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, Q4 2025
Institutional positions in Merck & Co., Inc. as of Dec 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
- 3,674
- +428 vs. Q3 2025
- Shares held
- 1.96B
- +60.6M (+3.2%) vs. Q3 2025
- Total value
- $206.6B
- +$47.2B (+29.6%) vs. Q3 2025
- New holders
- 555
- 1,379 more added
- Sold out
- 127
- 1,404 more reduced
73 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Manning & Napier Advisors LLC | 175,513 | $18.6M | 0.24% | −11,241−6.0% | Reduced |
| ARS Wealth Advisors Group, LLC | 175,370 | $18.5M | 1.66% | +3,898+2.3% | Added |
| Assetmark, Inc | 174,873 | $18.4M | 0.04% | −2,045−1.2% | Reduced |
| Fairfax Financial Holdings LtdSuperinvestorFairfax Financial | 172,900 | $18.2M | 0.87% | 00.0% | Unchanged |
| Cheviot Value Management, LLC | 169,736 | $18.1M | 1.78% | +4,424+2.7% | Added |
| Charter Trust Co | 172,032 | $18.1M | 1.05% | +11,622+7.2% | Added |
| Forbes J M & Co LLP | 170,967 | $18.0M | 1.46% | +1,520+0.9% | Added |
| Woodmont Investment Counsel LLC | 170,507 | $17.9M | 1.13% | +3,189+1.9% | Added |
| Blackhill Capital Inc | 168,857 | $17.8M | 0.91% | 00.0% | Unchanged |
| Grandfield & Dodd, LLC | 168,061 | $17.7M | 1.00% | −16,228−8.8% | Reduced |
| Advisors Capital Management, LLC | 164,685 | $17.3M | 0.20% | +11,121+7.2% | Added |
| Oppenheimer & Co Inc | 164,462 | $17.3M | 0.25% | +3,198+2.0% | Added |
| Bourgeon Capital Management LLC | 164,356 | $17.3M | 2.82% | −2,871−1.7% | Reduced |
| Vestor Capital, LLC | 689 | $17.3M | 1.26% | −5,072−88.0% | Reduced |
| Intech Investment Management LLC | 162,728 | $17.1M | 0.15% | −459,082−73.8% | Reduced |
| Old National Bancorp | 162,591 | $17.1M | 0.28% | −5,869−3.5% | Reduced |
| ExodusPoint Capital Management, LP | 161,907 | $17.0M | 0.19% | +161,907 | New |
| MUFG Securities EMEA plc | 161,752 | $17.0M | 0.20% | −607,057−79.0% | Reduced |
| Massmutual Trust Co FSB | 160,306 | $16.9M | 0.43% | −3,749−2.3% | Reduced |
| Kimelman & Baird, LLC | 160,179 | $16.9M | 1.30% | −2,271−1.4% | Reduced |
| Kentucky Retirement Systems | 158,196 | $16.7M | 0.45% | 00.0% | Unchanged |
| One Capital Management, LLC | 158,176 | $16.6M | 0.50% | +9,843+6.6% | Added |
| Merit Financial Group, LLC | 158,043 | $16.6M | 0.13% | +17,300+12.3% | Added |
| First Manhattan Co | 156,577 | $16.6M | 0.04% | +13,999+9.8% | Added |
| Argent Trust Co | 157,576 | $16.6M | 0.57% | −2,338−1.5% | Reduced |
| Steadfast Capital Management LP | 157,100 | $16.5M | 0.29% | +157,100 | New |
| Kingsview Wealth Management, LLC | 156,956 | $16.5M | 0.24% | −60,214−27.7% | Reduced |
| Loomis Sayles & Co L P | 155,310 | $16.3M | 0.02% | −54,201−25.9% | Reduced |
| Ar Asset Management Inc | 155,220 | $16.3M | 3.34% | −250−0.2% | Reduced |
| Logan Capital Management Inc | 155,114 | $16.3M | 0.69% | −3,703−2.3% | Reduced |
