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Merck & Co., Inc.

MRK
Exchange
NYSE
Industry
Pharmaceutical Preparations
SEC CIK
0000310158

In the last 90 days, Merck & Co., Inc. insiders filed 0 open-market purchases and 7 sales; 3,855 institutions reported holding it in 13F filings for Q2 2026, worth $254.3B in total; 4 superinvestors hold it, including Harris Associates (Oakmark) and Fairfax Financial.

13F holders, Q2 2025

Institutional positions in Merck & Co., Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
3,337
−73 vs. Q1 2025
Shares held
1.97B
−5.75M (−0.3%) vs. Q1 2025
Total value
$155.9B
−$21.3B (−12.0%) vs. Q1 2025
New holders
178
1,301 more added
Sold out
251
1,539 more reduced

49 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 3,338 institutions
Q1 2021: 2,693 institutionsQ2 2021: 2,684 institutionsQ3 2021: 2,658 institutionsQ4 2021: 2,910 institutionsQ1 2022: 2,962 institutionsQ2 2022: 3,020 institutionsQ3 2022: 2,997 institutionsQ4 2022: 3,244 institutionsQ1 2023: 3,188 institutionsQ2 2023: 3,262 institutionsQ3 2023: 3,222 institutionsQ4 2023: 3,444 institutionsQ1 2024: 3,547 institutionsQ2 2024: 3,558 institutionsQ3 2024: 3,502 institutionsQ4 2024: 3,619 institutionsQ1 2025: 3,460 institutionsQ2 2025: 3,338 institutionsQ3 2025: 3,320 institutionsQ4 2025: 3,675 institutionsQ1 2026: 3,813 institutionsQ2 2026: 3,855 institutions
Value heldQ2 2025: $155.9B
Q1 2021: $143.2BQ2 2021: $144.3BQ3 2021: $138.8BQ4 2021: $142.2BQ1 2022: $152.1BQ2 2022: $171.5BQ3 2022: $162.7BQ4 2022: $212.2BQ1 2023: $205.1BQ2 2023: $222.8BQ3 2023: $197.7BQ4 2023: $211.6BQ1 2024: $256.9BQ2 2024: $242.3BQ3 2024: $221.8BQ4 2024: $196.9BQ1 2025: $177.7BQ2 2025: $155.9BQ3 2025: $159.8BQ4 2025: $206.6BQ1 2026: $231.9BQ2 2026: $254.3B
Institutions holding MRK and their total value by quarter
QuarterHoldersValue
Q2 20263,855$254.3B
Q1 20263,813$231.9B
Q4 20253,675$206.6B
Q3 20253,320$159.8B
Q2 20253,338$155.9B
Q1 20253,460$177.7B
Q4 20243,619$196.9B
Q3 20243,502$221.8B
Q2 20243,558$242.3B
Q1 20243,547$256.9B
Q4 20233,444$211.6B
Q3 20233,222$197.7B
Q2 20233,262$222.8B
Q1 20233,188$205.1B
Q4 20223,244$212.2B
Q3 20222,997$162.7B
Q2 20223,020$171.5B
Q1 20222,962$152.1B
Q4 20212,910$142.2B
Q3 20212,658$138.8B
Q2 20212,684$144.3B
Q1 20212,693$143.2B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q1 2025.

