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MRK Insider Trading

Insider Ownership Percentage: 0.17%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $68,259,517.69

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: $150.57
Price Change: ▲ Price Increase of +0.206 (0.14%)
As of 11/5/2026 11:29 AM 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
8/13/2026Chirfi GuindoEVPSell10,000$135.00$1,350,000.0036,613View SEC Filing Icon  
8/12/2026Jennifer ZacharyEVPSell80,315$133.46$10,718,839.9045,509View SEC Filing Icon  
8/12/2026Richard R. DelucaEVPSell11,699$131.63$1,539,939.37110,167View SEC Filing Icon  
8/11/2026Richard R. DelucaEVPSell12,837$131.76$1,691,403.12121,866View SEC Filing Icon  
8/10/2026Richard R. DelucaEVPSell20,784$130.43$2,710,857.12134,703View SEC Filing Icon  
8/6/2026Chirfi GuindoEVPSell15,000$131.00$1,965,000.0046,613View SEC Filing Icon  
8/6/2026Richard R. DelucaEVPSell6,050$130.38$788,799.00155,487View SEC Filing Icon  
8/5/2026David Michael WilliamsEVPSell52,847$128.77$6,805,108.1931,716View SEC Filing Icon  
8/5/2026David R MaraldoEVPSell18,706$128.72$2,407,836.3218,212View SEC Filing Icon  
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  
See Full Table

