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 2026
Institutional positions in Merck & Co., Inc. as of Mar 31, 2026. 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
- 3,812
- +195 vs. Q4 2025
- Shares held
- 1.93B
- +269.1M (+16.2%) vs. Q4 2025
- Total value
- $231.9B
- +$56.6B (+32.3%) vs. Q4 2025
- New holders
- 316
- 1,466 more added
- Sold out
- 121
- 1,594 more reduced
57 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Fairfax Financial Holdings LtdSuperinvestorFairfax Financial | 172,900 | $20.8M | 1.07% | 00.0% | Unchanged |
| Woodmont Investment Counsel LLC | 172,439 | $20.7M | 1.28% | +1,932+1.1% | Added |
| Forbes J M & Co LLP | 171,751 | $20.7M | 1.75% | +784+0.5% | Added |
| Cheviot Value Management, LLC | 171,470 | $20.6M | 2.07% | +1,734+1.0% | Added |
| Nemes Rush Group LLC | 170,964 | $20.6M | 1.96% | −11,111−6.1% | Reduced |
| Stamos Capital Partners, L.P. | 170,384 | $20.5M | 3.20% | −16,421−8.8% | Reduced |
| Blackhill Capital Inc | 168,857 | $20.3M | 1.05% | 00.0% | Unchanged |
| Empower Advisory Group, LLC | 168,610 | $20.3M | 0.05% | −30,301−15.2% | Reduced |
| Cadinha & Co LLC | 166,864 | $20.1M | 3.74% | −85,160−33.8% | Reduced |
| Benjamin Edwards Inc | 164,675 | $19.8M | 0.20% | −307,869−65.2% | Reduced |
| Bourgeon Capital Management LLC | 162,967 | $19.6M | 3.41% | −1,389−0.8% | Reduced |
| JB Capital LLC | 162,408 | $19.5M | 0.79% | +25,139+18.3% | Added |
| Old National Bancorp | 161,744 | $19.5M | 0.33% | −847−0.5% | Reduced |
| One Capital Management, LLC | 160,540 | $19.3M | 0.53% | +2,364+1.5% | Added |
| First Horizon Corp | 160,464 | $19.3M | 0.81% | +44,269+38.1% | Added |
| Kimelman & Baird, LLC | 160,179 | $19.3M | 1.59% | 00.0% | Unchanged |
| Saturna Capital CORP | 157,451 | $18.9M | 0.27% | +16,425+11.6% | Added |
| Talbot Financial, LLC | 157,177 | $18.9M | 1.59% | +2,107+1.4% | Added |
| Union Bancaire Privee, UBP SA | 106,562 | $18.8M | 0.34% | −179,007−62.7% | Reduced |
| First Manhattan Co | 154,467 | $18.7M | 0.05% | −2,110−1.3% | Reduced |
| Ar Asset Management Inc | 155,220 | $18.7M | 3.61% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 154,242 | $18.6M | 0.51% | −6,064−3.8% | Reduced |
| Norinchukin Bank, The | 153,343 | $18.4M | 0.22% | −1,077−0.7% | Reduced |
| Parthenon LLC | 153,062 | $18.4M | 2.10% | −679−0.4% | Reduced |
| Edgar Lomax Co | 152,850 | $18.4M | 1.31% | −205,645−57.4% | Reduced |
| Clearstead Advisors, LLC | 152,132 | $18.3M | 0.17% | +41,778+37.9% | Added |
| Skba Capital Management LLC | 151,872 | $18.3M | 2.51% | 00.0% | Unchanged |
| Fisher Funds Management LTD | 151,132 | $18.2M | 0.53% | −39,106−20.6% | Reduced |
| Impax Asset Management Group plc | 150,937 | $18.2M | 0.13% | +42,387+39.0% | Added |
| Atlantic Union Bankshares Corp | 150,800 | $18.1M | 0.35% | −42,738−22.1% | Reduced |
| Stonebridge Capital Advisors LLC | 150,773 | $18.1M | 1.27% | −3,981−2.6% | Reduced |
