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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
Czech National Bank443,506$45.7M0.73%+143,207+47.7%Added
Swiss Life Asset Management Ltd441,810$45.5M0.70%−105,300−19.2%Reduced
Marathon Asset Mgmt Ltd435,634$45.1M1.40%−23,420−5.1%Reduced
Utah Retirement Systems438,110$45.1M0.64%+2,000+0.5%Added
Compass Capital Management, Inc435,707$44.9M3.52%−19,548−4.3%Reduced
Nicholas Company, Inc.435,617$44.8M0.90%−340−0.1%Reduced
Loring Wolcott & Coolidge Fiduciary Advisors LLP430,529$44.3M0.50%−3,155−0.7%Reduced
Illinois Municipal Retirement Fund426,541$43.9M0.82%−17,930−4.0%Reduced
Sabal Trust CO423,966$43.6M2.92%−5,610−1.3%Reduced
Tiaa Trust, National Association418,509$43.1M0.16%+418,509New
Advisors Asset Management, Inc.417,746$43.0M0.93%−29,978−6.7%Reduced
Achmea Investment Management B.V.416,097$42.8M0.94%+1,804+0.4%Added
Cetera Advisor Networks LLC415,392$42.8M0.27%+9,615+2.4%Added
Intech Investment Management LLC413,782$42.6M0.63%−219,425−34.7%Reduced
Dearborn Partners LLC410,914$42.3M1.66%+992+0.2%Added
Systematic Alpha Investments, LLC410,682$42.3M2.12%00.0%Unchanged
FIL Ltd409,973$42.2M0.05%−25,237−5.8%Reduced
Oppenheimer Asset Management Inc.409,430$42.2M0.65%−17,857−4.2%Reduced
Aquatic Capital Management LLC408,900$42.1M1.76%+408,900New
Ferguson Wellman Capital Management, Inc408,421$42.0M1.03%−2,571−0.6%Reduced
M&G Investment Management Ltd406,676$41.9M0.31%−33,910−7.7%Reduced
Synovus Financial Corp405,364$41.7M0.48%−14,195−3.4%Reduced
Dai-Ichi Life Insurance Company, Ltd403,925$41.6M0.92%−66,590−14.2%Reduced
Fiduciary Trust Co400,724$41.3M0.75%−12,184−3.0%Reduced
AE Wealth Management LLC399,971$41.2M0.25%−3,261−0.8%Reduced
Douglass Winthrop Advisors, LLC399,704$41.1M1.02%−13,673−3.3%Reduced
Boston Common Asset Management, LLC399,574$41.1M0.98%−8,893−2.2%Reduced
New York Life Investment Management LLC399,052$41.1M0.44%−1,503−0.4%Reduced
S&CO Inc396,887$40.9M3.36%−335−0.1%Reduced
Rockland Trust Co396,611$40.8M2.46%+23,808+6.4%Added
Moran Wealth Management, LLC395,415$40.7M1.58%+99,080+33.4%Added
Welch & Forbes LLC393,221$40.5M0.67%−4,653−1.2%Reduced
Bokf, NA390,468$40.1M0.88%−15,292−3.8%Reduced
TownSquare Capital, LLC386,796$39.8M0.73%+2,394+0.6%Added
Xponance, Inc.384,150$39.5M0.54%+5,962+1.6%Added
Pathstone Family Office, LLC374,273$38.7M0.30%+149,093+66.2%Added
Jane Street Group, LLC373,422$38.4M0.06%+18,245+5.1%Added
Cantor Fitzgerald, L. P.370,774$38.2M1.03%−174,545−32.0%Reduced
Cresset Asset Management, LLC367,497$38.1M0.26%+9,268+2.6%Added
Vaughan David Investments LLC368,796$38.0M1.15%+4,192+1.1%Added
Renaissance Technologies LLC367,643$37.8M0.06%−600,509−62.0%Reduced
Steward Partners Investment Advisory, LLC363,692$37.4M0.58%−24,296−6.3%Reduced
Abn Amro Investment Solutions362,428$37.3M0.73%−66,061−15.4%Reduced
Tobam355,347$36.6M2.94%+1,199+0.3%Added
Mutual of America Capital Management LLC354,689$36.5M0.45%−9,914−2.7%Reduced
Meyer Handelman Co354,670$36.5M1.47%+37,000+11.6%Added
Acadian Asset Management LLC352,666$36.3M0.15%−564,803−61.6%Reduced
Cullen/Frost Bankers, Inc.348,662$35.9M0.62%+1,778+0.5%Added
Becker Capital Management Inc344,585$35.7M1.42%−3,562−1.0%Reduced