| Talbot Financial, LLC | 155,070 | $16.3M | 1.34% | +945+0.6% | Added |
| Snowden Capital Advisors LLC | 152,975 | $16.3M | 0.42% | +61,004+66.3% | Added |
| Stonebridge Capital Advisors LLC | 154,754 | $16.3M | 1.13% | +1,807+1.2% | Added |
| Norinchukin Bank, The | 154,420 | $16.3M | 0.19% | +7,512+5.1% | Added |
| Parthenon LLC | 153,741 | $16.2M | 1.75% | −421−0.3% | Reduced |
| Ally Financial Inc. | 153,000 | $16.1M | 1.97% | 00.0% | Unchanged |
| CCM Investment Advisers LLC | 152,740 | $16.1M | 1.54% | −4,031−2.6% | Reduced |
| Crawford Investment Counsel Inc | 152,669 | $16.1M | 0.27% | −9,467−5.8% | Reduced |
| AE Wealth Management LLC | 152,507 | $16.1M | 0.09% | −102,481−40.2% | Reduced |
| Skba Capital Management LLC | 151,872 | $16.0M | 2.27% | −13,530−8.2% | Reduced |
| Central Securities Corp | 150,000 | $15.8M | 1.27% | 00.0% | Unchanged |
| Fideuram Asset Management (Ireland) dac | 173,239 | $15.8M | 1.26% | +173,239 | New |
| United Capital Financial Advisers, LLC | 148,903 | $15.7M | 0.09% | +26,911+22.1% | Added |
| Washington Trust Bank | 148,235 | $15.6M | 1.09% | −1,846−1.2% | Reduced |
| Bragg Financial Advisors, Inc | 146,456 | $15.4M | 0.50% | −1,222−0.8% | Reduced |
| Middleton & Co Inc | 145,353 | $15.3M | 1.62% | +2,239+1.6% | Added |
| Hartford Investment Management Co | 143,380 | $15.1M | 0.45% | −2,916−2.0% | Reduced |
| Montag A & Associates Inc | 141,706 | $15.0M | 0.69% | −1,974−1.4% | Reduced |
| Franklin Street Advisors Inc | 142,541 | $15.0M | 0.86% | +117,213+462.8% | Added |
| LMCG Investments, LLC | 142,525 | $15.0M | 0.86% | +18,415+14.8% | Added |
| Tokio Marine Asset Management Co Ltd | 142,493 | $15.0M | 0.52% | −16,364−10.3% | Reduced |
| Wescott Financial Advisory Group, LLC | 142,332 | $15.0M | 1.31% | −13,382−8.6% | Reduced |
| Cornerstone Advisors, LLC | 142,100 | $15.0M | 0.50% | 00.0% | Unchanged |
| Bright Rock Capital Management, LLC | 142,000 | $14.9M | 2.94% | 00.0% | Unchanged |
| Saturna Capital CORP | 141,026 | $14.8M | 0.20% | −4,123−2.8% | Reduced |
| Arkadios Wealth Advisors | 141,002 | $14.8M | 0.29% | +61,036+76.3% | Added |
| Davy Global Fund Management Ltd | 140,566 | $14.8M | 1.02% | −19,153−12.0% | Reduced |
| Redwood Grove Capital, LLC | 139,668 | $14.7M | 4.19% | −6,700−4.6% | Reduced |
| Foster Victor Wealth Advisors, LLC | 135,004 | $14.7M | 0.86% | +4,772+3.7% | Added |
| Leonteq Securities AG | 138,929 | $14.6M | 0.78% | −6,993−4.8% | Reduced |
| Summit Financial, LLC | 137,745 | $14.6M | 0.21% | +17,528+14.6% | Added |
| Eagle Global Advisors LLC | 138,589 | $14.6M | 0.54% | −1,487−1.1% | Reduced |
| Wesleyan Assurance Society | 138,371 | $14.6M | 0.84% | +2,000+1.5% | Added |
| Dodge & Cox | 138,205 | $14.5M | 0.01% | −16,070−10.4% | Reduced |
| Blue Sparrow, LLC | 137,700 | $14.5M | 0.27% | +137,700 | New |
