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MRK Insider Trading

Insider Ownership Percentage: 0.17%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $68,979,561.95

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: $150.45
Price Change: ▲ Price Increase of +15.279 (11.30%)
As of 08/19/2026 11:18 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
8/19/2026Archer Investment Corp21,453$2.76M0.4%-11.0%0.001%Search for SEC Filing on Google Icon
8/17/2026Philadelphia Investment Partners LLC2,616$0.36M0.2%N/A0.000%Search for SEC Filing on Google Icon
8/17/2026Birmingham Capital Management Co. Inc. AL22,128$2.84M1.1%N/A0.001%Search for SEC Filing on Google Icon
8/13/2026Osbon Capital Management LLC2,171$0.28M0.2%N/A0.000%Search for SEC Filing on Google Icon
8/13/2026LM Advisors LLC14,000$1.81M0.2%N/A0.001%Search for SEC Filing on Google Icon
8/11/2026TrinityBridge Ltd3,474$0.45M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/11/2026Jupiter Wealth Management LLC13,800$1.77M0.7%N/A0.001%Search for SEC Filing on Google Icon
8/11/2026OVERSEA CHINESE BANKING Corp Ltd7,538$0.97M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/10/2026Great Lakes Advisors LLC75,899$9.75M0.1%N/A0.003%Search for SEC Filing on Google Icon
8/8/2026Oxbow Advisors LLC3,575$0.46M0.0%+8.9%0.000%Search for SEC Filing on Google Icon
8/8/2026Burke & Herbert Bank & Trust Co.20,309$2.61M0.6%-4.6%0.001%Search for SEC Filing on Google Icon
8/8/2026Wealthfront Advisers LLC317,659$40.82M0.1%+2.0%0.013%Search for SEC Filing on Google Icon
8/8/2026Foster & Motley Inc.38,282$4.92M0.2%+4.9%0.002%Search for SEC Filing on Google Icon
8/8/2026Strategic Wealth Advisors LLC5,655$0.73M0.6%+10.1%0.000%Search for SEC Filing on Google Icon
8/8/2026Cypress Asset Management Inc. TX17,282$2.22M0.4%+1.0%0.001%Search for SEC Filing on Google Icon
8/8/2026Main Street Financial Solutions LLC26,862$3.45M0.2%N/A0.001%Search for SEC Filing on Google Icon
8/8/2026Rayburn West Financial Services LLC9,059$1.16M0.6%-14.8%0.000%Search for SEC Filing on Google Icon
8/8/2026First National Bank of Omaha123,043$15.88M0.4%+7.0%0.005%Search for SEC Filing on Google Icon
8/8/2026Fidelity D & D Bancorp Inc.3,669$0.47M0.2%-3.7%0.000%Search for SEC Filing on Google Icon
8/8/2026M. Kulyk & Associates LLC94,863$12.19M2.0%-3.4%0.004%Search for SEC Filing on Google Icon
8/8/2026Gould Capital LLC29,265$3.76M2.1%+0.8%0.001%Search for SEC Filing on Google Icon
8/8/2026Meeder Advisory Services Inc.62,788$8.07M0.3%+0.8%0.003%Search for SEC Filing on Google Icon
8/8/2026Harborfront Financial Group LLC624$80K0.3%N/A0.000%Search for SEC Filing on Google Icon
8/8/2026Meeder Asset Management Inc.71,755$9.22M0.5%-15.3%0.003%Search for SEC Filing on Google Icon
8/8/2026Graney & King LLC250$32K0.0%+400.0%0.000%Search for SEC Filing on Google Icon
8/7/2026Citizens Financial Group Inc. RI261,913$33.66M0.4%-2.9%0.011%Search for SEC Filing on Google Icon
8/7/2026Texas Capital Bank Wealth Management Services Inc19,053$2.45M0.1%+4.7%0.001%Search for SEC Filing on Google Icon
8/7/2026Aegis Wealth Management LLC2,171$0.28M0.1%N/A0.000%Search for SEC Filing on Google Icon
8/7/2026UNIVEST FINANCIAL Corp24,610$3.16M0.2%-1.7%0.001%Search for SEC Filing on Google Icon
8/7/2026Grandfield & Dodd LLC171,554$22.05M1.2%-2.4%0.007%Search for SEC Filing on Google Icon
8/7/2026Quent Capital LLC9,312$1.20M0.1%-2.0%0.000%Search for SEC Filing on Google Icon
8/7/2026IMG Wealth Management Inc.418$54K0.0%+30.6%0.000%Search for SEC Filing on Google Icon
8/7/2026Focused Alpha LLC6,009$0.77M0.2%-2.6%0.000%Search for SEC Filing on Google Icon
8/7/2026B & T Capital Management DBA Alpha Capital Management50,298$6.46M0.8%+1.6%0.002%Search for SEC Filing on Google Icon
8/7/2026Oarsman Capital Inc.2,279$0.29M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.226,999,837$29.17B0.4%+0.5%9.191%Search for SEC Filing on Google Icon
8/7/2026Occidental Asset Management LLC56,777$7.30M0.7%+24.0%0.002%Search for SEC Filing on Google Icon
8/7/2026Dunhill Financial LLC690$89K0.0%+26.4%0.000%Search for SEC Filing on Google Icon
8/7/2026Pallas Capital Advisors LLC62,572$8.04M0.2%-7.4%0.003%Search for SEC Filing on Google Icon
8/7/2026Panoramic Capital Partners LLC2,436$0.31M0.1%+23.2%0.000%Search for SEC Filing on Google Icon
8/7/2026Paragon Financial Partners Inc.3,439$0.45M0.2%+11.5%0.000%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG11,964,180$1.54B0.4%-4.6%0.484%Search for SEC Filing on Google Icon
8/7/2026Perigon Wealth Management LLC81,333$10.45M0.2%+1.4%0.003%Search for SEC Filing on Google Icon
8/7/2026Commerzbank Aktiengesellschaft FI215,121$27.64M0.6%+7.9%0.009%Search for SEC Filing on Google Icon
8/7/2026Covestor Ltd1,294$0.17M0.1%-28.6%0.000%Search for SEC Filing on Google Icon
8/7/2026Phillips Wealth Planners LLC6,685$0.86M0.6%+28.6%0.000%Search for SEC Filing on Google Icon
8/7/2026Trust Co. of Vermont106,435$13.68M0.5%N/A0.004%Search for SEC Filing on Google Icon
8/7/2026Principle Wealth Partners LLC79,812$10.26M0.5%-0.3%0.003%Search for SEC Filing on Google Icon
8/7/2026Focused Wealth Management Inc7,826$1.01M0.1%+8.7%0.000%Search for SEC Filing on Google Icon
