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 2025
Institutional positions in Merck & Co., Inc. as of Sep 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
- 3,319
- +42 vs. Q2 2025
- Shares held
- 1.90B
- −25.7M (−1.3%) vs. Q2 2025
- Total value
- $159.8B
- +$6.99B (+4.6%) vs. Q2 2025
- New holders
- 191
- 1,361 more added
- Sold out
- 149
- 1,427 more reduced
60 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 3,855 | $254.3B |
| Q1 2026 | 3,812 | $231.9B |
| Q4 2025 | 3,674 | $206.6B |
| Q3 2025 | 3,319 | $159.8B |
| Q2 2025 | 3,337 | $155.9B |
| Q1 2025 | 3,459 | $177.7B |
| Q4 2024 | 3,618 | $196.9B |
| Q3 2024 | 3,501 | $221.8B |
| Q2 2024 | 3,557 | $242.3B |
| Q1 2024 | 3,546 | $256.9B |
| Q4 2023 | 3,443 | $211.6B |
| Q3 2023 | 3,221 | $197.7B |
| Q2 2023 | 3,261 | $222.8B |
| Q1 2023 | 3,187 | $205.1B |
| Q4 2022 | 3,243 | $212.2B |
| Q3 2022 | 2,996 | $162.7B |
| Q2 2022 | 3,019 | $171.5B |
| Q1 2022 | 2,961 | $152.1B |
| Q4 2021 | 2,910 | $142.2B |
| Q3 2021 | 2,658 | $138.8B |
| Q2 2021 | 2,684 | $144.3B |
| Q1 2021 | 2,693 | $143.2B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Westwood Holdings Group Inc. | 29,219 | $2.45M | 0.02% | −140−0.5% | Reduced |
| Procyon Private Wealth Partners, LLC | 29,217 | $2.45M | 0.15% | +6,681+29.6% | Added |
| Means Investment Co., Inc. | 29,223 | $2.45M | 0.21% | −173−0.6% | Reduced |
| Harvey Investment Co LLC | 29,254 | $2.46M | 0.26% | 00.0% | Unchanged |
| LCNB Corp | 29,316 | $2.46M | 0.86% | −796−2.6% | Reduced |
| Skopos Labs, Inc. | 31,127 | $2.46M | 0.33% | −556−1.8% | Reduced |
| Sax Wealth Advisors, LLC | 29,338 | $2.46M | 0.13% | +12,712+76.5% | Added |
| Blue Fin Capital, Inc. | 29,351 | $2.46M | 0.39% | −586−2.0% | Reduced |
| CenterBook Partners LP | 29,451 | $2.47M | 0.12% | +29,451 | New |
| Allegheny Financial Group LTD | 29,570 | $2.48M | 0.46% | −930−3.0% | Reduced |
| ZWJ Investment Counsel Inc | 29,594 | $2.48M | 0.09% | −869−2.9% | Reduced |
| Mogy Joel R Investment Counsel Inc | 29,623 | $2.49M | 0.14% | 00.0% | Unchanged |
| Beacon Investment Advisory Services, Inc. | 29,668 | $2.49M | 0.10% | −1,438−4.6% | Reduced |
| Walter & Keenan Financial Consulting Co | 29,766 | $2.50M | 0.69% | −4,402−12.9% | Reduced |
| Patten Group, Inc. | 29,784 | $2.50M | 0.49% | −1,129−3.7% | Reduced |
| Broadwater Capital Management LLC | 29,832 | $2.50M | 1.83% | −2,331,669−98.7% | Reduced |
| CWA Asset Management Group, LLC | 29,856 | $2.51M | 0.09% | −7,182−19.4% | Reduced |
| Washington Trust Co | 29,877 | $2.51M | 0.08% | +517+1.8% | Added |
| Keebeck Wealth Management, LLC | 29,613 | $2.51M | 0.30% | −430−1.4% | Reduced |
| Moloney Securities Asset Management, LLC | 29,931 | $2.51M | 0.30% | −2,724−8.3% | Reduced |
| Prestige Wealth Management Group LLC | 29,765 | $2.52M | 0.49% | −105−0.4% | Reduced |
| Generali Investments CEE, investicni spolecnost, a.s. | 30,060 | $2.52M | 0.19% | −668−2.2% | Reduced |
| Counterweight Ventures, LLC | 30,062 | $2.52M | 1.48% | +6,049+25.2% | Added |
| Duncker Streett & Co Inc | 30,085 | $2.53M | 0.44% | −550−1.8% | Reduced |
