Merck & Co., Inc.

NYSE:MRK Stock Report

Market Cap: US$286.5b

Merck Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NYSE:MRK Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
12 Feb 26SellUS$1,214,562Chirfi GuindoIndividual10,000US$121.46
10 Feb 26SellUS$1,202,844Dean LiIndividual10,235US$117.52
09 Feb 26SellUS$1,184,101Chirfi GuindoIndividual10,000US$118.41
06 Feb 26SellUS$1,827,992Johannes OosthuizenIndividual15,000US$121.87
06 Feb 26SellUS$4,557,025Richard DeLucaIndividual37,685US$120.92
05 Feb 26SellUS$2,437,676Chirfi GuindoIndividual20,000US$121.88
04 Feb 26SellUS$5,599,327Robert DavisIndividual47,434US$118.35
04 Feb 26SellUS$287,220Dalton SmartIndividual2,400US$119.68
10 Nov 25SellUS$616,395Cristal DowningIndividual7,085US$87.00
03 Nov 25SellUS$720,040David WilliamsIndividual8,614US$83.59

Insider Trading Volume

Insider Buying: MRK insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of MRK?
Owner TypeNumber of SharesOwnership Percentage
Private Companies2,6440.000107%
Individual Insiders1,250,6250.0506%
State or Government2,725,5580.11%
General Public488,328,78719.8%
Institutions1,980,084,38980.1%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 47.69% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
10.3%
The Vanguard Group, Inc.
254,322,763US$29.5b0.87%0.35%
8.85%
BlackRock, Inc.
218,834,502US$25.4b1.94%0.32%
4.86%
State Street Global Advisors, Inc.
120,040,168US$13.9b1.57%0.43%
3.5%
Wellington Management Group LLP
86,435,458US$10.0b14.8%1.59%
2.43%
Geode Capital Management, LLC
60,047,984US$7.0b0.42%0.37%
1.96%
Charles Schwab Investment Management, Inc.
48,572,418US$5.6b-9.56%0.74%
1.56%
UBS Asset Management AG
38,611,675US$4.5b5.34%0.36%
1.54%
Norges Bank Investment Management
37,981,502US$4.4b5.18%0.28%
1.13%
FMR LLC
27,868,830US$3.2b23.7%0.16%
1.1%
Morgan Stanley
27,273,802US$3.2b0.08%0.29%
1.1%
Northern Trust Global Investments
27,234,642US$3.2b-2.5%0.39%
1.01%
Fisher Asset Management, LLC
24,873,327US$2.9b3.35%0.97%
0.85%
JP Morgan Asset Management
20,939,909US$2.4b-4.33%0.22%
0.8%
Legal & General Investment Management Limited
19,776,842US$2.3b-4.27%0.43%
0.76%
T. Rowe Price Group, Inc.
18,753,390US$2.2b37.9%0.19%
0.73%
BNY Asset Management
18,001,836US$2.1b-12.3%0.36%
0.7%
Eaton Vance Management
17,409,810US$2.0b2.89%0.38%
0.65%
Columbia Management Investment Advisers, LLC
15,974,409US$1.9b0.25%0.37%
0.6%
Bank of America Corporation
14,788,776US$1.7b7.46%0.42%
0.58%
Amundi Asset Management SAS
14,262,361US$1.7b-10.6%0.28%
0.57%
Harris Associates L.P.
14,088,705US$1.6b43.4%1.74%
0.56%
State Farm Mutual Automobile Insurance Company
13,794,969US$1.6b0%1.16%
0.54%
Goldman Sachs Asset Management, L.P.
13,321,029US$1.5b2.21%0.3%
0.53%
Franklin Resources, Inc.
13,029,913US$1.5b-8.01%0.45%
0.52%
Strategic Advisers LLC
12,967,736US$1.5b19.1%0.42%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/03/18 16:12
End of Day Share Price 2026/03/18 00:00
Earnings2025/12/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Merck & Co., Inc. is covered by 49 analysts. 22 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
David ToungArgus Research Company
Charles ButlerBarclays
Emily FieldBarclays