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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, Q4 2023

Institutional positions in Merck & Co., Inc. as of Dec 31, 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
3,443
+275 vs. Q3 2023
Shares held
1.94B
+26.5M (+1.4%) vs. Q3 2023
Total value
$211.6B
+$14.5B (+7.4%) vs. Q3 2023
New holders
382
1,247 more added
Sold out
107
1,486 more reduced

53 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 3,443 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 heldQ4 2023: $211.6B
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, Q4 2023

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2023.

Institutions holding MRK in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
McIntyre Freedman & Flynn Investment Advisers Inc32,564$3.55M2.84%+10.0%Added
Allegheny Financial Group LTD32,576$3.55M1.14%+774+2.4%Added
Capital Group Private Client Services, Inc.32,659$3.56M0.04%−10,020−23.5%Reduced
PKO Investment Management Joint-Stock Co32,676$3.56M0.45%+2,300+7.6%Added
Marathon Capital Management32,704$3.57M0.90%−375−1.1%Reduced
Quadrant Capital Group LLC32,926$3.59M0.31%−427−1.3%Reduced
McGinn Investment Management, Inc.32,940$3.59M2.61%−873−2.6%Reduced
Pettee Investors, Inc.32,958$3.59M1.59%00.0%Unchanged
Warren Averett Asset Management, LLC33,040$3.60M0.13%−21,889−39.8%Reduced
Iowa State Bank33,096$3.61M0.87%+980+3.1%Added
Fidelis Capital Partners, LLC33,387$3.64M0.81%+12,534+60.1%Added
Arvest Trust Co N A33,615$3.66M0.22%−2,587−7.1%Reduced
Court Place Advisors, LLC33,631$3.67M1.21%−298−0.9%Reduced
Meeder Advisory Services, Inc.33,663$3.67M0.42%−1,515−4.3%Reduced
Pettyjohn, Wood & White, Inc33,691$3.67M0.80%−197−0.6%Reduced
Schnieders Capital Management LLC33,691$3.67M0.81%−4,394−11.5%Reduced
A. D. Beadell Investment Counsel, Inc.33,702$3.67M3.50%−238−0.7%Reduced
Girard Partners Ltd.33,971$3.70M0.38%−829−2.4%Reduced
Supplemental Annuity Collective Trust of NJ34,000$3.71M1.29%00.0%Unchanged
First Financial Bank - Trust Division34,035$3.71M0.38%−783−2.2%Reduced
Trivant Custom Portfolio Group, LLC34,148$3.72M2.48%−91−0.3%Reduced
Comprehensive Financial Consultants Institutional, Inc.34,167$3.72M1.73%+1,223+3.7%Added
Tealwood Asset Management Inc34,280$3.74M1.78%−206−0.6%Reduced
Nelson Capital Management, LLC34,283$3.74M0.84%−825−2.3%Reduced
3Chopt Investment Partners, LLC34,071$3.74M1.38%+586+1.8%Added
Stonebrook Private Inc.34,373$3.75M1.25%+34,373New
Keene & Associates, Inc.34,389$3.75M3.11%−358−1.0%Reduced
River Wealth Advisors LLC34,422$3.75M0.60%+1,051+3.1%Added
Cornercap Investment Counsel Inc34,459$3.76M0.61%+428+1.3%Added
South State Corp.34,482$3.76M0.32%−1,304−3.6%Reduced
Washington Trust Co34,495$3.76M0.15%−810−2.3%Reduced
Carnegie Capital Asset Management, LLC34,536$3.77M0.13%−7,548−17.9%Reduced
Lodestone Wealth Management LLC34,537$3.77M2.19%+47+0.1%Added
Ziegler Capital Management, LLC34,587$3.77M0.17%−2,742−7.3%Reduced
St Germain D J Co Inc34,753$3.79M0.20%−1,066−3.0%Reduced
Signature Wealth Management Group34,828$3.80M1.76%+34,828New
Pegasus Asset Management, Inc.34,856$3.80M1.63%+150.0%Added
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors34,880$3.80M0.75%+1,959+6.0%Added
Walter & Keenan Financial Consulting Co34,895$3.80M1.36%+470+1.4%Added
Charter Research & Investment Group, Inc.34,902$3.81M3.16%00.0%Unchanged
TSP Capital Management Group, LLC34,976$3.81M1.32%00.0%Unchanged
Opus Investment Management Inc35,000$3.82M2.19%00.0%Unchanged
