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 |
|---|---|---|---|---|---|
| Plotkin Financial Advisors, LLC | 10,102 | $1.06M | 0.52% | 00.0% | Unchanged |
| Intellectus Partners, LLC | 10,021 | $1.06M | 0.21% | +536+5.7% | Added |
| First Washington CORP | 10,130 | $1.07M | 0.28% | 00.0% | Unchanged |
| Colonial Trust Co | 10,144 | $1.07M | 0.14% | −2,673−20.9% | Reduced |
| Notis-McConarty Edward | 10,150 | $1.07M | 0.50% | 00.0% | Unchanged |
| Mitchell & Pahl Private Wealth, LLC | 10,151 | $1.07M | 0.44% | −171−1.7% | Reduced |
| Old Mission Investment Co LLC | 10,078 | $1.07M | 0.26% | +1,857+22.6% | Added |
| World Equity Group, Inc. | 10,176 | $1.07M | 0.30% | −186−1.8% | Reduced |
| DeDora Capital, Inc. | 10,182 | $1.07M | 0.25% | −730−6.7% | Reduced |
| FNY Investment Advisers, LLC | 10,200 | $1.07M | 0.31% | +10,200 | New |
| Sapient Capital LLC | 10,037 | $1.07M | 0.02% | +10,037 | New |
| Bank of Jackson Hole Trust | 10,202 | $1.07M | 0.51% | +48+0.5% | Added |
| CVA Family Office, LLC | 10,204 | $1.07M | 0.12% | +425+4.3% | Added |
| Karani Asset Management LLC | 10,220 | $1.08M | 0.94% | −1,019−9.1% | Reduced |
| Intrinsic Value Partners, LLC | 10,267 | $1.08M | 0.81% | −2,918−22.1% | Reduced |
| Austin Private Wealth, LLC | 10,286 | $1.08M | 0.08% | −281−2.7% | Reduced |
| Analyst IMS Investment Management Services Ltd. | 10,298 | $1.08M | 0.03% | +7,733+301.5% | Added |
| Unified Investment Management | 10,324 | $1.09M | 1.10% | +20+0.2% | Added |
| Trust Co of the South | 10,338 | $1.09M | 0.17% | −1,379−11.8% | Reduced |
| Greenwood Capital Associates LLC | 10,346 | $1.09M | 0.12% | +10,346 | New |
| Retirement Planning Co of New England, Inc. | 10,349 | $1.09M | 0.44% | +23+0.2% | Added |
| Prentice Wealth Management LLC | 10,349 | $1.09M | 0.25% | +48+0.5% | Added |
| Fullerton Fund Management Co Ltd. | 10,351 | $1.09M | 0.05% | +10,351 | New |
| Apriem Advisors | 10,367 | $1.09M | 0.10% | −122−1.2% | Reduced |
| Cornerstone Advisory, LLC | 10,368 | $1.09M | 0.10% | −333−3.1% | Reduced |
| Westbourne Investment Advisors, Inc. | 10,386 | $1.09M | 0.30% | +10+0.1% | Added |
| Sage Rhino Capital LLC | 10,399 | $1.09M | 0.21% | −155−1.5% | Reduced |
| Hilltop National Bank | 10,400 | $1.09M | 0.26% | −215−2.0% | Reduced |
| M. Kraus & Co | 10,408 | $1.10M | 0.31% | +25+0.2% | Added |
| Mechanics Financial Corp | 10,416 | $1.10M | 0.40% | +25+0.2% | Added |
| Wall Street Access Asset Management, LLC | 10,449 | $1.10M | 0.25% | −786−7.0% | Reduced |
| FSM Wealth Advisors, LLC | 10,450 | $1.10M | 0.15% | +395+3.9% | Added |
| Klingman & Associates, LLC | 10,508 | $1.11M | 0.05% | +316+3.1% | Added |
| Alhambra Investment Partners LLC | 10,533 | $1.11M | 0.52% | −165−1.5% | Reduced |
| AXA S.A. | 10,567 | $1.11M | 0.53% | −1,819−14.7% | Reduced |
| Silver Oak Securities, Inc | 10,501 | $1.11M | 0.08% | +160+1.5% | Added |
| Wincap Financial LLC | 10,588 | $1.11M | 0.77% | −275−2.5% | Reduced |
| waypoint wealth counsel | 10,591 | $1.11M | 0.41% | +727+7.4% | Added |
| Aviso Wealth Management | 10,593 | $1.12M | 0.47% | −2,310−17.9% | Reduced |
| Payne Capital LLC | 10,637 | $1.12M | 1.14% | +97+0.9% | Added |
| First Command Advisory Services, Inc. | 10,639 | $1.12M | 0.01% | +1,486+16.2% | Added |
| Lee Financial Co | 10,636 | $1.12M | 0.15% | −2,586−19.6% | Reduced |
| First Dallas Securities Inc. | 10,671 | $1.12M | 0.42% | +162+1.5% | Added |
| Ark Wealth Advisors LLC | 10,688 | $1.13M | 1.21% | +10,688 | New |
| CRA Financial Services, LLC | 10,698 | $1.13M | 0.15% | −730−6.4% | Reduced |
| WealthPLAN Partners, LLC | 10,701 | $1.13M | 0.17% | +894+9.1% | Added |
| Nwam LLC | 10,562 | $1.13M | 0.06% | −72−0.7% | Reduced |
| Marble Wealth, LLC | 10,738 | $1.13M | 0.16% | +10,738 | New |
| Twin Tree Management, LP | 10,738 | $1.13M | 0.12% | −104,426−90.7% | Reduced |
| Southeast Asset Advisors Inc. | 10,740 | $1.13M | 0.11% | −2,059−16.1% | Reduced |
