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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, Q2 2025

Institutional positions in Merck & Co., Inc. as of Jun 30, 2025. 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
3,338
−73 vs. Q1 2025
Shares held
1.97B
−5.75M (−0.3%) vs. Q1 2025
Total value
$155.9B
−$21.3B (−12.0%) vs. Q1 2025
New holders
178
1,301 more added
Sold out
251
1,540 more reduced

49 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: 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 holdersQ2 2025: 3,338 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 heldQ2 2025: $155.9B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q1 2025.

Institutions holding MRK in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
AllSquare Wealth Management LLC3,350$265.2K0.15%00.0%Unchanged
Northwest Quadrant Wealth Management, LLC3,351$265.3K0.06%−555−14.2%Reduced
One Charles Private Wealth Services, LLC3,353$265.4K0.07%−127−3.6%Reduced
Fortitude Advisory Group L.L.C.3,361$266.1K0.15%−574−14.6%Reduced
ASB Consultores, LLC3,362$266.1K0.18%+929+38.2%Added
One Day In July LLC3,363$266.2K0.02%+382+12.8%Added
Consolidated Planning Corp3,364$266.3K0.03%−1,386−29.2%Reduced
Abundance Wealth Counselors3,378$267.0K0.05%−179−5.0%Reduced
Mattern Capital Management, LLC3,376$267.2K0.03%+728+27.5%Added
Retirement Planning Group, LLC3,368$268.0K0.24%+14+0.4%Added
Adamsbrown Wealth Consultants LLC3,395$268.8K0.08%+309+10.0%Added
Galvin, Gaustad & Stein, LLC3,395$268.8K0.02%−1,799−34.6%Reduced
Princeton Global Asset Management LLC3,396$268.8K0.05%−5,998−63.8%Reduced
Gitterman Wealth Management, LLC3,407$269.9K0.06%+1,068+45.7%Added
Arlington Trust Co LLC3,410$269.9K0.05%−4,245−55.5%Reduced
Garden State Investment Advisory Services LLC3,379$270.0K0.07%−328−8.8%Reduced
Gould Asset Management LLC3,425$271.1K0.05%−145−4.1%Reduced
Post Resch Tallon Group Inc.3,429$271.4K0.26%−170−4.7%Reduced
Sterling Wealth Management, Inc.3,430$271.5K0.09%+3,430New
Johnson Financial Group, LLC3,447$272.8K0.03%−412−10.7%Reduced
Ballast, Inc.3,448$272.9K0.07%00.0%Unchanged
Opal Wealth Advisors, LLC3,448$273.0K0.08%+290+9.2%Added
Dakota Community Bank & Trust NA3,450$273.1K1.22%−901−20.7%Reduced
CMG Global Holdings, LLC3,257$273.8K0.14%−432−11.7%Reduced
Financial Partners Group, Inc3,466$274.4K0.04%+31+0.9%Added
High Falls Advisors, Inc3,467$274.4K0.06%+16+0.5%Added
Rakuten Securities, Inc.3,467$274.4K0.11%−495−12.5%Reduced
Argent Capital Management LLC3,475$275.1K0.01%00.0%Unchanged
Strategent Financial, LLC3,475$275.1K0.21%00.0%Unchanged
RTD Financial Advisors, Inc.3,476$275.2K0.04%−123−3.4%Reduced
Colonial River Wealth Management, LLC3,281$275.7K0.12%+294+9.8%Added
Mosaic Family Wealth Partners, LLC3,486$276.0K0.04%−3−0.1%Reduced
Archetype Wealth Partners3,492$276.0K0.04%−261−7.0%Reduced
Alteri Wealth LLC3,493$276.5K0.11%−1,362−28.1%Reduced
Ironwood Investment Management LLC3,494$276.6K0.13%−177−4.8%Reduced
Womack Financial LLC3,494$276.6K0.23%+655+23.1%Added
Petix & Botte Co3,496$276.7K0.07%00.0%Unchanged
Financial Sense Advisors, Inc.3,500$277.1K0.07%+3,500New
Greatmark Investment Partners, Inc.3,504$277.4K0.03%−336−8.8%Reduced
Tortoise Investment Management, LLC3,506$277.6K0.03%+75+2.2%Added
MBE Wealth Management, LLC3,507$277.6K0.12%+45+1.3%Added
Oak Hill Wealth Advisors, LLC3,419$278.2K0.06%+3,419New
Westend Capital Management, LLC3,525$279.0K0.09%−1,610−31.4%Reduced
