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Home/Companies/Merck & Co., Inc.

Merck & Co., Inc.

218 insider trades tracked

MRK
Insider trades
218
Bought (open market)
$1.6M
Sold (open market)
$125.1M
Acquired (grants)
$76M
Unique insiders
30

12-month activity

Monthly insider buy vs sell totals for Merck & Co., Inc..

BuysSellsFilings with no price (gifts, grants)
Show data table
MonthBuysSellsFilings
October 2025$0$00
November 2025$0$1.3M2
December 2025$0$05
January 2026$0$011
February 2026$0$40.7M23
March 2026$0$03
April 2026$0$026
May 2026$0$041
June 2026$0$03
July 2026$0$00
August 2026$0$30M25
September 2026$0$00

Recent insider trades

Most recent Form 4 filings for Merck & Co., Inc..

  • Guindo Chirfisold10,000 shares ofMRKat $135$1.4MAug 13Details
  • Zachary Jennifersold80,315 shares ofMRKat $133.456$10.7MAug 12 · filed Aug 13Details
  • Zachary Jenniferexercised13,433 shares ofMRKat $84.71$1.1MAug 12 · filed Aug 13Details

Insiders at this company

Executives and directors who have filed Form 4s.

  • Williams David Michael20 trades
  • Zachary Jennifer18 trades
  • DeLuca Richard R.16 trades
  • Oosthuizen Johannes Jacobus15 trades
  • Davis Robert M15 trades
  • Smart Dalton E. III14 trades
  • Guindo Chirfi13 trades
  • Li Dean Y12 trades

Explore insider screeners

Latest CEO & CFO PurchasesLatest CEO & CFO SalesDirector PurchasesOfficer PurchasesTop Purchases This WeekTop Sales This WeekTop Officer Buys (Month)10% Owner Filings10b5-1 Planned TradesDiscretionary TradesBuy/Sell RatiosPolitician-Insider Overlap
  • Zachary Jenniferexercised41,494 shares ofMRKat $117.89$4.9MAug 12 · filed Aug 13Details
  • DeLuca Richard R.sold600 shares ofMRKat $132.037$79KAug 12Details
  • DeLuca Richard R.sold11,099 shares ofMRKat $131.613$1.5MAug 12Details
  • DeLuca Richard R.sold5,427 shares ofMRKat $132.35$718KAug 11 · filed Aug 12Details
  • DeLuca Richard R.sold7,410 shares ofMRKat $131.331$973KAug 11 · filed Aug 12Details
  • DeLuca Richard R.sold20,784 shares ofMRKat $130.435$2.7MAug 10 · filed Aug 12Details
  • DeLuca Richard R.sold300 shares ofMRKat $131.023$39KAug 6 · filed Aug 10Details
  • DeLuca Richard R.sold4,945 shares ofMRKat $130.231$644KAug 6 · filed Aug 10Details
  • DeLuca Richard R.sold805 shares ofMRKat $131.022$105KAug 6 · filed Aug 10Details
  • Guindo Chirfisold15,000 shares ofMRKat $131$2MAug 6 · filed Aug 7Details
  • Williams David Michaelsold34,705 shares ofMRKat $128.771$4.5MAug 5 · filed Aug 7Details
  • Williams David Michaelexercised34,705 shares ofMRKat $73.73$2.6MAug 5 · filed Aug 7Details
  • Williams David Michaelsold13,542 shares ofMRKat $128.771$1.7MAug 5 · filed Aug 7Details
  • Williams David Michaelexercised13,542 shares ofMRKat $75.36$1MAug 5 · filed Aug 7Details
  • Williams David Michaelsold4,600 shares ofMRKat $128.771$592KAug 5 · filed Aug 7Details
  • Williams David Michaelexercised4,600 shares ofMRKat $77.62$357KAug 5 · filed Aug 7Details
  • Maraldo David R.sold2,686 shares ofMRKat $128.718$346KAug 5 · filed Aug 7Details
  • Maraldo David R.exercised2,686 shares ofMRKat $84.71$228KAug 5 · filed Aug 7Details
  • Maraldo David R.sold9,709 shares ofMRKat $128.718$1.2MAug 5 · filed Aug 7Details
  • Maraldo David R.exercised9,709 shares ofMRKat $87.1$846KAug 5 · filed Aug 7Details
  • Maraldo David R.sold6,311 shares ofMRKat $128.718$812KAug 5 · filed Aug 7Details
  • Maraldo David R.exercised6,311 shares ofMRKat $73.73$465KAug 5 · filed Aug 7Details
  • Seidman Christine Egranted63.23 shares ofMRKat $128.5$8KJun 30 · filed Jul 1Details
  • Karsanbhai Surendralal Lancagranted126.459 shares ofMRKat $128.5$16KJun 30 · filed Jul 1Details
  • Coe Mary Ellengranted233.463 shares ofMRKat $128.5$30KJun 30 · filed Jul 1Details
  • Mayo Stephengranted1,853.1 shares ofMRKat $118.72$220KMay 29 · filed Jun 2Details
  • Seidman Christine Egranted1,853.1 shares ofMRKat $118.72$220KMay 29 · filed Jun 2Details
  • View all trades for MRK →
    Coe Mary Ellen
    11 trades
  • Litchfield Caroline11 trades
  • GLOCER THOMAS H10 trades
  • Maraldo David R.10 trades
  • Seidman Christine E10 trades
  • Larson Betty D6 trades
  • Chattopadhyay Sanat5 trades
  • MIZELL STEVEN4 trades
  • Klobuchar Michael A4 trades
  • Foard Brian3 trades
  • Karsanbhai Surendralal Lanca3 trades
  • Downing Cristal N3 trades