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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 2024

Institutional positions in Merck & Co., Inc. as of Dec 31, 2024. 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
3,619
+183 vs. Q3 2024
Shares held
1.98B
+39.5M (+2.0%) vs. Q3 2024
Total value
$196.9B
−$22.8B (−10.4%) vs. Q3 2024
New holders
390
1,324 more added
Sold out
207
1,581 more reduced

66 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2024: 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 2024: 3,619 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 2024: $196.9B
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 2024

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2024.

Institutions holding MRK in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
TD Asset Management Inc2,384,189$237.2M0.21%−122,358−4.9%Reduced
Healthcare of Ontario Pension Plan Trust Fund2,365,200$235.3M0.50%+801,200+51.2%Added
Voloridge Investment Management, LLC2,320,806$230.9M0.82%+367,524+18.8%Added
Brown Advisory Inc2,320,658$230.9M0.29%−535,988−18.8%Reduced
Public Employees Retirement Association of Colorado2,293,388$228.1M0.91%−64,589−2.7%Reduced
New York State Teachers Retirement System2,265,584$225.4M0.47%−98,617−4.2%Reduced
Candriam Luxembourg S.C.A.2,217,423$220.6M1.27%−248,291−10.1%Reduced
Aviva PLC2,200,518$218.9M0.57%−73,633−3.2%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH2,191,594$218.0M0.43%+2,191,594New
London Co of Virginia2,167,012$215.6M1.18%−161,330−6.9%Reduced
M&T Bank Corp2,147,813$213.7M0.72%−56,741−2.6%Reduced
Capital Wealth Planning, LLC2,060,661$205.0M1.90%−1,023,662−33.2%Reduced
Korea Investment CORP1,995,350$198.5M0.47%−19,801−1.0%Reduced
Alecta Pensionsforsakring, Omsesidigt1,978,900$196.9M1.04%+1,978,900New
Cullen Capital Management LLC1,965,710$195.5M2.28%−85,946−4.2%Reduced
Bank of Nova Scotia1,958,802$194.9M0.34%+744,509+61.3%Added
Baird Financial Group, Inc.1,938,701$192.9M0.37%−165,748−7.9%Reduced
Two Sigma Investments, LP1,928,829$191.9M0.44%−8,104−0.4%Reduced
US Bancorp1,912,197$190.2M0.25%−53,580−2.7%Reduced
Janney Montgomery Scott LLC1,902,509$189.3M0.52%+35,525+1.9%Added
Danske Bank A/S1,886,346$187.7M0.56%+72,001+4.0%Added
Thornburg Investment Management Inc1,876,384$186.7M2.47%00.0%Unchanged
Cerity Partners LLC1,774,281$184.0M0.40%−113,531−6.0%Reduced
Antipodes Partners Ltd1,848,631$183.9M6.39%+272,815+17.3%Added
American Century Companies Inc1,840,781$183.1M0.11%+192,129+11.7%Added
Skandinaviska Enskilda Banken AB (publ)1,861,504$183.1M0.83%−433,865−18.9%Reduced
Squarepoint Ops LLC1,839,093$183.0M0.47%+321,063+21.1%Added
Storebrand Asset Management AS1,799,091$179.0M0.54%+77,632+4.5%Added
Kempen Capital Management N.V.1,795,596$178.6M1.78%−4,954−0.3%Reduced
Mariner, LLC1,795,029$178.5M0.30%+121,709+7.3%Added
Mitsubishi UFJ Trust & Banking Corp1,777,711$176.8M0.42%+223,517+14.4%Added
Mackenzie Financial Corp1,776,853$176.8M0.24%−512,124−22.4%Reduced
Pictet Asset Management Holding SA1,756,233$174.7M0.19%+240,758+15.9%Added
Ci Investments Inc.1,748,235$173.9M0.66%+448,204+34.5%Added
King Luther Capital Management Corp1,717,734$170.9M0.74%+28,830+1.7%Added
Worldquant Millennium Advisors LLC1,715,221$170.6M1.10%+855,324+99.5%Added
SEI Investments Co1,664,094$165.5M0.21%−109,664−6.2%Reduced
Balyasny Asset Management LLC1,656,127$164.8M0.38%+708,452+74.8%Added
Natixis Advisors, L.P.1,639,214$163.1M0.30%+407,368+33.1%Added
Allianz Asset Management GmbH1,634,488$162.6M0.24%−155,761−8.7%Reduced
Bessemer Group Inc1,628,133$162.0M0.26%−272,785−14.4%Reduced
Lazard Freres Gestion S.A.S.1,582,302$157.4M3.15%+112,828+7.7%Added
Wealth Enhancement Advisory Services, LLC1,560,491$155.2M0.30%+231,927+17.5%Added
Thrivent Financial for Lutherans1,541,339$153.4M0.30%−296,015−16.1%Reduced
