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MRK Insider Trading

Insider Ownership Percentage: 0.09%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $39,354,502.05

Merck & Co., Inc. Insider Trading History Chart

This chart shows the insider buying and selling history at Merck & Co., Inc. by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Merck & Co., Inc. Share Price & Price History

Current Price: $115.78
Price Change: ▲ Price Increase of +0.096 (0.08%)
As of 03/24/2026 01:39 PM ET

This chart shows the closing price history over time for MRK up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Merck & Co., Inc. Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
2/9/2026Chirfi GuindoCMOSell10,000$118.41$1,184,100.0070,615View SEC Filing Icon  
2/9/2026Jennifer ZacharyEVPSell121,573$119.15$14,485,422.9568,916View SEC Filing Icon  
2/6/2026David Michael WilliamsEVPSell5,000$121.91$609,550.0030,838View SEC Filing Icon  
2/6/2026Johannes Jacobus OosthuizenInsiderSell15,000$121.87$1,828,050.0021,197View SEC Filing Icon  
2/6/2026Richard R. DelucaEVPSell37,685$120.92$4,556,870.20160,174View SEC Filing Icon  
2/5/2026Chirfi GuindoCMOSell20,000$121.88$2,437,600.0080,615View SEC Filing Icon  
2/4/2026Caroline LitchfieldCFOSell41,997$119.61$5,023,261.1790,192View SEC Filing Icon  
2/4/2026E Smart IIISVPSell6,400$119.67$765,888.008,205View SEC Filing Icon  
2/4/2026Dean Y LiVPSell15,087$118.77$1,791,882.99102,270View SEC Filing Icon  
2/4/2026Robert M. DavisCEOSell47,434$118.04$5,599,109.36443,602View SEC Filing Icon  
11/3/2025David Michael WilliamsEVPSell8,614$83.59$720,044.2624,578View SEC Filing Icon  
4/25/2025E Smart IIISVPSell4,262$82.76$352,723.127,778View SEC Filing Icon  
2/6/2025Cristal N. DowningInsiderSell2,361$88.76$209,562.367,085View SEC Filing Icon  
2/6/2025Inge G. ThulinDirectorBuy2,833$88.25$250,012.252,933View SEC Filing Icon  
2/13/2024Joseph RomanelliInsiderSell1,000$124.89$124,890.0019,569View SEC Filing Icon  
2/2/2024Steven MizellEVPSell50,694$126.65$6,420,395.1023,619View SEC Filing Icon  
11/9/2023Johannes Jacobus OosthuizenInsiderSell2,081$102.38$213,052.7818,191View SEC Filing Icon  
11/8/2023Richard R. DelucaEVPSell43,823$105.03$4,602,729.69111,764View SEC Filing Icon  
8/14/2023Steven MizellEVPSell4,250$109.01$463,292.5022,935View SEC Filing Icon  
8/3/2023Steven MizellEVPSell4,500$105.49$474,705.0027,185View SEC Filing Icon  
5/4/2023Rita A. KarachunVPSell15,875$117.53$1,865,788.7545,710View SEC Filing Icon  
5/3/2023Steven MizellEVPSell53,400$119.01$6,355,134.0031,685View SEC Filing Icon  
5/1/2023Richard R. DelucaEVPSell75,436$116.03$8,752,839.08154,493View SEC Filing Icon  
4/28/2023Richard R. DelucaEVPSell66,163$115.00$7,608,745.00154,493View SEC Filing Icon  
4/28/2023Robert M. DavisCEOSell143,329$114.93$16,472,801.97271,817View SEC Filing Icon  
4/26/2023Joseph RomanelliInsiderBuy3$113.68$341.0420,599View SEC Filing Icon  
4/13/2023Sanat ChattopadhyayinsiderSell134,055$115.07$15,425,708.85View SEC Filing Icon  
3/24/2023Joseph RomanelliInsiderSell35$104.65$3,662.7520,596View SEC Filing Icon  
3/20/2023Joseph RomanelliInsiderBuy136$105.47$14,343.9220,631View SEC Filing Icon  
2/21/2023Joseph RomanelliInsiderBuy11$109.20$1,201.2020,495View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Merck & Co., Inc. (NYSE:MRK)