8/7/2026Mitsubishi UFJ Asset Management Co. Ltd.6,184,340$794.58M0.4%+7.0%0.250%Search for SEC Filing on Google Icon
8/7/2026Beverly Hills Private Wealth LLC5,600$0.72M0.1%-59.7%0.000%Search for SEC Filing on Google Icon
8/7/2026OneDigital Investment Advisors LLC57,459$7.38M0.1%-1.9%0.002%Search for SEC Filing on Google Icon
8/7/2026Plato Investment Management Ltd74,299$9.49M0.5%+15.3%0.003%Search for SEC Filing on Google Icon
8/7/2026Bell Investment Advisors Inc4,499$0.58M0.1%+23.0%0.000%Search for SEC Filing on Google Icon
8/7/2026Hexagon Capital Partners LLC13,420$1.72M0.2%+2.5%0.001%Search for SEC Filing on Google Icon
8/7/2026AMG National Trust Bank42,236$5.43M0.1%-54.6%0.002%Search for SEC Filing on Google Icon
8/7/2026Compass Capital Management Inc.567,099$72.87M4.4%-3.8%0.023%Search for SEC Filing on Google Icon
8/7/2026Roman Butler Fullerton & Co.8,695$1.08M0.3%+2.9%0.000%Search for SEC Filing on Google Icon
8/7/2026Simplicity Wealth LLC53,267$6.85M0.2%+20.4%0.002%Search for SEC Filing on Google Icon
8/7/2026Baxter Bros Inc.10,391$1.34M0.2%+8.6%0.000%Search for SEC Filing on Google Icon
8/7/2026Uniting Wealth Partners LLC3,965$0.51M0.1%-2.2%0.000%Search for SEC Filing on Google Icon
8/7/2026Wealth Effects LLC10,164$1.31M0.4%+3.6%0.000%Search for SEC Filing on Google Icon
8/7/2026Trivium Point Advisory LLC17,671$2.27M0.2%+34.9%0.001%Search for SEC Filing on Google Icon
8/7/2026First National Bank & Trust Co. of Newtown25,369$3.30M0.7%-3.1%0.001%Search for SEC Filing on Google Icon
8/7/2026Chase Investment Counsel Corp9,815$1.26M0.3%+57.7%0.000%Search for SEC Filing on Google Icon
8/7/2026N.E.W. Advisory Services LLC2,449$0.32M0.0%-3.6%0.000%Search for SEC Filing on Google Icon
8/7/2026HBK Sorce Advisory LLC54,037$6.94M0.1%+1.8%0.002%Search for SEC Filing on Google Icon
8/7/2026Abbot Financial Management Inc.37,313$4.80M1.6%+0.7%0.002%Search for SEC Filing on Google Icon
8/7/2026Peachtree Investment Partners LLC2,255$0.29M0.1%+13.8%0.000%Search for SEC Filing on Google Icon
8/7/2026Tulsa Wealth Advisors INC8,937$1.15M0.2%-6.0%0.000%Search for SEC Filing on Google Icon
8/6/2026German American Bancorp Inc.3,358$0.43M0.0%-6.2%0.000%Search for SEC Filing on Google Icon
8/6/2026Heritage Trust Co84,905$10.91M0.9%+4.2%0.003%Search for SEC Filing on Google Icon
8/6/2026Gould Asset Management LLC CA3,182$0.41M0.1%+10.4%0.000%Search for SEC Filing on Google Icon
8/6/2026Argent Trust Co204,960$26.34M0.8%+4.4%0.008%Search for SEC Filing on Google Icon
8/6/2026J.Safra Asset Management Corp4,298$0.55M0.0%+3.7%0.000%Search for SEC Filing on Google Icon
8/6/2026Flputnam Investment Management Co.248,349$31.91M0.4%-1.0%0.010%Search for SEC Filing on Google Icon
8/6/2026Global Retirement Partners LLC78,760$10.12M0.2%N/A0.003%Search for SEC Filing on Google Icon
8/6/20261ST Source Bank93,431$12.01M0.5%-0.9%0.004%Search for SEC Filing on Google Icon
8/6/2026Fielder Capital Group LLC6,488$0.83M0.2%+23.1%0.000%Search for SEC Filing on Google Icon
8/6/2026SCS Capital Management LLC21,998$2.84M0.0%-2.7%0.001%Search for SEC Filing on Google Icon
8/6/2026CORDA Investment Management LLC.420,154$53.99M3.3%-1.7%0.017%Search for SEC Filing on Google Icon
8/6/2026Silverlake Wealth Management LLC21,599$2.78M0.5%+3.5%0.001%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp18,340,173$2.36B0.4%-2.0%0.743%Search for SEC Filing on Google Icon
8/6/2026Sandro Wealth Management LLC1,778$0.23M0.2%N/A0.000%Search for SEC Filing on Google Icon
8/6/2026PTM Wealth Management LLC3,252$0.43M0.2%+4.0%0.000%Search for SEC Filing on Google Icon
8/6/2026Focus Partners Advisor Solutions LLC86,089$11.06M0.1%-11.9%0.003%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming2,066$0.27M0.0%-5.6%0.000%Search for SEC Filing on Google Icon
8/6/2026ABN AMRO Bank N.V.136,228$17.49M0.2%-7.6%0.006%Search for SEC Filing on Google Icon
8/6/2026Summit Asset Management LLC7,305$0.94M0.1%+13.4%0.000%Search for SEC Filing on Google Icon
8/6/2026Kelleher Financial Advisors12,663$1.63M0.2%+23.2%0.001%Search for SEC Filing on Google Icon
8/6/2026EJMK Ventures LLC5,720$0.74M0.3%+8.6%0.000%Search for SEC Filing on Google Icon
8/6/2026Bellars Harris Wealth Management LLC79,847$10.26M2.1%N/A0.003%Search for SEC Filing on Google Icon
8/6/2026GSA Capital Partners LLP2,493$0.32M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/6/2026Russell Investments Group Ltd.2,578,024$331.93M0.3%+2.0%0.104%Search for SEC Filing on Google Icon
8/6/2026Orca Investment Management LLC19,257$2.48M1.8%+5.8%0.001%Search for SEC Filing on Google Icon
8/6/2026TFR Capital LLC.6,757$0.87M0.2%+4.8%0.000%Search for SEC Filing on Google Icon
8/6/2026OakTrust Wealth Advisors LLC1,612$0.21M0.2%N/A0.000%Search for SEC Filing on Google Icon
8/6/2026Maridea Wealth Management LLC1,709$0.22M0.0%N/A0.000%Search for SEC Filing on Google Icon
8/6/2026Ridgecrest Wealth Partners LLC7,002$0.90M0.4%+2.4%0.000%Search for SEC Filing on Google Icon
8/6/2026Ceera Investments LLC4,299$0.55M0.2%-6.9%0.000%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: $150.45
Low: $144.90
High: $151.82

