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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 2023

Institutional positions in Merck & Co., Inc. as of Dec 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
3,444
+275 vs. Q3 2023
Shares held
1.94B
+26.5M (+1.4%) vs. Q3 2023
Total value
$211.6B
+$14.5B (+7.4%) vs. Q3 2023
New holders
382
1,248 more added
Sold out
107
1,486 more reduced

53 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 2023: 3,444 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 2023: $211.6B
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 2023

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2023.

Institutions holding MRK in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Acorn Wealth Advisors, LLC5,031$548.5K0.33%+20.0%Added
Mayfair Advisory Group, LLC4,844$548.5K0.47%+200+4.3%Added
Holistic Financial Partners5,034$548.8K0.33%−153−2.9%Reduced
SRS Capital Advisors, Inc.5,037$549.2K0.06%+81+1.6%Added
KRS Capital Management, LLC5,058$551.4K0.51%−302−5.6%Reduced
Cora Capital Advisors LLC5,071$552.8K0.33%+240+5.0%Added
Smith & Howard Wealth Management, LLC5,078$553.6K0.20%−2,459−32.6%Reduced
Acorn Creek Capital LLC5,087$554.6K0.25%+5,087New
Lesa Sroufe & Co5,100$556.0K0.57%00.0%Unchanged
Evanson Asset Management, LLC5,103$556.4K0.05%−143−2.7%Reduced
TSFG, LLC5,116$558.0K0.18%−635−11.0%Reduced
Beacon Capital Management, LLC5,421$558.2K0.16%−273−4.8%Reduced
Indiana Trust & Investment Management CO5,127$558.9K0.25%−472−8.4%Reduced
Lighthouse Investment Partners, LLC5,149$561.3K0.04%+5,149New
Blackston Financial Advisory Group, LLC5,151$561.5K0.36%−160−3.0%Reduced
Koss-Olinger Consulting, LLC5,157$562.0K0.06%−1,465−22.1%Reduced
Invenio Wealth Partners LLC5,168$563.4K0.41%+838+19.4%Added
Cognios Beta Neutral Large Cap Fund, LP5,170$563.6K0.74%−452−8.0%Reduced
Private Ocean, LLC5,173$564.0K0.06%00.0%Unchanged
Keating Investment Counselors Inc5,195$566.4K0.20%−300−5.5%Reduced
Atlas Capital Advisors LLC5,205$567.4K0.08%−1,276−19.7%Reduced
Nebula Research & Development LLC5,209$567.9K0.17%+2,318+80.2%Added
Range Financial Group LLC5,215$568.5K0.34%+5,215New
ABLE Financial Group, LLC5,221$569.2K0.25%+109+2.1%Added
Unionview, LLC5,226$569.7K0.51%−37−0.7%Reduced
Walden Wealth Partners LLC5,226$569.7K0.36%+5,226New
Viawealth, LLC5,231$570.3K0.39%00.0%Unchanged
Private Capital Management LLC5,234$570.7K0.14%+213+4.2%Added
Cambridge Financial Group, LLC5,238$571.1K0.30%+5,238New
Cornerstone Capital, Inc.5,243$571.6K0.06%00.0%Unchanged
BOS Asset Management, LLC5,259$573.3K0.39%+177+3.5%Added
Opal Wealth Advisors, LLC5,286$576.3K0.23%−44−0.8%Reduced
Premier Fund Managers Ltd5,300$577.0K0.02%−2,200−29.3%Reduced
Tranquility Partners, LLC5,313$579.2K0.24%−481−8.3%Reduced
Hummer Financial Advisory Services Inc5,289$580.7K0.53%00.0%Unchanged
Wambolt & Associates, LLC5,334$581.5K0.19%−258−4.6%Reduced
Burt Wealth Advisors5,336$581.7K0.17%−215−3.9%Reduced
First United Bank Trust5,341$582.3K0.23%+401+8.1%Added
Roberts Glore & Co Inc5,349$583.1K0.18%−112−2.1%Reduced
JJJ Advisors Inc.5,358$585.2K0.14%−152−2.8%Reduced
St. Clair Advisors, LLC5,386$587.2K0.20%−200−3.6%Reduced
E Fund Management Co., Ltd.5,388$587.4K0.04%+616+12.9%Added
Tempus Wealth Planning, LLC5,398$588.5K0.26%−28−0.5%Reduced