76.07% of Merck & Co., Inc. stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at MRK by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Merck & Co., Inc. Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
3/24/2026Old North State Trust LLC8,629$0.91M0.5%-3.3%0.000%Search for SEC Filing on Google Icon
3/23/2026J. Derek Lewis & Associates Inc.2,032$0.21M0.1%N/A0.000%Search for SEC Filing on Google Icon
3/20/2026Purpose Unlimited Inc.104,944$11.05M0.5%N/A0.004%Search for SEC Filing on Google Icon
3/17/2026Stance Capital LLC13,997$1.47M0.5%-16.7%0.001%Search for SEC Filing on Google Icon
3/17/2026Cornerstone Planning LLC29,204$3.09M0.7%N/A0.001%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.1,722,146$181.27M0.3%+33.2%0.070%Search for SEC Filing on Google Icon
3/16/2026Bank of New Hampshire9,033$0.95M0.2%+3.1%0.000%Search for SEC Filing on Google Icon
3/13/2026Fund Advisors of America Inc FL3,794$0.40M0.4%N/A0.000%Search for SEC Filing on Google Icon
3/13/2026World Investment Advisors87,754$9.24M0.1%+29.6%0.004%Search for SEC Filing on Google Icon
3/12/2026Farmers National Bank9,396$0.99M0.2%-2.0%0.000%Search for SEC Filing on Google Icon
3/12/2026Winthrop Partners WNY LLC2,722$0.29M0.2%N/A0.000%Search for SEC Filing on Google Icon
3/12/2026Nalls Sherbakoff Group LLC1,957$0.21M0.1%N/A0.000%Search for SEC Filing on Google Icon
3/11/2026Meadowbrook Advisors Group LLC11,536$1.21M0.7%N/A0.000%Search for SEC Filing on Google Icon
3/11/2026Larry Mathis Financial Planning LLC9,052$0.95M0.8%N/A0.000%Search for SEC Filing on Google Icon
3/11/2026Green Ridge Wealth Planning LLC5,505$0.58M0.3%N/A0.000%Search for SEC Filing on Google Icon
3/10/2026Advisortrust Partners LLC38,556$4.06M1.8%N/A0.002%Search for SEC Filing on Google Icon
3/10/2026PeakShares LLC5,018$0.53M0.5%N/A0.000%Search for SEC Filing on Google Icon
3/9/2026Corient Private Wealth LLC2,433,240$256.22M0.3%+0.3%0.098%Search for SEC Filing on Google Icon
3/9/2026Auto Owners Insurance Co768,398$76.84M0.0%+10,426.0%0.031%Search for SEC Filing on Google Icon
3/6/2026Union Savings Bank5,238$0.55M0.2%N/A0.000%Search for SEC Filing on Google Icon
3/6/2026Hsbc Holdings PLC8,075,449$850.55M0.5%-5.1%0.327%Search for SEC Filing on Google Icon
3/6/2026Brighton Securities CORP.2,698$0.28M0.1%-35.1%0.000%Search for SEC Filing on Google Icon
3/6/2026Cedarwood Wealth LLC2,644$0.28M0.3%N/A0.000%Search for SEC Filing on Google Icon
3/5/2026Gunpowder Capital Management LLC dba Oliver Wealth Management575$61K0.0%N/A0.000%Search for SEC Filing on Google Icon
3/5/2026Mengis Capital Management Inc.51,096$5.38M0.9%-1.5%0.002%Search for SEC Filing on Google Icon
3/5/2026Worthington Financial Partners LLC5,416$0.57M0.5%N/A0.000%Search for SEC Filing on Google Icon
3/5/2026Bayban1,977$0.21M0.2%N/A0.000%Search for SEC Filing on Google Icon
3/5/2026Taylor Securities Services Inc.2,190$0.23M0.1%N/A0.000%Search for SEC Filing on Google Icon
3/4/2026AG Campbell Advisory LLC4,005$0.42M0.1%N/A0.000%Search for SEC Filing on Google Icon
3/4/2026Pure Financial Advisors LLC57,136$6.01M0.1%+5.2%0.002%Search for SEC Filing on Google Icon
3/4/2026Rehmann Capital Advisory Group28,301$2.98M0.2%-6.8%0.001%Search for SEC Filing on Google Icon
3/4/2026Hayek Kallen Investment Management23,768$2.50M0.8%-1.5%0.001%Search for SEC Filing on Google Icon
3/4/2026SHP Wealth Management6,037$0.64M0.0%N/A0.000%Search for SEC Filing on Google Icon
3/3/2026Employees Provident Fund Board2,415,034$254.21M1.9%N/A0.098%Search for SEC Filing on Google Icon
3/3/2026S Harris Financial Group LLC2,630$0.28M0.3%N/A0.000%Search for SEC Filing on Google Icon
