Guindo Chirfi 4

What Happened
Guindo Chirfi, Chief Marketing Officer of Merck & Co., sold 20,000 shares in an open-market transaction on February 5, 2026. The weighted-average sale price was $121.88 per share, generating proceeds of $2,437,676. The shares were sold in multiple trades at prices ranging from $121.84 to $121.97.

Key Details

• Transaction date: 2026-02-05 (reported on Form 4 filed 2026-02-06) — timely filing.
• Transaction type: Sale (Code S), open-market/private sale.
• Shares sold: 20,000; weighted-average price: $121.88; total proceeds: $2,437,676.
• Price range noted: $121.84 to $121.97 (footnote: weighted average; reporting person can provide per-trade breakdown on request).
• Shares owned after the transaction: not specified in the provided filing excerpt.
• No 10b5-1 plan, tax-withholding, option exercise, or gift noted in the provided details.

Context
This was a straightforward sale by an executive and does not, by itself, indicate company outlook. Purchases by insiders are generally considered more informative about conviction; single sales can be routine (diversification, tax planning, liquidity). Retail investors should consider this trade alongside other filings and company fundamentals.