Private Wealth Partners, LLC346,791$35.7M3.41%−1,500−0.4%Reduced
Wesbanco Bank Inc346,574$35.7M1.56%−1,828−0.5%Reduced
CORDA Investment Management, LLC.344,793$35.5M3.22%−16,253−4.5%Reduced
Private Advisor Group, LLC342,321$35.2M0.32%−25,326−6.9%Reduced
Silvercrest Asset Management Group LLC338,491$34.8M0.26%−2,349−0.7%Reduced
WestEnd Advisors, LLC333,756$34.4M1.03%+26,921+8.8%Added
Pinebridge Investments, L.P.333,596$34.3M0.38%−122,138−26.8%Reduced
La Banque Postale Asset Management SA333,575$34.3M0.76%+47,283+16.5%Added
Poplar Forest Capital LLC333,307$34.3M3.98%+39,301+13.4%Added
Berkshire Asset Management LLC332,769$34.3M2.14%−2,165−0.6%Reduced
Northwestern Mutual Wealth Management Co332,730$34.3M0.04%−21,004−5.9%Reduced
Adams Diversified Equity Fund, Inc.332,700$34.3M1.46%+109,400+49.0%Added
Yousif Capital Management, LLC332,403$34.2M0.44%−11,937−3.5%Reduced
BI Asset Management Fondsmaeglerselskab A/S332,327$34.2M0.80%−407,453−55.1%Reduced
Waters Parkerson & Co., LLC331,080$34.1M2.04%−1,823−0.5%Reduced
CIBC World Markets Corp330,584$34.0M0.33%+33,221+11.2%Added
Huntington National Bank330,110$34.0M0.34%−19,721−5.6%Reduced
Smith Chas P & Associates Pa Cpas329,322$33.9M2.47%−7,131−2.1%Reduced
Artia Global Partners LP329,200$33.9M14.09%00.0%Unchanged
Gabelli Funds LLC328,751$33.8M0.27%−11,920−3.5%Reduced
Oversea-Chinese Banking CORP Ltd328,525$33.8M1.55%+41,123+14.3%Added
Davis R M Inc324,365$33.4M0.84%+4,085+1.3%Added
Glenview Trust Co319,096$32.9M0.91%+7,604+2.4%Added
Klingenstein Fields & Co LP315,376$32.5M1.59%−618−0.2%Reduced
Capital Investment Advisors, LLC315,146$32.4M0.90%+315,146New
AIA Group Ltd314,668$32.4M1.58%+18,098+6.1%Added
Cannell Peter B & Co Inc313,603$32.3M1.10%−4,886−1.5%Reduced
Nissay Asset Management Corp310,628$32.0M0.28%+6,270+2.1%Added
Pinnacle Financial Partners Inc307,781$31.7M0.82%+17,897+6.2%Added
Grandfield & Dodd, LLC307,498$31.7M2.33%−1,577−0.5%Reduced
Raymond James Trust N.A.306,569$31.6M0.94%+9,610+3.2%Added
Daiwa Securities Group Inc.303,521$31.2M0.22%+21,875+7.8%Added
J. Goldman & Co LP303,195$31.2M1.56%+303,195New
Varma Mutual Pension Insurance Co302,926$31.2M0.38%00.0%Unchanged
Cubist Systematic Strategies, LLC302,448$31.1M0.38%+302,448New
Cardinal Capital Management, Inc.301,345$31.0M1.62%+2,373+0.8%Added
Erste Asset Management GmbH296,485$30.9M0.53%+6,139+2.1%Added
1832 Asset Management L.P.299,393$30.8M0.06%−1,705,656−85.1%Reduced
Banco Santander, S.A.298,662$30.7M0.44%−1,758−0.6%Reduced
St. James Investment Company, LLC298,235$30.7M4.68%−16,770−5.3%Reduced
Schechter Investment Advisors, LLC296,197$30.5M2.95%−674−0.2%Reduced
O'Shaughnessy Asset Management, LLC295,206$30.4M0.45%−63,622−17.7%Reduced
Ilmarinen Mutual Pension Insurance Co294,000$30.3M0.40%00.0%Unchanged
Vestcor Inc293,489$30.2M1.11%+10,859+3.8%Added
Howard Capital Management Group, LLC292,312$30.1M2.90%−1,070−0.4%Reduced
Highland Capital Management, LLC292,277$30.1M2.07%+14,041+5.0%Added
Bellevue Group AG291,896$30.1M0.48%−14,798−4.8%Reduced
Transcend Wealth Collective, LLC290,619$29.9M2.92%−1,439−0.5%Reduced
RWC Asset Management LLP289,596$29.8M1.94%+7,740+2.7%Added
Edgar Lomax Co288,444$29.7M2.02%−5,255−1.8%Reduced
Flputnam Investment Management Co288,163$29.7M0.82%+11,853+4.3%Added