3/3/2026EJMK Ventures LLC5,667$0.60M0.4%N/A0.000%Search for SEC Filing on Google Icon
3/3/2026Targeted Financial Services LLC3,242$0.34M0.3%N/A0.000%Search for SEC Filing on Google Icon
3/3/2026Tulsa Wealth Advisors INC14,515$1.53M0.5%N/A0.001%Search for SEC Filing on Google Icon
3/3/2026Integrated Investment Consultants LLC28,816$3.03M0.6%+53.9%0.001%Search for SEC Filing on Google Icon
3/3/2026NWF Advisory Services Inc.16,365$1.72M0.2%+8.2%0.001%Search for SEC Filing on Google Icon
3/3/2026Bank of Hawaii41,960$4.42M0.2%-20.4%0.002%Search for SEC Filing on Google Icon
3/3/2026Caitong International Asset Management Co. Ltd3,692$0.39M0.1%N/A0.000%Search for SEC Filing on Google Icon
3/2/2026Reflection Asset Management3,814$0.40M0.3%N/A0.000%Search for SEC Filing on Google Icon
3/2/2026CFO Capital Management LLC5,844$0.62M0.5%N/A0.000%Search for SEC Filing on Google Icon
3/2/2026Tobam18,429$1.94M0.5%-28.7%0.001%Search for SEC Filing on Google Icon
3/2/2026NCM Capital Management LLC17,999$1.90M0.7%-3.3%0.001%Search for SEC Filing on Google Icon
3/2/2026Wick Capital Partners LLC2,553$0.27M0.0%N/A0.000%Search for SEC Filing on Google Icon
2/27/2026Arwa LLC14,290$1.50M0.9%N/A0.001%Search for SEC Filing on Google Icon
2/27/2026Financially in Tune LLC2,271$0.24M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/27/2026Strategic Investment Solutions Inc. IL2,888$0.30M0.1%+21.1%0.000%Search for SEC Filing on Google Icon
2/27/2026Groupama Asset Managment900,786$94.81M1.4%+8.2%0.036%Search for SEC Filing on Google Icon
2/26/2026Oak Grove Capital LLC82,260$8.66M1.0%-9.4%0.003%Search for SEC Filing on Google Icon
2/26/2026Anchor Investment Management LLC66,699$7.02M0.6%-1.1%0.003%Search for SEC Filing on Google Icon
2/26/2026TD Capital Management LLC3,160$0.33M0.0%+12.0%0.000%Search for SEC Filing on Google Icon
2/26/2026BDFS Capital LLC3,544$0.38M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/26/2026Banque Transatlantique SA18,828$1.98M0.0%-19.5%0.001%Search for SEC Filing on Google Icon
2/25/2026Tempo Wealth LLC2,219$0.23M0.0%N/A0.000%Search for SEC Filing on Google Icon
2/25/2026Thryve Wealth Management LLC2,206$0.23M0.1%N/A0.000%Search for SEC Filing on Google Icon
2/25/2026Westshore Wealth LLC3,491$0.37M0.1%-15.3%0.000%Search for SEC Filing on Google Icon
2/25/2026MidFirst Bank11,638$1.23M0.1%N/A0.000%Search for SEC Filing on Google Icon
2/24/2026DGS Capital Management LLC11,900$1.25M0.2%-5.0%0.000%Search for SEC Filing on Google Icon
2/24/2026Astoria Portfolio Advisors LLC.1,718$0.18M0.0%-30.0%0.000%Search for SEC Filing on Google Icon
2/24/2026Chelsea Counsel Co.3,260$0.35M0.1%-7.1%0.000%Search for SEC Filing on Google Icon
2/24/2026SG Trading Solutions LLC45,373$4.78M1.1%N/A0.002%Search for SEC Filing on Google Icon
2/24/2026Pacer Advisors Inc.4,351,397$458.03M0.7%-16.9%0.175%Search for SEC Filing on Google Icon
2/23/2026Beaird Harris Wealth Management LLC832$88K0.0%+35.9%0.000%Search for SEC Filing on Google Icon
2/23/2026Wealth Preservation Advisors LLC7,193$0.76M0.4%-3.0%0.000%Search for SEC Filing on Google Icon
2/23/2026Monetary Solutions Ltd2,049$0.22M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/23/2026Phillip James Consulting Co.773$85K1.5%N/A0.000%Search for SEC Filing on Google Icon
2/23/2026Kera Capital Partners Inc.19,258$2.12M0.3%+9.1%0.001%Search for SEC Filing on Google Icon
2/23/2026Walser Wealth Management Company A Ltd Liability Co2,318$0.24M0.1%N/A0.000%Search for SEC Filing on Google Icon
