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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 2022

Institutional positions in Merck & Co., Inc. as of Dec 31, 2022. 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
3,243
+304 vs. Q3 2022
Shares held
1.91B
+33.5M (+1.8%) vs. Q3 2022
Total value
$212.2B
+$50.0B (+30.9%) vs. Q3 2022
New holders
395
1,191 more added
Sold out
91
1,329 more reduced

57 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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 2022: 3,244 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 2022: $212.2B
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 2022

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2022.

Institutions holding MRK in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Baird Financial Group, Inc.2,476,801$274.8M0.72%−569,981−18.7%Reduced
Mitsubishi UFJ Trust & Banking Corp2,450,001$271.8M0.71%+52,290+2.2%Added
KBC Group NV2,392,134$265.4M1.29%+439,625+22.5%Added
Thrivent Financial for Lutherans2,323,470$257.8M0.67%−211,381−8.3%Reduced
Toronto Dominion Bank2,320,475$257.3M0.39%+862,289+59.1%Added
LPL Financial LLC2,287,323$253.8M0.22%+64,278+2.9%Added
Public Employees Retirement Association of Colorado2,260,762$250.8M1.37%+228,112+11.2%Added
US Bancorp2,226,943$247.1M0.44%+438,307+24.5%Added
American Century Companies Inc2,173,191$241.1M0.20%−520,615−19.3%Reduced
Cullen Capital Management LLC2,096,520$232.7M2.99%−776,001−27.0%Reduced
AXA S.A.2,183,259$228.8M0.83%−261,888−10.7%Reduced
Capital Research Global Investors2,037,894$226.1M0.07%+9770.0%Added
Beutel, Goodman & Co Ltd.2,004,437$222.4M1.35%−1,326,189−39.8%Reduced
Skandinaviska Enskilda Banken AB (publ)1,969,391$218.5M1.64%+199,608+11.3%Added
Parnassus Investments1,931,707$214.3M0.53%−374,841−16.3%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.1,921,778$213.6M0.58%+208,995+12.2%Added
Janney Montgomery Scott LLC1,876,920$208.2M0.81%−4,042−0.2%Reduced
Antipodes Partners Ltd1,855,439$205.9M7.38%−409,457−18.1%Reduced
SRB Corp1,848,407$205.1M13.01%−3990.0%Reduced
STRS Ohio1,840,180$204.2M0.92%−206,062−10.1%Reduced
Bank Julius Baer & Co. Ltd, Zurich1,771,452$196.5M1.34%+33,694+1.9%Added
CI Private Wealth, LLC1,740,694$193.2M0.70%+1,740,694New
Eagle Asset Management Inc1,733,478$192.7M1.18%+9,138+0.5%Added
Retirement Systems of Alabama1,685,344$187.0M0.82%−29,183−1.7%Reduced
Renaissance Technologies LLC1,680,102$186.4M0.26%−2,883,132−63.2%Reduced
Regions Financial Corp1,651,664$183.3M1.68%−20,456−1.2%Reduced
Lazard Freres Gestion S.A.S.1,656,687$180.6M6.54%−36,357−2.1%Reduced
King Luther Capital Management Corp1,626,847$180.5M0.99%+65,074+4.2%Added
Railway Pension Investments Ltd1,618,450$179.6M1.80%+84,700+5.5%Added
Storebrand Asset Management AS1,617,096$179.4M0.99%+23,484+1.5%Added
Boston Partners1,613,503$179.0M0.24%−101,192−5.9%Reduced
Lazard Asset Management LLC1,578,928$175.2M0.24%+2,483+0.2%Added
Thornburg Investment Management Inc1,560,094$173.1M2.93%−30,286−1.9%Reduced
Public Employees Retirement System of Ohio1,556,724$172.7M0.75%+10,050+0.6%Added
Brandywine Global Investment Management, LLC1,552,922$172.3M1.35%−45,387−2.8%Reduced
Artemis Investment Management LLP1,540,552$171.7M1.95%+992,772+181.2%Added
Aviva PLC1,540,293$170.9M0.84%+203,155+15.2%Added
Chevy Chase Trust Holdings, Inc.1,521,081$168.8M0.72%−88,211−5.5%Reduced
Commonwealth Equity Services, LLC1,519,987$168.6M0.41%−34,923−2.2%Reduced
Assenagon Asset Management S.A.1,498,809$166.3M0.68%−1,148,321−43.4%Reduced
BNP Paribas Arbitrage, SA1,496,115$166.0M0.42%−133,488−8.2%Reduced
State of New Jersey Common Pension Fund D1,490,439$165.4M0.62%+8,186+0.6%Added
State of Wisconsin Investment Board1,485,487$164.8M0.53%+49,567+3.5%Added
AMF Pensionsforsakring AB1,453,462$161.4M1.85%+27,523+1.9%Added
