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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
Trillium Asset Management, LLC465,551$50.8M1.38%−12,346−2.6%Reduced
State of Alaska, Department of Revenue465,107$50.7M0.60%−15,095−3.1%Reduced
Birch Hill Investment Advisors LLC464,396$50.6M2.69%−2270.0%Reduced
Ferguson Wellman Capital Management, Inc463,105$50.5M1.13%+54,684+13.4%Added
Heritage Wealth Advisors458,352$50.0M2.48%−29,037−6.0%Reduced
Fukoku Mutual Life Insurance Co454,465$49.5M4.11%−381−0.1%Reduced
Cambridge Investment Research Advisors, Inc.451,302$49.2M0.21%−7,497−1.6%Reduced
Compass Capital Management, Inc448,107$48.9M3.46%+12,400+2.8%Added
Whittier Trust Co447,595$48.8M0.79%+3,852+0.9%Added
B. Metzler seel. Sohn & Co. AG446,902$48.7M0.62%−12,084−2.6%Reduced
Czech National Bank443,893$48.4M0.69%+387+0.1%Added
Bradley Foster & Sargent Inc441,962$48.2M0.94%−14,802−3.2%Reduced
Utah Retirement Systems440,810$48.1M0.61%+2,700+0.6%Added
Nicholas Company, Inc.435,582$47.5M0.84%−350.0%Reduced
Intech Investment Management LLC424,899$46.3M0.67%+11,117+2.7%Added
Marathon Asset Mgmt Ltd421,993$46.3M1.30%−13,641−3.1%Reduced
Degroof Petercam Asset Management416,100$45.4M0.60%+416,100New
Xponance, Inc.412,556$45.0M0.54%+28,406+7.4%Added
Systematic Alpha Investments, LLC410,682$44.8M2.01%00.0%Unchanged
Rockland Trust Co408,479$44.5M2.44%+11,868+3.0%Added
Moran Wealth Management, LLC407,924$44.5M1.58%+12,509+3.2%Added
Sabal Trust CO407,658$44.4M2.73%−16,308−3.8%Reduced
Tiaa Trust, National Association407,617$44.4M0.15%−10,892−2.6%Reduced
Fiduciary Trust Co406,758$44.3M0.74%+6,034+1.5%Added
Douglass Winthrop Advisors, LLC404,816$44.1M0.99%+5,112+1.3%Added
Oppenheimer Asset Management Inc.404,752$44.1M0.61%−4,678−1.1%Reduced
Dearborn Partners LLC402,368$43.9M1.60%−8,546−2.1%Reduced
New York Life Investment Management LLC401,263$43.7M0.45%+2,211+0.6%Added
Perpetual Ltd400,804$43.7M0.45%−144,340−26.5%Reduced
M&G Investment Management Ltd400,616$43.7M0.26%−6,060−1.5%Reduced
Vestal Point Capital, LP400,000$43.6M4.62%+400,000New
Cetera Advisor Networks LLC399,803$43.6M0.24%−15,589−3.8%Reduced
S&CO Inc399,532$43.6M3.34%+2,645+0.7%Added
Miller Howard Investments Inc397,478$43.3M1.51%−283,388−41.6%Reduced
Unigestion Holding SA389,667$42.5M2.34%−95,444−19.7%Reduced
Bokf, NA382,176$41.7M0.82%−8,292−2.1%Reduced
Welch & Forbes LLC380,846$41.5M0.63%−12,375−3.1%Reduced
Los Angeles Capital Management LLC376,302$41.0M0.15%+92,146+32.4%Added
Azimuth Capital Investment Management LLC375,012$40.9M1.84%+93,941+33.4%Added
Susquehanna Portfolio Strategies, LLC374,082$40.8M0.73%+374,082New
Vaughan David Investments LLC372,326$40.6M1.11%+3,530+1.0%Added
Tower Research Capital LLC (TRC)372,264$40.6M0.50%+253,535+213.5%Added
Cresset Asset Management, LLC366,591$40.2M0.24%−906−0.2%Reduced
Achmea Investment Management B.V.368,099$40.1M0.83%−47,998−11.5%Reduced
Steward Partners Investment Advisory, LLC367,518$40.1M0.54%+3,826+1.1%Added
TownSquare Capital, LLC362,804$39.6M0.68%−23,992−6.2%Reduced
AIA Group Ltd360,465$39.3M1.61%+45,797+14.6%Added
Private Wealth Partners, LLC348,020$37.9M3.21%+1,229+0.4%Added
Oversea-Chinese Banking CORP Ltd346,858$37.8M1.34%+18,333+5.6%Added
Becker Capital Management Inc336,553$37.0M1.33%−8,032−2.3%Reduced