2/23/2026Blue Capital Inc.2,171$0.23M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/23/2026MV Capital Management Inc.23,249$2.45M0.2%N/A0.001%Search for SEC Filing on Google Icon
2/20/2026Cambient Family Office LLC11,421$1.21M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/20/2026Kovitz Investment Group Partners LLC41,902$4.41M0.1%-88.6%0.002%Search for SEC Filing on Google Icon
2/20/2026McLaughlin Asset Management Inc.5,241$0.55M0.5%N/A0.000%Search for SEC Filing on Google Icon
2/20/2026Waterford Advisors LLC2,778$0.29M0.1%-8.3%0.000%Search for SEC Filing on Google Icon
2/20/2026Wick Capital Partners LLC2,843$0.30M0.0%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026Mcguire Capital Advisors Inc.2,456$0.26M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026Hamilton Wealth LLC116,546$12.27M2.3%-0.2%0.005%Search for SEC Filing on Google Icon
2/19/2026WealthPoint Financial LLC4,329$0.46M0.4%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026Compound Planning Inc.62,935$6.63M0.2%+60.6%0.003%Search for SEC Filing on Google Icon
2/19/2026Claris Financial LLC6,229$0.66M0.3%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026TMB Capital Partners LLC4,187$0.44M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.20,546,185$2.16B0.3%+3.5%0.828%Search for SEC Filing on Google Icon
2/19/2026Evansbrook LLC2,309$0.24M0.2%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026Rare Wolf Capital LLC23,429$2.47M1.5%N/A0.001%Search for SEC Filing on Google Icon
2/19/2026First Growth Capital LLC5,631$0.59M0.6%N/A0.000%Search for SEC Filing on Google Icon
2/19/2026Axxcess Wealth Management LLC66,373$6.89M0.1%+1.3%0.003%Search for SEC Filing on Google Icon
2/19/2026Corient Private Wealth LLC5,210,548$548.46M0.3%+114.7%0.210%Search for SEC Filing on Google Icon
2/19/2026Alberta Investment Management Corp15,700$1.65M0.0%-82.9%0.001%Search for SEC Filing on Google Icon
2/19/2026CrossGen Wealth LLC6,290$0.66M0.6%N/A0.000%Search for SEC Filing on Google Icon
2/18/2026Ameriflex Group Inc.4,795$0.51M0.3%-40.5%0.000%Search for SEC Filing on Google Icon
2/18/2026Widmann Financial Services Inc.11,831$1.25M0.8%-1.8%0.000%Search for SEC Filing on Google Icon
2/18/2026First Commonwealth Financial Corp PA 2,688$0.28M0.0%-9.0%0.000%Search for SEC Filing on Google Icon
2/18/2026Blue Sparrow LLC DE137,700$14.49M0.3%N/A0.006%Search for SEC Filing on Google Icon
2/18/2026Mercer Global Advisors Inc. ADV775,210$81.60M0.1%+8.3%0.031%Search for SEC Filing on Google Icon
2/18/2026Summit Global Investments71,272$7.50M0.4%-46.3%0.003%Search for SEC Filing on Google Icon
2/18/2026Blue Chip Partners LLC244,829$25.77M1.9%+7.2%0.010%Search for SEC Filing on Google Icon
2/18/2026Raymond James Financial Inc.6,928,656$729.44M0.2%-1.1%0.279%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Merck & Co., Inc. logo
Merck & Co., Inc. is a health care company, which engages in the provision of health solutions through its prescription medicines, vaccines, biologic therapies, animal health, and consumer care products. It operates through the following segments: Pharmaceutical, Animal Health, and Other. The Pharmaceutical segment includes human health pharmaceutical and vaccine products. The Animal Health segment discovers, develops, manufactures, and markets animal health products, such as pharmaceutical and vaccine products, for the prevention, treatment and control of disease in livestock, and companion animal species. The Other segment consists of sales for the non-reportable segments of healthcare services. The company was founded in 1891 and is headquartered in Rahway, NJ.
Read More on Merck & Co., Inc.

