MRK

Merck & Co., Inc.

Company with tickers: MRK

CIK

310158

CUSIP

58933Y105

Shares Outstanding

2,469,824,415

Website

https://merck.com

13F Activity (30d)

1076 filings 962 filers

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Date	Insider	Role	Type	Shares	Price	Value	After
2026-05-29	Seidman Christine E	Director	Other	100	—	—	100
2026-05-29	BAKER DOUGLAS M JR	Director	Other	16,000	—	—	16,000
2026-05-29	Craig Pamela J.	Director	Other	1,715	—	—	1,715
2026-05-29	RUSSO PATRICIA F	Director	Other	13,148	—	—	13,148
2026-05-29	RUSSO PATRICIA F	Director	Award	1,853	$118.72	$219,988	62,390
2026-05-29	Warden Kathy J	Director	Award	1,853	$118.72	$219,988	17,890
2026-05-29	Craig Pamela J.	Director	Award	1,853	$118.72	$219,988	34,944
2026-05-29	Rothman Paul	Director	Other	100	—	—	100
2026-05-29	Mayo Stephen	Director	Other	100	—	—	100
2026-05-29	BAKER DOUGLAS M JR	Director	Award	1,853	$118.72	$219,988	11,518
2026-05-29	THULIN INGE G	Director	Award	1,853	$118.72	$219,988	27,469
2026-05-29	Warden Kathy J	Director	Other	500	—	—	500
2026-05-29	Coe Mary Ellen	Director	Award	1,853	$118.72	$219,988	31,765
2026-05-29	Rothman Paul	Director	Award	1,853	$118.72	$219,988	34,944
2026-05-29	LAVIZZO-MOUREY RISA J	Director	Award	1,853	$118.72	$219,988	17,749
2026-05-29	THULIN INGE G	Director	Other	2,932	—	—	2,932
2026-05-29	Karsanbhai Surendralal Lanca	Director	Award	1,853	$118.72	$219,988	5,392
2026-05-29	GLOCER THOMAS H	Director	Award	1,853	$118.72	$219,988	110,911
2026-05-29	Coe Mary Ellen	Director	Other	10	—	—	10
2026-05-29	LAVIZZO-MOUREY RISA J	Director	Other	1,000	—	—	1,000
2026-05-29	Seidman Christine E	Director	Award	1,853	$118.72	$219,988	21,228
2026-05-29	Karsanbhai Surendralal Lanca	Director	Other	1	—	—	1
2026-05-29	GLOCER THOMAS H	Director	Other	5,100	—	—	5,100
2026-05-29	Mayo Stephen	Director	Award	1,853	$118.72	$219,988	14,824
2026-05-05	Davis Robert M	Director, Chairman, CEO & President	Other	450,350	—	—	450,350
2026-05-05	Zachary Jennifer	EVP, General Counsel	Award	12,064	—	—	12,064
2026-05-05	DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Award	11,931	—	—	11,931
2026-05-05	Guindo Chirfi	Chief Marketing Officer	Award	6,628	—	—	6,628
2026-05-05	Foard Brian	EVP, Specialty, Pharma, & ID	Award	31,044	—	—	31,044
2026-05-05	Li Dean Y	Executive VP & President, MRL	Award	58,207	—	—	58,207
2026-05-05	Foard Brian	EVP, Specialty, Pharma, & ID	Award	35,351	—	—	35,351
2026-05-05	Guindo Chirfi	Chief Marketing Officer	Award	19,402	—	—	19,402
2026-05-05	DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Other	161,537	—	—	161,537
2026-05-05	Foard Brian	EVP, Specialty, Pharma, & ID	Award	10,605	—	—	10,605
2026-05-05	Davis Robert M	Director, Chairman, CEO & President	Award	47,724	—	—	47,724
2026-05-05	Williams David Michael	EVP,Chief Info&Digital Officer	Award	4,640	—	—	4,640
2026-05-05	Oosthuizen Johannes Jacobus	President, U.S. Market	Other	21,895	—	—	21,895
2026-05-05	Smart Dalton E. III	SVP Fin. - Global Controller	Other	9,388	—	—	9,388
2026-05-05	Zachary Jennifer	EVP, General Counsel	Award	35,312	—	—	35,312
2026-05-05	Larson Betty D	EVP, Chief HR Officer	Award	23,283	—	—	23,283
2026-05-05	Smart Dalton E. III	SVP Fin. - Global Controller	Award	2,298	—	—	2,298
2026-05-05	Oosthuizen Johannes Jacobus	President, U.S. Market	Award	31,044	—	—	31,044
2026-05-05	Litchfield Caroline	EVP & CFO	Award	46,566	—	—	46,566
2026-05-05	Maraldo David R.	EVP & Pres. MMD	Award	7,424	—	—	7,424
2026-05-05	Oosthuizen Johannes Jacobus	President, U.S. Market	Award	10,605	—	—	10,605
2026-05-05	DeLuca Richard R.	EVP&Pres, Merck Animal Heallth	Award	34,924	—	—	34,924
2026-05-05	Maraldo David R.	EVP & Pres. MMD	Award	21,731	—	—	21,731
2026-05-05	Zachary Jennifer	EVP, General Counsel	Other	70,897	—	—	70,897
2026-05-05	Larson Betty D	EVP, Chief HR Officer	Other	13,774	—	—	13,774
2026-05-05	Maraldo David R.	EVP & Pres. MMD	Other	18,212	—	—	18,212

Showing 1–50 of 1,488 transactions