Brandes Investment Partners, LP1,532,715$152.5M1.70%+154,510+11.2%Added
Commonwealth Equity Services, LLC1,505,318$149.7M0.22%−5,461−0.4%Reduced
State of Wisconsin Investment Board1,499,921$149.2M0.39%−90,291−5.7%Reduced
Adage Capital Partners GP, L.L.C.1,495,561$148.8M0.26%+2,700+0.2%Added
Nomura Asset Management Co Ltd1,491,939$148.4M0.45%−72,337−4.6%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,481,009$147.3M0.37%+66,220+4.7%Added
Susquehanna International Group, LLP1,480,121$147.2M0.22%+1,021,564+222.8%Added
Allspring Global Investments Holdings, LLC1,477,678$146.5M0.23%+189,540+14.7%Added
Compagnie Lombard Odier SCmA1,453,491$144.6M2.13%−21,053−1.4%Reduced
Bridgewater Associates, LP1,439,430$143.2M0.66%−114,840−7.4%Reduced
Regions Financial Corp1,432,820$142.5M1.05%+14,994+1.1%Added
Toronto Dominion Bank1,400,721$139.3M0.27%−225,468−13.9%Reduced
Neuberger Berman Group LLC1,386,427$137.9M0.11%−145,832−9.5%Reduced
ING Groep NV1,384,512$137.7M0.93%+478,464+52.8%Added
Renaissance Technologies LLC1,381,636$137.4M0.20%+295,758+27.2%Added
Jacobs Levy Equity Management, Inc1,377,437$137.0M0.48%−549,238−28.5%Reduced
Chevy Chase Trust Holdings, Inc.1,370,426$136.3M0.42%−35,986−2.6%Reduced
Los Angeles Capital Management LLC1,369,590$136.2M0.55%−1,335,530−49.4%Reduced
Kovitz Investment Group Partners, LLC1,340,134$133.3M0.65%+1,119,080+506.2%Added
AXA S.A.1,310,947$130.4M0.40%+76,424+6.2%Added
Retirement Systems of Alabama1,300,726$129.4M0.48%−2,609−0.2%Reduced
SRB Corp1,297,433$129.1M7.40%00.0%Unchanged
Asset Management One Co.,Ltd.1,270,065$126.6M0.44%+6,779+0.5%Added
Rathbone Brothers plc1,262,015$125.5M0.61%+53,074+4.4%Added
Royal London Asset Management Ltd1,261,044$125.4M0.31%+4,002+0.3%Added
Man Group plc1,260,906$125.4M0.38%−565,374−31.0%Reduced
Treasurer of the State of North Carolina1,225,418$121.9M0.48%+18,811+1.6%Added
STRS Ohio1,222,045$121.6M0.48%−44,460−3.5%Reduced
Teacher Retirement System of Texas1,218,805$121.2M0.44%+280,776+29.9%Added
Banque Pictet & Cie SA1,201,910$119.6M1.17%−31,915−2.6%Reduced
Bank Julius Baer & Co. Ltd, Zurich1,110,372$117.3M0.36%+111,651+11.2%Added
Rockefeller Capital Management L.P.1,166,319$116.2M0.30%−55,283−4.5%Reduced
KLP Kapitalforvaltning AS1,147,170$114.9M0.54%+1,147,170New
Commerce Bank1,150,944$114.5M0.71%−202,683−15.0%Reduced
Mondrian Investment Partners LTD1,154,467$114.1M1.89%+1,154,467New
Great Lakes Advisors, LLC1,141,311$113.5M0.97%+7,549+0.7%Added
Colony Group, LLC1,130,310$112.5M0.29%+119,867+11.9%Added
Quilter Plc1,117,864$111.2M2.20%+127,926+12.9%Added
Public Employees Retirement System of Ohio1,112,341$110.7M0.38%−81,911−6.9%Reduced
Captrust Financial Advisors1,101,004$109.5M0.31%−1,536−0.1%Reduced
Comerica Bank1,064,968$105.9M0.43%−39,949−3.6%Reduced
Artisan Partners Limited Partnership1,053,876$104.8M0.16%+344,457+48.6%Added
Employees Provident Fund Board1,051,065$104.6M1.30%+25,000+2.4%Added
MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH1,051,976$103.5M3.27%+275,056+35.4%Added
CIBC Private Wealth Group, LLC1,027,178$102.6M0.19%−52,280−4.8%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)1,020,503$101.5M0.29%+58,082+6.0%Added
Blair William & Co1,008,963$100.4M0.29%+6,634+0.7%Added
Kames Capital plc1,005,949$100.1M1.32%−155,472−13.4%Reduced
Mn Services Vermogensbeheer B.V.1,000,899$99.6M0.67%+22,300+2.3%Added
Raiffeisen Bank International AG992,902$97.7M1.48%+992,902New
Zacks Investment Management974,458$96.9M0.90%−217,260−18.2%Reduced
Mirae Asset Global Investments Co., Ltd.974,258$96.3M0.39%−2,390−0.2%Reduced
Saturna Capital CORP945,482$94.1M1.28%−6,718−0.7%Reduced
Mediolanum International Funds Ltd954,936$93.7M1.22%+179,836+23.2%Added
Voya Investment Management LLC938,796$93.4M0.10%−32,549−3.4%Reduced
State of New Jersey Common Pension Fund D936,006$93.1M0.38%−1,212−0.1%Reduced