Today's Range

Now: $115.78
Low: $114.02
High: $116.54

50 Day Range

MA: $115.94
Low: $106.94
High: $124.11

52 Week Range

Now: $115.78
Low: $73.31
High: $125.14

Volume

2,518,130 shs

Average Volume

12,247,997 shs

Market Capitalization

$286.24 billion

P/E Ratio

15.92

Dividend Yield

2.98%

Beta

0.27

Who are the company insiders with the largest holdings of Merck & Co., Inc.?

Merck & Co., Inc.'s top insider shareholders include:
  1. Robert M Davis (CEO)
  2. Richard R Deluca (EVP)
  3. Dean Y Li (VP)
  4. Caroline Litchfield (CFO)
  5. Chirfi Guindo (CMO)
  6. Jennifer Zachary (EVP)
  7. David Michael Williams (EVP)
  8. Johannes Jacobus Oosthuizen (Insider)
  9. Dalton E Smart III (SVP)
  10. Cristal N Downing (Insider)
  11. Inge G Thulin (Director)
Learn More about top insider investors at Merck & Co., Inc..

Who are the major institutional investors of Merck & Co., Inc.?

Merck & Co., Inc.'s top institutional shareholders include:
  1. Vanguard Group Inc. — 10.25%
  2. State Street Corp — 4.84%
  3. Wellington Management Group LLP — 3.48%
  4. Geode Capital Management LLC — 2.42%
  5. Charles Schwab Investment Management Inc. — 1.96%
  6. Morgan Stanley — 1.81%
Learn More about top institutional investors of Merck & Co., Inc. stock.

Which institutional investors are selling Merck & Co., Inc. stock?

During the previous quarter, MRK stock was sold by these institutional investors:
  1. Arrowstreet Capital Limited Partnership
  2. Charles Schwab Investment Management Inc.
  3. Assenagon Asset Management S.A.
  4. Clearbridge Investments LLC
  5. Deutsche Bank AG
  6. Massachusetts Financial Services Co. MA
  7. Lazard Asset Management LLC
  8. Bank of New York Mellon Corp
Within the previous year, company insiders that have sold Merck & Co., Inc. company stock include:
  1. Robert M Davis (CEO)
  2. Richard R Deluca (EVP)
  3. Dean Y Li (VP)
  4. Caroline Litchfield (CFO)
  5. Chirfi Guindo (CMO)
  6. Jennifer Zachary (EVP)
  7. David Michael Williams (EVP)
  8. Johannes Jacobus Oosthuizen (Insider)
  9. Dalton E Smart III (SVP)
Learn More investors selling Merck & Co., Inc. stock.

Which institutional investors are buying Merck & Co., Inc. stock?

Within the previous quarter, MRK stock was purchased by institutional investors including:
  1. Norges Bank
  2. Wellington Management Group LLP
  3. Cardano Risk Management B.V.
  4. Jennison Associates LLC
  5. Price T Rowe Associates Inc. MD
  6. Marshall Wace LLP
  7. Corient Private Wealth LLC
  8. Eurizon Capital SGR S.p.A.