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Disclosery

MRK MERCK & CO INC

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COM (common), issuer CIK 310158

3,613 managers (3,669 13F filers) reported a position in MRK shares at 2025-12-31, 1,959,484,264 shares in all. 292 filers opened a position and 130 filers sold out during the quarter.

Managers
3,613
13F filers
3,669
New
292
Added
1,379
Reduced
1,400
Sold out
130
Shares held by filers
1,959,484,264

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Resona Asset Management Co.,Ltd.in group Resona Asset Management Co.,L…871,679$91.9M0.44%-65,11813F-HRTimelineGroup
Lansforsakringar Fondforvaltning AB (pu…867,929$91.4M0.45%+11,18613F-HRTimeline
Capital International Investorsgroup of 2 filers holding860,735$90.6M-2,545,378Timeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…860,235$90.5M0.33%-18,29413F-HRTimelineGroup
BLAIR WILLIAM & CO/IL834,024$87.8M0.24%+21,65813F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…830,095$87.4M0.31%-6,84513F-HRTimelineGroup
Compagnie Lombard Odier SCmA827,676$87.1M0.95%+134,77213F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.808,566$85.2M0.12%-93,39313F-HRTimelineGroup
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…797,029$83.9M0.7%-127,10013F-HRTimeline
FORSTA AP-FONDEN792,700$83.4M0.5%-39,10013F-HRTimeline
ING GROEP NV786,498$82.8M0.5%-69,43313F-HRTimeline
TCW GROUP INCin group TCW GROUP INC783,817$82.5M0.59%+289,73213F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS777,967$81.9M0.28%-85,34713F-HRTimeline
DONALDSON CAPITAL MANAGEMENT, LLC777,961$81.9M2.6%-8,92213F-HRTimeline
PBU - The Pension Fund of Early Childho…775,966$81.7M1.18%13F-HR/ATimeline
MERCER GLOBAL ADVISORS INC /ADV775,210$81.6M0.12%+59,15913F-HRTimeline
Vestal Point Capital, LP775,000$81.6M2.99%new13F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC773,718$81.4M0.6%+59,72513F-HRTimelineGroup
Midwest Trust Co766,971$80.7M1.01%+7,84713F-HRTimeline
Bahl & Gaynor LLC764,839$80.5M0.41%-265,00213F-HRTimeline
FERGUSON WELLMAN CAPITAL MANAGEMENT, INC760,650$80.1M1.28%+13,06913F-HRTimeline
CIBC Bancorp USA Inc.group of 2 filers holding742,008$78.1M+349,229Timeline
Calamos Advisors LLCgroup of 2 filers holding739,096$77.8M+213,135Timeline
First Financial Bankshares Inc728,519$76.7M1.54%+7,50913F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM724,490$76.3M0.37%-13,30013F-HRTimeline
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…723,049$76.1M0.6%+127,60813F-HRTimelineGroup
CIBC Asset Management Inc720,718$75.9M0.18%+245,41913F-HRTimeline
NISA INVESTMENT ADVISORS, LLC711,119$75.4M0.25%+27,20713F-HRTimeline
Epoch Investment Partners, Inc.710,451$74.8M0.42%+17,33913F-HRTimeline
Tredje AP-fonden709,260$74.7M0.56%+78,19513F-HRTimeline
OLD REPUBLIC INTERNATIONAL CORP705,600$74.3M3%013F-HRTimeline
PANAGORA ASSET MANAGEMENT INC705,442$74.3M0.26%+567,24913F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM702,282$73.9M0.4%-31,30613F-HRTimeline
Empowered Funds, LLC686,197$72.2M1.23%+83,40513F-HR/ATimeline
