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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: 3,337 institutions
Q1 2021: 2,693 institutionsQ2 2021: 2,684 institutionsQ3 2021: 2,658 institutionsQ4 2021: 2,910 institutionsQ1 2022: 2,961 institutionsQ2 2022: 3,019 institutionsQ3 2022: 2,996 institutionsQ4 2022: 3,243 institutionsQ1 2023: 3,187 institutionsQ2 2023: 3,261 institutionsQ3 2023: 3,221 institutionsQ4 2023: 3,443 institutionsQ1 2024: 3,546 institutionsQ2 2024: 3,557 institutionsQ3 2024: 3,501 institutionsQ4 2024: 3,618 institutionsQ1 2025: 3,459 institutionsQ2 2025: 3,337 institutionsQ3 2025: 3,319 institutionsQ4 2025: 3,674 institutionsQ1 2026: 3,812 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 20263,812$231.9B
Q4 20253,674$206.6B
Q3 20253,319$159.8B
Q2 20253,337$155.9B
Q1 20253,459$177.7B
Q4 20243,618$196.9B
Q3 20243,501$221.8B
Q2 20243,557$242.3B
Q1 20243,546$256.9B
Q4 20233,443$211.6B
Q3 20233,221$197.7B
Q2 20233,261$222.8B
Q1 20233,187$205.1B
Q4 20223,243$212.2B
Q3 20222,996$162.7B
Q2 20223,019$171.5B
Q1 20222,961$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
Mitchell Sinkler & Starr44,808$3.55M1.70%−55,625−55.4%Reduced
Oddo BHF Asset Management SAS44,806$3.55M0.13%−3,163−6.6%Reduced
R.H. Dinel Investment Counsel, Inc.44,742$3.54M2.36%−2,400−5.1%Reduced
Clear Harbor Asset Management, LLC44,631$3.53M0.27%+57+0.1%Added
Mubadala Investment Co PJSC44,613$3.53M0.02%+44,613New
Vickerman Investment Advisors, Inc.44,533$3.53M0.76%+7,329+19.7%Added
Trilogy Capital Inc.44,531$3.53M0.17%+33,904+319.0%Added
Thomasville National Bank44,452$3.52M0.24%−1,710−3.7%Reduced
Semper Augustus Investments Group LLCSuperinvestorSemper Augustus44,443$3.52M0.50%00.0%Unchanged
Private Trust Co NA44,377$3.51M0.33%+699+1.6%Added
Montgomery Investment Management Inc44,323$3.51M1.36%−1,500−3.3%Reduced
Citizens Business Bank44,293$3.51M0.68%+346+0.8%Added
Citizens National Bank Trust Department44,290$3.51M0.70%−1,873−4.1%Reduced
Costello Asset Management, INC44,147$3.49M1.31%−2,215−4.8%Reduced
Prosperity Consulting Group, LLC43,921$3.48M0.25%−3,220−6.8%Reduced
Edgemoor Investment Advisors, Inc.43,807$3.47M0.30%−2,858−6.1%Reduced
Hengehold Capital Management LLC43,656$3.46M0.31%+1,313+3.1%Added
Secure Asset Management, LLC43,608$3.45M0.64%−5,657−11.5%Reduced
Bell & Brown Wealth Advisors, LLC43,539$3.45M1.23%−129−0.3%Reduced
Studio Investment Management LLC43,051$3.44M0.69%−80.0%Reduced
Kensington Investment Counsel, LLC43,490$3.44M1.48%+1,256+3.0%Added
Spinnaker Trust43,465$3.44M0.21%+810+1.9%Added
National Asset Management, Inc.43,266$3.42M0.17%−72,307−62.6%Reduced
Parr McKnight Wealth Management Group, LLC43,258$3.42M0.47%+1,978+4.8%Added
BLB&B Advisors, LLC43,212$3.42M0.16%−1,301−2.9%Reduced
Moore Capital Management, LP43,074$3.41M0.07%−85,493−66.5%Reduced
Finer Wealth Management, Inc.42,762$3.39M1.81%+430+1.0%Added
Trust Co of Kansas42,733$3.38M1.61%−381−0.9%Reduced
Global Retirement Partners, LLC42,655$3.38M0.08%+42,655New
Strengthening Families & Communities, LLC42,094$3.37M1.87%+1,093+2.7%Added
Confluence Wealth Services, Inc.42,422$3.36M0.18%+646+1.5%Added
Asset Advisors Investment Management, LLC42,359$3.35M0.33%−5,853−12.1%Reduced
Dana Investment Advisors, Inc.42,230$3.34M0.11%−3,199−7.0%Reduced
Globeflex Capital L P42,212$3.34M0.28%00.0%Unchanged
Sompo Asset Management Co., Ltd.42,178$3.34M0.58%−1,960−4.4%Reduced
Catherine Avery Investment Management LLC42,166$3.34M2.54%+6,319+17.6%Added
FRG Family Wealth Advisors LLC41,878$3.32M0.58%−263−0.6%Reduced
Leavell Investment Management, Inc.41,415$3.31M0.15%−2,329−5.3%Reduced
Verdence Capital Advisors LLC41,748$3.30M0.23%−4,228−9.2%Reduced
