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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, Q3 2023

Institutional positions in Merck & Co., Inc. as of Sep 30, 2023. 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
3,221
+1 vs. Q2 2023
Shares held
1.92B
−11.1M (−0.6%) vs. Q2 2023
Total value
$197.7B
−$24.4B (−11.0%) vs. Q2 2023
New holders
148
1,298 more added
Sold out
147
1,409 more reduced

41 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2023: 3,221 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 heldQ3 2023: $197.7B
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 20263,812$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, Q3 2023

Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2023.

Institutions holding MRK in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Lynch & Associates96,308$9.91M2.62%−3,180−3.2%Reduced
Park National Corp95,471$9.83M0.44%−1,254−1.3%Reduced
Morgan Dempsey Capital Management LLC95,076$9.79M3.05%−27,073−22.2%Reduced
First Nebraska Trust Co94,107$9.69M1.20%+431+0.5%Added
Great Valley Advisor Group, Inc.93,069$9.58M0.40%+9,052+10.8%Added
Primecap Management Co93,000$9.57M0.01%−3,100−3.2%Reduced
Verition Fund Management LLC92,990$9.57M0.13%+83,633+893.8%Added
Marco Investment Management LLC92,896$9.56M1.10%−639−0.7%Reduced
Mastrapasqua Asset Management Inc92,698$9.54M1.12%−161−0.2%Reduced
Gamco Investors, Inc. Et Al92,215$9.49M0.11%−29,580−24.3%Reduced
Kinneret Advisory, LLC91,504$9.49M1.17%−54−0.1%Reduced
Winslow Asset Management Inc92,122$9.48M2.20%−1,837−2.0%Reduced
Busey Wealth Management91,518$9.42M0.40%−2,437−2.6%Reduced
Simmons Bank90,810$9.35M0.83%−158−0.2%Reduced
Quantinno Capital Management LP90,553$9.32M0.42%−1,869−2.0%Reduced
Round Hill Asset Management90,395$9.31M6.12%−2,152−2.3%Reduced
Gotham Asset Management, LLC90,372$9.30M0.19%+3,551+4.1%Added
Tompkins Financial Corp90,318$9.30M1.46%+9,083+11.2%Added
Kentucky Retirement Systems Insurance Trust Fund90,128$9.28M0.72%−959−1.1%Reduced
Adalta Capital Management LLC89,200$9.25M6.30%+156+0.2%Added
Cyrus J. Lawrence, LLC89,544$9.22M2.53%+89,544New
Hennion & Walsh Asset Management, Inc.89,431$9.21M0.59%+955+1.1%Added
Exchange Traded Concepts, LLC89,348$9.20M0.26%−53,111−37.3%Reduced
Burney Co89,021$9.16M0.43%+37,169+71.7%Added
Redwood Grove Capital, LLC88,700$9.13M3.66%+5,000+6.0%Added
Empirical Finance, LLC88,274$9.09M0.67%+8,903+11.2%Added
Privium Fund Management B.V.87,978$9.06M2.69%−11,300−11.4%Reduced
Mill Capital Management, LLC87,948$9.05M0.89%−131−0.1%Reduced
Siemens Fonds Invest GmbH87,908$9.05M0.92%−8,047−8.4%Reduced
Fort Sheridan Advisors LLC87,859$9.05M2.05%+3,316+3.9%Added
Hi-Line Capital Management, LLC87,205$9.04M3.33%−190−0.2%Reduced
Hamel Associates, Inc.87,711$9.03M3.30%−730−0.8%Reduced
Greenleaf Trust87,615$9.02M0.10%+1,187+1.4%Added
United Asset Strategies, Inc.87,455$9.00M1.16%+2,518+3.0%Added
Bamco Inc87,400$9.00M0.03%00.0%Unchanged
Coldstream Capital Management Inc87,388$9.00M0.29%+8,089+10.2%Added
NewSquare Capital LLC88,454$8.98M0.95%+3,590+4.2%Added
Westfield Capital Management Co LP86,820$8.94M0.06%+5,421+6.7%Added
Exencial Wealth Advisors, LLC86,746$8.93M0.43%+730+0.8%Added
Daymark Wealth Partners, LLC205,373$8.91M0.61%+121,079+143.6%Added
Stamos Capital Partners, L.P.86,500$8.91M1.98%+12,290+16.6%Added
Canandaigua National Bank & Trust Co86,288$8.88M1.44%−6,972−7.5%Reduced
Kovitz Investment Group Partners, LLC86,178$8.87M0.16%−3,748−4.2%Reduced