COMPASS CAPITAL MANAGEMENT, INC682,027$71.8M3.99%-104,84113F-HRTimeline
Harvest Portfolios Group Inc.670,161$70.5M1.23%-75,66813F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding667,347$70.2M-47,915Timeline
United Super Pty Ltd in its capacity as…658,905$69.4M0.96%new13F-HRTimeline
FIL Ltdin group FIL Ltd656,094$69.1M0.05%-168,14713F-HRTimelineGroup
Czech National Bank654,472$68.9M0.45%+20,08713F-HRTimeline
CACTI ASSET MANAGEMENT LLC644,853$68.8M4.15%+5513F-HRTimeline
AustralianSuper Pty Ltd648,251$68.2M0.32%013F-HRTimeline
FIFTH THIRD BANK, NATIONAL ASSOCIATIONgroup of 2 filers holding639,217$67.3M-13,395Timeline
ProShare Advisors LLC628,875$66.2M0.12%+45,10913F-HRTimeline
FORT WASHINGTON INVESTMENT ADVISORS INC…628,768$66.2M0.35%+16,08013F-HRTimeline
HRT FINANCIAL LP612,756$64.5M0.2%+354,69713F-HRTimeline
Heritage Wealth Advisors610,573$64.3M2.45%-3,52413F-HRTimeline
Jain Global LLC605,675$63.8M0.62%+542,75913F-HRTimeline
OFI INVEST ASSET MANAGEMENT705,885$63.3M0.9%-27,93413F-HRTimeline
WESTWOOD HOLDINGS GROUP INCin group WESTWOOD HOLDINGS GROUP INC599,995$63.2M0.51%+570,77613F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…595,616$62.7M0.3%-24,49413F-HRTimelineGroup
ROCKLAND TRUST CO577,430$60.8M2.39%-2,90913F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…577,332$60.8M0.31%-22,47713F-HRTimeline
WHITTIER TRUST CO557,983$60.7M0.66%+18,57413F-HRTimeline
D.A. DAVIDSON & CO.576,959$60.7M0.37%+24,57613F-HRTimeline
Kestra Advisory Services, LLCgroup of 3 filers holding568,306$59.8M+11,896Timeline
PEAPACK GLADSTONE FINANCIAL CORP567,975$59.8M0.75%+2,09413F-HRTimeline
Douglas Lane & Associates, LLC565,829$59.6M0.82%+26,47913F-HRTimeline
Perpetual Ltdin group Perpetual Ltd563,716$59.3M0.86%+9,26113F-HRTimelineGroup
BANQUE PICTET & CIE SA557,062$58.6M0.59%-231,29113F-HRTimeline
KORNITZER CAPITAL MANAGEMENT INC /KS552,959$58.2M1.21%+7,90513F-HRTimeline
Illinois Municipal Retirement Fund546,730$57.5M0.72%-2,21513F-HRTimeline
Assenagon Asset Management S.A.541,572$57M0.09%-4,955,09213F-HRTimeline
GATEWAY INVESTMENT ADVISERS LLC537,068$56.5M0.53%+59413F-HRTimeline
Zurich Insurance Group Ltd/FIin group Zurich Insurance Group Ltd/FI529,303$55.7M0.39%new13F-HRTimelineGroup
Retirement Systems of Alabama528,014$55.6M0.18%-4,80813F-HRTimeline
VAN LANSCHOT KEMPEN INVESTMENT MANAGEME…524,615$55.2M0.47%-82,12013F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA524,371$55.2M0.26%13F-HRTimelineGroup
Radnor Capital Management, LLC519,558$54.7M8.12%-1,49113F-HRTimeline
Florida Trust Wealth Management Co511,020$53.8M1.49%-9,16113F-HRTimeline
IFM Investors Pty Ltd509,829$53.7M0.45%+45513F-HRTimeline
RNC CAPITAL MANAGEMENT LLC505,611$53.2M2.42%+76113F-HRTimeline
&PARTNERS503,900$53M0.28%+33,46413F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.500,928$52.7M0.43%+277,60813F-HRTimelineGroup
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding495,792$52.2M+112,035Timeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.492,451$51.8M0.17%-72,78613F-HRTimelineGroup
