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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
3,337
−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
1,539 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: 3,337 institutions
Q1 2021: 2,693 institutionsQ2 2021: 2,684 institutionsQ3 2021: 2,658 institutionsQ4 2021: 2,910 institutionsQ1 2022: 2,961 institutionsQ2 2022: 3,019 institutionsQ3 2022: 2,996 institutionsQ4 2022: 3,243 institutionsQ1 2023: 3,187 institutionsQ2 2023: 3,261 institutionsQ3 2023: 3,221 institutionsQ4 2023: 3,443 institutionsQ1 2024: 3,546 institutionsQ2 2024: 3,557 institutionsQ3 2024: 3,501 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 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 20263,812$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 20243,501$221.8B
Q2 20243,557$242.3B
Q1 20243,546$256.9B
Q4 20233,443$211.6B
Q3 20233,221$197.7B
Q2 20233,261$222.8B
Q1 20233,187$205.1B
Q4 20223,243$212.2B
Q3 20222,996$162.7B
Q2 20223,019$171.5B
Q1 20222,961$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
Hamilton Capital Partners Inc.54,429$4.31M0.22%+10,108+22.8%Added
Liberty One Investment Management, LLC54,397$4.31M0.44%+11,875+27.9%Added
APG Asset Management US Inc.52,382$4.29M0.03%00.0%Unchanged
Bank of Hawaii54,129$4.28M0.23%−6,241−10.3%Reduced
New Hampshire Trust53,744$4.25M0.89%+941+1.8%Added
Cypress Capital Group53,580$4.24M0.53%+1,593+3.1%Added
KMG Fiduciary Partners, LLC53,278$4.22M0.31%−674−1.2%Reduced
BKD Wealth Advisors, LLC53,277$4.22M0.09%−557−1.0%Reduced
Searle & Co.53,274$4.22M1.19%−1,400−2.6%Reduced
Meridian Wealth Advisors, LLC53,027$4.20M0.66%−783−1.5%Reduced
SS&H Financial Advisors, Inc.52,943$4.19M1.40%+9,163+20.9%Added
Walleye Capital LLC52,942$4.19M0.04%−160,196−75.2%Reduced
Brighton Jones LLC52,883$4.19M0.11%+13,746+35.1%Added
Fifth Third Wealth Advisors LLC52,753$4.18M0.18%−15,614−22.8%Reduced
Philadelphia Trust Co52,691$4.17M0.32%−275−0.5%Reduced
NBC Securities, Inc.52,685$4.17M0.34%+6,732+14.6%Added
Ronald Blue Trust, Inc.52,663$4.17M0.05%+728+1.4%Added
Pine Valley Investments Ltd Liability Co52,323$4.15M0.24%+3,538+7.3%Added
Aster Capital Management (DIFC) Ltd52,442$4.15M0.94%+38,444+274.6%Added
Equitable Trust Co52,406$4.15M0.21%−1,576−2.9%Reduced
Claret Asset Management Corp52,176$4.13M0.53%––
New England Asset Management Inc52,150$4.13M0.64%+6,855+15.1%Added
Jacobs Levy Equity Management, Inc52,141$4.13M0.02%−1,290,474−96.1%Reduced
Pinkerton Retirement Specialists, LLC51,991$4.12M0.49%+7,069+15.7%Added
Primecap Management Co51,900$4.11M0.00%−5,600−9.7%Reduced
Excalibur Management Corp51,859$4.11M1.54%+1,432+2.8%Added
Symphony Financial, Ltd. Co.47,250$4.06M0.53%+47,250New
Sage Capital Advisors,llc51,056$4.04M1.00%+51,056New
Chicago Trust Co NA50,952$4.03M0.57%+6,300+14.1%Added
Core Alternative Capital50,709$4.01M1.10%−8,254−14.0%Reduced
Town & Country Bank & Trust CO dba First Bankers Trust CO50,692$4.01M1.48%−919−1.8%Reduced
tru Independence LLC50,671$4.01M1.16%−306−0.6%Reduced
DF Dent & Co Inc50,540$4.00M0.05%+4,809+10.5%Added
Schonfeld Strategic Advisors LLC50,499$4.00M0.03%−516,105−91.1%Reduced
Martin Investment Management, LLC50,476$4.00M1.02%+385+0.8%Added
Stenger Family Office, LLC48,678$3.98M1.05%+48,678New
Resources Investment Advisors, LLC.50,121$3.97M0.04%−5,779−10.3%Reduced
Boston Family Office LLC50,120$3.97M0.26%−365−0.7%Reduced
Butensky & Cohen Financial Security, Inc50,048$3.96M1.18%+5,835+13.2%Added
Destination Wealth Management49,988$3.96M0.12%−170,467−77.3%Reduced
Sentry LLC49,699$3.93M0.78%−2,588−4.9%Reduced
Cullinan Associates Inc49,594$3.93M0.26%+4,275+9.4%Added
