Chirfi Guindo Insider Trades

EVP, Access, Policy & Comms

EVP, Access, Policy & Comms at Merck & Co., Inc.. 2 significant open-market trades reported on SEC Form 4 in the last 180 days.

Bought

$3.3M

Sold

0 / 2

Buys / Sells

Companies

MRKEVP, Access, Policy & Comms
Merck & Co., Inc.
2 sells, $3.3M · 19 graded alerts

Reported Trades

Open-market transactions only (code P and S), outside any 10b5-1 plan, dated by the day the filing reached EDGAR. Each row links to the filing.

Filed	Company	Trade	Value	Shares	Source
Aug 13, 2026	MRKEVP, Access, Policy & Comms	sell21.5% of stake	$1.4M	10,000	Form 4
Aug 7, 2026	MRKEVP, Access, Policy & Comms	sell24.3% of stake	$2.0M	15,000	Form 4

Other Insiders at These Companies

Everyone else who reported a significant open-market trade at the same company in the last 180 days. Several buyers inside one week is cluster buying.

Jennifer ZacharyEVP, General Counsel at MRK1 sell, $10.7MAug 13, 2026
Richard R. DeLucaEVP&Pres, Merck Animal Heallth at MRK1 sell, $5.9MAug 12, 2026
David R. MaraldoEVP & Pres. MMD at MRK1 sell, $2.4MAug 7, 2026
David Michael WilliamsEVP,Chief Info&Digital Officer at MRK1 sell, $6.8MAug 7, 2026

How to Read This Page

These are the trades an insider chose to make with their own money, not grants, option exercises or tax withholding. A purchase is the stronger signal (why buys carry more information than sales), and an insider who buys is locked out of selling for six months by the short-swing rule. Several insiders buying at the same company in the same week is cluster buying, the pattern the research literature rates highest. The window here is 180 days; the full filing history lives on EDGAR.

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