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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; 3,854 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 2026

Institutional positions in Merck & Co., Inc. as of Jun 30, 2026. 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
3,854
+96 vs. Q1 2026
Shares held
1.98B
+52.6M (+2.7%) vs. Q1 2026
Total value
$254.3B
+$23.0B (+9.9%) vs. Q1 2026
New holders
214
1,635 more added
Sold out
118
1,508 more reduced

54 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 3,854 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: 3,854 institutions
Value heldQ2 2026: $254.3B
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 20263,854$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, Q2 2026

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q1 2026.

Institutions holding MRK in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Cahaba Wealth Management, Inc.2,305$296.2K0.02%+25+1.1%Added
Sandy Cove Advisors, LLC2,309$296.7K0.07%+157+7.3%Added
Geometric Wealth Advisors2,311$297.0K0.03%+111+5.0%Added
Hutchinson Capital Management2,318$297.9K0.05%−17−0.7%Reduced
Integrated Wealth Management2,322$298.3K0.32%−71−3.0%Reduced
Private Capital Management, LLC2,325$298.8K0.03%00.0%Unchanged
Lexington Hill Partners, LLC2,328$299.1K0.15%+2,328New
Twin Peaks Wealth Advisors, LLC2,328$299.1K0.07%+108+4.9%Added
Hobbs Group Advisors, LLC2,330$299.3K0.08%+2+0.1%Added
Centerpoint Advisory Group2,331$299.5K0.19%+519+28.6%Added
Northstar Advisory Group, LLC2,331$299.6K0.09%+10.0%Added
Cogent Private Wealth, Inc.2,333$299.8K0.19%+73+3.2%Added
Family Wealth Partners, LLC2,340$300.7K0.09%+10+0.4%Added
REAP Financial Group, LLC2,341$300.8K0.05%−109−4.4%Reduced
Chapman Financial Group, LLC2,343$301.1K0.20%−200−7.9%Reduced
Cypress Point Wealth Management, LLC2,343$301.1K0.06%−540−18.7%Reduced
Independent Wealth Network Inc.2,346$301.5K0.08%−63−2.6%Reduced
Invst, LLC2,350$302.0K0.03%−137−5.5%Reduced
Wayfinding Financial, LLC2,337$302.0K0.11%+30+1.3%Added
Elevated Capital Advisors, LLC2,351$302.1K0.08%−89−3.6%Reduced
Avid Wealth Partners LLC2,352$302.4K0.15%+53+2.3%Added
Grant Private Wealth Management Inc2,355$302.6K0.13%−50−2.1%Reduced
Aspen Capital Management, LLC2,357$302.9K0.07%00.0%Unchanged
Guardian Capital, LLC2,360$303.2K0.25%−783−24.9%Reduced
Holland Advisory Services, Inc.2,360$303.3K0.33%00.0%Unchanged
North Forty Two & Co.2,362$303.5K0.26%00.0%Unchanged
Sterling Wealth Management, Inc.2,364$303.8K0.08%−62−2.6%Reduced
Chickasaw Capital Management LLC2,363$304.0K0.01%00.0%Unchanged
Eurizon SLJ Capital Ltd2,367$304.2K0.11%00.0%Unchanged
Englebert Financial Advisers, LLC2,373$304.9K0.30%−496−17.3%Reduced
Charter Capital Management, LLC2,374$305.0K0.14%−2−0.1%Reduced
Coquina Private Wealth LLC2,375$305.2K0.21%−39−1.6%Reduced
Northbridge Financial Group, LLC2,376$305.3K0.12%+30+1.3%Added
Hobart Private Capital, LLC2,378$305.5K0.05%+159+7.2%Added
Tribridge Partners Financial LLC2,340$306.0K0.12%00.0%Unchanged
Pointe Capital Management LLC2,386$306.6K0.14%−45−1.9%Reduced
Riverstone Advisors, LLC2,394$307.6K0.13%+155+6.9%Added
Cohen & Steers, Inc.2,400$308.0K0.00%00.0%Unchanged
Pitcairn Wealth Advisors LLC2,397$308.0K0.03%+2,397New
ShankerValleau Wealth Advisors, Inc.2,407$309.3K0.08%00.0%Unchanged
Santori & Peters2,408$309.4K0.09%+23+1.0%Added
Bay Rivers Group2,408$309.4K0.11%+403+20.1%Added
