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 |
|---|---|---|---|---|---|
| LBMC Investment Advisors, LLC | 9,060 | $760.4K | 0.05% | +274+3.1% | Added |
| Connecticut Wealth Management, LLC | 9,099 | $763.7K | 0.03% | −403−4.2% | Reduced |
| Capital Advisors Inc | 9,114 | $765.0K | 0.01% | +2,806+44.5% | Added |
| Rogco, LP | 9,116 | $765.1K | 0.27% | −37−0.4% | Reduced |
| Souders Financial Advisors | 9,118 | $765.2K | 0.09% | +3,234+55.0% | Added |
| Compass Capital Corp | 8,520 | $765.6K | 0.33% | 00.0% | Unchanged |
| Abacus Wealth Partners, LLC | 9,124 | $765.8K | 0.11% | +43+0.5% | Added |
| Trustco Bank Corp N Y | 9,131 | $766.4K | 0.69% | −100−1.1% | Reduced |
| First Command Advisory Services, Inc. | 9,153 | $768.2K | 0.01% | −297−3.1% | Reduced |
| Cypress Capital Advisors, LLC | 9,170 | $769.6K | 0.44% | −429−4.5% | Reduced |
| Alliance Wealth Management Group | 9,201 | $772.2K | 0.17% | +76+0.8% | Added |
| Towercrest Capital Management | 9,201 | $772.2K | 0.12% | +76+0.8% | Added |
| First National Bank of Mount Dora, Trust Investment Services | 9,205 | $772.6K | 0.17% | −5,087−35.6% | Reduced |
| SNS Financial Group, LLC | 9,159 | $776.1K | 0.07% | −79−0.9% | Reduced |
| Caldwell Sutter Capital, Inc. | 9,258 | $777.0K | 0.33% | +2,035+28.2% | Added |
| Great Diamond Partners, LLC | 9,259 | $777.1K | 0.15% | −26−0.3% | Reduced |
| Sterling Investment Counsel, LLC | 9,262 | $777.4K | 0.25% | +3,276+54.7% | Added |
| Main Street Research LLC | 9,270 | $778.0K | 0.04% | +302+3.4% | Added |
| Sara-Bay Financial | 9,284 | $779.2K | 0.22% | −103−1.1% | Reduced |
| Shore Point Advisors, LLC | 9,297 | $780.3K | 0.35% | 00.0% | Unchanged |
| Full Sail Capital, LLC | 9,308 | $781.2K | 0.04% | +2,942+46.2% | Added |
| Ames National Corp | 9,314 | $781.7K | 0.46% | 00.0% | Unchanged |
| Reliant Investment Partners, LLC | 8,775 | $782.6K | 0.61% | +11+0.1% | Added |
| Investors Research Corp | 9,325 | $782.6K | 0.14% | +120+1.3% | Added |
| Blodgett Wealth Advisors, LLC | 9,330 | $783.0K | 0.57% | +20.0% | Added |
| KPP Advisory Services LLC | 9,354 | $785.0K | 0.12% | −1,831−16.4% | Reduced |
| Quotient Wealth Partners, LLC | 9,437 | $792.0K | 0.02% | +734+8.4% | Added |
| BridgePort Financial Solutions, LLC | 9,437 | $792.1K | 0.21% | +1,906+25.3% | Added |
| Crumly & Associates Inc. | 9,442 | $792.5K | 0.17% | +1,520+19.2% | Added |
| Diversified Enterprises, LLC | 9,475 | $795.3K | 0.05% | +89+0.9% | Added |
| TCI Wealth Advisors, Inc. | 9,490 | $796.5K | 0.05% | −87−0.9% | Reduced |
| Alerus Financial NA | 9,492 | $796.7K | 0.04% | −320−3.3% | Reduced |
| Crescent Grove Advisors, LLC | 9,456 | $800.3K | 0.08% | +1,155+13.9% | Added |