50 Day Range

MA: $126.19
Low: $114.04
High: $136.09

52 Week Range

Now: $150.45
Low: $77.58
High: $151.82

Volume

15,246,698 shs

Average Volume

10,666,408 shs

Market Capitalization

$371.18 billion

P/E Ratio

119.94

Dividend Yield

2.50%

Beta

0.19

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. BlackRock Inc. — 9.19%
  2. Bank of New York Mellon Corp — 0.74%
  3. Deutsche Bank AG — 0.48%
  4. Mitsubishi UFJ Asset Management Co. Ltd. — 0.25%
  5. Principal Financial Group Inc. — 0.19%
  6. HighTower Advisors LLC — 0.15%
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. Jennison Associates LLC
  2. Deutsche Bank AG
  3. Bank of New York Mellon Corp
  4. ANTIPODES PARTNERS Ltd
  5. QV Investors Inc.
  6. United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund
  7. KBC Group NV
  8. AMG National Trust Bank
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. Assenagon Asset Management S.A.
  2. BlackRock Inc.
  3. Mitsubishi UFJ Asset Management Co. Ltd.
  4. Munich Reinsurance Co Stock Corp in Munich
  5. Mirae Asset Global Investments Co. Ltd.
  6. Mitsubishi UFJ Trust & Banking Corp
  7. Trust Co. of Vermont
  8. Handelsbanken Fonder AB

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