TOCQUEVILLE ASSET MANAGEMENT L.P.in group TOCQUEVILLE ASSET MANAGEMENT …492,211$51.8M0.76%-54,98913F-HRTimelineGroup
Federation des caisses Desjardins du Qu…483,385$50.9M0.19%-8,09513F-HRTimeline
SRB CORPin group SRB CORP473,365$49.8M2.74%013F-HRTimelineGroup
BENJAMIN EDWARDS INCin group BENJAMIN EDWARDS INC472,544$49.7M0.55%-21,39113F-HRTimelineGroup
BANCO BILBAO VIZCAYA ARGENTARIA, S.A.470,498$49.6M0.35%-49,39113F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC469,580$49.5M0.19%+3,98813F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC469,388$49.4M0.27%+93,44613F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG465,812$49.1M0.43%+18,60213F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC465,114$49M0.29%+251,92913F-HRTimelineGroup
AMALGAMATED BANK464,116$48.9M0.35%-11,17213F-HRTimeline
Capitolis Liquid Global Markets LLCin group CAPITOLIS LIQUID GLOBAL MARKE…460,400$48.5M0.29%+206,70013F-HRTimelineGroup
NICHOLS & PRATT ADVISERS LLP /MAin group NICHOLS & PRATT ADVISERS LLP …451,621$47.5M2.97%-3,21113F-HRTimelineGroup
Gotham Asset Management, LLC447,427$47.1M0.17%-144,88013F-HRTimeline
FUKOKU MUTUAL LIFE INSURANCE Co447,246$47.1M3.09%-81313F-HRTimeline
PINNACLE ASSOCIATES LTD446,260$47M0.6%+3,14413F-HRTimeline
Curi Capital, LLC443,222$47M0.81%+52,79913F-HRTimeline
Distillate Capital Partners LLC444,426$46.8M2.41%-113,55713F-HRTimeline
BRITISH COLUMBIA INVESTMENT MANAGEMENT …443,226$46.7M0.25%+81,68913F-HRTimeline
Ilmarinen Mutual Pension Insurance Co441,500$46.5M0.37%+8,50013F-HRTimeline
CORDA Investment Management, LLC.437,074$46M3.35%-3,20913F-HRTimeline
PensionDanmark Pensionsforsikringsaktie…436,052$45.9M0.42%13F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.432,903$45.6M0.15%+34,45113F-HRTimelineGroup
KAHN BROTHERS GROUP INC430,103$45.3M8.02%-3,64713F-HRTimeline
Andra AP-fonden428,100$45.1M0.56%-116,30013F-HRTimeline
S&CO INC425,531$44.8M2.78%+3,00013F-HRTimeline
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …424,416$44.7M0.63%+214,44013F-HRTimelineGroup
Fiduciary Trust Coin group Fiduciary Trust Co423,896$44.6M0.51%-8,14713F-HRTimelineGroup
Raiffeisen Bank International AGin group Raiffeisen Bank International…420,318$44.6M0.58%-279,91613F-HRTimelineGroup
USS Investment Management Ltd423,037$44.5M0.21%+27913F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Cambridge Investment Research Advisors,…421,930$44.4M0.12%+15,56013F-HRTimeline
FengHe Fund Management Pte. Ltd.420,400$44.3M2.49%new13F-HRTimeline
QRG CAPITAL MANAGEMENT, INC.419,909$44.2M0.49%+36,29513F-HRTimeline
Cardinal Capital Management, Inc.304,534$44M0.99%+10,65913F-HRTimeline
Utah Retirement Systems416,297$43.8M0.42%+1513F-HRTimeline
VAUGHAN DAVID INVESTMENTS LLC/IL413,995$43.6M0.95%+1,75413F-HRTimeline
XPONANCE LLC413,211$43.5M0.33%+2,06613F-HRTimeline
MML INVESTORS SERVICES, LLC412,767$43.4M0.11%+66,86313F-HRTimeline
Systematic Alpha Investments, LLC410,682$43.2M1.35%013F-HRTimeline
NEOS Investment Management LLC409,550$43.1M0.25%+61,86613F-HRTimeline
Varma Mutual Pension Insurance Co396,874$41.8M0.25%-5,90013F-HRTimeline