| Mizuho Securities USA LLC | 150,049 | $18.0M | 0.43% | −30,676−17.0% | Reduced |
| Central Securities Corp | 150,000 | $18.0M | 1.49% | 00.0% | Unchanged |
| CCM Investment Advisers LLC | 149,542 | $18.0M | 1.72% | −3,198−2.1% | Reduced |
| Summit Financial, LLC | 148,433 | $18.0M | 0.23% | +10,688+7.8% | Added |
| ABN AMRO Bank N.V. | 147,377 | $17.9M | 0.19% | −44,434−23.2% | Reduced |
| Crawford Investment Counsel Inc | 148,066 | $17.8M | 0.30% | −4,603−3.0% | Reduced |
| Panagora Asset Management Inc | 147,569 | $17.8M | 0.07% | −557,873−79.1% | Reduced |
| Arkadios Wealth Advisors | 146,131 | $17.6M | 0.29% | +5,129+3.6% | Added |
| United Capital Financial Advisers, LLC | 145,312 | $17.5M | 0.11% | −3,591−2.4% | Reduced |
| Fundamentun, LLC | 144,783 | $17.4M | 0.70% | +9,502+7.0% | Added |
| ExodusPoint Capital Management, LP | 144,655 | $17.4M | 0.17% | −17,252−10.7% | Reduced |
| AE Wealth Management LLC | 144,082 | $17.3M | 0.09% | −8,425−5.5% | Reduced |
| Davy Global Fund Management Ltd | 143,523 | $17.3M | 1.31% | +2,957+2.1% | Added |
| Advisory Services Network, LLC | 143,304 | $17.2M | 0.23% | +6,776+5.0% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 143,224 | $17.2M | 0.26% | +143,224 | New |
| LMCG Investments, LLC | 142,965 | $17.2M | 1.02% | +440+0.3% | Added |
| HRT Financial LP | 142,729 | $17.2M | 0.04% | −470,027−76.7% | Reduced |
| Equitable Holdings, Inc. | 154,824 | $17.2M | 0.11% | +74,443+92.6% | Added |
| Bright Rock Capital Management, LLC | 142,000 | $17.1M | 3.38% | 00.0% | Unchanged |
| Hartford Investment Management Co | 141,501 | $17.0M | 0.54% | −1,879−1.3% | Reduced |
| Tokio Marine Asset Management Co Ltd | 139,552 | $16.8M | 0.60% | −2,941−2.1% | Reduced |
| Vident Advisory, LLC | 139,324 | $16.8M | 0.14% | +10,064+7.8% | Added |
| Bollard Group LLC | 138,765 | $16.7M | 0.51% | +6,691+5.1% | Added |
| Montag A & Associates Inc | 137,790 | $16.7M | 0.78% | −3,916−2.8% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 137,612 | $16.6M | 0.63% | +10,150+8.0% | Added |
| U.S. Capital Wealth Advisors, LLC | 137,497 | $16.5M | 0.42% | +75,219+120.8% | Added |
| Franklin Street Advisors Inc | 137,340 | $16.5M | 1.01% | −5,201−3.6% | Reduced |
| Blue Sparrow, LLC | 136,900 | $16.5M | 0.28% | −800−0.6% | Reduced |
| Steel Peak Wealth Management LLC | 135,983 | $16.5M | 0.52% | −54,538−28.6% | Reduced |
| Eagle Global Advisors LLC | 136,864 | $16.5M | 0.59% | −1,725−1.2% | Reduced |
| Snowden Capital Advisors LLC | 135,191 | $16.4M | 0.44% | −17,784−11.6% | Reduced |
| Dodge & Cox | 136,050 | $16.4M | 0.01% | −2,155−1.6% | Reduced |
| Noesis Capital Mangement Corp | 135,684 | $16.3M | 2.41% | +3,771+2.9% | Added |
| Picton Mahoney Asset Management | 135,203 | $16.3M | 0.17% | +135,203 | New |
| Kingsview Wealth Management, LLC | 134,751 | $16.2M | 0.22% | −22,205−14.1% | Reduced |
