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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, Q3 2023

Institutional positions in Merck & Co., Inc. as of Sep 30, 2023. 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
3,221
+1 vs. Q2 2023
Shares held
1.92B
−11.1M (−0.6%) vs. Q2 2023
Total value
$197.7B
−$24.4B (−11.0%) vs. Q2 2023
New holders
148
1,298 more added
Sold out
147
1,409 more reduced

41 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: 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 holdersQ3 2023: 3,221 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 heldQ3 2023: $197.7B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2023.

Institutions holding MRK in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Summit Trail Advisors, LLC27,392$2.84M0.10%+3,306+13.7%Added
BigSur Wealth Management LLC27,398$2.84M1.43%−735−2.6%Reduced
Mayflower Financial Advisors, LLC27,704$2.85M0.43%−693−2.4%Reduced
Arkadios Wealth Advisors27,798$2.86M0.27%+10,714+62.7%Added
Watchman Group, Inc.27,822$2.86M1.22%+608+2.2%Added
Johnson Financial Group, Inc.27,754$2.87M0.20%−1,254−4.3%Reduced
Little House Capital LLC27,915$2.87M1.18%+4,000+16.7%Added
Brandywine Oak Private Wealth LLC27,920$2.87M0.34%−214−0.8%Reduced
Telemus Capital, LLC28,015$2.88M0.27%−1,851−6.2%Reduced
Duff & Phelps Investment Management Co28,046$2.89M0.04%+254+0.9%Added
Ontario Teachers Pension Plan Board28,064$2.89M0.03%+4,507+19.1%Added
Hartford Financial Management Inc.28,086$2.89M0.74%−339−1.2%Reduced
Pensionfund Sabic28,100$2.89M1.02%00.0%Unchanged
Dynamic Technology Lab Private Ltd28,118$2.90M0.29%+28,118New
180 Wealth Advisors, LLC28,151$2.90M0.65%+1,345+5.0%Added
Archer Investment Corp28,168$2.90M1.02%+579+2.1%Added
Shoker Investment Counsel, Inc.28,252$2.91M1.26%−358−1.3%Reduced
Financial Advisory Service, Inc.28,270$2.91M0.31%+132+0.5%Added
Centre Asset Management, LLC28,278$2.91M0.71%−997−3.4%Reduced
Legacy Private Trust Co.28,285$2.91M0.25%−888−3.0%Reduced
Independent Solutions Wealth Management, LLC28,421$2.93M0.81%+1,668+6.2%Added
AIMZ Investment Advisors, LLC28,460$2.93M1.30%−99−0.3%Reduced
Stone Point Wealth LLC28,467$2.93M1.26%+1,557+5.8%Added
First PREMIER Bank28,520$2.94M0.90%−541−1.9%Reduced
Brighton Jones LLC28,723$2.96M0.15%+819+2.9%Added
Phoenix Wealth Advisors28,767$2.96M1.74%+672+2.4%Added
Western Wealth Management, LLC28,822$2.97M0.25%+1,357+4.9%Added
AdvisorNet Financial, Inc28,827$2.97M0.27%−10,755−27.2%Reduced
Pinkerton Retirement Specialists, LLC28,866$2.97M0.65%−2,047−6.6%Reduced
Golden State Equity Partners28,899$2.98M0.83%−134−0.5%Reduced
Inscription Capital, LLC28,917$2.98M0.97%−50−0.2%Reduced
IMA Wealth, Inc.28,933$2.98M0.77%−709−2.4%Reduced
Harbor Investment Advisory, LLC28,942$2.98M0.39%+1,584+5.8%Added
Berkeley, Inc29,018$2.99M2.04%−69−0.2%Reduced
Trustmark National Bank Trust Department29,019$2.99M0.29%−6,367−18.0%Reduced
Arden Trust Co29,057$2.99M0.50%−2,278−7.3%Reduced
Capital Investment Advisory Services, LLC29,073$2.99M0.30%+521+1.8%Added
Trust Asset Management LLC29,128$3.00M0.32%00.0%Unchanged
Harvey Investment Co LLC29,288$3.02M0.39%00.0%Unchanged
Community Trust & Investment Co29,389$3.03M0.25%+47+0.2%Added
Checchi Capital Advisers, LLC29,399$3.03M0.28%−1,553−5.0%Reduced
Chelsea Counsel Co29,221$3.03M1.56%00.0%Unchanged
Essex Savings Bank29,497$3.04M1.02%−226−0.8%Reduced
Deseret Mutual Benefit Administrators29,512$3.04M1.49%−3,625−10.9%Reduced
Windward Capital Management Co29,519$3.04M0.30%−29−0.1%Reduced
