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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 2021

Institutional positions in Merck & Co., Inc. as of Dec 31, 2021. 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
2,910
+294 vs. Q3 2021
Shares held
1.85B
+9.41M (+0.5%) vs. Q3 2021
Total value
$142.2B
+$3.54B (+2.6%) vs. Q3 2021
New holders
388
1,257 more added
Sold out
94
961 more reduced

42 institutions that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2021: 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 2021: 2,910 institutions
Q1 2021: 2,693 institutionsQ2 2021: 2,684 institutionsQ3 2021: 2,658 institutionsQ4 2021: 2,910 institutionsQ1 2022: 2,962 institutionsQ2 2022: 3,020 institutionsQ3 2022: 2,997 institutionsQ4 2022: 3,244 institutionsQ1 2023: 3,188 institutionsQ2 2023: 3,262 institutionsQ3 2023: 3,222 institutionsQ4 2023: 3,444 institutionsQ1 2024: 3,547 institutionsQ2 2024: 3,558 institutionsQ3 2024: 3,502 institutionsQ4 2024: 3,619 institutionsQ1 2025: 3,460 institutionsQ2 2025: 3,338 institutionsQ3 2025: 3,320 institutionsQ4 2025: 3,675 institutionsQ1 2026: 3,813 institutionsQ2 2026: 3,855 institutions
Value heldQ4 2021: $142.2B
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 20263,813$231.9B
Q4 20253,675$206.6B
Q3 20253,320$159.8B
Q2 20253,338$155.9B
Q1 20253,460$177.7B
Q4 20243,619$196.9B
Q3 20243,502$221.8B
Q2 20243,558$242.3B
Q1 20243,547$256.9B
Q4 20233,444$211.6B
Q3 20233,222$197.7B
Q2 20233,262$222.8B
Q1 20233,188$205.1B
Q4 20223,244$212.2B
Q3 20222,997$162.7B
Q2 20223,020$171.5B
Q1 20222,962$152.1B
Q4 20212,910$142.2B
Q3 20212,658$138.8B
Q2 20212,684$144.3B
Q1 20212,693$143.2B

Institutions, Q4 2021

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2021.