NewEdge Advisors, LLC396,431$41.7M0.15%+55,27313F-HRTimeline
Police & Firemen's Retirement System of…386,353$40.7M0.34%-19,90213F-HRTimeline
AIA Group Ltdin group AIA Group Ltd382,294$40.2M0.6%-113,33913F-HRTimelineGroup
PRUDENTIAL PLCin group PRUDENTIAL PLC380,476$40M0.32%-29,08713F-HRTimelineGroup
MEYER HANDELMAN CO378,287$39.8M1.25%+1,11413F-HRTimeline
LBP AM SA377,424$39.7M0.46%-108,41513F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH370,971$39.5M0.33%+124,20213F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 3 filers holding371,738$39.1M-19,760Timeline
SMITH CHAS P & ASSOCIATES PA CPASin group SMITH CHAS P & ASSOCIATES PA …370,936$39M2.05%+142,40913F-HRTimelineGroup
LETKO, BROSSEAU & ASSOCIATES INC370,534$39M0.64%+16,54513F-HRTimeline
M&G PLCin group M&G PLC371,267$39M0.2%+8,28013F-HRTimelineGroup
Glenview Trust Co367,276$38.7M0.6%-12313F-HRTimeline
SECTOR GAMMA AS363,651$38.3M8.73%+41,15113F-HRTimeline
Capital Investment Advisors, LLC362,811$38.2M0.58%-1,10613F-HRTimeline
EDGAR LOMAX CO/VA358,495$37.7M2.87%-201,70513F-HRTimeline
Sanctuary Advisors, LLC357,508$37.6M0.21%+20,85213F-HRTimeline
Stratos Wealth Partners, LTD.group of 3 filers holding356,268$37.5M+13,942Timeline
LORING WOLCOTT & COOLIDGE FIDUCIARY ADV…345,008$37.2M0.34%-18,79313F-HRTimeline
CONNING INC.in group CONNING INC.352,977$37.2M1.24%-48,08213F-HRTimelineGroup
WATERS PARKERSON & CO., LLC351,723$37M1.82%+10,81013F-HRTimeline
COMMERZBANK AKTIENGESELLSCHAFT /FI350,758$36.9M0.75%+3,50913F-HRTimeline
Cannell & Spears LLC345,940$36.4M0.68%+64813F-HRTimeline
STEPHENS INC /AR/in group Stephens Investment Managemen…342,140$36.2M0.45%+27,25713F-HRTimelineGroup
Advisors Asset Management, Inc.342,689$36.1M0.61%+2,38013F-HR/ATimeline
New York Life Investment Management LLCin group New York Life Investment Mana…340,288$35.8M0.31%+1,12713F-HRTimelineGroup
PINEBRIDGE INVESTMENTS LLC337,483$35.5M0.26%13F-HR/ATimeline
Union Bancaire Privee, UBP SA285,569$35.5M0.42%-105,31213F-HRTimeline
LGT Group Foundationin group LGT Group Foundation334,436$35.5M0.39%+3,19613F-HRTimelineGroup
NISSAY ASSET MANAGEMENT CORP /JAPAN332,835$35M0.18%+2,18613F-HRTimeline
Rakuten Group, Inc.group of 2 filers holding328,494$35M+318,585Timeline
HERITAGE INVESTORS MANAGEMENT CORP331,872$34.9M1.02%+2,21113F-HRTimeline
Northwest & Ethical Investments L.P.328,648$34.6M0.78%+24,11813F-HR/ATimeline
Vinva Investment Management Ltd325,944$34.6M0.43%+89,40013F-HRTimeline
CapWealth Advisors, LLC328,315$34.6M2.37%+2,33513F-HR/ATimeline
Pinnacle Financial Partners, Inc.in group Pinnacle Financial Partners, …325,833$34.3M0.26%13F-HR/ATimelineGroup
MARTINGALE ASSET MANAGEMENT L P323,799$34.1M0.87%-36,02813F-HRTimeline
MAI Capital Management323,491$34.1M0.2%+32,75213F-HRTimeline
Public Sector Pension Investment Board322,582$34M0.11%-23,85513F-HRTimeline
Welch & Forbes LLC322,229$33.9M0.41%-4,52413F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…321,557$33.8M0.12%-1,22613F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC359,473$33.8M0.13%+59413F-HRTimelineGroup