Pittenger & Anderson Inc49,365$3.91M0.14%+1,125+2.3%Added
Wealthspire Advisors, LLC49,274$3.90M0.02%+179+0.4%Added
Park National Corp49,239$3.90M0.13%−1,994−3.9%Reduced
Patrick M Sweeney & Associates, Inc48,119$3.89M2.68%+427+0.9%Added
Monte Financial Group, LLC49,090$3.89M1.51%−14,033−22.2%Reduced
Letson Investment Management, Inc.49,063$3.88M1.53%+416+0.9%Added
Pinnacle Wealth Management Advisory Group, LLC48,931$3.87M0.32%−4,030−7.6%Reduced
Tobam48,727$3.86M1.51%−8,861−15.4%Reduced
Ballentine Partners, LLC48,716$3.86M0.06%−11,780−19.5%Reduced
Glassy Mountain Advisors, Inc.48,715$3.86M1.24%+210.0%Added
Sphera Funds Management Ltd.48,600$3.85M1.01%−11,000−18.5%Reduced
Walled Lake Planning & Wealth Management, LLC48,553$3.84M1.25%+788+1.6%Added
Occidental Asset Management, LLC48,439$3.83M0.53%+33,785+230.6%Added
Sig Brokerage, LP48,401$3.83M1.05%+14,562+43.0%Added
Hallmark Capital Management Inc48,157$3.81M0.27%−1,678−3.4%Reduced
Caldwell Trust Co48,103$3.81M0.38%−1,263−2.6%Reduced
RFG Advisory, LLC48,102$3.81M0.09%−15,467−24.3%Reduced
Panagora Asset Management Inc48,003$3.80M0.02%−770,925−94.1%Reduced
Sandhill Capital Partners LLC47,973$3.80M0.27%+1,644+3.5%Added
HBK Sorce Advisory LLC47,964$3.80M0.10%−2,764−5.4%Reduced
Thematics Asset Management47,963$3.80M0.17%−1,052−2.1%Reduced
Winton Group Ltd47,854$3.79M0.19%+47,854New
Turtle Creek Wealth Advisors, LLC47,813$3.78M0.45%+7,335+18.1%Added
Entropy Technologies, LP47,489$3.76M0.30%+2,022+4.4%Added
Ipswich Investment Management Co., Inc.47,412$3.75M0.91%−1,508−3.1%Reduced
Hohimer Wealth Management, LLC47,409$3.75M0.67%−2,195−4.4%Reduced
V-Square Quantitative Management LLC47,150$3.73M0.50%−7,914−14.4%Reduced
Mesirow Financial Investment Management, Inc.47,037$3.72M0.07%−1,456−3.0%Reduced
Cinctive Capital Management LP47,026$3.72M0.21%+47,026New
M Holdings Securities, Inc.47,025$3.72M0.64%+16,814+55.7%Added
Parallel Advisors, LLC46,986$3.72M0.07%−7,640−14.0%Reduced
B & T Capital Management DBA Alpha Capital Management46,838$3.71M0.64%+4,072+9.5%Added
Central Bank & Trust Co46,789$3.70M0.61%+697+1.5%Added
McGinn Investment Management, Inc.46,781$3.70M2.34%+11,666+33.2%Added
Northeast Investment Management46,762$3.70M0.16%−7,089−13.2%Reduced
Chatham Capital Group, Inc.46,617$3.69M0.56%+13,730+41.7%Added
Brooks, Moore & Associates, Inc.47,156$3.68M1.99%−425−0.9%Reduced
Bontempo Ohly Capital Mgmt LLC46,479$3.68M1.67%+1,893+4.2%Added
Leelyn Smith, LLC46,468$3.68M0.60%+3,661+8.6%Added
Dark Forest Capital Management LP46,347$3.67M0.15%+34,528+292.1%Added
Univest Financial Corp46,293$3.66M0.22%−183−0.4%Reduced
Groupe la Francaise46,461$3.66M0.06%−23,943−34.0%Reduced
Phoenix Holdings Ltd.45,838$3.65M0.05%−46,017−50.1%Reduced
Harbor Capital Advisors, Inc.46,014$3.64M0.15%−173−0.4%Reduced
Arnhold LLC45,998$3.64M0.33%+36,056+362.7%Added
Newman Dignan & Sheerar, Inc.45,934$3.64M0.84%−1,051−2.2%Reduced
Signaturefd, LLC45,885$3.63M0.06%−5,064−9.9%Reduced
Community Bank & Trust, Waco, Texas45,770$3.62M0.82%−918−2.0%Reduced
Canada Post Corp Registered Pension Plan45,633$3.61M0.21%+45,633New
Howland Capital Management LLC45,090$3.61M0.15%+6,627+17.2%Added
Thrive Capital Management, LLC45,402$3.59M1.13%+26,464+139.7%Added
Modera Wealth Management, LLC45,255$3.58M0.04%−2,910−6.0%Reduced
Rench Wealth Management, Inc.45,128$3.57M1.13%+1,281+2.9%Added
Venture Visionary Partners LLC44,995$3.56M0.13%−1,468−3.2%Reduced
Burney Co44,968$3.56M0.12%−6,446−12.5%Reduced
Oakworth Capital, Inc.44,928$3.56M0.23%−1,826−3.9%Reduced
Nordwand Advisors, LLC44,872$3.55M0.56%+43,951+4,772.1%Added
Meeder Advisory Services, Inc.44,859$3.55M0.18%−4,167−8.5%Reduced