Company fact sheet
Ticker
MRK
Name
The company is known as Merck in the U.S. and Canada. Everywhere else, we’re known as MSD. Merck & Co., Inc. is the legal name and is listed on the New York Stock Exchange under the symbol “MRK.”
Description
At Merck, known as MSD outside of the United States and Canada, we’re unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world — and today, we’re at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities.
Employees
Approximately 75,000 (as of Dec. 31, 2025)
Headquarters
Rahway, New Jersey
Businesses
Pharmaceuticals
Vaccines
Animal Health
2025 Revenue
$65.0 billion
2025 Revenues
(by geographic area, including pharmaceutical and animal health revenue)
| $36.5 B | United States |
| $14.6 B | Europe, Middle East and Africa |
| $3.4 B | Latin America |
| $3.0 B | Asia Pacific (other than Japan and China) |
| $2.7 B | Japan |
| $1.9 B | China |
| $2.9 B | Other |
2025 R&D Expenses
$15.8 billion
Products
Merck is a global health care company that delivers innovative health solutions through its prescription medicines, vaccines, biologic therapies, and animal health products.
View the list of products marketed in the U.S.
Pipeline
Merck has a robust pipeline, with a wide range of product candidates across each phase of development.
Senior leadership
Robert M. Davis, chairman and chief executive officer
