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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, Q1 2023

Institutional positions in Merck & Co., Inc. as of Mar 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
3,188
+15 vs. Q4 2022
Shares held
1.99B
+80.9M (+4.2%) vs. Q4 2022
Total value
$205.1B
−$6.63B (−3.1%) vs. Q4 2022
New holders
162
1,210 more added
Sold out
147
1,449 more reduced

71 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2023: 3,188 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: 3,618 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 heldQ1 2023: $205.1B
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 20243,502$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, Q1 2023

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q4 2022.

Institutions holding MRK in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Summit Wealth Group, LLC323,654$30.07%+321,512+15,009.9%Added
Atlantic Private Wealth, LLC7$7610.00%+7New
HighMark Wealth Management LLC13$1.43K0.00%00.0%Unchanged
25 LLC16$1.90K0.00%+16New
Sofos Investments, Inc.292$2.72K0.12%+181+163.1%Added
Global Wealth Strategies & Associates26$2.77K0.00%+26New
Credential Qtrade Securities Inc.34$3.62K0.00%−57−62.6%Reduced
Piershale Financial Group, Inc.40$4.26K0.00%+20+100.0%Added
Robbins Farley LLC43$4.58K0.00%00.0%Unchanged
Eukles Asset Management45$4.79K0.00%00.0%Unchanged
Miller Wealth Advisors, LLC111$5.00K0.07%−232−67.6%Reduced
Bradley & Co. Private Wealth Management, LLC51$5.43K0.01%00.0%Unchanged
Ogorek Anthony Joseph76$8.00K0.00%00.0%Unchanged
Mach-1 Financial Group, Inc.409$10.0K0.06%−9,385−95.8%Reduced
PayPay Securities Corp105$11.2K0.75%−55−34.4%Reduced
Mendota Financial Group, LLC140$11.5K0.01%−2−1.4%Reduced
Ruedi Wealth Management, Inc.111$11.9K0.01%−239−68.3%Reduced
Marathon Trading Investment Management LLC128$13.6K0.01%+128New
BBJS Financial Advisors, LLC130$13.8K0.01%00.0%Unchanged
Luken Investment Analytics, LLC134$14.3K0.01%00.0%Unchanged
Baillie Gifford & Co148$15.7K0.00%00.0%Unchanged
FSC Wealth Advisors, LLC150$16.0K0.03%00.0%Unchanged
Sturgeon Ventures LLP174$18.5K0.03%+174New
Grayhawk Investment Strategies Inc.134$19.0K0.01%00.0%Unchanged
Johnson Midwest Financial, LLC183$19.4K0.03%+2+1.1%Added
Adirondack Retirement Specialists, Inc.184$20.0K0.02%+120+187.5%Added
Bellwether Advisors, LLC190$20.2K0.01%−63−24.9%Reduced
Sageworth Trust Co193$20.5K0.00%−117−37.7%Reduced
Gleason Group, Inc.200$21.3K0.01%+200New
Level Financial Advisors, Inc.220$23.4K0.01%00.0%Unchanged
Tfo-TDC, LLC223$23.7K0.01%+222+22,200.0%Added
PrairieView Partners, LLC228$24.0K0.00%+16+7.5%Added
Red Tortoise LLC248$26.4K0.02%−180−42.1%Reduced
Cornerstone Management, Inc.260$27.7K0.01%00.0%Unchanged
One River Asset Management, LLC269$28.5K0.02%+269New
GW&K Investment Management, LLC272$29.0K0.00%+50+22.5%Added
Bromfield Sneider Wealth Advisors280$29.8K0.03%00.0%Unchanged
Financial Avengers, Inc.314$33.4K0.03%+2+0.6%Added
Legend Financial Advisors, Inc.328$34.9K0.03%−138−29.6%Reduced
Cypress Capital Management LLC (WY)335$35.6K0.04%00.0%Unchanged
Tradewinds Capital Management, LLC342$36.4K0.01%+25+7.9%Added
Iron Horse Wealth Management, LLC357$38.0K0.02%−190−34.7%Reduced
Winch Advisory Services, LLC354$38.0K0.01%+2+0.6%Added
