were likely for liquidity or diversification rather than accumulation. Based on the approximate sale price, the gross sale proceeds were about $6.8 million, and his remaining holdings are worth roughly $4.1 million, referencing current market pricing for MRK. The options involved had previously vested in equal installments over three years and had been adjusted in connection with the Organon & Co. spin-off to preserve intrinsic value and terms.

Filing Facts

CIK

310158

Ticker

MRK

Form

4

Source Type

fda

Accession

0000310158-26-000214

Alert Tier

7