Institutions holding MRK in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Cahill Financial Advisors Inc4,744$375.5K0.05%+596+14.4%Added
Dupree Financial Group, LLC4,748$375.9K0.15%−21−0.4%Reduced
Optimum Investment Advisors4,750$376.0K0.16%−50−1.0%Reduced
Acima Private Wealth, LLC4,764$377.1K0.13%00.0%Unchanged
Balboa Wealth Partners4,773$377.8K0.08%+378+8.6%Added
Connors Investor Services Inc4,774$377.9K0.03%−125−2.6%Reduced
Meridian Investment Counsel Inc.4,777$378.1K0.10%−20.0%Reduced
Summit Wealth Group LLC4,740$379.0K0.10%+4,740New
Hollencrest Capital Management4,788$379.0K0.02%−401−7.7%Reduced
Catalyst Funds Management Pty Ltd4,800$380.0K0.10%+4,800New
AssuredPartners Investment Advisors, LLC4,801$380.0K0.09%−2,620−35.3%Reduced
Retirement Planning Group4,812$380.9K0.02%+177+3.8%Added
Paragon Capital Management Ltd4,813$381.1K0.07%+12+0.2%Added
Fortis Group Advisors, LLC4,884$381.6K0.07%+17+0.3%Added
Arthur M. Cohen & Associates, LLC4,825$381.9K0.07%+1,180+32.4%Added
Wagner Wealth Management, LLC4,831$382.5K0.09%−747−13.4%Reduced
Presilium Private Wealth, LLC4,834$382.7K0.08%+1,314+37.3%Added
Steigerwald, Gordon & Koch Inc.4,837$382.9K0.04%−1,038−17.7%Reduced
RB Capital Management, LLC4,844$383.5K0.09%−713−12.8%Reduced
Baron Silver Stevens Financial Advisors, LLC4,846$383.6K0.06%+337+7.5%Added
BOS Asset Management, LLC4,851$384.0K0.12%00.0%Unchanged
Consolidated Portfolio Review Corp4,854$384.2K0.05%+72+1.5%Added
Fairvoy Private Wealth, LLC4,865$385.1K0.10%−390−7.4%Reduced
Potentia Wealth4,880$386.3K0.22%−670−12.1%Reduced
Hamilton Capital, LLC4,883$386.6K0.02%−1,548−24.1%Reduced
Icon Advisers Inc4,890$387.1K0.09%−4,800−49.5%Reduced
Sigma Investment Counselors Inc4,898$387.7K0.02%+144+3.0%Added
Nelson Capital Management, LLC4,908$388.5K0.05%−316−6.0%Reduced
Bender Robert & Associates4,912$388.8K0.09%−20−0.4%Reduced
Novak & Powell Financial Services, Inc.4,914$389.0K0.27%+19+0.4%Added
Plan A Wealth LLC4,918$389.3K0.22%+55+1.1%Added
Gentry Private Wealth, LLC4,918$389.3K0.30%+68+1.4%Added
Harbour Trust & Investment Management Co4,925$389.9K0.04%00.0%Unchanged
Legacy Trust4,926$389.9K0.10%−21−0.4%Reduced
Mathes Company, Inc.4,925$390.0K0.14%−50−1.0%Reduced
S.A. Mason LLC4,950$391.8K0.19%−1,074−17.8%Reduced
Cohen Investment Advisors LLC4,952$392.0K0.20%+291+6.2%Added
Facet Wealth, Inc.5,032$393.1K0.01%+397+8.6%Added
Lazari Capital Management, Inc.4,981$394.3K0.15%+103+2.1%Added
Elefante Mark B4,993$395.2K0.30%00.0%Unchanged
Floyd Financial Group LLC4,889$395.7K0.37%−48−1.0%Reduced
Financial Enhancement Group LLC4,757$396.5K0.06%−11−0.2%Reduced
Gemmer Asset Management LLC5,011$396.7K0.04%+395+8.6%Added
Summit Wealth & Retirement Planning, Inc.5,016$397.1K0.11%+279+5.9%Added
Covestor Ltd5,027$398.0K0.23%+2,479+97.3%Added
Investment Partners, Ltd.5,031$398.3K0.15%−158−3.0%Reduced
Rosenberg Matthew Hamilton5,033$398.4K0.09%+1,349+36.6%Added
Wingate Wealth Advisors, Inc.5,037$398.7K0.36%+263+5.5%Added
Aspen Grove Capital, LLC4,995$399.5K0.07%+1,799+56.3%Added