| GeoWealth Management, LLC | 9,561 | $802.5K | 0.03% | −111−1.1% | Reduced |
| Intellectus Partners, LLC | 9,485 | $803.6K | 0.16% | +756+8.7% | Added |
| Farmers National Bank | 9,591 | $805.0K | 0.19% | −1,751−15.4% | Reduced |
| Round Rock Advisors, LLC | 9,600 | $805.7K | 0.13% | −16−0.2% | Reduced |
| Adirondack Trust Co | 9,610 | $806.5K | 0.27% | −218−2.2% | Reduced |
| Sterling Capital Management LLC | 9,618 | $807.2K | 0.01% | +107+1.1% | Added |
| Crewe Advisors LLC | 9,627 | $808.0K | 0.08% | −163−1.7% | Reduced |
| IMS Capital Management | 9,632 | $808.4K | 0.37% | −1,479−13.3% | Reduced |
| Frisch Financial Group, Inc. | 9,555 | $809.7K | 0.19% | +396+4.3% | Added |
| Pinnacle West Asset Management, Inc. | 9,645 | $810.0K | 0.52% | +225+2.4% | Added |
| Relyea Zuckerberg Hanson LLC | 9,695 | $813.7K | 0.09% | −65−0.7% | Reduced |
| Financial Security Advisor, Inc. | 9,618 | $814.0K | 0.17% | +2,934+43.9% | Added |
| Argentarii, LLC | 9,723 | $816.0K | 0.35% | +97+1.0% | Added |
| Paulson Wealth Management Inc. | 9,725 | $816.2K | 0.19% | −967−9.0% | Reduced |
| Lafayette Investments, Inc. | 9,734 | $817.0K | 0.16% | −662−6.4% | Reduced |
| Lederer & Associates Investment Counsel | 9,733 | $817.0K | 0.53% | −689−6.6% | Reduced |
| Corundum Group, Inc. | 9,744 | $817.8K | 0.34% | +123+1.3% | Added |
| CVA Family Office, LLC | 9,779 | $820.7K | 0.11% | +304+3.2% | Added |
| Financial Engines Advisors L.L.C. | 9,783 | $821.1K | 0.00% | +125+1.3% | Added |
| MBA Advisors LLC | 9,793 | $821.9K | 0.35% | +2,203+29.0% | Added |
| WealthPLAN Partners, LLC | 9,807 | $823.1K | 0.12% | +680+7.5% | Added |
| Stone Point Wealth LLC | 9,826 | $824.7K | 0.23% | −5,410−35.5% | Reduced |
| Coston, McIsaac & Partners | 9,859 | $827.0K | 0.20% | +43+0.4% | Added |
| Accredited Investors Inc. | 9,858 | $827.4K | 0.05% | +19+0.2% | Added |
| waypoint wealth counsel | 9,864 | $827.9K | 0.33% | +1,055+12.0% | Added |
| Waverton Investment Management Ltd | 9,891 | $830.0K | 0.01% | 00.0% | Unchanged |
| Blume Capital Management, Inc. | 9,904 | $831.2K | 0.16% | +7,574+325.1% | Added |
| Davis Investment Partners, LLC | 9,224 | $831.4K | 0.28% | −801−8.0% | Reduced |
| Kentucky Trust Co | 9,914 | $832.1K | 0.45% | −50−0.5% | Reduced |
| Everpar Advisors LLC | 9,924 | $832.9K | 0.33% | −315−3.1% | Reduced |
| Guerra Pan Advisors, LLC | 9,926 | $833.1K | 0.50% | −765−7.2% | Reduced |
| Baxter Bros Inc | 9,927 | $833.2K | 0.10% | −645−6.1% | Reduced |
| Empirical Asset Management, LLC | 12,703 | $834.4K | 0.23% | +898+7.6% | Added |
| Patriot Investment Management Inc. | 9,945 | $834.7K | 0.05% | −137−1.4% | Reduced |