Institutions holding MRK in Q4 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Empire Life Investments Inc.797,123$61.1M3.72%+11,808+1.5%Added
Value Partners Investments Inc.796,019$60.8M4.95%+3520.0%Added
USS Investment Management Ltd788,319$60.4M0.48%00.0%Unchanged
Tekla Capital Management LLC788,122$60.4M1.94%−28,183−3.5%Reduced
Edmond de Rothschild Holding S.A.769,313$59.0M1.27%+8,181+1.1%Added
Compagnie Lombard Odier SCmA762,422$58.4M1.16%−32,538−4.1%Reduced
Gateway Investment Advisers LLC759,804$58.2M0.56%−22,287−2.8%Reduced
Great Lakes Advisors, LLC759,620$58.2M0.89%−24,938−3.2%Reduced
Avalon Investment & Advisory757,831$58.1M1.43%−65,855−8.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)739,251$56.7M0.27%+49,159+7.1%Added
Comerica Bank709,880$56.4M0.42%−25,787−3.5%Reduced
Los Angeles Capital Management LLC728,483$55.8M0.21%+294,056+67.7%Added
M&G Investment Management Ltd723,730$55.7M0.40%−1,138,066−61.1%Reduced
Advisors Asset Management, Inc.727,121$55.7M0.79%+61,521+9.2%Added
Banque Pictet & Cie SA723,918$55.5M0.41%+104,110+16.8%Added
Blair William & Co723,700$55.5M0.17%+42,370+6.2%Added
Rockefeller Capital Management L.P.720,789$55.2M0.26%+15,272+2.2%Added
American International Group, Inc.719,090$55.1M0.28%−16,041−2.2%Reduced
PGGM Investments716,636$54.9M0.27%−470,327−39.6%Reduced
Nicholas Company, Inc.714,127$54.7M0.89%+46,780+7.0%Added
Amalgamated Bank711,610$54.5M0.40%+25,575+3.7%Added
NFJ Investment Group, LLC710,698$54.5M0.99%−29,947−4.0%Reduced
Birch Hill Investment Advisors LLC710,079$54.4M2.69%−6,628−0.9%Reduced
Kahn Brothers Group Inc709,224$54.4M7.47%+3,041+0.4%Added
Manning & Napier Group, LLC698,191$53.5M0.45%−29,736−4.1%Reduced
Arizona State Retirement System693,294$53.1M0.40%−12,801−1.8%Reduced
Healthcare of Ontario Pension Plan Trust Fund692,839$53.1M0.11%+167,090+31.8%Added
RE Advisers Corp680,304$52.1M1.20%−4,900−0.7%Reduced
Prio Wealth Limited Partnership679,219$52.1M1.60%+11,476+1.7%Added
D. E. Shaw & Co., Inc.675,596$51.8M0.06%−2,871,462−81.0%Reduced
Peapack Gladstone Financial Corp674,656$51.7M0.98%+1,293+0.2%Added
Quilter Plc668,250$51.4M1.34%+135,079+25.3%Added
State of Alaska, Department of Revenue665,422$51.0M0.49%−84,756−11.3%Reduced
E. Ohman J:or Asset Management AB654,396$50.2M1.45%−50,932−7.2%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund654,176$50.1M0.44%−33,400−4.9%Reduced
DnB Asset Management AS652,592$50.0M0.29%+1600.0%Added
Letko, Brosseau & Associates Inc651,406$49.9M0.72%−11,855−1.8%Reduced
Cacti Asset Management LLC650,743$49.9M3.94%00.0%Unchanged
Financial Counselors Inc647,406$49.6M1.02%−21,403−3.2%Reduced
Radnor Capital Management, LLC644,158$49.4M12.19%−15,383−2.3%Reduced
Donaldson Capital Management, LLC636,199$48.8M2.14%+30,526+5.0%Added
State of Michigan Retirement System635,917$48.7M0.26%−22,200−3.4%Reduced
Bank Julius Baer & Co. Ltd, Zurich635,248$48.7M0.26%−1,000,433−61.2%Reduced
United Services Automobile Association634,275$48.6M0.82%−10,326−1.6%Reduced
Natixis631,800$48.4M0.17%−1,309,825−67.5%Reduced
D.A. Davidson & Co.605,988$46.5M0.50%+9,573+1.6%Added
CIBC World Markets Inc.604,806$46.4M0.15%+56,816+10.4%Added
Jane Street Group, LLC588,068$45.1M0.09%−1,074,445−64.6%Reduced
Forsta Ap-Fonden584,500$44.8M0.45%+17,300+3.1%Added