Mendel Capital Management LLC5,052$399.9K0.23%+100+2.0%Added
Range Financial Group LLC5,074$401.7K0.16%+307+6.4%Added
Uhlmann Price Securities, LLC5,080$402.1K0.29%+962+23.4%Added
Compass Wealth Management LLC5,084$402.4K0.10%−954−15.8%Reduced
Hall Capital Management Co Inc5,093$403.2K0.17%−1,004−16.5%Reduced
Fca Corp5,102$403.9K0.12%−336−6.2%Reduced
Lesa Sroufe & Co5,100$404.0K0.37%00.0%Unchanged
First National Bank5,109$404.4K0.23%+279+5.8%Added
Beacon Investment Advisors LLC5,118$404.8K0.17%+20.0%Added
Prossimo Advisors, LLC5,116$405.0K0.33%−382−6.9%Reduced
Farmers & Merchants Trust Co of Chambersburg PA5,120$405.0K0.13%−50−1.0%Reduced
Blake Schutter Theil Wealth Advisors, LLC5,138$406.7K0.46%+3+0.1%Added
Chemistry Wealth Management LLC5,149$407.6K0.09%−466−8.3%Reduced
Garda Capital Partners LP5,151$407.8K0.12%+5,151New
Barr E S & Co5,164$408.8K0.02%−1,617−23.8%Reduced
Maxele Advisors, LLC5,166$409.0K0.36%−370−6.7%Reduced
Hummer Financial Advisory Services Inc5,116$409.1K0.31%00.0%Unchanged
Yarger Wealth Strategies, LLC5,188$410.7K0.21%+2,305+80.0%Added
Tranquility Partners, LLC5,188$410.7K0.15%−16−0.3%Reduced
Accretive Wealth Partners, LLC5,189$410.8K0.13%−100−1.9%Reduced
Evergreen Wealth Solutions, LLC5,192$411.0K0.25%−52−1.0%Reduced
Severin Investments, LLC5,194$411.1K0.39%−3,914−43.0%Reduced
OneAscent Wealth Management LLC5,199$412.0K0.15%+920+21.5%Added
Liberty Capital Management, Inc.5,209$412.3K0.08%00.0%Unchanged
Lyell Wealth Management, LP5,224$413.5K0.03%−315−5.7%Reduced
Union Savings Bank5,313$415.0K0.19%−30−0.6%Reduced
CWC Advisors, LLC.5,248$415.4K0.21%−304−5.5%Reduced
Moseley Investment Management Inc5,257$416.2K0.14%−678−11.4%Reduced
Ramiah Investment Group5,271$417.3K0.45%+691+15.1%Added
Simon Quick Advisors, LLC5,278$417.8K0.02%−11,972−69.4%Reduced
Octavia Wealth Advisors, LLC5,226$417.8K0.05%−978−15.8%Reduced
SeaBridge Investment Advisors LLC5,280$418.0K0.08%−584−10.0%Reduced
Sound Income Strategies, LLC5,281$418.0K0.02%−990−15.8%Reduced
St. Nicholas Private Asset Management, Inc5,281$418.0K0.39%−10.0%Reduced
B&L Asset Management LLC5,287$418.5K0.24%+20+0.4%Added
Indiana Trust & Investment Management CO5,311$420.4K0.14%+23+0.4%Added
Astoria Portfolio Advisors LLC.5,006$421.0K0.12%−70−1.4%Reduced
Rahlfs Capital, LLC5,325$421.5K0.39%00.0%Unchanged
Cora Capital Advisors LLC5,343$422.9K0.19%+125+2.4%Added
Rialto Wealth Management, LLC5,346$423.2K0.12%−24−0.4%Reduced
Summa Corp.5,360$424.3K0.22%+480+9.8%Added
Traub Capital Management LLC5,390$426.7K0.39%+5,390New
West Michigan Advisors, LLC5,358$428.4K0.12%−35,956−87.0%Reduced
Carl P. Sherr & Co., LLC5,412$428.5K0.22%−225−4.0%Reduced
Terry L. Blaker5,419$429.0K0.02%−1,300−19.3%Reduced
Atlanta Consulting Group Advisors, LLC5,366$429.2K0.12%−3,930−42.3%Reduced
Capital International Sarl5,438$430.5K0.01%−758−12.2%Reduced
Penobscot Wealth Management5,458$432.0K0.15%+2,251+70.2%Added
Emprise Bank5,472$433.2K0.21%−846−13.4%Reduced
Garner Asset Management Corp5,479$433.7K0.20%−1,110−16.8%Reduced
Roberts Glore & Co Inc5,485$434.2K0.13%+780+16.6%Added