Ethic Inc.318,145$33.5M0.51%+27,07913F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC314,728$33.1M0.28%+219,57913F-HRTimeline
Willis Investment Counsel313,718$33M1.71%-9913F-HRTimeline
Private Wealth Partners, LLC311,787$32.8M2.33%-6,51213F-HRTimeline
State of Alaska, Department of Revenue311,175$32.8M0.35%+51013F-HRTimeline
Bridgewater Associates, LP310,221$32.7M0.12%-203,72213F-HRTimeline
ADAMS DIVERSIFIED EQUITY FUND, INC.in group ADAMS DIVERSIFIED EQUITY FUND…308,800$32.5M1.08%013F-HRTimelineGroup
Generali Asset Management SPA SGR308,173$32.4M0.66%-32,36713F-HRTimeline
Douglass Winthrop Advisors, LLC307,330$32.3M0.57%-1,59713F-HRTimeline
HANCOCK WHITNEY CORP307,300$32.3M0.58%-8,03513F-HRTimeline
Sequoia Financial Advisors, LLC306,143$32.2M0.18%-5,42213F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC305,116$32.1M0.13%-52,48113F-HRTimelineGroup
Elo Mutual Pension Insurance Co304,605$32.1M0.49%+16,39413F-HRTimeline
Howard Capital Management Group, LLC303,032$31.9M2.02%-7,92813F-HRTimeline
THOMPSON SIEGEL & WALMSLEY LLC301,882$31.8M0.54%-50513F-HRTimeline
Steward Partners Investment Advisory, L…299,942$31.6M0.17%+40,45613F-HRTimeline
Quintet Private Bank (Europe) S.A.299,144$31.5M1.83%+8,71413F-HRTimeline
ARGA Investment Management, LP297,409$31.3M0.85%-91913F-HRTimeline
GW&K Investment Management, LLC295,331$31.1M0.27%+12,22113F-HRTimeline
Arax Advisory Partners293,929$30.9M0.9%-135,35813F-HRTimeline
Beacon Pointe Advisors, LLC290,400$30.6M0.21%+6,18713F-HRTimeline
Investment Management Corp of Ontario290,226$30.5M0.41%-12,92713F-HRTimeline
Avanza Fonder AB289,720$30.5M0.77%+25,34413F-HRTimeline
WESBANCO BANK INC289,400$30.5M0.84%-17,17913F-HRTimeline
BRADLEY FOSTER & SARGENT INC/CT288,984$30.4M0.45%-1,35113F-HRTimeline
BECKER CAPITAL MANAGEMENT INC285,455$30.3M0.87%-10,97213F-HRTimeline
Private Advisor Group, LLC285,130$30M0.14%-14,71813F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND284,228$29.9M0.38%-1,33713F-HRTimeline
TD Waterhouse Canada Inc.282,910$29.8M0.19%+30,00113F-HRTimeline
SHELTON CAPITAL MANAGEMENT279,686$29.4M0.58%+91,91013F-HRTimeline
Haverford Trust Co279,635$29.4M0.26%-10,00413F-HRTimeline
OP Asset Management Ltd277,568$29.2M0.36%+3,04913F-HR/ATimeline
FACTORY MUTUAL INSURANCE CO277,374$29.2M0.3%-3,65013F-HRTimeline
CITIZENS FINANCIAL GROUP INC/RIin group CITIZENS FINANCIAL GROUP INC/…276,194$29.1M0.39%-6,59913F-HRTimelineGroup
OMERS ADMINISTRATION Corp275,613$29M0.21%-2,36113F-HRTimeline
ASR Vermogensbeheer N.V.273,878$28.8M0.34%-2,38413F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…271,888$28.6M0.21%+73,61413F-HRTimeline
Saudi Central Bank268,430$28.5M1.06%-313F-HRTimeline
WHITTIER TRUST CO OF NEVADA INC261,332$28.5M0.59%-11,31013F-HRTimeline
Rafferty Asset Management, LLC269,620$28.4M0.1%-10,22813F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…266,050$28M0.29%-4,24213F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC265,061$27.9M0.58%-43,89513F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC253,035$27.7M0.3%-12,63613F-HRTimeline