| Metis Global Partners, LLC | 137,671 | $14.5M | 0.34% | −4,967−3.5% | Reduced |
| JB Capital LLC | 137,269 | $14.4M | 0.59% | +9,354+7.3% | Added |
| QV Investors Inc. | 136,687 | $14.4M | 1.18% | −4,050−2.9% | Reduced |
| Advisory Services Network, LLC | 136,528 | $14.4M | 0.20% | +18,462+15.6% | Added |
| Azimuth Capital Investment Management LLC | 135,818 | $14.3M | 0.51% | −1,659−1.2% | Reduced |
| Buck Wealth Strategies, LLC | 135,392 | $14.3M | 1.81% | +6,431+5.0% | Added |
| Fundamentun, LLC | 135,281 | $14.2M | 0.57% | +6,952+5.4% | Added |
| Triglav Skladi, D.O.O. | 134,819 | $14.2M | 0.90% | +691+0.5% | Added |
| Drexel Morgan & Co. | 132,292 | $13.9M | 2.18% | 00.0% | Unchanged |
| Bollard Group LLC | 132,074 | $13.9M | 0.37% | −41,293−23.8% | Reduced |
| Noesis Capital Mangement Corp | 131,913 | $13.9M | 2.01% | +2,882+2.2% | Added |
| GAM Holding AG | 130,615 | $13.7M | 0.88% | +7,714+6.3% | Added |
| Laird Norton Trust Company, LLC | 129,358 | $13.7M | 0.29% | +129,358 | New |
| Rodgers Brothers Inc. | 130,316 | $13.7M | 1.64% | −2,970−2.2% | Reduced |
| Vident Advisory, LLC | 129,260 | $13.6M | 0.13% | +9,578+8.0% | Added |
| RSM US Wealth Management LLC | 127,931 | $13.6M | 0.17% | +8,554+7.2% | Added |
| Tectonic Advisors LLC | 128,208 | $13.5M | 0.71% | +3,258+2.6% | Added |
| Goelzer Investment Management, Inc. | 127,960 | $13.5M | 0.62% | +964+0.8% | Added |
| Jane Street Group, LLC | 127,687 | $13.4M | 0.02% | −523,397−80.4% | Reduced |
| New Age Alpha Advisors, LLC | 127,557 | $13.4M | 0.58% | −28,212−18.1% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 127,462 | $13.4M | 0.57% | −14,857−10.4% | Reduced |
| Bokf, NA | 127,249 | $13.4M | 0.20% | −28,321−18.2% | Reduced |
| Atalanta Sosnoff Capital, LLC | 126,960 | $13.4M | 0.26% | +126,960 | New |
| Louisiana State Employees Retirement System | 126,800 | $13.3M | 0.23% | −4,300−3.3% | Reduced |
| Caption Management, LLC | 126,500 | $13.3M | 0.59% | +121,899+2,649.4% | Added |
| Gulf International Bank (UK) Ltd | 126,344 | $13.3M | 0.43% | 00.0% | Unchanged |
| Bleakley Financial Group, LLC | 126,287 | $13.3M | 0.23% | +54,840+76.8% | Added |
| Bartlett & Co. Wealth Management LLC | 124,785 | $13.2M | 0.17% | −8,651−6.5% | Reduced |
| Maryland State Retirement & Pension System | 125,714 | $13.2M | 0.27% | 00.0% | Unchanged |
| American Assets Investment Management, LLC | 125,000 | $13.2M | 0.91% | 00.0% | Unchanged |
| Cohen Klingenstein LLC | 124,194 | $13.1M | 0.40% | 00.0% | Unchanged |
| Brevan Howard Capital Management LP | 124,146 | $13.1M | 0.25% | +31,029+33.3% | Added |
| Woodstock Corp | 123,688 | $13.0M | 1.12% | +198+0.2% | Added |
| Monarch Capital Management Inc | 122,866 | $13.0M | 3.20% | −476−0.4% | Reduced |
| Cullen Investment Group, Ltd. | 117,623 | $13.0M | 1.69% | −11,693−9.0% | Reduced |