| Coldstream Capital Management Inc | 133,666 | $16.1M | 0.20% | +11,824+9.7% | Added |
| Metis Global Partners, LLC | 133,464 | $16.1M | 0.39% | −4,207−3.1% | Reduced |
| Bragg Financial Advisors, Inc | 133,013 | $16.0M | 0.51% | −13,443−9.2% | Reduced |
| Washington Trust Bank | 132,592 | $15.9M | 1.18% | −15,643−10.6% | Reduced |
| Azimuth Capital Investment Management LLC | 132,533 | $15.9M | 0.60% | −3,285−2.4% | Reduced |
| Badgley Phelps Wealth Managers, LLC | 131,499 | $15.9M | 0.32% | +11,837+9.9% | Added |
| Drexel Morgan & Co. | 132,292 | $15.9M | 2.33% | 00.0% | Unchanged |
| Wescott Financial Advisory Group, LLC | 132,124 | $15.9M | 1.39% | −10,208−7.2% | Reduced |
| Los Angeles Capital Management LLC | 131,751 | $15.8M | 0.06% | −3,715,117−96.6% | Reduced |
| Wesleyan Assurance Society | 131,371 | $15.8M | 0.93% | −7,000−5.1% | Reduced |
| Achmea Investment Management B.V. | 131,277 | $15.8M | 0.42% | −48,034−26.8% | Reduced |
| RSM US Wealth Management LLC | 130,110 | $15.8M | 0.19% | +2,179+1.7% | Added |
| NorthCrest Asset Manangement, LLC | 130,205 | $15.7M | 0.49% | −113,995−46.7% | Reduced |
| EFG International AG | 130,704 | $15.7M | 0.34% | +45,016+52.5% | Added |
| Allen Mooney & Barnes Investment Advisors LLC | 130,078 | $15.6M | 2.25% | +105,120+421.2% | Added |
| Bleakley Financial Group, LLC | 129,217 | $15.5M | 0.24% | +2,930+2.3% | Added |
| Park National Corp | 129,003 | $15.5M | 0.47% | +17,678+15.9% | Added |
| QV Investors Inc. | 128,937 | $15.5M | 1.26% | −7,750−5.7% | Reduced |
| Folger Nolan Fleming Douglas Capital Management, Inc | 128,401 | $15.4M | 1.38% | +59,377+86.0% | Added |
| New Age Alpha Advisors, LLC | 127,438 | $15.3M | 0.72% | −119−0.1% | Reduced |
| Goelzer Investment Management, Inc. | 127,005 | $15.3M | 0.74% | −955−0.7% | Reduced |
| Louisiana State Employees Retirement System | 126,500 | $15.2M | 0.27% | −300−0.2% | Reduced |
| Tectonic Advisors LLC | 126,173 | $15.2M | 0.80% | −2,035−1.6% | Reduced |
| Banque Cantonale Vaudoise | 126,173 | $15.2M | 0.57% | +6,268+5.2% | Added |
| American Assets Investment Management, LLC | 125,000 | $15.0M | 1.02% | 00.0% | Unchanged |
| Woodstock Corp | 124,502 | $15.0M | 1.33% | +814+0.7% | Added |
| Maryland State Retirement & Pension System | 124,497 | $15.0M | 0.30% | −1,217−1.0% | Reduced |
| Cohen Klingenstein LLC | 124,194 | $14.9M | 0.48% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 124,118 | $14.9M | 0.13% | +1,051+0.9% | Added |
| Ashton Thomas Private Wealth, LLC | 124,075 | $14.9M | 0.35% | +5,900+5.0% | Added |
| Edge Wealth Management LLC | 123,435 | $14.8M | 2.54% | +329+0.3% | Added |
| SlateStone Wealth, LLC | 122,534 | $14.7M | 1.22% | +3,147+2.6% | Added |
| Farther Finance Advisors, LLC | 121,892 | $14.7M | 0.14% | +24,074+24.6% | Added |
| Intech Investment Management LLC | 122,438 | $14.7M | 0.14% | −40,290−24.8% | Reduced |