MetaCap

Merck Insider Trades

NYSE: MRKHealth CareBiotechnology: Pharmaceutical PreparationsUSD

146.24+3.86 (+2.71%)

Market open · Delayed 15 min · as of Oct 9, 3:37 PM ET

Last 12 months

Purchases
0 · $0
Sales
17 · $29.98M
Shares bought / sold
0 / 228.24K
Net activity
Net selling $30.0 million

Merck insider activity

Over the last 12 months, Merck insiders reported 31 transactions on SEC Form 4: 0 open-market purchases and 17 sales. Insiders bought $0 and sold $30.0 million worth of stock, for net insider selling of $30.0 million. The largest seller was Zachary Jennifer, with $10.7 million in reported sales.

The most recent filing shows Guindo Chirfi (EVP, Access, Policy & Comms) selling 10,000 shares at $135.00 on Aug 13, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put MRK's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

MRK insider transactions

Merck insider transactions
DateInsiderTypeSharesValueFiling
Aug 13, 2026Guindo ChirfiEVP, Access, Policy & CommsSale10,000$1.35MForm 4
Aug 12, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale600$79.22KForm 4
Aug 12, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale11,099$1.46MForm 4
Aug 12, 2026Zachary JenniferEVP, General CounselSale80,315$10.72MForm 4
Aug 12, 2026Zachary JenniferEVP, General CounselOption exercise13,433$1.14MForm 4
Aug 12, 2026Zachary JenniferEVP, General CounselOption exercise41,494$4.89MForm 4
Aug 11, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale5,427$718.26KForm 4
Aug 11, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale7,410$973.16KForm 4
Aug 10, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale20,784$2.71MForm 4
Aug 6, 2026Guindo ChirfiEVP, Access, Policy & CommsSale15,000$1.97MForm 4
Aug 6, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale300$39.31KForm 4
Aug 6, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale4,945$643.99KForm 4
Aug 6, 2026DeLuca Richard R.EVP&Pres, Merck Animal HeallthSale805$105.47KForm 4
Aug 5, 2026Williams David MichaelEVP,Chief Info&Digital OfficerSale34,705$4.47MForm 4
Aug 5, 2026Williams David MichaelEVP,Chief Info&Digital OfficerOption exercise34,705$2.56MForm 4
Aug 5, 2026Williams David MichaelEVP,Chief Info&Digital OfficerSale13,542$1.74MForm 4
Aug 5, 2026Williams David MichaelEVP,Chief Info&Digital OfficerOption exercise13,542$1.02MForm 4
Aug 5, 2026Williams David MichaelEVP,Chief Info&Digital OfficerSale4,600$592.35KForm 4
Aug 5, 2026Williams David MichaelEVP,Chief Info&Digital OfficerOption exercise4,600$357.05KForm 4
Aug 5, 2026Maraldo David R.EVP & Pres. MMDSale2,686$345.74KForm 4
Aug 5, 2026Maraldo David R.EVP & Pres. MMDOption exercise2,686$227.53KForm 4
Aug 5, 2026Maraldo David R.EVP & Pres. MMDSale9,709$1.25MForm 4
Aug 5, 2026Maraldo David R.EVP & Pres. MMDOption exercise9,709$845.65KForm 4
Aug 5, 2026Maraldo David R.EVP & Pres. MMDSale6,311$812.34KForm 4
Aug 5, 2026Maraldo David R.EVP & Pres. MMDOption exercise6,311$465.31KForm 4
May 2, 2026Maraldo David R.EVP & Pres. MMDTax withholding159$17.83KForm 4
May 2, 2026Maraldo David R.EVP & Pres. MMDOption exercise552$61.91KForm 4
May 2, 2026Smart Dalton E. IIISVP Fin. - Global ControllerTax withholding132$14.81KForm 4
May 2, 2026Smart Dalton E. IIISVP Fin. - Global ControllerOption exercise383$42.96KForm 4
Apr 29, 2026Guindo ChirfiEVP, Access, Policy & CommsTax withholding969$106.62KForm 4
Apr 29, 2026Guindo ChirfiEVP, Access, Policy & CommsOption exercise1,967$216.43KForm 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

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