Sign in

CIK 0000310158 · Large accelerated filer

Merck & Co., Inc.

Sign in to watch
Ticker
MRK
Exchange
NYSE
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
NJ
Entity type
operating
EIN
221918501
Phone
908-740-4000
Business address
126 EAST LINCOLN AVENUE, P.O. BOX 2000, RAHWAY, NJ, 07065
Former names
Merck & Co. Inc., SCHERING PLOUGH CORP
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-02-06 Oosthuizen Johannes Jacobus President, U.S. Market Sale −15,000 $121.87 $1.8M 21,197.39
2026-02-06 DeLuca Richard R. EVP&Pres, Merck Animal Heallth Sale −37,685 $120.92 $4.6M 160,173.83
2026-02-05 Guindo Chirfi Chief Marketing Officer Sale −20,000 $121.88 $2.4M 80,615.13
2026-02-04 Smart Dalton E. III SVP Fin. - Global Controller Option exercise +4,000 $62.07 $248K 14,604.82
2026-02-04 Smart Dalton E. III SVP Fin. - Global Controller Sale −4,000 $119.68 $479K 10,604.82
2026-02-04 Smart Dalton E. III SVP Fin. - Global Controller Sale −2,400 $119.68 $287K 8,204.82
2026-02-04 Smart Dalton E. III SVP Fin. - Global Controller Option exercise · Stock Option (Right to Buy) −4,000 8,130
2026-02-04 Litchfield Caroline EVP & CFO Option exercise +41,997 $53.06 $2.2M 132,189.19
2026-02-04 Litchfield Caroline EVP & CFO Sale −41,997 $119.61 $5.0M 90,192.19
2026-02-04 Litchfield Caroline EVP & CFO Option exercise · Stock Option (Right to Buy) −41,997 0
2026-02-04 Li Dean Y Executive VP & President, MRL Option exercise +15,087 $56.04 $845K 117,357.05
2026-02-04 Li Dean Y Executive VP & President, MRL Sale −15,087 $118.77 $1.8M 102,270.05
2026-02-04 Li Dean Y Executive VP & President, MRL Option exercise · Stock Option (Right to Buy) −15,087 0
2026-02-04 Davis Robert M Chairman, CEO & President Sale −14,972 $117.38 $1.8M 476,063.76
2026-02-04 Davis Robert M Chairman, CEO & President Sale −32,462 $118.35 $3.8M 443,601.76
2026-01-26 Zachary Jennifer EVP, General Counsel Grant or award +11,583 $107.40 $1.2M 68,915.67
2026-01-26 Williams David Michael EVP,Chief Info&Digital Officer Grant or award +6,112 $107.40 $656K 30,837.74
2026-01-26 Smart Dalton E. III SVP Fin. - Global Controller Grant or award +1,066 $107.40 $114K 10,604.82
2026-01-26 Romanelli Joseph President, Human Health Int?l Grant or award +5,703 $107.40 $613K 28,739.34
2026-01-26 Oosthuizen Johannes Jacobus President, U.S. Market Grant or award +5,026 $107.40 $540K 36,197.39

Page 8 of 19 · 376 trades