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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 2024

Institutional positions in Merck & Co., Inc. as of Mar 31, 2024. 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
3,546
+150 vs. Q4 2023
Shares held
1.95B
+20.1M (+1.0%) vs. Q4 2023
Total value
$256.9B
+$46.5B (+22.1%) vs. Q4 2023
New holders
261
1,416 more added
Sold out
111
1,490 more reduced

47 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 3,546 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 heldQ1 2024: $256.9B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q4 2023.

Institutions holding MRK in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Atlantic Union Bankshares Corp101,073$13.3M1.12%+474+0.5%Added
Estabrook Capital Management100,864$13.3M2.06%−2,259−2.2%Reduced
Sheaff Brock Investment Advisors, LLC100,711$13.3M1.06%−4,273−4.1%Reduced
Simplicity Wealth,LLC100,396$13.2M0.32%+93,881+1,441.0%Added
Tompkins Financial Corp99,310$13.1M1.48%+173+0.2%Added
Banque Cantonale Vaudoise99,035$13.1M0.51%+14,420+17.0%Added
Norinchukin Bank, The98,892$13.0M0.39%−4,003−3.9%Reduced
Brevan Howard Capital Management LP98,883$13.0M1.19%+68,734+228.0%Added
Avantax Planning Partners, Inc.98,350$13.0M0.42%+40,223+69.2%Added
Johnson Investment Counsel Inc98,347$13.0M0.14%−1,005−1.0%Reduced
Capital Fund Management S.A.98,309$13.0M0.16%+98,309New
John G Ullman & Associates Inc98,199$13.0M1.99%−600−0.6%Reduced
Exencial Wealth Advisors, LLC97,660$12.9M0.48%+6,005+6.6%Added
GAM Holding AG97,351$12.8M0.93%+441+0.5%Added
Vinva Investment Management Ltd96,951$12.8M0.74%+8,900+10.1%Added
Picton Mahoney Asset Management96,402$12.7M0.53%+18,868+24.3%Added
Wallace Advisory Group, LLC116,468$12.7M9.54%−510−0.4%Reduced
Liontrust Investment Partners LLP96,137$12.7M0.18%−11,625−10.8%Reduced
Naples Global Advisors, LLC95,541$12.7M1.30%−278−0.3%Reduced
Shelton Capital Management96,022$12.7M0.36%−39,708−29.3%Reduced
Country Club Bank96,017$12.7M0.89%−1,446−1.5%Reduced
Easterly Investment Partners LLC95,627$12.6M0.96%−37,613−28.2%Reduced
Capital International Inc95,525$12.6M0.17%+59,441+164.7%Added
First Nebraska Trust Co95,315$12.6M1.30%−847−0.9%Reduced
Meiji Yasuda Asset Management Co Ltd.94,784$12.5M0.53%−23,337−19.8%Reduced
Camden National Bank94,685$12.5M2.21%−3,709−3.8%Reduced
Eldred Rock Partners, LLC94,487$12.5M6.79%+940+1.0%Added
SG Americas Securities, LLC94,474$12.5M0.06%−20,309−17.7%Reduced
Coldstream Capital Management Inc94,398$12.5M0.32%+3,197+3.5%Added
Redwood Grove Capital, LLC94,000$12.4M3.86%+5,300+6.0%Added
Greenwood Gearhart Inc93,981$12.4M1.21%−33,079−26.0%Reduced
Westfield Capital Management Co LP93,816$12.4M0.06%+6,190+7.1%Added
Hunter Perkins Capital Management, LLC93,327$12.4M2.53%−6,390−6.4%Reduced
Marco Investment Management LLC93,680$12.4M1.17%+1,443+1.6%Added
1st Source Bank93,393$12.3M0.72%−6,047−6.1%Reduced
Winslow Asset Management Inc93,369$12.3M2.32%+463+0.5%Added
Daymark Wealth Partners, LLC211,580$12.2M0.66%+793+0.4%Added
Empirical Finance, LLC91,929$12.1M0.74%+3,067+3.5%Added
Busey Wealth Management91,517$12.1M0.43%+1,347+1.5%Added
Quantbot Technologies LP91,444$12.1M0.68%+60,867+199.1%Added
Two Sigma Securities, LLC91,278$12.0M0.59%+38,359+72.5%Added
Kinneret Advisory, LLC90,642$12.0M1.20%−283−0.3%Reduced
Cullen Investment Group, Ltd.92,190$12.0M1.89%+2,645+3.0%Added
Fort Sheridan Advisors LLC90,907$12.0M2.26%+783+0.9%Added