Vickerman Investment Advisors, Inc.29,636$3.05M1.25%−419−1.4%Reduced
Wexford Capital LP29,662$3.05M0.69%+27,896+1,579.6%Added
Kensington Investment Counsel, LLC29,667$3.05M1.90%+2,226+8.1%Added
Hall Laurie J Trustee29,675$3.06M1.30%+100+0.3%Added
Baker Tilly Wealth Management, LLC29,677$3.06M0.50%−20,794−41.2%Reduced
Duncker Streett & Co Inc29,779$3.07M0.71%−347−1.2%Reduced
Strengthening Families & Communities, LLC29,786$3.07M1.33%+1,288+4.5%Added
Advent Capital Management30,000$3.09M0.07%+30,000New
Kamunting Street Capital Management, L.P.30,000$3.09M2.34%+30,000New
SFMG, LLC30,007$3.09M0.32%+129+0.4%Added
Welch Group, LLC30,080$3.10M0.18%+35+0.1%Added
Benjamin Edwards Inc30,238$3.11M0.74%−2,349−7.2%Reduced
Abbot Financial Management, Inc.30,299$3.12M2.10%−972−3.1%Reduced
Fairhaven Wealth Management, LLC30,340$3.12M1.25%+831+2.8%Added
Silvant Capital Management LLC30,138$3.12M0.19%00.0%Unchanged
PKO Investment Management Joint-Stock Co30,376$3.13M0.42%−12,500−29.2%Reduced
Money Concepts Capital Corp30,528$3.14M0.33%+1,103+3.7%Added
Callahan Advisors, LLC30,573$3.15M0.40%+1,577+5.4%Added
First City Capital Management, Inc.30,705$3.16M1.98%−50−0.2%Reduced
Forum Financial Management, LP30,851$3.18M0.07%+1,676+5.7%Added
Nicollet Investment Management, Inc.30,883$3.18M1.42%−120.0%Reduced
Marietta Investment Partners LLC31,010$3.19M0.89%−35,607−53.5%Reduced
BFSG, LLC31,038$3.19M0.52%−125−0.4%Reduced
EagleClaw Capital Managment, LLC31,063$3.20M0.73%+750+2.5%Added
IHT Wealth Management, LLC31,118$3.20M0.16%+1,526+5.2%Added
Delta Financial Group, Inc.31,153$3.21M1.11%−1,054−3.3%Reduced
Red Cedar Investment Management, LLC31,230$3.22M0.49%+1,118+3.7%Added
Stokes Capital Advisors, LLC31,272$3.22M1.12%−26−0.1%Reduced
Wilkinson Global Asset Management LLC31,373$3.23M0.25%−452−1.4%Reduced
Blue Fin Capital, Inc.31,455$3.24M0.95%+170+0.5%Added
Harbor Advisory Corp31,479$3.24M1.17%−207−0.7%Reduced
Alphadyne Asset Management LP31,629$3.26M1.57%+27,187+612.0%Added
Sterling Investment Advisors, Ltd.31,641$3.26M1.14%+2,486+8.5%Added
Independent Financial Group, LLC31,650$3.26M0.21%+2,316+7.9%Added
Kentucky Farm Bureau Mutual Insurance Co31,718$3.27M0.94%00.0%Unchanged
Financial Partners Group, LLC31,780$3.27M1.57%+123+0.4%Added
Madison Asset Management, LLC31,800$3.27M0.05%−188−0.6%Reduced
Allegheny Financial Group LTD31,802$3.27M1.23%+4,387+16.0%Added
Aries Wealth Management31,547$3.29M1.29%+960+3.1%Added
Prestige Wealth Management Group LLC31,784$3.30M0.81%−634−2.0%Reduced
Means Investment Co., Inc.32,016$3.30M0.54%−868−2.6%Reduced
Asio Capital, LLC31,876$3.30M0.88%+977+3.2%Added
Iowa State Bank32,116$3.31M0.86%−432−1.3%Reduced
Sumitomo Life Insurance Co32,164$3.31M0.09%−423−1.3%Reduced
Morse Asset Management, Inc32,215$3.32M1.05%−4,325−11.8%Reduced
Maven Securities LTD32,302$3.33M0.37%+14,812+84.7%Added
Alpha Omega Wealth Management LLC32,422$3.34M0.58%−494−1.5%Reduced
McIntyre Freedman & Flynn Investment Advisers Inc32,563$3.35M2.83%−99−0.3%Reduced
Atlantic Trust, LLC32,639$3.36M1.11%+515+1.6%Added
Secure Asset Management, LLC32,745$3.37M1.01%+559+1.7%Added
Steel Peak Wealth Management LLC32,556$3.37M0.21%−82,718−71.8%Reduced
Main Street Financial Solutions, LLC32,827$3.38M0.48%+1,977+6.4%Added
Essex LLC32,916$3.39M0.95%+2,132+6.9%Added
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors32,921$3.39M0.81%−988−2.9%Reduced
Comprehensive Financial Consultants Institutional, Inc.32,944$3.39M1.78%+1,720+5.5%Added