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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 2025

Institutional positions in Merck & Co., Inc. as of Mar 31, 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
3,459
−96 vs. Q4 2024
Shares held
1.98B
+20.8M (+1.1%) vs. Q4 2024
Total value
$177.7B
−$17.2B (−8.8%) vs. Q4 2024
New holders
180
1,354 more added
Sold out
276
1,598 more reduced

63 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 2025: 3,460 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 heldQ1 2025: $177.7B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q4 2024.

Institutions holding MRK in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Fidelity D & D Bancorp Inc4,824$433.0K0.29%00.0%Unchanged
First National Bank4,830$433.5K0.28%+638+15.2%Added
Human Investing LLC4,841$434.5K0.08%−426−8.1%Reduced
Gentry Private Wealth, LLC4,850$435.3K0.36%+4,850New
BOS Asset Management, LLC4,851$435.4K0.15%−100−2.0%Reduced
Lakeridge Wealth Management LLC4,851$435.5K0.22%−445−8.4%Reduced
Alteri Wealth LLC4,855$435.8K0.19%−540−10.0%Reduced
Sonata Capital Group Inc4,860$436.0K0.19%−1,848−27.5%Reduced
Plan A Wealth LLC4,863$436.5K0.34%−303−5.9%Reduced
FSM Wealth Advisors, LLC4,864$436.6K0.10%−1,849−27.5%Reduced
Fortis Group Advisors, LLC4,867$436.9K0.08%−20−0.4%Reduced
Heritage Financial Services, LLC4,875$437.6K0.04%+67+1.4%Added
Monticello Wealth Management, LLC4,877$437.8K0.04%−827−14.5%Reduced
Lazari Capital Management, Inc.4,878$437.8K0.18%+2,090+75.0%Added
Summa Corp.4,880$438.0K0.25%−200−3.9%Reduced
Novak & Powell Financial Services, Inc.4,895$439.4K0.27%+421+9.4%Added
Connors Investor Services Inc4,899$439.7K0.04%−108,093−95.7%Reduced
Black Diamond Financial, LLC4,899$439.7K0.07%−198−3.9%Reduced
Aspire Private Capital, LLC4,899$439.7K0.11%−8,097−62.3%Reduced
Brighton Securities Corp.4,909$440.6K0.21%+751+18.1%Added
Topsail Wealth Management, LLC4,865$440.7K0.09%+2,746+129.6%Added
Harbour Trust & Investment Management Co4,925$442.1K0.05%−735−13.0%Reduced
Bender Robert & Associates4,932$442.7K0.11%−50−1.0%Reduced
Floyd Financial Group LLC4,937$443.1K0.40%+450+10.0%Added
D'Orazio & Associates, Inc.4,945$443.9K0.07%+1,033+26.4%Added
Legacy Trust4,947$444.0K0.11%−32−0.6%Reduced
Mendel Capital Management LLC4,952$444.5K0.27%+152+3.2%Added
Paulson Wealth Management Inc.4,967$445.8K0.13%−142−2.8%Reduced
Tilson Financial Group, Inc.4,965$446.0K0.18%+132+2.7%Added
Mathes Company, Inc.4,975$447.0K0.18%−550−10.0%Reduced
Sawgrass Asset Management LLC4,990$447.9K0.05%−1,976−28.4%Reduced
Elefante Mark B4,993$448.2K0.36%+1,600+47.2%Added
Virtue Capital Management, LLC5,010$450.0K0.05%−2,199−30.5%Reduced
Keyvantage Wealth, LLC5,020$450.6K0.22%−225−4.3%Reduced
44 Wealth Management LLC5,022$450.8K0.17%−158−3.1%Reduced
QTR Family Wealth, LLC5,022$450.8K0.34%+5,022New
Semus Wealth Partners LLC5,039$452.3K0.32%+382+8.2%Added
Hurlow Wealth Management Group, Inc.5,039$452.3K0.14%+459+10.0%Added
Corps Capital Advisors, LLC5,043$452.7K0.48%00.0%Unchanged
May Hill Capital, LLC5,058$454.0K0.17%−971−16.1%Reduced
Mark Sheptoff Financial Planning, LLC5,068$454.9K0.25%−1,850−26.7%Reduced
Fiera Capital Corp5,094$457.2K0.00%−7,466−59.4%Reduced
Lesa Sroufe & Co5,100$458.0K0.46%+5,100New
Beacon Investment Advisors LLC5,116$459.3K0.22%+3+0.1%Added
