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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
TSP Capital Management Group, LLC34,976$3.81M1.32%00.0%Unchanged
Charter Research & Investment Group, Inc.34,902$3.81M3.16%00.0%Unchanged
Walter & Keenan Financial Consulting Co34,895$3.80M1.36%+470+1.4%Added
Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors34,880$3.80M0.75%+1,959+6.0%Added
Pegasus Asset Management, Inc.34,856$3.80M1.63%+150.0%Added
Signature Wealth Management Group34,828$3.80M1.76%+34,828New
St Germain D J Co Inc34,753$3.79M0.20%−1,066−3.0%Reduced
Ziegler Capital Management, LLC34,587$3.77M0.17%−2,742−7.3%Reduced
Lodestone Wealth Management LLC34,537$3.77M2.19%+47+0.1%Added
Carnegie Capital Asset Management, LLC34,536$3.77M0.13%−7,548−17.9%Reduced
Washington Trust Co34,495$3.76M0.15%−810−2.3%Reduced
South State Corp.34,482$3.76M0.32%−1,304−3.6%Reduced
Cornercap Investment Counsel Inc34,459$3.76M0.61%+428+1.3%Added
River Wealth Advisors LLC34,422$3.75M0.60%+1,051+3.1%Added
Keene & Associates, Inc.34,389$3.75M3.11%−358−1.0%Reduced
Stonebrook Private Inc.34,373$3.75M1.25%+34,373New
3Chopt Investment Partners, LLC34,071$3.74M1.38%+586+1.8%Added
Nelson Capital Management, LLC34,283$3.74M0.84%−825−2.3%Reduced
Tealwood Asset Management Inc34,280$3.74M1.78%−206−0.6%Reduced
Comprehensive Financial Consultants Institutional, Inc.34,167$3.72M1.73%+1,223+3.7%Added
Trivant Custom Portfolio Group, LLC34,148$3.72M2.48%−91−0.3%Reduced
First Financial Bank - Trust Division34,035$3.71M0.38%−783−2.2%Reduced
Supplemental Annuity Collective Trust of NJ34,000$3.71M1.29%00.0%Unchanged
Girard Partners Ltd.33,971$3.70M0.38%−829−2.4%Reduced
A. D. Beadell Investment Counsel, Inc.33,702$3.67M3.50%−238−0.7%Reduced
Schnieders Capital Management LLC33,691$3.67M0.81%−4,394−11.5%Reduced
Pettyjohn, Wood & White, Inc33,691$3.67M0.80%−197−0.6%Reduced
Meeder Advisory Services, Inc.33,663$3.67M0.42%−1,515−4.3%Reduced
Court Place Advisors, LLC33,631$3.67M1.21%−298−0.9%Reduced
Arvest Trust Co N A33,615$3.66M0.22%−2,587−7.1%Reduced
Fidelis Capital Partners, LLC33,387$3.64M0.81%+12,534+60.1%Added
Iowa State Bank33,096$3.61M0.87%+980+3.1%Added
Warren Averett Asset Management, LLC33,040$3.60M0.13%−21,889−39.8%Reduced
Pettee Investors, Inc.32,958$3.59M1.59%00.0%Unchanged
McGinn Investment Management, Inc.32,940$3.59M2.61%−873−2.6%Reduced
Quadrant Capital Group LLC32,926$3.59M0.31%−427−1.3%Reduced
Marathon Capital Management32,704$3.57M0.90%−375−1.1%Reduced
PKO Investment Management Joint-Stock Co32,676$3.56M0.45%+2,300+7.6%Added
Capital Group Private Client Services, Inc.32,659$3.56M0.04%−10,020−23.5%Reduced
Allegheny Financial Group LTD32,576$3.55M1.14%+774+2.4%Added
McIntyre Freedman & Flynn Investment Advisers Inc32,564$3.55M2.84%+10.0%Added
Alpha Omega Wealth Management LLC32,432$3.54M0.59%+100.0%Added
Richard P Slaughter Associates Inc32,313$3.52M0.88%+18,781+138.8%Added
Secure Asset Management, LLC32,292$3.52M0.95%−453−1.4%Reduced
Quadcap Wealth Management, LLC32,080$3.50M0.90%+32,080New
Moody National Bank Trust Division32,040$3.49M0.27%−30,797−49.0%Reduced
GM Advisory Group, Inc.31,963$3.48M0.26%+11,342+55.0%Added
IHT Wealth Management, LLC31,954$3.48M0.16%+836+2.7%Added