Mutual of America Capital Management LLC338,689$36.9M0.43%−16,000−4.5%Reduced
Silvercrest Asset Management Group LLC337,818$36.8M0.26%−673−0.2%Reduced
Advisors Asset Management, Inc.336,879$36.7M0.75%−80,867−19.4%Reduced
Benjamin F. Edwards & Company, Inc.334,166$36.4M0.73%+261,901+362.4%Added
Smith Chas P & Associates Pa Cpas333,743$36.4M2.40%+4,421+1.3%Added
Gunn & Co Investment Management, Inc.333,743$36.4M2.40%+307,780+1,185.5%Added
FIL Ltd333,236$36.3M0.04%−76,737−18.7%Reduced
Adams Diversified Equity Fund, Inc.332,700$36.3M1.43%00.0%Unchanged
Cullen/Frost Bankers, Inc.332,150$36.2M0.57%−16,512−4.7%Reduced
Berkshire Asset Management LLC331,126$36.1M2.06%−1,643−0.5%Reduced
Banco Santander, S.A.329,676$35.9M0.42%+31,014+10.4%Added
Artia Global Partners LP329,200$35.9M14.20%00.0%Unchanged
CORDA Investment Management, LLC.327,845$35.7M3.00%−16,948−4.9%Reduced
Boston Common Asset Management, LLC326,548$35.6M0.81%−73,026−18.3%Reduced
WestEnd Advisors, LLC325,533$35.5M0.97%−8,223−2.5%Reduced
Private Advisor Group, LLC322,977$35.2M0.27%−19,344−5.7%Reduced
E. Ohman J:or Asset Management AB322,894$35.2M1.29%−186,213−36.6%Reduced
Glenview Trust Co321,823$35.1M0.86%+2,727+0.9%Added
Huntington National Bank321,678$35.1M0.32%−8,432−2.6%Reduced
Waters Parkerson & Co., LLC321,158$35.0M1.94%−9,922−3.0%Reduced
Daiwa Securities Group Inc.320,989$35.0M0.22%+17,468+5.8%Added
Davis R M Inc319,730$34.9M0.80%−4,635−1.4%Reduced
Raymond James Trust N.A.318,936$34.8M0.92%+12,367+4.0%Added
Meyer Handelman Co317,825$34.6M1.35%−36,845−10.4%Reduced
Yousif Capital Management, LLC317,466$34.6M0.41%−14,937−4.5%Reduced
Cannell Peter B & Co Inc315,918$34.4M1.09%+2,315+0.7%Added
Capital Investment Advisors, LLC315,419$34.4M0.86%+273+0.1%Added
Twin Tree Management, LP315,121$34.4M0.62%+296,337+1,577.6%Added
Klingenstein Fields & Co LP312,919$34.1M1.52%−2,457−0.8%Reduced
Gabelli Funds LLC312,276$34.0M0.26%−16,475−5.0%Reduced
Tobam307,928$33.6M2.94%−47,419−13.3%Reduced
Grandfield & Dodd, LLC307,048$33.5M2.31%−450−0.1%Reduced
Abn Amro Investment Solutions306,343$33.4M0.59%−56,085−15.5%Reduced
Flputnam Investment Management Co305,093$33.3M0.78%+16,930+5.9%Added
Synovus Financial Corp304,525$33.2M0.47%−100,839−24.9%Reduced
Nissay Asset Management Corp304,034$33.1M0.27%−6,594−2.1%Reduced
Northwestern Mutual Wealth Management Co301,924$32.9M0.04%−30,806−9.3%Reduced
Meitav Dash Investments Ltd298,731$32.5M0.48%+289,971+3,310.2%Added
Deprince Race & Zollo Inc295,660$32.2M0.73%+26,366+9.8%Added
GW&K Investment Management, LLC295,522$32.2M0.30%+45,877+18.4%Added
Schechter Investment Advisors, LLC295,102$32.2M2.79%−1,095−0.4%Reduced
Adviser Investments LLC293,682$32.0M0.46%+159,612+119.1%Added
Todd Asset Management LLC293,432$32.0M0.71%−203,119−40.9%Reduced
Cardinal Capital Management, Inc.292,406$31.9M1.51%−8,939−3.0%Reduced
Vestcor Inc292,398$31.9M1.08%−1,091−0.4%Reduced
British Columbia Investment Management Corp292,098$31.8M0.26%+61,191+26.5%Added
Transcend Wealth Collective, LLC291,094$31.7M2.82%+475+0.2%Added
Howard Capital Management Group, LLC290,607$31.7M2.75%−1,705−0.6%Reduced
Bellevue Group AG290,206$31.6M0.48%−1,690−0.6%Reduced
Highland Capital Management, LLC290,036$31.6M1.96%−2,241−0.8%Reduced