Alessandra Capital Management, LLC2,410$309.7K0.22%00.0%Unchanged
One + One Wealth Management, LLC2,413$310.1K0.14%−87−3.5%Reduced
Pacitti Group Inc.2,404$310.1K0.10%00.0%Unchanged
Lantern Wealth Advisors, LLC2,413$310.1K0.14%+10.0%Added
Wealthedge Investment Advisors, LLC2,418$310.8K0.11%00.0%Unchanged
Strait & Sound Wealth Management LLC2,424$311.5K0.11%00.0%Unchanged
Leslie Global Wealth, LLC2,427$311.9K0.12%+17+0.7%Added
Brio Consultants, LLC2,428$312.0K0.04%+202+9.1%Added
Aletheian Wealth Advisors LLC2,428$312.0K0.13%+436+21.9%Added
Banque de Luxembourg S.A.2,436$313.0K0.15%−506−17.2%Reduced
Panoramic Capital Partners, LLC2,436$313.0K0.15%+459+23.2%Added
Pine Harbor Wealth Management, LLC2,437$313.1K0.08%+2+0.1%Added
Haven Private, LLC2,444$314.1K0.12%00.0%Unchanged
N.E.W. Advisory Services LLC2,449$314.7K0.02%−91−3.6%Reduced
Birchbrook, Inc.2,450$314.8K0.15%−130−5.0%Reduced
Cooper/Haims Advisors, LLC2,450$314.8K0.14%00.0%Unchanged
Asset Planning,Inc2,452$315.1K0.20%+25+1.0%Added
Investment Research & Advisory Group, Inc.2,399$315.2K0.10%−3,822−61.4%Reduced
Granville Capital, Inc.2,458$315.9K0.14%+35+1.4%Added
Inspire Advisors, LLC2,474$316.3K0.02%−72−2.8%Reduced
Custom Index Systems, LLC2,465$316.8K0.11%+6+0.2%Added
Academy Capital Management Inc2,469$317.3K0.04%00.0%Unchanged
Wealth Analytics Partners, LLC2,627$317.3K0.12%+34+1.3%Added
CWS Financial Advisors, LLC2,472$317.7K0.07%+246+11.1%Added
Motive Wealth Advisors2,473$317.8K0.13%+240+10.7%Added
Fieldview Capital Management, LLC2,481$318.8K0.09%+2,481New
Verdad Advisers, LP2,483$319.1K0.31%−3,177−56.1%Reduced
American Trust Investment Advisors, LLC2,483$319.1K0.16%00.0%Unchanged
Gsa Capital Partners LLP2,493$320.0K0.02%+2,493New
Private Wealth Management Group, LLC2,491$320.1K0.07%00.0%Unchanged
Triton Wealth Management, PLLC2,542$320.2K0.10%−23−0.9%Reduced
WealthShield Partners, LLC2,477$320.4K0.05%−3,451−58.2%Reduced
Quad-Cities Investment Group, LLC2,495$320.6K0.12%+3+0.1%Added
FSA Advisors, Inc.2,497$320.6K0.15%+400+19.1%Added
Spartan Wealth Advisory Services LLC2,497$320.8K0.03%−67−2.6%Reduced
Harvey Capital Management Inc2,497$320.9K0.07%−3−0.1%Reduced
Quaker Wealth Management, LLC2,499$321.2K0.09%+141+6.0%Added
Independent Investors Inc2,500$321.3K0.06%00.0%Unchanged
Waycross Partners, LLC2,500$321.3K0.03%00.0%Unchanged
BlueChip Wealth Advisors LLC2,500$321.3K0.12%00.0%Unchanged
J.E. Simmons & Co., P.C.2,503$321.6K0.18%−21−0.8%Reduced
Sonoma Allocations LLC2,548$322.6K0.14%+2,548New
Osterweis Capital Management Inc2,511$322.7K0.02%−1,672−40.0%Reduced
Pzena Investment Management LLC2,511$322.7K0.00%00.0%Unchanged
Measured Wealth Private Client Group, LLC2,518$323.6K0.08%00.0%Unchanged
Reik & Co., LLC2,522$324.1K0.08%−392−13.5%Reduced
Triune Financial Partners, LLC2,526$324.6K0.07%+42+1.7%Added
Atwater Malick LLC2,527$324.7K0.07%+704+38.6%Added
Richardson Financial Services Inc.2,529$325.0K0.18%+278+12.4%Added
Acorns Advisers, LLC2,527$325.0K0.00%+48+1.9%Added
Guardian Partners Inc.2,532$325.4K0.03%−10,352−80.3%Reduced
Fortune Financial Advisors, LLC2,535$325.7K0.14%00.0%Unchanged
V2 Financial group LLC2,537$326.0K0.12%+722+39.8%Added
Sonata Capital Group Inc2,539$326.2K0.11%−288−10.2%Reduced
O'Keefe Stevens Advisory, Inc.2,544$326.8K0.07%00.0%Unchanged
Waterfront Wealth Inc.2,647$327.0K0.05%+607+29.8%Added
Marks Group Wealth Management, Inc2,546$327.2K0.03%00.0%Unchanged
Clare Market Investments LLC2,548$327.4K0.06%−185−6.8%Reduced