Adalta Capital Management LLC90,260$12.0M6.62%+1,180+1.3%Added
United Asset Strategies, Inc.90,318$11.9M1.19%−3,182−3.4%Reduced
Rothschild Investment LLC90,240$11.9M0.86%−935−1.0%Reduced
Lynch & Associates90,185$11.9M2.75%−4,431−4.7%Reduced
Core Alternative Capital90,045$11.9M2.13%−20,408−18.5%Reduced
Bamco Inc90,000$11.9M0.03%+2,600+3.0%Added
JB Capital LLC89,857$11.9M0.79%+804+0.9%Added
Great Valley Advisor Group, Inc.89,714$11.8M0.36%−9,337−9.4%Reduced
Hamel Associates, Inc.89,659$11.8M3.79%−85−0.1%Reduced
Balentine LLC89,541$11.8M0.35%−3,446−3.7%Reduced
Westpac Banking Corp89,463$11.8M0.90%−14,795−14.2%Reduced
TD Private Client Wealth LLC89,090$11.8M0.39%+3,598+4.2%Added
Simmons Bank88,816$11.7M0.88%−960−1.1%Reduced
SpiderRock Advisors, LLC96,176$11.7M0.38%+96,176New
Mutual Advisors, LLC88,146$11.6M0.37%+2,857+3.3%Added
Everence Capital Management Inc88,091$11.6M0.77%00.0%Unchanged
Violich Capital Management, Inc.87,677$11.6M1.66%+2,760+3.3%Added
Mill Capital Management, LLC87,548$11.6M0.96%−400−0.5%Reduced
Capitolis Liquid Global Markets LLC86,700$11.4M0.18%+13,400+18.3%Added
Sectoral Asset Management Inc86,500$11.4M4.49%+7,000+8.8%Added
Adams Diversified Equity Fund, Inc.86,400$11.4M0.40%−246,300−74.0%Reduced
Meiji Yasuda Life Insurance Co85,077$11.2M0.24%+10,962+14.8%Added
Talbot Financial, LLC84,992$11.2M1.50%+722+0.9%Added
CX Institutional84,920$11.2M0.54%+9,751+13.0%Added
CSM Advisors, LLC84,818$11.2M0.74%+1,020+1.2%Added
Allied Investment Advisors, LLC84,782$11.2M2.70%+2,289+2.8%Added
WealthBridge Investment Counsel Inc.84,715$11.2M4.15%−580−0.7%Reduced
Longbow Finance SA84,664$11.2M1.13%−101,228−54.5%Reduced
FLC Capital Advisors84,603$11.2M2.82%−968−1.1%Reduced
Wedbush Securities Inc84,392$11.1M0.42%+8,581+11.3%Added
Kentucky Retirement Systems Insurance Trust Fund83,625$11.0M0.76%−6,652−7.4%Reduced
Bleakley Financial Group, LLC83,536$11.0M0.32%+3,036+3.8%Added
Tritonpoint Wealth, LLC106,955$11.0M1.15%+1,934+1.8%Added
Park National Corp83,183$11.0M0.42%−7,994−8.8%Reduced
Concurrent Investment Advisors, LLC82,896$10.9M0.44%−2,494−2.9%Reduced
Buffington Mohr McNeal82,787$10.9M1.98%+6,041+7.9%Added
Aptus Capital Advisors, LLC82,327$10.9M0.23%+10,006+13.8%Added
Rodgers Brothers Inc.82,284$10.9M1.48%−19,829−19.4%Reduced
GFS Advisors, LLC81,944$10.8M1.79%−1,486−1.8%Reduced
Canandaigua National Bank & Trust Co81,655$10.8M1.59%−2,136−2.5%Reduced
Morgan Dempsey Capital Management LLC81,584$10.8M3.45%−8,499−9.4%Reduced
One Capital Management, LLC81,573$10.8M0.39%+1,765+2.2%Added
Trust Co of Kansas81,275$10.7M5.85%−2,467−2.9%Reduced
Hi-Line Capital Management, LLC80,534$10.7M3.79%+1,066+1.3%Added
Choate Investment Advisors80,547$10.6M0.29%+904+1.1%Added
Northwestern Mutual Investment Management Company, LLC80,408$10.6M0.28%+201+0.3%Added
Integrated Wealth Concepts LLC80,273$10.6M0.15%+5,017+6.7%Added
NJ State Employees Deferred Compensation Plan80,252$10.6M1.34%00.0%Unchanged
Carret Asset Management, LLC79,648$10.5M1.24%−2,480−3.0%Reduced
Darwin Global Management, Ltd.79,600$10.5M1.40%+79,600New
Gamco Investors, Inc. Et Al79,551$10.5M0.11%−2,939−3.6%Reduced
Clifford Swan Investment Counsel LLC79,499$10.5M0.39%−3,712−4.5%Reduced
Investment Management Corp of Ontario79,458$10.5M0.31%−35,057−30.6%Reduced
Brandywine Global Investment Management, LLC79,295$10.5M0.08%−1,130,363−93.4%Reduced
Siemens Fonds Invest GmbH79,068$10.4M0.80%−2,233−2.7%Reduced
Sky Investment Group LLC78,799$10.4M2.00%−340−0.4%Reduced