| VUB Generali dochodkova spravcovska spolocnost, a.s. | 10,748 | $1.13M | 0.87% | +10,748 | New |
| Patron Partners Advisors, LLC | 10,756 | $1.13M | 0.50% | −273−2.5% | Reduced |
| Pinnacle Holdings, LLC | 10,783 | $1.14M | 0.38% | +297+2.8% | Added |
| Aspetuck Financial Management LLC | 10,814 | $1.14M | 0.76% | +65+0.6% | Added |
| Clean Yield Group | 10,822 | $1.14M | 0.32% | +220+2.1% | Added |
| Lavaca Capital LLC | 10,834 | $1.14M | 0.19% | 00.0% | Unchanged |
| BankPlus Trust Department | 10,857 | $1.14M | 0.30% | 00.0% | Unchanged |
| Redwood Investment Management, LLC | 10,863 | $1.14M | 0.13% | −9,362−46.3% | Reduced |
| Physicians Financial Services, Inc. | 10,860 | $1.14M | 0.31% | −150−1.4% | Reduced |
| Forza Wealth Management, LLC | 10,879 | $1.15M | 0.41% | +236+2.2% | Added |
| JT Stratford LLC | 10,912 | $1.15M | 0.15% | −2,102−16.2% | Reduced |
| North Star Asset Management Inc | 10,912 | $1.15M | 0.05% | −930−7.9% | Reduced |
| MBA Advisors LLC | 10,958 | $1.15M | 0.46% | +1,165+11.9% | Added |
| Penserra Capital Management LLC | 10,971 | $1.15M | 0.01% | +9,000+456.6% | Added |
| Adelphi Trust Co | 10,969 | $1.15M | 0.94% | +10,969 | New |
| Pegasus Asset Management, Inc. | 10,995 | $1.16M | 0.36% | 00.0% | Unchanged |
| City Holding Co | 10,997 | $1.16M | 0.14% | −755−6.4% | Reduced |
| Pullen Investment Management, LLC | 11,029 | $1.16M | 0.61% | −69−0.6% | Reduced |
| Knuff & Co LLC | 11,038 | $1.16M | 0.34% | 00.0% | Unchanged |
| Providence Wealth Advisors, LLC | 10,929 | $1.16M | 0.73% | −200−1.8% | Reduced |
| Zullo Investment Group, Inc. | 11,039 | $1.16M | 0.43% | −119−1.1% | Reduced |
| Wolff Financial Management LLC | 11,084 | $1.17M | 0.26% | +10.0% | Added |
| KC Investment Advisors, LLC | 11,113 | $1.17M | 0.29% | −729−6.2% | Reduced |
| Rayburn West Financial Services LLC | 11,144 | $1.17M | 0.73% | +11,144 | New |
| Meadow Creek Wealth Advisors LLC | 11,150 | $1.17M | 0.75% | −7−0.1% | Reduced |
| Charter Oak Capital Management, LLC | 11,182 | $1.18M | 0.09% | −97−0.9% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 11,183 | $1.18M | 0.30% | +10+0.1% | Added |
| Capital Performance Advisors LLP | 11,186 | $1.18M | 0.08% | +2,534+29.3% | Added |
| London & Capital Asset Management Ltd | 11,190 | $1.18M | 0.01% | +11,190 | New |
| Johnson & White Wealth Management, LLC | 11,227 | $1.18M | 0.51% | +811+7.8% | Added |
| Gilman Hill Asset Management, LLC | 11,227 | $1.18M | 0.19% | +875+8.5% | Added |
| OV Management LLC | 11,239 | $1.18M | 1.02% | 00.0% | Unchanged |
| Elevated Private Wealth, LLC | 11,292 | $1.19M | 1.24% | +11,292 | New |
| AdvisorNet Financial, Inc | 11,296 | $1.19M | 0.06% | −646−5.4% | Reduced |
| WBH Advisory Inc | 11,313 | $1.19M | 0.09% | +1,123+11.0% | Added |
| Spirepoint Private Client, LLC | 11,352 | $1.19M | 0.11% | +358+3.3% | Added |
| Weaver C. Barksdale & Associates, Inc. | 11,355 | $1.20M | 1.25% | −1,989−14.9% | Reduced |
| Abel Hall, LLC | 11,389 | $1.20M | 0.28% | +966+9.3% | Added |
| Wealth Management Associates, Inc. | 11,454 | $1.21M | 0.42% | −432−3.6% | Reduced |
| Truvestments Capital LLC | 11,457 | $1.21M | 0.22% | −746−6.1% | Reduced |
| Diligent Investors, LLC | 11,464 | $1.21M | 0.30% | −350−3.0% | Reduced |
| Raleigh Capital Management Inc. | 11,466 | $1.21M | 0.44% | +6,065+112.3% | Added |
| Intelligence Driven Advisers, LLC | 11,474 | $1.21M | 0.17% | −77−0.7% | Reduced |
| Fragasso Group Inc. | 11,502 | $1.21M | 0.07% | +115+1.0% | Added |
| Woodward Diversified Capital, LLC | 11,521 | $1.21M | 0.56% | −335−2.8% | Reduced |
| Cambient Family Office, LLC | 11,421 | $1.21M | 0.17% | +11,421 | New |
| Meadowbrook Advisors Group, LLC | 11,536 | $1.21M | 0.68% | +11,536 | New |
| Impact Capital Partners LLC | 11,537 | $1.21M | 0.36% | −7−0.1% | Reduced |
| Carlton Hofferkamp & Jenks Wealth Management, LLC | 11,590 | $1.22M | 0.41% | −30−0.3% | Reduced |
| Longfellow Investment Management Co LLC | 11,593 | $1.22M | 0.28% | −7,783−40.2% | Reduced |