Chirfi Guindo, EVP, Access, Policy & Comms at Merck, sold MRK on Aug 13, 2026

Data as of Oct 16

▼ SELL$1.4M10,000 shares at $135.00Chirfi Guindo EVP, Access, Policy & CommsMRK Merck & Co., Inc.

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Traded: Aug 13, 2026
Disclosed: Aug 13, 2026
Filed: The same day

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

MRKSimilar stocks (XLV — its sector index fund), rebased to MRK's price on the disclosure day

MRK since disclosure

+7.7%

after the sale

Similar stocks (XLV) since disclosure

+4.9%

XLV — its sector index fund

Change in closing price from Aug 13, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

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