National Bank of Canada1,453,717$161.2M0.44%+380,784+35.5%Added
Voya Investment Management LLC1,452,596$161.2M0.19%−91,209−5.9%Reduced
Bessemer Group Inc1,450,571$160.9M0.39%+16,450+1.1%Added
Mariner, LLC1,446,766$160.5M0.52%+149,941+11.6%Added
Millennium Management LLC1,437,922$159.5M0.18%+94,582+7.0%Added
Pictet Asset Management SA1,805,006$159.5M0.23%+46,669+2.7%Added
Asset Management One Co.,Ltd.1,432,884$158.8M0.77%−21,104−1.5%Reduced
Zurich Insurance Group Ltd1,412,524$156.7M2.24%+130,745+10.2%Added
Advisor Group Holdings, Inc.1,393,531$154.7M0.31%+65,257+4.9%Added
Jennison Associates LLC1,381,554$153.3M0.16%+515,532+59.5%Added
Epoch Investment Partners, Inc.1,379,585$153.1M0.91%−536,467−28.0%Reduced
SEI Investments Co1,375,128$152.6M0.34%−136,468−9.0%Reduced
D. E. Shaw & Co., Inc.1,337,265$148.4M0.25%+1,233,272+1,185.9%Added
Natixis Advisors, L.P.1,276,487$141.6M0.54%+63,302+5.2%Added
Keybank National Association1,273,605$141.3M0.69%−4,102−0.3%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,267,694$140.7M0.50%−237,343−15.8%Reduced
Kames Capital plc1,249,879$138.7M2.50%00.0%Unchanged
State of Tennessee, Treasury Department1,238,934$137.5M0.64%−45,352−3.5%Reduced
Penserra Capital Management LLC1,228,212$136.3M2.99%+238,981+24.2%Added
Treasurer of the State of North Carolina1,224,614$135.9M0.83%+33,964+2.9%Added
Mn Services Vermogensbeheer B.V.1,214,399$134.7M1.51%−189,700−13.5%Reduced
Virginia Retirement Systems Et Al1,190,694$132.1M1.38%+3,500+0.3%Added
Acadian Asset Management LLC1,179,216$130.8M0.64%+556,927+89.5%Added
Handelsbanken Fonder AB1,148,765$127.5M0.80%+111,078+10.7%Added
Zurcher Kantonalbank (Zurich Cantonalbank)1,148,094$127.4M0.68%+52,156+4.8%Added
Public Sector Pension Investment Board1,136,390$126.1M1.01%−160,159−12.4%Reduced
Rockefeller Capital Management L.P.1,113,854$123.6M0.62%+25,318+2.3%Added
Zacks Investment Management1,113,460$123.5M1.72%+49,763+4.7%Added
Nomura Asset Management Co Ltd1,108,361$123.0M0.71%+26,491+2.4%Added
Susquehanna International Group, LLP1,086,494$120.5M0.24%+699,435+180.7%Added
Crawford Investment Counsel Inc1,053,006$116.8M2.51%−140,303−11.8%Reduced
Mirae Asset Global Investments Co., Ltd.1,050,816$116.5M0.30%+20,400+2.0%Added
Marshall Wace, LLP1,033,806$114.7M0.30%+372,519+56.3%Added
Clark Capital Management Group, Inc.1,026,106$113.8M1.05%+49,059+5.0%Added
Cerity Partners LLC996,963$112.2M0.73%+501,174+101.1%Added
Alphinity Investment Management Pty Ltd1,007,308$111.8M3.28%−742,122−42.4%Reduced
CIBC World Markets Inc.984,252$109.2M0.43%+36,336+3.8%Added
Haverford Trust Co980,571$108.8M1.34%−3,851−0.4%Reduced
Natixis970,204$107.6M0.63%−2,216,448−69.6%Reduced
Capital International Investors965,015$107.1M0.03%+3,725+0.4%Added
Bridgewater Associates, LP933,765$103.6M0.57%−531,637−36.3%Reduced
Commerce Bank931,167$103.3M0.84%+3,824+0.4%Added
Guggenheim Capital LLC931,079$103.3M0.91%−69,545−7.0%Reduced
Atalanta Sosnoff Capital, LLC930,307$103.2M3.18%−120,106−11.4%Reduced
Allspring Global Investments Holdings, LLC928,607$103.0M0.18%−408,853−30.6%Reduced
Fifth Third Bancorp904,596$100.4M0.48%+46,844+5.5%Added
Glenmede Trust Co NA903,552$100.2M0.59%−38,783−4.1%Reduced
Captrust Financial Advisors895,363$99.3M0.50%+40,291+4.7%Added
Royal London Asset Management Ltd894,572$99.2M0.44%+21,693+2.5%Added
Edgar Lomax Co878,375$97.5M5.91%−5,090−0.6%Reduced
Brandes Investment Partners, LP877,678$97.4M2.73%−317,550−26.6%Reduced
Tocqueville Asset Management L.P.867,362$96.2M1.83%−8,112−0.9%Reduced
ING Groep NV865,510$96.0M0.96%+532,541+159.9%Added
Quilter Plc862,770$95.7M3.15%−17,897−2.0%Reduced
Teacher Retirement System of Texas833,768$92.5M0.68%−225,353−21.3%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund832,930$92.4M1.32%−55,219−6.2%Reduced