Front Row Advisors LLC363$39.0K0.02%+96+36.0%Added
Brown Shipley& Co Ltd376$39.9K0.03%+376New
Operose Advisors LLC377$40.1K0.02%00.0%Unchanged
JDM Financial Group LLC400$42.6K0.04%−69−14.7%Reduced
Park Circle Co400$42.6K0.04%00.0%Unchanged
Tower View Investment Management & Research LLC405$43.0K0.03%00.0%Unchanged
Delos Wealth Advisors, LLC420$44.7K0.06%00.0%Unchanged
Horizon Bancorp Inc438$47.0K0.03%00.0%Unchanged
New Millennium Group LLC447$47.6K0.05%−7−1.5%Reduced
Horizons Wealth Management457$48.6K0.04%00.0%Unchanged
Macroview Investment Management LLC468$49.8K0.08%−90−16.1%Reduced
Pacifica Partners Inc.452$50.6K0.03%00.0%Unchanged
Financial Connections Group, Inc.488$51.0K0.04%−230−32.0%Reduced
Ritter Daniher Financial Advisory LLC492$52.3K0.02%00.0%Unchanged
Cowen Prime Advisors LLC459$53.0K0.02%+59+14.8%Added
Dougherty Wealth Advisers LLC500$53.2K0.08%00.0%Unchanged
American State Bank (Iowa)530$56.4K0.04%00.0%Unchanged
Atwood & Palmer Inc555$59.0K0.01%00.0%Unchanged
Itau Unibanco Holding S.A.559$59.5K0.00%−4,518−89.0%Reduced
Stephens Consulting, LLC566$60.2K0.04%00.0%Unchanged
Stuart Chaussee & Associates, Inc.570$60.6K0.02%00.0%Unchanged
Wolff Wiese Magana LLC570$60.6K0.05%+10+1.8%Added
Point72 Middle East FZE573$61.0K0.00%−125,899−99.5%Reduced
Insight Financial Services597$63.5K0.26%00.0%Unchanged
Copeland Capital Management, LLC600$64.0K0.00%00.0%Unchanged
Kalos Management, Inc.604$64.3K0.13%+604New
Bellevue Asset Management, LLC614$65.4K0.04%−999−61.9%Reduced
Retirement Group, LLC848$66.0K0.03%+113+15.4%Added
Raffa Wealth Management, LLC634$67.5K0.02%+2+0.3%Added
Fairfield Financial Advisors, LTD642$68.0K0.03%+99+18.2%Added
Disciplined Investments, LLC663$70.5K0.03%+2+0.3%Added
James Investment Research Inc668$71.0K0.01%+26+4.0%Added
Syverson Strege & Co686$73.0K0.03%+3+0.4%Added
Moisand Fitzgerald Tamayo, LLC758$80.6K0.02%+171+29.1%Added
Bay Harbor Wealth Management, LLC771$82.6K0.04%−227−22.7%Reduced
Lumature Wealth Partners, LLC803$85.4K0.05%−933−53.7%Reduced
Clear Perspectives Financial Planning, LLC813$86.5K0.05%00.0%Unchanged
RFP Financial Group LLC817$86.9K0.10%−8,745−91.5%Reduced
Versant Capital Management, Inc831$88.4K0.03%00.0%Unchanged
Lowe Wealth Advisors, LLC842$89.6K0.05%−344−29.0%Reduced
Creative Capital Management Investments LLC843$89.7K0.07%00.0%Unchanged
TD Ameritrade Investment Management, LLC846$90.0K0.00%−332−28.2%Reduced
Tucker Asset Management LLC876$93.2K0.03%−243−21.7%Reduced
Nordwand Advisors, LLC921$98.0K0.02%+921New
Core Wealth Advisors, Inc.936$99.6K0.04%00.0%Unchanged
Timber Creek Capital Management LLC975$103.7K0.04%−355−26.7%Reduced
Carderock Capital Management Inc975$103.7K0.04%+975New
ZRC Wealth Management, LLC981$104.4K0.10%+981New
Country Trust Bank986$104.9K0.00%00.0%Unchanged
Ulland Investment Advisors, LLC983$105.0K0.12%00.0%Unchanged
Fortis Capital Advisors, LLC993$105.6K0.06%+15+1.5%Added
Worth Asset Management, LLC1,000$106.4K0.08%00.0%Unchanged
DecisionPoint Financial, LLC1,000$106.4K0.06%00.0%Unchanged
Sit Investment Associates Inc1,029$109.0K0.00%00.0%Unchanged
Cape Investment Advisory, Inc.1,025$109.1K0.07%+1,025New
Kelly Financial Services LLC1,060$112.8K0.06%+75+7.6%Added
Mascoma Wealth Management LLC1,021$117.9K0.03%−75−6.8%Reduced