Sawgrass Asset Management LLC5,409$589.7K0.07%+631+13.2%Added
Capital City Trust Co5,414$590.2K0.18%−116−2.1%Reduced
Fca Corp5,421$591.0K0.20%−28−0.5%Reduced
Acima Private Wealth, LLC5,445$593.6K0.23%−448−7.6%Reduced
Defined Wealth Management, LLC5,445$593.6K0.45%+11+0.2%Added
Millennium Capital Advisors, LLC5,450$594.2K0.45%−1,100−16.8%Reduced
Latitude Advisors, LLC5,453$594.5K0.42%+40+0.7%Added
Bourne Lent Asset Management Inc5,467$596.0K0.24%−200−3.5%Reduced
Syntegra Private Wealth Group, LLC5,469$596.2K0.08%+140+2.6%Added
Collective Family Office LLC5,469$596.3K0.21%−370−6.3%Reduced
Luts & Greenleigh Group, Inc5,472$596.6K0.75%+40+0.7%Added
PEAK6 Investments LLC5,479$597.3K0.03%−6,440−54.0%Reduced
FourThought Financial Partners, LLC5,486$598.1K0.08%−1,213−18.1%Reduced
Greenwich Wealth Management LLC5,491$599.0K0.06%−499−8.3%Reduced
Harbour Trust & Investment Management Co5,495$599.1K0.08%+5,495New
Henshaw Capital LLC5,500$599.6K0.03%00.0%Unchanged
Kingfisher Capital LLC5,503$600.0K0.16%−208−3.6%Reduced
Beta Wealth Group, Inc.5,504$600.1K0.31%−97−1.7%Reduced
Summit Asset Management, LLC5,511$600.8K0.14%−393−6.7%Reduced
Wolverine Asset Management LLC5,532$603.1K0.01%−37,932−87.3%Reduced
MKT Advisors LLC5,146$603.2K0.40%+13+0.3%Added
Bath Savings Trust Co5,539$603.9K0.07%+98+1.8%Added
TRUE Private Wealth Advisors5,544$604.4K0.08%−225−3.9%Reduced
Sigma Investment Counselors Inc5,549$605.0K0.04%−2,517−31.2%Reduced
Ignite Planners, LLC5,343$605.0K0.18%−1,013−15.9%Reduced
Osterweis Capital Management Inc5,552$605.3K0.04%−95−1.7%Reduced
Alpha Family Trust5,555$605.6K0.41%00.0%Unchanged
Somerset Trust Co5,572$607.5K0.27%+1,146+25.9%Added
Veracity Capital LLC5,574$607.7K0.24%−215−3.7%Reduced
KLR Investment Advisors, LLC5,536$607.8K0.44%+280+5.3%Added
Austin Private Wealth, LLC5,580$608.3K0.08%+339+6.5%Added
Provence Wealth Management Group5,586$609.0K0.33%+393+7.6%Added
Petrus Trust Company, LTA5,591$609.5K0.06%+5,591New
S.A. Mason LLC5,605$611.1K0.41%−388−6.5%Reduced
KG&L Capital Management,LLC5,606$611.3K0.26%+110+2.0%Added
Westhampton Capital, LLC5,611$611.7K0.36%−445−7.3%Reduced
Ironwood Financial, llc5,612$611.8K0.15%+83+1.5%Added
Cantor Fitzgerald, L. P.5,621$612.8K0.13%−365,153−98.5%Reduced
Cortland Associates Inc5,645$615.0K0.09%+27+0.5%Added
First Affirmative Financial Network5,647$615.6K0.49%+105+1.9%Added
Lynch Asset Management, Inc.5,650$616.0K0.35%00.0%Unchanged
Peoples Bank5,666$617.7K0.49%00.0%Unchanged
Schonfeld Strategic Advisors LLC5,682$619.5K0.01%−68,868−92.4%Reduced
Campion Asset Management LLC5,702$621.6K0.53%−60−1.0%Reduced
Hexagon Capital Partners LLC5,704$621.7K0.15%+2,108+58.6%Added
Regal Wealth Group, Inc.5,322$622.7K0.38%+10.0%Added
Baron Silver Stevens Financial Advisors, LLC5,718$623.4K0.13%+190+3.4%Added
Human Investing LLC5,732$624.9K0.13%−325−5.4%Reduced
Union Savings Bank5,734$625.1K0.35%−117−2.0%Reduced
Legacy Trust5,735$625.2K0.16%−120−2.0%Reduced
Hollencrest Capital Management5,737$625.4K0.06%+313+5.8%Added
Sierra Summit Advisors LLC5,744$626.2K0.18%+5,744New
Lakeridge Wealth Management LLC5,746$626.4K0.45%+5,746New
Holistic Planning, LLC5,754$627.3K0.53%+5,754New
Boltwood Capital Management5,758$627.7K0.21%−200−3.4%Reduced
Olistico Wealth, LLC5,761$628.0K0.49%−1,063−15.6%Reduced
MEMBERS Trust Co5,777$628.4K0.02%−29−0.5%Reduced