| A. D. Beadell Investment Counsel, Inc. | 30,099 | $2.53M | 1.72% | −1,033−3.3% | Reduced |
| Cito Capital Group, LLC | 29,864 | $2.53M | 0.73% | +3,514+13.3% | Added |
| Eagle Rock Investment Company, LLC | 30,145 | $2.53M | 0.38% | −638−2.1% | Reduced |
| Strong Tower Advisory Services | 30,159 | $2.53M | 0.48% | +568+1.9% | Added |
| Paradigm Asset Management Co LLC | 30,188 | $2.53M | 0.58% | 00.0% | Unchanged |
| Vaughan Nelson Investment Management, L.P. | 30,250 | $2.54M | 0.02% | 00.0% | Unchanged |
| Rehmann Capital Advisory Group | 30,360 | $2.54M | 0.14% | −2,844−8.6% | Reduced |
| Stolper Co | 30,282 | $2.54M | 0.77% | +1,810+6.4% | Added |
| Stonegate Investment Group, LLC | 30,287 | $2.54M | 0.06% | −336−1.1% | Reduced |
| IFP Advisors, Inc | 30,373 | $2.55M | 0.07% | −624−2.0% | Reduced |
| Herold Advisors, Inc. | 30,410 | $2.55M | 0.59% | −1,156−3.7% | Reduced |
| Lodestone Wealth Management LLC | 30,466 | $2.56M | 1.15% | −1,459−4.6% | Reduced |
| Burling Wealth Partners, LLC | 30,486 | $2.56M | 0.42% | −9,333−23.4% | Reduced |
| Garrett Investment Advisors LLC | 30,656 | $2.57M | 0.21% | +360+1.2% | Added |
| Smartleaf Asset Management LLC | 32,757 | $2.57M | 0.16% | +5,893+21.9% | Added |
| Paradigm Capital Management, LLC | 30,689 | $2.58M | 2.55% | +1,329+4.5% | Added |
| Chilton Capital Management LLC | 30,710 | $2.58M | 0.09% | +595+2.0% | Added |
| Secure Asset Management, LLC | 28,632 | $2.58M | 0.43% | −14,976−34.3% | Reduced |
| Quadrant Private Wealth Management, LLC | 30,458 | $2.58M | 0.47% | −1,103−3.5% | Reduced |
| First National Bank & Trust Co of Newtown | 30,788 | $2.58M | 0.49% | −2,944−8.7% | Reduced |
| Vestmark Advisory Solutions, Inc. | 30,851 | $2.59M | 0.05% | −2,967−8.8% | Reduced |
| Malaga Cove Capital, LLC | 30,981 | $2.60M | 0.94% | +239+0.8% | Added |
| Fred Alger Management, LLC | 30,749 | $2.61M | 0.01% | +10,520+52.0% | Added |
| Essex Savings Bank | 31,195 | $2.62M | 0.59% | −183−0.6% | Reduced |
| Robertson Stephens Wealth Management, LLC | 30,926 | $2.62M | 0.08% | +5,089+19.7% | Added |
| Dakota Wealth Management | 31,311 | $2.63M | 0.05% | −4,634−12.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 31,406 | $2.66M | 0.22% | +2,818+9.9% | Added |
| Berkshire Bank | 31,693 | $2.66M | 0.57% | −2,876−8.3% | Reduced |
| Kentucky Farm Bureau Mutual Insurance Co | 31,718 | $2.66M | 0.66% | 00.0% | Unchanged |
| Main Street Financial Solutions, LLC | 31,809 | $2.67M | 0.17% | +2,287+7.7% | Added |
| Penobscot Investment Management Company, Inc. | 31,834 | $2.67M | 0.21% | +995+3.2% | Added |
| EagleClaw Capital Managment, LLC | 31,843 | $2.67M | 0.37% | +25+0.1% | Added |
| Gould Capital, LLC | 31,926 | $2.68M | 1.66% | +1,006+3.3% | Added |
| McIntyre Freedman & Flynn Investment Advisers Inc | 31,940 | $2.68M | 1.61% | −249−0.8% | Reduced |
| South State Corp. | 32,041 | $2.69M | 0.12% | −3,641−10.2% | Reduced |
| Brooks, Moore & Associates, Inc. | 32,199 | $2.70M | 1.43% | −14,957−31.7% | Reduced |
| Creegan & Nassoura Financial Group, LLC | 32,232 | $2.71M | 1.75% | −4,220−11.6% | Reduced |
| DKRT Investments Corp. | 32,500 | $2.73M | 0.66% | +20,000+160.0% | Added |