AIA Group Ltd584,155$44.8M2.11%+153,633+35.7%Added
Douglas Lane & Associates, LLC583,281$44.7M0.59%+15,249+2.7%Added
Kornitzer Capital Management Inc579,221$44.4M0.66%+1020.0%Added
Nichols & Pratt Advisers LLP576,618$44.2M3.05%−1,349−0.2%Reduced
Vontobel Holding Ltd.567,459$43.8M0.36%−42,882−7.0%Reduced
Capital Group Private Client Services, Inc.565,825$43.4M0.46%−49,745−8.1%Reduced
Bradley Foster & Sargent Inc561,001$43.0M0.89%+5,464+1.0%Added
Lazard Asset Management LLC559,060$42.8M0.05%+44,370+8.6%Added
Edgar Lomax Co558,450$42.8M2.56%−5,445−1.0%Reduced
MetLife Investment Management558,087$42.8M0.35%−13,651−2.4%Reduced
Banco Santander, S.A.553,008$42.4M0.23%+38,259+7.4%Added
Swiss Life Asset Management Ltd541,293$41.5M0.54%−89,486−14.2%Reduced
MUFG Americas Holdings Corp538,002$41.2M0.77%+7,962+1.5%Added
Aristotle Atlantic Partners, LLC527,310$40.4M2.35%−50,900−8.8%Reduced
South Dakota Investment Council521,782$40.0M0.67%+18,250+3.6%Added
Douglass Winthrop Advisors, LLC501,063$38.4M0.86%−847,416−62.8%Reduced
Dearborn Partners LLC497,705$38.1M1.38%+3,076+0.6%Added
Miller Howard Investments Inc491,656$37.7M1.39%−30,774−5.9%Reduced
Pinnacle Associates Ltd491,221$37.6M0.65%+36,355+8.0%Added
Oregon Public Employees Retirement Fund484,209$37.1M0.41%−69,560−12.6%Reduced
Impax Asset Management Group plc481,051$36.9M0.13%+4,944+1.0%Added
Laurion Capital Management LP479,368$36.7M0.63%−2,414,041−83.4%Reduced
Boston Private Wealth LLC477,067$36.6M0.60%−1,068−0.2%Reduced
Sector Gamma AS475,804$36.5M8.57%−337,010−41.5%Reduced
Polaris Wealth Advisory Group, LLC474,641$36.4M2.09%+474,641New
Fukoku Mutual Life Insurance Co467,717$35.8M2.65%−1,326−0.3%Reduced
Trillium Asset Management, LLC462,120$35.4M0.83%+7,383+1.6%Added
Utah Retirement Systems459,710$35.2M0.44%+1,100+0.2%Added
Gabelli Funds LLC458,601$35.1M0.22%−46,089−9.1%Reduced
Creative Planning458,096$35.1M0.06%−21,551−4.5%Reduced
Dai-Ichi Life Insurance Company, Ltd456,844$35.0M0.45%−91,077−16.6%Reduced
Captrust Financial Advisors452,944$35.0M0.24%+152,635+50.8%Added
Cornerstone Investment Partners, LLC454,907$34.9M1.93%−148,214−24.6%Reduced
Employees Retirement System of Texas452,955$34.7M0.39%00.0%Unchanged
Rovida Advisors Inc.451,500$34.6M1.55%00.0%Unchanged
British Columbia Investment Management Corp445,055$34.1M0.19%−23,182−5.0%Reduced
BI Asset Management Fondsmaeglerselskab A/S442,000$33.9M1.25%+10,791+2.5%Added
Cambridge Investment Research Advisors, Inc.439,918$33.7M0.15%+10,846+2.5%Added
Deprince Race & Zollo Inc439,197$33.7M0.86%+40,577+10.2%Added
Pinebridge Investments, L.P.435,816$33.4M0.34%+333,707+326.8%Added
Loring Wolcott & Coolidge Fiduciary Advisors LLP435,559$33.4M0.31%+7,799+1.8%Added
Gulf International Bank (UK) Ltd431,153$33.0M0.47%−73,007−14.5%Reduced
Synovus Financial Corp430,982$33.0M0.33%+35,513+9.0%Added
Fiduciary Trust Co429,986$33.0M0.54%−1,629−0.4%Reduced
Panagora Asset Management Inc429,210$32.9M0.17%+164,536+62.2%Added
Sabal Trust CO427,917$32.8M2.08%+15,326+3.7%Added
Gofen & Glossberg LLC424,786$32.6M0.70%+2,842+0.7%Added
Wesbanco Bank Inc424,556$32.5M1.17%−2,272−0.5%Reduced
Public Sector Pension Investment Board421,488$32.3M0.18%−5,460−1.3%Reduced
ING Groep NV419,205$32.1M0.29%−22,571−5.1%Reduced
Black Creek Investment Management Inc.416,000$31.9M0.85%−3,000−0.7%Reduced