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
11/5/2026Keybank National Association OH833,279$121.08M0.4%-1.6%0.034%Search for SEC Filing on Google Icon
11/5/2026Lynx Capital Group Ltd. ADV27,662$4.02M1.6%-0.8%0.001%Search for SEC Filing on Google Icon
11/5/2026Elevated Capital Advisors LLC1,695$0.25M0.1%-27.9%0.000%Search for SEC Filing on Google Icon
11/5/2026Cornerstone Wealth Management LLC23,427$3.40M0.1%+5.2%0.001%Search for SEC Filing on Google Icon
11/5/2026Searle & CO.51,913$7.54M1.8%-5.5%0.002%Search for SEC Filing on Google Icon
11/5/2026Triton Wealth Management PLLC2,228$0.32M0.1%-12.4%0.000%Search for SEC Filing on Google Icon
11/5/2026Csenge Advisory Group14,478$2.10M0.1%+3.3%0.001%Search for SEC Filing on Google Icon
11/5/2026D.B. Root & Company LLC3,667$0.53M0.1%+2.9%0.000%Search for SEC Filing on Google Icon
11/5/2026Cassia Capital Partners LLC14,147$2.06M0.9%-4.7%0.001%Search for SEC Filing on Google Icon
11/5/2026Gables Capital Management Inc.16,167$2.35M0.8%-0.8%0.001%Search for SEC Filing on Google Icon
11/5/2026D Orazio & Associates Inc.4,408$0.64M0.1%+8.8%0.000%Search for SEC Filing on Google Icon
11/5/2026Fingerlakes Wealth Management Inc.1,562$0.23M0.1%N/A0.000%Search for SEC Filing on Google Icon
11/5/2026Marathon Wealth Advisors LLC20,726$3.01M1.0%-0.4%0.001%Search for SEC Filing on Google Icon
11/4/2026New York Life Investment Management LLC343,200$49.87M0.3%-0.2%0.014%Search for SEC Filing on Google Icon
11/4/2026Gen Wealth Partners Inc17,423$2.53M0.7%-15.0%0.001%Search for SEC Filing on Google Icon
11/4/2026Cpwa LLC5,239$0.76M0.9%+29.8%0.000%Search for SEC Filing on Google Icon
11/4/2026Torrey Growth & Income Advisors1,968$0.29M0.1%N/A0.000%Search for SEC Filing on Google Icon
11/4/202671 West Capital Partners16,641$2.42M0.1%+3.6%0.001%Search for SEC Filing on Google Icon
11/4/2026Red Cedar Investment Management LLC27,931$4.06M0.4%+33.2%0.001%Search for SEC Filing on Google Icon
11/4/2026Welch & Forbes LLC314,529$45.70M0.5%-0.8%0.013%Search for SEC Filing on Google Icon
11/4/2026Beutel Goodman & Co Ltd.1,188,702$172.73M1.4%-42.7%0.048%Search for SEC Filing on Google Icon
11/4/2026Montis Financial LLC2,113$0.31M0.1%+6.5%0.000%Search for SEC Filing on Google Icon
11/4/2026AEGON ASSET MANAGEMENT UK Plc1,132,069$164.50M1.7%-3.2%0.046%Search for SEC Filing on Google Icon
11/4/2026Texas Bank & Trust Co14,045$2.04M0.6%-0.5%0.001%Search for SEC Filing on Google Icon
11/4/2026Gryphon Financial Partners LLC16,160$2.35M0.2%+0.7%0.001%Search for SEC Filing on Google Icon
11/4/2026M&G PLC28,312$4.11M0.0%-86.6%0.001%Search for SEC Filing on Google Icon
11/4/2026Vestor Capital LLC27,607$4.01M0.1%+16,530.7%0.001%Search for SEC Filing on Google Icon
11/4/2026Villere ST Denis J & Co. LLC1,392$0.20M0.0%-22.3%0.000%Search for SEC Filing on Google Icon
11/4/2026Kestra Investment Management LLC17,594$2.56M0.0%+6.9%0.001%Search for SEC Filing on Google Icon
11/4/2026Leuthold Group LLC52,353$7.61M0.7%+9.5%0.002%Search for SEC Filing on Google Icon
11/4/2026Retirement Systems of Alabama517,385$75.18M0.2%-0.3%0.021%Search for SEC Filing on Google Icon
11/4/2026Private Management Group Inc.22,122$3.22M0.1%-0.7%0.001%Search for SEC Filing on Google Icon
11/4/2026Clear Wave Wealth Management LLC8,786$1.28M0.2%+39.9%0.000%Search for SEC Filing on Google Icon
11/4/2026Kohmann Bosshard Financial Services LLC2,838$0.41M0.0%+37.6%0.000%Search for SEC Filing on Google Icon
11/4/2026Joseph Group Capital Management780$0.11M0.0%+29.1%0.000%Search for SEC Filing on Google Icon
11/4/2026Fulcrum Asset Management LLP30,036$4.48M0.2%+148.0%0.001%Search for SEC Filing on Google Icon
11/4/2026Allspring Global Investments Holdings LLC418,131$60.13M0.1%+11.9%0.017%Search for SEC Filing on Google Icon
11/4/2026Griffith & Werner Inc.1,455$0.21M0.1%N/A0.000%Search for SEC Filing on Google Icon
11/4/2026Missouri Trust & Investment Co3,835$0.56M0.1%-11.5%0.000%Search for SEC Filing on Google Icon
11/4/2026Burton Enright Welch4,078$0.59M0.1%+128.8%0.000%Search for SEC Filing on Google Icon
11/4/2026Beverly Hills Private Wealth LLC6,254$0.91M0.1%+11.7%0.000%Search for SEC Filing on Google Icon
11/4/2026Bryn Mawr Trust Advisors LLC198,678$28.87M1.2%-9.8%0.008%Search for SEC Filing on Google Icon
11/4/2026Brickley Wealth Management1,480$0.22M0.0%N/A0.000%Search for SEC Filing on Google Icon
11/4/2026Platt Wealth Management LLC3,233$0.47M0.4%-2.5%0.000%Search for SEC Filing on Google Icon
11/4/2026Hohimer Wealth Management LLC3,710$0.54M0.0%-60.1%0.000%Search for SEC Filing on Google Icon
11/4/2026Carret Asset Management LLC77,767$11.30M1.0%-1.0%0.003%Search for SEC Filing on Google Icon
11/4/2026University of Texas Texas AM Investment Management Co.1,220$0.18M0.0%-31.6%0.000%Search for SEC Filing on Google Icon
11/4/2026Family Capital Management Inc.9,661$1.40M0.5%-3.4%0.000%Search for SEC Filing on Google Icon
11/4/2026Almanack Investment Partners LLC.14,600$2.12M0.2%+3.9%0.001%Search for SEC Filing on Google Icon
11/4/2026Means Investment CO. Inc.27,811$4.04M0.3%-0.6%0.001%Search for SEC Filing on Google Icon