Engineers Gate Manager LP85,961$8.85M0.33%+85,961New
Leuthold Group, LLC85,941$8.85M1.24%−6,265−6.8%Reduced
Davy Global Fund Management Ltd85,858$8.84M1.82%+1,304+1.5%Added
Mutual Advisors, LLC85,794$8.83M0.34%−964−1.1%Reduced
Live Oak Private Wealth LLC85,284$8.78M1.87%−190.0%Reduced
WealthBridge Investment Counsel Inc.85,245$8.78M3.83%−525−0.6%Reduced
Trust Co of Kansas85,075$8.76M5.59%−1,006−1.2%Reduced
TD Private Client Wealth LLC84,988$8.75M0.38%−9,458−10.0%Reduced
Tudor Investment Corp Et Al84,792$8.73M0.13%+84,792New
River Road Asset Management, LLC84,240$8.67M0.12%−2,635−3.0%Reduced
Violich Capital Management, Inc.84,117$8.66M1.48%−2,900−3.3%Reduced
Kingsview Wealth Management, LLC83,960$8.64M0.31%+11,814+16.4%Added
Sawtooth Solutions, LLC83,249$8.57M0.28%−79,357−48.8%Reduced
Clifford Swan Investment Counsel LLC83,075$8.55M0.36%−876−1.0%Reduced
GFS Advisors, LLC83,062$8.55M1.33%+24,801+42.6%Added
FLC Capital Advisors82,874$8.53M2.58%−483−0.6%Reduced
Carret Asset Management, LLC82,855$8.53M1.19%−448−0.5%Reduced
Integrated Wealth Concepts LLC82,584$8.50M0.15%−3,309−3.9%Reduced
Archon Partners LLC82,500$8.49M1.33%00.0%Unchanged
Level Four Advisory Services, LLC82,497$8.49M0.55%−6,784−7.6%Reduced
Allied Investment Advisors, LLC82,469$8.49M2.54%+545+0.7%Added
Augustine Asset Management Inc82,019$8.44M3.90%−1,640−2.0%Reduced
Shell Asset Management Co81,936$8.44M0.35%−1,214−1.5%Reduced
Miramar Capital, LLC81,728$8.41M2.29%−3,109−3.7%Reduced
Northern Oak Wealth Management Inc81,225$8.36M1.04%+8,144+11.1%Added
Chemung Canal Trust Co81,179$8.36M1.92%+1,063+1.3%Added
Ossiam81,063$8.35M0.15%−134,833−62.5%Reduced
Viking Fund Management LLC81,000$8.34M1.68%00.0%Unchanged
Bleakley Financial Group, LLC80,378$8.27M0.29%−78,759−49.5%Reduced
NJ State Employees Deferred Compensation Plan80,252$8.26M1.25%00.0%Unchanged
Northwestern Mutual Investment Management Company, LLC80,092$8.25M0.22%+52+0.1%Added
Folger Nolan Fleming Douglas Capital Management, Inc79,799$8.21M0.96%−11,228−12.3%Reduced
Sky Investment Group LLC79,699$8.21M1.86%−824−1.0%Reduced
Talbot Financial, LLC79,632$8.20M1.43%+361+0.5%Added
W Advisors, LLC79,275$8.16M6.71%−1,062−1.3%Reduced
Lincoln National Corp79,060$8.14M0.16%+2,992+3.9%Added
Rodgers Brothers Inc.79,035$8.14M1.39%+9,257+13.3%Added
One Capital Management, LLC78,940$8.13M0.36%+3,408+4.5%Added
Fulton Bank, N.A.78,377$8.07M0.40%+2,177+2.9%Added
Narwhal Capital Management77,971$8.03M0.98%+23,719+43.7%Added
Valeo Financial Advisors, LLC96,593$8.01M0.37%+1,191+1.2%Added
Picton Mahoney Asset Management77,665$8.00M0.37%+11,788+17.9%Added
Anchor Investment Management, LLC77,230$7.95M1.04%+1,517+2.0%Added
Advisory Research Inc77,117$7.94M1.10%−2,362−3.0%Reduced
Buffington Mohr McNeal76,418$7.87M1.79%−1,405−1.8%Reduced
Choate Investment Advisors76,390$7.86M0.31%+8,507+12.5%Added
JB Capital LLC76,337$7.86M0.66%+10,484+15.9%Added
HRT Financial LP76,301$7.86M0.08%+76,301New
Advocate Group LLC76,246$7.85M1.82%−6,655−8.0%Reduced
Vinva Investment Management Ltd74,993$7.82M0.74%−985−1.3%Reduced
Independent Advisor Alliance75,967$7.82M0.35%−3,711−4.7%Reduced
Gladstone Institutional Advisory LLC75,963$7.82M0.51%+4,883+6.9%Added
FDx Advisors, Inc.75,655$7.79M0.65%−83,972−52.6%Reduced
Northeast Financial Consultants Inc75,469$7.77M0.49%+340+0.5%Added
Wafra Inc.75,428$7.77M0.26%−253,951−77.1%Reduced
Apollon Wealth Management, LLC75,424$7.76M0.39%+437+0.6%Added
Contravisory Investment Management, Inc.74,934$7.71M2.18%−3,146−4.0%Reduced