Intrust Bank NA31,947$3.48M0.40%−2,975−8.5%Reduced
Means Investment Co., Inc.31,764$3.46M0.50%−252−0.8%Reduced
Nippon Life Global Investors Americas, Inc.31,740$3.46M0.19%−4,060−11.3%Reduced
Marietta Investment Partners LLC31,725$3.46M0.86%+715+2.3%Added
Kentucky Farm Bureau Mutual Insurance Co31,718$3.46M0.89%00.0%Unchanged
Sterling Investment Advisors, Ltd.31,652$3.45M1.07%+110.0%Added
Stokes Capital Advisors, LLC31,636$3.45M1.09%+364+1.2%Added
Essex Savings Bank31,629$3.45M1.00%+2,132+7.2%Added
Adell Harriman & Carpenter Inc31,611$3.45M0.32%+5,352+20.4%Added
Main Street Financial Solutions, LLC31,580$3.44M0.44%−1,247−3.8%Reduced
Strengthening Families & Communities, LLC31,503$3.43M2.38%+1,717+5.8%Added
Madison Asset Management, LLC31,486$3.43M0.05%−314−1.0%Reduced
Atlantic Trust, LLC31,479$3.43M0.94%−1,160−3.6%Reduced
Abbot Financial Management, Inc.31,376$3.42M2.06%+1,077+3.6%Added
Romano Brothers and Company31,372$3.42M0.51%−2,129−6.4%Reduced
Blue Fin Capital, Inc.31,288$3.41M0.88%−167−0.5%Reduced
Prestige Wealth Management Group LLC31,024$3.41M0.77%−760−2.4%Reduced
Red Cedar Investment Management, LLC31,230$3.40M0.49%00.0%Unchanged
Brighton Jones LLC31,196$3.40M0.14%+2,473+8.6%Added
Wilkinson Global Asset Management LLC31,125$3.39M0.23%−248−0.8%Reduced
Financial Advisory Service, Inc.31,109$3.39M0.32%+2,839+10.0%Added
Broadwater Capital Management LLC31,032$3.38M2.65%+31,032New
EagleClaw Capital Managment, LLC31,018$3.38M0.70%−45−0.1%Reduced
American National Bank30,887$3.37M0.53%+8,152+35.9%Added
Fairhaven Wealth Management, LLC30,885$3.37M1.23%+545+1.8%Added
Inscription Capital, LLC30,839$3.36M0.92%+1,922+6.6%Added
Delta Financial Group, Inc.30,795$3.36M1.06%−358−1.1%Reduced
Gilliland Jeter Wealth Management LLC30,727$3.35M1.39%+30,727New
Callahan Advisors, LLC30,581$3.33M0.39%+80.0%Added
Quantbot Technologies LP30,577$3.33M0.19%+19,750+182.4%Added
Sumitomo Life Insurance Co30,576$3.33M0.10%−1,588−4.9%Reduced
Financial Partners Group, LLC30,538$3.33M1.51%−1,242−3.9%Reduced
Aries Wealth Management30,471$3.32M1.18%−1,076−3.4%Reduced
BFSG, LLC30,458$3.32M0.48%−580−1.9%Reduced
StoneX Group Inc.30,258$3.32M0.33%+3,683+13.9%Added
Wedmont Private Capital28,240$3.31M0.27%+2,451+9.5%Added
Addison Capital Co30,367$3.31M2.05%+24,571+423.9%Added
Harbor Investment Advisory, LLC30,335$3.31M0.38%+1,393+4.8%Added
Silvant Capital Management LLC30,074$3.30M0.18%−64−0.2%Reduced
Mogy Joel R Investment Counsel Inc30,223$3.29M0.25%−12,047−28.5%Reduced
Vaughan Nelson Investment Management, L.P.30,215$3.29M0.03%−3,360−10.0%Reduced
Money Concepts Capital Corp30,195$3.29M0.31%−333−1.1%Reduced
Benjamin Edwards Inc30,152$3.29M0.72%−86−0.3%Reduced
Brevan Howard Capital Management LP30,149$3.29M0.33%+30,149New
Eisler Capital (UK) Ltd.30,122$3.28M0.30%+30,122New
SFMG, LLC30,052$3.28M0.30%+45+0.1%Added
Independent Solutions Wealth Management, LLC30,014$3.27M0.84%+1,593+5.6%Added
Waldron Private Wealth LLC29,800$3.27M0.16%−8,676−22.5%Reduced
Independent Financial Group, LLC30,008$3.27M0.17%−1,642−5.2%Reduced
Nicollet Investment Management, Inc.29,924$3.26M1.33%−959−3.1%Reduced
Welch Group, LLC29,810$3.25M0.18%−270−0.9%Reduced
Desjardins Global Asset Management Inc.29,786$3.25M0.35%−5,649−15.9%Reduced