11/4/2026Carnegie Lake Advisors LLC1,305$0.19M0.2%-85.8%0.000%Search for SEC Filing on Google Icon
11/4/2026M Holdings Securities Inc.61,526$9.10M0.6%-1.7%0.002%Search for SEC Filing on Google Icon
11/4/2026Shepherd Financial Partners LLC32,464$4.72M0.4%-0.7%0.001%Search for SEC Filing on Google Icon
11/4/2026Avantax Planning Partners Inc.98,819$14.36M0.4%-1.5%0.004%Search for SEC Filing on Google Icon
11/4/2026Brighton Jones LLC92,728$13.47M0.2%+2.8%0.004%Search for SEC Filing on Google Icon
11/4/2026Candriam S.C.A.1,467,627$214.04M1.0%+3.4%0.059%Search for SEC Filing on Google Icon
11/3/2026American State Bank Iowa 5,475$0.80M0.3%N/A0.000%Search for SEC Filing on Google Icon
11/3/2026Cullinan Associates Inc.45,371$6.59M0.5%-2.7%0.002%Search for SEC Filing on Google Icon
11/3/2026Cooper Haims Advisors LLC2,646$0.38M0.2%+8.0%0.000%Search for SEC Filing on Google Icon
11/3/2026Uhlmann Price Securities LLC14,969$2.18M0.1%+10.1%0.001%Search for SEC Filing on Google Icon
11/3/2026Ethic Inc.378,857$55.05M0.6%+5.8%0.015%Search for SEC Filing on Google Icon
11/3/2026Endowment Wealth Management Inc.1,449$0.21M0.1%-18.4%0.000%Search for SEC Filing on Google Icon
11/3/2026180 Wealth Advisors LLC42,467$6.17M0.6%-5.3%0.002%Search for SEC Filing on Google Icon
11/3/2026StoneX Group Inc.44,028$6.43M0.2%+3.4%0.002%Search for SEC Filing on Google Icon
11/3/2026Kornitzer Capital Management Inc. KS523,861$76.12M1.4%-2.9%0.021%Search for SEC Filing on Google Icon
11/3/2026Axiom Investment Management LLC6,581$0.96M0.8%+2.6%0.000%Search for SEC Filing on Google Icon
11/3/2026Pictet Asset Management Holding SA1,452,324$211.07M0.2%+0.1%0.059%Search for SEC Filing on Google Icon
11/3/2026Leelyn Smith LLC51,420$7.47M0.8%-2.2%0.002%Search for SEC Filing on Google Icon
11/3/2026Formidable Asset Management LLC10,984$1.60M0.2%-0.8%0.000%Search for SEC Filing on Google Icon
11/3/2026Palisade Asset Management LLC33,964$4.94M0.5%-4.0%0.001%Search for SEC Filing on Google Icon
11/3/2026Investment Management Corp VA ADV7,922$1.15M0.9%+15.3%0.000%Search for SEC Filing on Google Icon
11/3/2026Pegasus Asset Management Inc.11,213$1.63M0.5%+2.0%0.000%Search for SEC Filing on Google Icon
11/3/2026American Institute for Advanced Investment Management LLP3,882$0.56M0.3%+2.3%0.000%Search for SEC Filing on Google Icon
11/3/2026Parallel Advisors LLC77,134$11.21M0.2%+15.5%0.003%Search for SEC Filing on Google Icon
11/3/2026W.G. Shaheen & Associates DBA Whitney & Co29,877$4.34M0.3%-4.7%0.001%Search for SEC Filing on Google Icon
11/3/2026Abacus Wealth Partners LLC11,050$1.61M0.2%-4.0%0.000%Search for SEC Filing on Google Icon
11/3/2026Guidance Capital Inc.12,313$1.83M0.4%-0.6%0.000%Search for SEC Filing on Google Icon
11/3/2026Tamar Securities LLC2,237$0.33M0.0%-24.6%0.000%Search for SEC Filing on Google Icon
11/3/2026Asset Dedication LLC17,424$2.53M0.2%+3.2%0.001%Search for SEC Filing on Google Icon
11/3/2026Prudent Man Investment Management Inc.950$0.14M0.0%+850.0%0.000%Search for SEC Filing on Google Icon
11/3/2026Eliot Finkel Investment Counsel LLC61,785$8.98M4.5%-0.6%0.003%Search for SEC Filing on Google Icon
11/3/2026Plancorp LLC12,741$1.91M0.0%+5.0%0.001%Search for SEC Filing on Google Icon
11/3/2026May Hill Capital LLC7,819$1.14M0.2%+7.1%0.000%Search for SEC Filing on Google Icon
11/3/2026Phoenix Wealth Advisors5,228$0.76M0.2%-6.5%0.000%Search for SEC Filing on Google Icon
11/3/2026Alps Advisors Inc.254,734$37.02M0.2%-43.7%0.010%Search for SEC Filing on Google Icon
11/3/2026Ashton Thomas Private Wealth LLC122,139$17.75M0.4%+1.5%0.005%Search for SEC Filing on Google Icon
11/3/2026Providence First Trust Co5,774$0.84M0.3%-1.3%0.000%Search for SEC Filing on Google Icon
11/3/2026Canvas Wealth Advisors LLC3,137$0.46M0.1%+5.3%0.000%Search for SEC Filing on Google Icon
11/3/2026Asset One Wealth Management LLC10,416$1.51M0.1%+55.2%0.000%Search for SEC Filing on Google Icon
11/3/2026International Assets Investment Management LLC22,651$3.26M0.1%-10.8%0.001%Search for SEC Filing on Google Icon
11/3/2026Heritage Family Offices LLP2,515$0.37M0.1%+16.1%0.000%Search for SEC Filing on Google Icon
11/3/2026Allegiance Financial Group Advisory Services LLC6,218$0.91M0.1%-5.5%0.000%Search for SEC Filing on Google Icon
11/3/2026Waldron Private Wealth LLC12,360$1.81M0.1%-7.7%0.001%Search for SEC Filing on Google Icon
11/3/2026Calamos Wealth Management LLC22,674$3.30M0.1%+9.0%0.001%Search for SEC Filing on Google Icon
11/3/2026Calamos Advisors LLC799,616$116.19M0.3%+22.9%0.032%Search for SEC Filing on Google Icon
11/3/2026Liberty Capital Management Inc.4,412$0.64M0.1%-8.4%0.000%Search for SEC Filing on Google Icon
11/2/2026Alta Advisers Ltd17,857$2.60M0.4%+86.3%0.001%Search for SEC Filing on Google Icon
11/2/2026Pine Haven Investment Counsel Inc14,468$2.10M1.4%+1.4%0.001%Search for SEC Filing on Google Icon
11/2/2026Pekin Hardy Strauss Inc.23,191$3.37M0.3%-5.8%0.001%Search for SEC Filing on Google Icon
11/2/2026ACR Alpine Capital Research LLC44,670$6.49M0.1%+8.6%0.002%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: $150.57
Low: $150.55
High: $153.37