Blake Schutter Theil Wealth Advisors, LLC5,135$460.9K0.52%−135−2.6%Reduced
Westend Capital Management, LLC5,135$460.9K0.18%+300+6.2%Added
Pin Oak Investment Advisors Inc3,665$461.0K0.35%+10.0%Added
Emerald Advisors, LLC5,139$461.3K0.06%+1,138+28.4%Added
McIlrath & Eck, LLC5,143$461.6K0.06%+101+2.0%Added
Red Mountain Financial, LLC5,153$462.6K0.56%−1,502−22.6%Reduced
Hummer Financial Advisory Services Inc5,116$463.4K0.38%−73−1.4%Reduced
Farmers & Merchants Trust Co of Chambersburg PA5,170$464.0K0.16%−278−5.1%Reduced
Clarus Group, Inc.5,183$465.2K0.18%+387+8.1%Added
Fiducient Advisors LLC5,155$465.3K0.06%+1,922+59.4%Added
Jmac Enterprises LLC5,186$465.5K0.11%−14,052−73.0%Reduced
Investment Partners, Ltd.5,189$465.7K0.19%+477+10.1%Added
Hollencrest Capital Management5,189$465.8K0.02%−630−10.8%Reduced
Galvin, Gaustad & Stein, LLC5,194$466.2K0.04%+986+23.4%Added
N.E.W. Advisory Services LLC5,197$466.4K0.04%+130+2.6%Added
Tranquility Partners, LLC5,204$467.1K0.18%+5+0.1%Added
Liberty Capital Management, Inc.5,209$467.6K0.10%+277+5.6%Added
MEMBERS Trust Co5,213$467.9K0.02%−27−0.5%Reduced
Cora Capital Advisors LLC5,218$468.3K0.22%+65+1.3%Added
Nelson Capital Management, LLC5,224$468.9K0.08%−500−8.7%Reduced
MKT Advisors LLC5,782$469.4K0.22%+43+0.7%Added
Ignite Planners, LLC5,648$470.3K0.09%+325+6.1%Added
BIP Wealth, LLC5,243$470.6K0.03%−263−4.8%Reduced
Evergreen Wealth Solutions, LLC5,244$470.7K0.32%−226−4.1%Reduced
Opus Capital Group, LLC5,242$471.0K0.06%−496−8.6%Reduced
Beacon Financial Advisory LLC5,252$471.4K0.14%−222−4.1%Reduced
Fairvoy Private Wealth, LLC5,255$471.7K0.13%−12,202−69.9%Reduced
Centennial Wealth Advisory LLC5,254$471.7K0.17%+402+8.3%Added
Asset Allocation & Management Company, LLC5,253$472.0K0.24%00.0%Unchanged
Everstar Asset Management, LLC5,262$472.3K0.31%+1,413+36.7%Added
B&L Asset Management LLC5,267$472.8K0.31%+105+2.0%Added
St. Nicholas Private Asset Management, Inc5,282$474.1K0.45%−615−10.4%Reduced
Indiana Trust & Investment Management CO5,288$474.7K0.17%00.0%Unchanged
Financial Security Advisor, Inc.5,270$477.7K0.12%−655−11.1%Reduced
Rahlfs Capital, LLC5,325$478.0K0.48%00.0%Unchanged
Seven Mile Advisory5,325$478.0K0.32%−534−9.1%Reduced
Union Savings Bank5,343$479.6K0.23%−342−6.0%Reduced
Foundation Wealth Management, LLC5,361$481.2K0.23%+127+2.4%Added
Crown Wealth Group, LLC5,365$481.6K0.25%+176+3.4%Added
Rialto Wealth Management, LLC5,370$482.0K0.15%+27+0.5%Added
Nexus Investment Management ULC3,735$482.2K0.05%+1,110+42.3%Added
Transform Wealth, LLC5,324$482.7K0.03%−30,354−85.1%Reduced
New Republic Capital, LLC5,339$483.2K0.21%+385+7.8%Added
Second Line Capital, LLC5,363$485.7K0.13%+297+5.9%Added
Zions Bancorporation, National Association5,413$485.9K0.03%+5,413New
Fca Corp5,438$488.1K0.16%+12+0.2%Added
Perfromance Wealth Partners, LLC5,450$489.2K0.02%+5,450New
Broadway Wealth Solutions, Inc.5,463$490.4K0.36%−183−3.2%Reduced
Sym Financial Corp5,467$490.7K0.06%+2,601+90.8%Added
Accel Wealth Management5,469$490.9K0.18%−141−2.5%Reduced
Hill Investment Group Partners, LLC5,471$491.1K0.07%−1,690−23.6%Reduced
Bath Savings Trust Co5,478$491.7K0.05%+422+8.3%Added
Shakespeare Wealth Management, Inc.5,483$492.1K0.13%+5,483New
Cornerstone Capital, Inc.5,498$493.5K0.05%00.0%Unchanged
Henshaw Capital LLC5,500$493.7K0.02%00.0%Unchanged
Prossimo Advisors, LLC5,498$494.0K0.37%−702−11.3%Reduced