| Spirit of America Management Corp | 9,950 | $835.1K | 0.17% | −3,300−24.9% | Reduced |
| Patriot Financial Group Insurance Agency, LLC | 9,959 | $835.9K | 0.11% | −4,744−32.3% | Reduced |
| Guardian Wealth Advisors, LLC | 9,960 | $836.0K | 0.05% | +16+0.2% | Added |
| Hickory Point Bank & Trust | 9,965 | $836.4K | 0.63% | −203−2.0% | Reduced |
| Acorn Financial Advisory Services Inc | 10,001 | $839.4K | 0.13% | +42+0.4% | Added |
| GTS Securities LLC | 10,033 | $842.1K | 0.03% | −2,852−22.1% | Reduced |
| Graybill Bartz & Assoc Ltd | 10,047 | $843.2K | 0.26% | 00.0% | Unchanged |
| FSM Wealth Advisors, LLC | 10,055 | $843.9K | 0.12% | +1,188+13.4% | Added |
| CoreFirst Bank & Trust | 10,098 | $847.5K | 0.46% | +185+1.9% | Added |
| Plotkin Financial Advisors, LLC | 10,102 | $847.9K | 0.42% | 00.0% | Unchanged |
| First Washington CORP | 10,130 | $850.2K | 0.23% | 00.0% | Unchanged |
| Notis-McConarty Edward | 10,150 | $851.9K | 0.40% | −200−1.9% | Reduced |
| Bank of Jackson Hole Trust | 10,154 | $852.2K | 0.43% | +741+7.9% | Added |
| Forefront Wealth Management Inc. | 10,162 | $852.9K | 0.63% | 00.0% | Unchanged |
| WBH Advisory Inc | 10,190 | $855.2K | 0.07% | −408−3.8% | Reduced |
| Klingman & Associates, LLC | 10,192 | $855.4K | 0.04% | +408+4.2% | Added |
| Allen Capital Group, LLC | 10,245 | $859.9K | 0.08% | −110−1.1% | Reduced |
| Hamilton Point Investment Advisors, LLC | 10,150 | $860.1K | 0.13% | 00.0% | Unchanged |
| Kidder Stephen W | 10,254 | $860.6K | 0.25% | +1,475+16.8% | Added |
| Aureus Asset Management, LLC | 10,274 | $862.3K | 0.06% | −1,707−14.2% | Reduced |
| QTR Family Wealth, LLC | 10,279 | $862.7K | 0.41% | +3,945+62.3% | Added |
| Foster Dykema Cabot & Partners, LLC | 10,197 | $864.0K | 0.06% | +779+8.3% | Added |
| Prentice Wealth Management LLC | 10,301 | $864.6K | 0.21% | +891+9.5% | Added |
| Unified Investment Management | 10,304 | $864.9K | 0.86% | +139+1.4% | Added |
| Ridgecrest Wealth Partners, LLC | 10,316 | $865.8K | 0.39% | +10.0% | Added |
| Mitchell & Pahl Private Wealth, LLC | 10,322 | $866.3K | 0.36% | −77−0.7% | Reduced |
| Retirement Planning Co of New England, Inc. | 10,326 | $866.7K | 0.35% | +388+3.9% | Added |
| Silver Oak Securities, Inc | 10,341 | $867.9K | 0.06% | +1,638+18.8% | Added |
| Stonegate Management LLC | 10,245 | $868.2K | 0.58% | +10,245 | New |
| Gries Financial LLC | 10,346 | $868.3K | 0.14% | +965+10.3% | Added |
| Gilman Hill Asset Management, LLC | 10,352 | $868.9K | 0.14% | +14+0.1% | Added |
| Lipe & Dalton | 10,369 | $870.0K | 0.43% | −297−2.8% | Reduced |
| Westbourne Investment Advisors, Inc. | 10,376 | $870.9K | 0.24% | −35−0.3% | Reduced |