Roundview Capital LLC41,633$3.30M0.22%−2,569−5.8%Reduced
Mather Group, LLC.41,560$3.29M0.04%−880−2.1%Reduced
Patton Albertson Miller Group, LLC41,550$3.29M0.43%−762−1.8%Reduced
Red Spruce Capital, LLC41,519$3.29M1.42%−808−1.9%Reduced
First Pacific Financial41,473$3.28M0.48%+32,266+350.5%Added
Principal Securities, Inc.41,452$3.28M0.06%−8,668−17.3%Reduced
Wolverine Asset Management LLC41,189$3.26M0.05%+21,314+107.2%Added
Change Path, LLC41,131$3.26M0.09%+2,680+7.0%Added
Brown Shipley& Co Ltd41,099$3.25M1.79%−2,446−5.6%Reduced
Community Trust & Investment Co41,010$3.25M0.19%+201+0.5%Added
Rowland & Co Investment Counsel40,898$3.24M0.67%+200+0.5%Added
Dynamic Advisor Solutions LLC40,856$3.23M0.10%−5,564−12.0%Reduced
Profund Advisors LLC40,622$3.22M0.12%−2,334−5.4%Reduced
Sava Infond d.o.o.40,570$3.21M0.50%+5,700+16.3%Added
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A.40,429$3.20M0.38%+40,429New
Petredis Investment Advisors LLC40,403$3.20M0.28%+392+1.0%Added
HORAN Wealth, LLC40,276$3.19M0.98%+40,276New
WealthTrust Axiom LLC40,235$3.19M0.94%−1,659−4.0%Reduced
Guild Investment Management, Inc.39,760$3.18M2.76%+39,760New
Ssa Swiss Advisors AG38,025$3.17M1.53%+7,180+23.3%Added
Arvest Investments, Inc.40,003$3.17M0.48%−5,313−11.7%Reduced
Sigma Planning Corp39,945$3.16M0.10%+1,195+3.1%Added
St Germain D J Co Inc39,871$3.16M0.14%+5,756+16.9%Added
Qsemble Capital Management, LP39,848$3.15M0.30%−66,113−62.4%Reduced
Burling Wealth Partners, LLC39,819$3.15M0.58%−6,233−13.5%Reduced
NorthRock Partners, LLC39,328$3.14M0.08%+6,614+20.2%Added
180 Wealth Advisors, LLC39,599$3.13M0.44%+4,970+14.4%Added
Whitener Capital Management, Inc.39,587$3.13M0.83%+634+1.6%Added
Bedell Frazier Investment Counseling, LLC39,569$3.13M0.79%+39,569New
Beech Hill Advisors, Inc.39,448$3.12M1.41%−5,279−11.8%Reduced
Caxton Associates LLP39,421$3.12M0.08%+7,458+23.3%Added
BancorpSouth Bank39,362$3.12M0.21%+307+0.8%Added
CTC Alternative Strategies, Ltd.39,320$3.11M2.72%+39,320New
Tower Bridge Advisors39,293$3.11M0.33%−4,573−10.4%Reduced
Davis R M Inc39,254$3.11M0.06%−33,034−45.7%Reduced
Johnson Financial Group, Inc.38,727$3.10M0.14%+6,315+19.5%Added
Richard Bernstein Advisors LLC39,005$3.09M0.08%00.0%Unchanged
Independence Bank of Kentucky38,946$3.08M0.44%−1,701−4.2%Reduced
Tema ETFs LLC38,884$3.08M0.82%−306−0.8%Reduced
Manchester Capital Management LLC38,851$3.08M0.40%−3,180−7.6%Reduced
Novem Group38,828$3.07M0.39%+3,159+8.9%Added
Essex Financial Services, Inc.38,696$3.06M0.20%+190+0.5%Added
J.P. Marvel Investment Advisors, LLC38,670$3.06M0.49%00.0%Unchanged
Uncommon Cents Investing LLC38,621$3.06M0.82%+1,986+5.4%Added
Diversify Wealth Management, LLC38,031$3.05M0.19%+6,897+22.2%Added
Aviance Capital Partners, LLC38,133$3.02M0.39%−1,562−3.9%Reduced
Leo Wealth, LLC38,118$3.02M0.23%+15,115+65.7%Added
SevenBridge Financial Group, LLC37,431$3.01M0.53%−7,453−16.6%Reduced
Synergy Financial Management, LLC37,949$3.00M0.34%+3,127+9.0%Added
Texas Yale Capital Corp.37,883$3.00M0.10%+835+2.3%Added
Moody Lynn & Lieberson, LLC37,793$2.99M0.17%−9,878−20.7%Reduced
Qtron Investments LLC37,507$2.97M0.38%00.0%Unchanged
Foster & Motley Inc37,479$2.97M0.17%−2,032−5.1%Reduced
TFC Financial Management37,329$2.95M0.40%−1,695−4.3%Reduced
Marex Group plc37,192$2.94M0.06%+3,135+9.2%Added
Berkshire Asset Management LLC37,141$2.94M0.13%−981−2.6%Reduced
CWA Asset Management Group, LLC37,038$2.93M0.12%−2,386−6.1%Reduced
Mechanics Bank Trust Department36,994$2.93M0.42%+133+0.4%Added
First National Bank of Omaha36,987$2.93M0.19%−19,760−34.8%Reduced
Founders Capital Management36,935$2.92M1.75%+94+0.3%Added
White Pine Capital LLC36,901$2.92M0.93%−133−0.4%Reduced