| SevenBridge Financial Group, LLC | 29,835 | $2.73M | 0.45% | −7,596−20.3% | Reduced |
| Wynn Capital, LLC | 32,543 | $2.73M | 1.33% | +90+0.3% | Added |
| Shepherd Financial Partners LLC | 32,559 | $2.73M | 0.26% | −1,077−3.2% | Reduced |
| Wills Financial Group LLC | 32,620 | $2.74M | 1.12% | +801+2.5% | Added |
| Brown, Lisle/Cummings, Inc. | 32,660 | $2.74M | 0.70% | −425−1.3% | Reduced |
| Strategy Asset Managers LLC | 32,768 | $2.75M | 0.49% | −553−1.7% | Reduced |
| First National Bank of Omaha | 32,815 | $2.75M | 0.17% | −4,172−11.3% | Reduced |
| Alpha Omega Wealth Management LLC | 32,857 | $2.76M | 0.46% | −80−0.2% | Reduced |
| Investor's Fiduciary Advisor Network, LLC | 32,862 | $2.76M | 0.93% | −223−0.7% | Reduced |
| Jarislowsky, Fraser Ltd | 32,875 | $2.76M | 0.02% | −1,275−3.7% | Reduced |
| Holderness Investments Co | 32,904 | $2.76M | 0.56% | −2,367−6.7% | Reduced |
| Chicago Partners Investment Group LLC | 31,777 | $2.77M | 0.07% | +2,218+7.5% | Added |
| Arvest Investments, Inc. | 32,970 | $2.77M | 0.40% | −7,033−17.6% | Reduced |
| LS Investment Advisors, LLC | 33,083 | $2.78M | 0.39% | −2,368−6.7% | Reduced |
| Cordatus Wealth Management LLC | 33,159 | $2.78M | 0.66% | +15,872+91.8% | Added |
| MainStreet Investment Advisors LLC | 33,316 | $2.80M | 0.38% | −2,401−6.7% | Reduced |
| Angeles Wealth Management, LLC | 33,347 | $2.80M | 0.17% | +2,415+7.8% | Added |
| HBW Advisory Services LLC | 33,565 | $2.82M | 0.32% | +592+1.8% | Added |
| Modern Wealth Management, LLC | 33,675 | $2.83M | 0.06% | +12,788+61.2% | Added |
| SummitTX Capital, L.P. | 33,684 | $2.83M | 0.12% | +10,969+48.3% | Added |
| Jamison Private Wealth Management, Inc. | 33,883 | $2.84M | 0.36% | +4,832+16.6% | Added |
| Cliftonlarsonallen Wealth Advisors, LLC | 33,969 | $2.85M | 0.04% | +13,414+65.3% | Added |
| F/M Investments LLC | 33,990 | $2.85M | 0.11% | +6,745+24.8% | Added |
| Supplemental Annuity Collective Trust of NJ | 34,000 | $2.85M | 0.75% | 00.0% | Unchanged |
| Palisade Asset Management, LLC | 34,123 | $2.86M | 0.27% | −63−0.2% | Reduced |
| Global Financial Private Client, LLC | 34,150 | $2.87M | 1.02% | +148+0.4% | Added |
| Marathon Capital Management | 34,152 | $2.87M | 0.66% | −375−1.1% | Reduced |
| GSB Wealth Management, LLC | 34,202 | $2.87M | 0.65% | −1,442−4.0% | Reduced |
| Boyd Watterson Asset Management LLC | 34,235 | $2.87M | 0.86% | +3,436+11.2% | Added |
| Welch Group, LLC | 34,242 | $2.87M | 0.11% | +956+2.9% | Added |
| Money Concepts Capital Corp | 34,351 | $2.88M | 0.18% | +377+1.1% | Added |
| Foster & Motley Inc | 34,365 | $2.88M | 0.16% | −3,114−8.3% | Reduced |
| Frank, Rimerman Advisors LLC | 34,493 | $2.89M | 0.19% | +5,557+19.2% | Added |
| Mechanics Bank Trust Department | 34,598 | $2.90M | 0.41% | −2,396−6.5% | Reduced |
| DT Investment Partners, LLC | 34,645 | $2.91M | 0.25% | 00.0% | Unchanged |
| St. Louis Financial Planners Asset Management, LLC | 34,661 | $2.91M | 1.88% | +289+0.8% | Added |
| Bellevue Group AG | 34,739 | $2.92M | 0.06% | +6,500+23.0% | Added |
| Arete Wealth Advisors, LLC | 34,747 | $2.92M | 0.18% | +1,347+4.0% | Added |