50 Day Range

MA: $146.57
Low: $139.61
High: $153.21

52 Week Range

Now: $150.57
Low: $84.35
High: $156.92

Volume

3,097,399 shs

Average Volume

10,622,002 shs

Market Capitalization

$371.47 billion

P/E Ratio

155.36

Dividend Yield

2.29%

Beta

0.13

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

Merck & Co., Inc.'s top insider shareholders include:
  1. Kenneth C Frazier (Chairman)
  2. Kenneth C Frazier (CEO)
  3. Kenneth C Frazier (Insider)
  4. Robert M Davis (CEO)
  5. Kenneth C Frazier (CEO)
  6. Robert M Davis (CFO)
  7. Roger M Perlmutter (Insider)
  8. Robert M Davis (EVP)
  9. Kenneth Frazier (CEO)
  10. Adam H Schechter (EVP)
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. Sumitomo Mitsui Trust Group Inc. — 0.24%
  2. Bank Julius Baer & Co. Ltd Zurich — 0.13%
  3. Robeco Institutional Asset Management B.V. — 0.09%
  4. Mirae Asset Global Investments Co. Ltd. — 0.07%
  5. Assenagon Asset Management S.A. — 0.06%
  6. Candriam S.C.A. — 0.06%
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. Assenagon Asset Management S.A.
  2. Mondrian Investment Partners LTD
  3. Beutel Goodman & Co Ltd.
  4. Perpetual Ltd
  5. Bank Julius Baer & Co. Ltd Zurich
  6. Fort Washington Investment Advisors Inc. OH
  7. VIRGINIA RETIREMENT SYSTEMS ET Al
  8. Alps Advisors Inc.
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. Chirfi Guindo (EVP)
  8. David Michael Williams (EVP)
  9. Johannes Jacobus Oosthuizen (Insider)
  10. David R Maraldo (EVP)
  11. 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. Mirae Asset Global Investments Co. Ltd.
  2. Norris Perne & French LLP MI
  3. Calamos Advisors LLC
  4. TD Waterhouse Canada Inc.
  5. First Nebraska Trust Co
  6. Associated Banc Corp
  7. NBT Bank N.A.
  8. Vise Technologies Inc.

Merck & Co., Inc. Active Insiders

David Michael Williams
David Michael Williams
Executive vice president, chief information & digital officer
1 recent trades
Caroline Litchfield
Caroline Litchfield
CFO
Robert M Davis
Robert M Davis (Age 58)
CFO
Wendell P Weeks
Wendell P Weeks
Director
Inge G Thulin
Inge G Thulin
Director
Julie L Gerberding
Julie L Gerberding (Age 71)
EVP
Frank Clyburn
Frank Clyburn
EVP
Richard R Deluca
Richard R Deluca
EVP
4 recent trades
Clark Golestani
Clark Golestani
EVP
Michael J. Holston
Michael J. Holston
EVP
Steven Mizell
Steven Mizell (Age 66)
EVP
Jennifer Zachary
Jennifer Zachary (Age 47)
EVP
1 recent trades
David R Maraldo
David R Maraldo
EVP
1 recent trades
Ashley Watson
Ashley Watson
SVP
Dalton E Smart III
Dalton E Smart III (Age 59)
SVP
Rita A Karachun
Rita A Karachun
VP
Dean Y Li
Dean Y Li (Age 62)
VP
Kenneth C Frazier
Kenneth C Frazier (Age 71)
Insider
Sanat Chattopadhyay
Sanat Chattopadhyay (Age 66)
Insider
Johannes Jacobus Oosthuizen
Johannes Jacobus Oosthuizen
Insider
Joseph Romanelli
Joseph Romanelli
Insider
Cristal N Downing
Cristal N Downing
Insider
Chirfi Guindo
Chirfi Guindo
CMO
2 recent trades