Merck & Company Inc.

Last updated September 27, 2026

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Organization details

Legal name: Merck & Company Inc.
Former names: Schering Plough Corp
Ownership: Public
Status: Active
Sector (GICS): Health Care
SIC code: 2834 — Pharmaceutical Preparations
Jurisdiction of incorporation: New Jersey
Headquarters city: Rahway
Headquarters state / province: New Jersey
Headquarters country: United States
Fiscal year end: December
Ticker symbol: MRK
Primary stock exchange: NYSE

Identifiers

SEC CIK: 0000310158
EIN: 22-1918501
Wikidata ID: Q247489

Board of directors

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Christine E. Seidman · Director
Since 2023
Douglas M. Baker Jr. · Director
Since 2023
Inge G. Thulin · Director
Since 2023
Kathy J. Warden · Director
Since 2023
Mary Ellen Coe · Director
Since 2023
Pamela J. Craig · Director
Since 2023
Patricia F. Russo · Director
Since 2023
Paul J. Diaz · Director
Since 2026
Paul Rothman · Director
Since 2023
Peter C. Wendell · Director
Since 2023
Risa J. Lavizzo-Mourey · Director
Since 2023
Robert M. Davis · Director · Chairman, CEO & President
Since 2023
Stephen Mayo · Director
Since 2023
Surendralal Lanca Karsanbhai · Director
Since 2025
Thomas H. Glocer · Director
Since 2023

Chief executives

Robert M. Davis · CEO & President

Dates unknown

Director election results

Annual meeting of May 26, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

11 of this board's directors also sit on 19 other boards. 6 are in the same sector.

Shared director Other board Same sector +3 more in the list below

Allogene Therapeutics Inc. Same sector
via Stephen Mayo
Centene Corporation
via Paul J. Diaz
Corning Incorporated
via Pamela J. Craig
DaVita Inc. Same sector
via Paul J. Diaz
Duke Energy Corporation (Holding Company)
via Robert M. Davis
Emerson Electric Company
via Surendralal Lanca Karsanbhai
GE Aerospace
via Risa J. Lavizzo-Mourey
GE HealthCare Technologies Inc. Same sector
via Risa J. Lavizzo-Mourey
General Motors Company
via Patricia F. Russo
Hewlett Packard Enterprise Company
via Patricia F. Russo
Intel Corporation
via Risa J. Lavizzo-Mourey
KKR & Co. Inc.
via Patricia F. Russo
Labcorp Holdings Inc. Same sector
via Paul Rothman
Morgan Stanley
via Thomas H. Glocer
Myriad Genetics Inc. Same sector
via Paul J. Diaz
Northrop Grumman Corporation
via Kathy J. Warden
Sarepta Therapeutics Inc. Same sector
via Stephen Mayo
Target Corporation
via Douglas M. Baker Jr.
The Progressive Corporation
via Pamela J. Craig

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $0; 0 purchases by 0 insiders
Sold, last 12 months: $70,677,186; 33 sales by 10 insiders

Date	Insider	Transaction	Shares	Price	Value
Aug 13, 2026	Chirfi Guindo Officer (EVP, Access, Policy & Comms)	Open-market sale	−10,000	$135.00	$1,350,000
Aug 12, 2026	Jennifer Zachary Officer (EVP, General Counsel)	Option exercise	+41,494	$117.89	$4,891,728
Aug 12, 2026	Jennifer Zachary Officer (EVP, General Counsel)	Option exercise	+13,433	$84.71	$1,137,909
Aug 12, 2026	Jennifer Zachary Officer (EVP, General Counsel)	Open-market sale	−80,315	$133.46	$10,718,840
Aug 12, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−11,099	$131.61	$1,460,739
Aug 12, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−600	$132.04	$79,224
Aug 11, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−7,410	$131.33	$973,155
Aug 11, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−5,427	$132.35	$718,263
Aug 10, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−20,784	$130.43	$2,710,857
Aug 6, 2026	Chirfi Guindo Officer (EVP, Access, Policy & Comms)	Open-market sale	−15,000	$131.00	$1,965,000
Aug 6, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−805	$131.02	$105,471
Aug 6, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−4,945	$130.23	$643,987
Aug 6, 2026	DeLuca Richard R. Officer (EVP&Pres, Merck Animal Heallth)	Open-market sale	−300	$131.02	$39,306
Aug 5, 2026	Maraldo David R. Officer (EVP & Pres. MMD)	Option exercise	+6,311	$73.73	$465,310
Aug 5, 2026	Williams David Michael Officer (EVP,Chief Info&Digital Officer)	Option exercise	+4,600	$77.62	$357,052

Peers

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Questions about Merck & Company Inc.

Who is the CEO of Merck & Company Inc.?

Robert M. Davis is Merck & Company Inc.'s CEO & President.

How many directors are on Merck & Company Inc.'s board?

Merck & Company Inc.'s board has 15 directors: Christine E. Seidman, Douglas M. Baker Jr., Inge G. Thulin, Kathy J. Warden, Mary Ellen Coe, Pamela J. Craig, Patricia F. Russo, Paul J. Diaz, Paul Rothman, Peter C. Wendell and 5 others.

Are Merck & Company Inc. insiders buying or selling shares?

Over the last 12 months, Merck & Company Inc. insiders made no open-market purchases and sold $70.7 million of shares in 33 sales on the open market, as reported to the SEC on Forms 4 and 5.

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