River & Mercantile Asset Management LLP35,000$3.82M0.72%+35,000New
McKinley Capital Management LLC /Delaware35,016$3.82M0.49%−30,104−46.2%Reduced
Hancock Whitney Corp35,047$3.82M0.14%−1,643−4.5%Reduced
Kensington Investment Counsel, LLC35,060$3.82M2.00%+5,393+18.2%Added
Altrius Capital Management Inc35,129$3.83M1.07%+220+0.6%Added
Asio Capital, LLC35,062$3.85M0.90%+3,186+10.0%Added
Ramsay, Stattman, Vela & Price, Inc.35,405$3.86M0.79%−870−2.4%Reduced
Marino, Stram & Associates LLC35,523$3.87M1.00%−227−0.6%Reduced
Creegan & Nassoura Financial Group, LLC35,807$3.90M2.83%00.0%Unchanged
Gateway Advisory, LLC35,822$3.91M0.75%+32,916+1,132.7%Added
Procyon Private Wealth Partners, LLC35,911$3.92M0.33%−498−1.4%Reduced
Vise Technologies, Inc.36,005$3.93M0.84%+22,884+174.4%Added
Costello Asset Management, INC36,057$3.93M3.26%+2,937+8.9%Added
Capital International Inc36,084$3.93M0.06%+11,354+45.9%Added
Family Legacy, Inc.36,216$3.95M1.51%+60.0%Added
Graypoint LLC36,246$3.95M0.32%+842+2.4%Added
Naples Money Management LLC36,334$3.96M3.71%+36,334New
Essex LLC36,370$3.97M0.99%+3,454+10.5%Added
Thoroughbred Financial Services, LLC36,412$3.97M0.32%+3,125+9.4%Added
Allen Investment Management LLC36,424$3.97M0.05%+60.0%Added
Penobscot Investment Management Company, Inc.36,576$3.99M0.47%+648+1.8%Added
Jackson Square Capital, LLC36,629$3.99M1.28%+79+0.2%Added
B & T Capital Management DBA Alpha Capital Management36,750$4.01M0.83%+718+2.0%Added
White Pine Capital LLC36,786$4.01M1.55%−2,525−6.4%Reduced
Essex Financial Services, Inc.36,817$4.01M0.41%+218+0.6%Added
GQG Partners LLC36,912$4.02M0.01%−668−1.8%Reduced
Oak Harvest Investment Services36,947$4.03M0.80%+3,742+11.3%Added
Fred Alger Management, LLC36,995$4.03M0.02%+2,612+7.6%Added
First National Bank & Trust Co of Newtown37,010$4.03M0.87%−150−0.4%Reduced
NorthRock Partners, LLC36,786$4.04M0.17%+10,708+41.1%Added
Sepio Capital, LP37,085$4.04M0.34%−7,392−16.6%Reduced
GSB Wealth Management, LLC37,240$4.06M1.25%−264−0.7%Reduced
Uncommon Cents Investing LLC37,263$4.06M1.34%−625−1.6%Reduced
Confluence Wealth Services, Inc.37,284$4.06M0.45%+3,108+9.1%Added
Robertson Stephens Wealth Management, LLC37,083$4.07M0.26%+2,959+8.7%Added
Keel Point, LLC37,379$4.08M0.49%−361−1.0%Reduced
Coastline Trust Co37,389$4.08M0.54%−2,577−6.4%Reduced
Merit Financial Group, LLC37,590$4.10M0.12%−11,405−23.3%Reduced
Beech Hill Advisors, Inc.37,617$4.10M1.98%+1,041+2.8%Added
Catalyst Capital Advisors LLC37,700$4.11M0.11%−3,000−7.4%Reduced
B.O.S.S. Retirement Advisors, LLC37,782$4.12M0.80%+13,281+54.2%Added
Herold Advisors, Inc.37,792$4.12M1.14%+854+2.3%Added
Leelyn Smith, LLC37,830$4.12M0.90%+1,200+3.3%Added
Wright Investors Service Inc37,902$4.13M1.16%−6,064−13.8%Reduced
Harbour Capital Advisors, LLC36,135$4.15M1.14%+223+0.6%Added
KMG Fiduciary Partners, LLC38,145$4.16M0.48%−547−1.4%Reduced
DF Dent & Co Inc38,147$4.16M0.06%+3,610+10.5%Added
Wexford Capital LP38,240$4.17M0.89%+8,578+28.9%Added
AMG National Trust Bank38,306$4.18M0.13%+1,269+3.4%Added
Transform Wealth, LLC38,114$4.18M0.41%−1,327−3.4%Reduced
Petredis Investment Advisors LLC38,594$4.21M0.55%−1,190−3.0%Reduced
Conning Inc.38,755$4.23M0.15%+20+0.1%Added
Cobblestone Capital Advisors LLC38,912$4.24M0.28%+94+0.2%Added
Chesapeake Asset Management LLC38,991$4.25M3.79%+259+0.7%Added
RFG Advisory, LLC39,008$4.25M0.17%−1,467−3.6%Reduced
Red Spruce Capital, LLC39,022$4.25M2.18%+621+1.6%Added
SageView Advisory Group, LLC35,032$4.26M0.18%+16,983+94.1%Added
Codex Capital, L.L.C.39,250$4.28M2.50%+1,000+2.6%Added