Cranbrook Wealth Management, LLC3,533$279.7K0.06%−21−0.6%Reduced
Benchmark Financial Wealth Advisors, LLC3,534$279.7K0.09%−15−0.4%Reduced
BKM Wealth Management, LLC3,536$279.9K0.11%−356−9.1%Reduced
Viewpoint Capital Management LLC3,539$280.2K0.14%−246−6.5%Reduced
Burt Wealth Advisors3,543$280.5K0.06%−186−5.0%Reduced
Verum Partners LLC3,550$281.1K0.06%+272+8.3%Added
Paces Ferry Wealth Advisors, LLC3,553$281.3K0.13%+330+10.2%Added
TBH Global Asset Management, LLC3,554$281.3K0.06%−486−12.0%Reduced
Pennsylvania Capital Management Inc3,555$281.4K0.09%−805−18.5%Reduced
Blackston Financial Advisory Group, LLC3,555$281.5K0.18%−90−2.5%Reduced
Vista Investment Partners LLC3,559$281.7K0.08%−347−8.9%Reduced
Kennedy Investment Group3,570$282.6K0.12%−440−11.0%Reduced
Per Stirling Capital Management, LLC.3,572$282.7K0.04%−311−8.0%Reduced
Breed's Hill Capital LLC3,582$283.6K0.14%−874−19.6%Reduced
Wealthedge Investment Advisors, LLC3,582$283.6K0.12%−7−0.2%Reduced
Three Seasons Wealth, LLC3,547$283.7K0.03%00.0%Unchanged
Opus Capital Group, LLC3,603$285.0K0.03%−1,639−31.3%Reduced
Ullmann Financial Group, Inc.3,606$285.4K0.03%−95−2.6%Reduced
Scott Marsh Financial, LLC3,606$285.5K0.11%+3,606New
Sterneck Capital Management, LLC3,611$285.8K0.15%00.0%Unchanged
Truvestments Capital LLC3,611$285.9K0.06%+105+3.0%Added
Wealth Group, Ltd.3,616$286.0K0.28%−4,416−55.0%Reduced
Somerset Group LLC3,613$286.0K0.24%00.0%Unchanged
Goldstein Advisors, LLC3,615$286.2K0.04%−44−1.2%Reduced
Collective Family Office LLC3,618$286.4K0.07%−47−1.3%Reduced
Bell Bank3,635$287.7K0.01%−100−2.7%Reduced
Illumine Investment Management, LLC3,640$288.1K0.23%+700+23.8%Added
Mountain Pacific Investment Advisers Inc3,641$288.2K0.02%00.0%Unchanged
Summit X, LLC3,639$288.3K0.05%+644+21.5%Added
Evanson Asset Management, LLC3,657$289.5K0.02%+158+4.5%Added
Morey & Quinn Wealth Partners, LLC3,657$289.5K0.23%−45−1.2%Reduced
Schubert & Co3,663$290.0K0.21%+154+4.4%Added
Cannon Financial Strategists, Inc.3,666$290.2K0.05%−12−0.3%Reduced
Verus Financial Partners, Inc.3,469$290.4K0.03%+101+3.0%Added
First Long Island Investors, LLC3,682$291.5K0.02%−423−10.3%Reduced
McLean Asset Management Corp3,543$291.9K0.08%+125+3.7%Added
Wilkins Miller Wealth Management, LLC3,691$292.3K0.20%+34+0.9%Added
Greenline Partners, LLC3,693$292.3K0.04%−10−0.3%Reduced
PFS Partners, LLC3,700$292.9K0.15%+36+1.0%Added
Aufman Associates Inc3,704$293.2K0.18%+100+2.8%Added
Red Mountain Financial, LLC3,708$293.5K0.33%−1,445−28.0%Reduced
Rise Advisors, LLC3,709$293.6K0.12%−177−4.6%Reduced
SGL Investment Advisors, Inc.3,611$293.8K0.14%−168−4.4%Reduced
Huntleigh Advisors, Inc.3,713$294.0K0.06%−18−0.5%Reduced
Payden & Rygel3,710$294.0K0.02%−3,700−49.9%Reduced
Seizert Capital Partners, LLC3,720$294.5K0.01%00.0%Unchanged
Smallwood Wealth Investment Management, LLC3,722$294.7K0.17%−34−0.9%Reduced
Alexander Labrunerie & Co., Inc.3,724$294.8K0.12%+230+6.6%Added
Liberty Wealth Management LLC3,726$295.0K0.05%+3,726New
JTC Employer Solutions Trusteee Ltd3,729$295.0K0.03%00.0%Unchanged
Mraz, Amerine & Associates, Inc.3,728$295.1K0.05%+1,000+36.7%Added
Stanley-Laman Group, Ltd.3,730$295.3K0.04%−3,084−45.3%Reduced
Advisory Alpha, LLC3,729$295.3K0.01%−197−5.0%Reduced
Nexus Investment Management ULC3,735$295.7K0.04%00.0%Unchanged
Sentinus, LLC3,745$296.5K0.07%+199+5.6%Added
Muirfield Wealth Advisors LLC3,746$296.5K0.24%+36+1.0%Added
Seed Wealth Management, Inc.3,747$296.6K0.22%+12+0.3%Added