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 |
|---|---|---|---|---|---|
| Robertson Stephens Wealth Management, LLC | 92,165 | $9.78M | 0.28% | +61,239+198.0% | Added |
| Envestnet Portfolio Solutions, Inc. | 92,737 | $9.76M | 0.03% | +12,461+15.5% | Added |
| Lowe Brockenbrough & Co Inc | 92,275 | $9.71M | 0.48% | −2,427−2.6% | Reduced |
| LaFleur & Godfrey LLC | 92,201 | $9.71M | 1.18% | −1,117−1.2% | Reduced |
| Bellevue Group AG | 92,117 | $9.70M | 0.18% | +57,378+165.2% | Added |
| Commonwealth Retirement Investments LLC | 92,000 | $9.68M | 3.12% | −1,003−1.1% | Reduced |
| NBT Bank N A | 91,087 | $9.67M | 0.63% | −3,088−3.3% | Reduced |
| Smithfield Trust Co | 91,910 | $9.66M | 0.43% | +1,598+1.8% | Added |
| Empirical Finance, LLC | 91,151 | $9.59M | 0.46% | −5,835−6.0% | Reduced |
| J.W. Cole Advisors, Inc. | 102,786 | $9.59M | 0.23% | −16,943−14.2% | Reduced |
| Schaper Benz & Wise Investment Counsel Inc | 91,060 | $9.58M | 0.69% | −1,515−1.6% | Reduced |
| Walleye Capital LLC | 90,774 | $9.55M | 0.05% | +68,104+300.4% | Added |
| Siemens Fonds Invest GmbH | 89,928 | $9.54M | 0.51% | −8,667−8.8% | Reduced |
| AMG National Trust Bank | 90,499 | $9.53M | 0.22% | +14,226+18.7% | Added |
| Canandaigua National Bank & Trust Co | 90,387 | $9.51M | 0.85% | −1,556−1.7% | Reduced |
| Adalta Capital Management LLC | 89,580 | $9.51M | 4.24% | −600−0.7% | Reduced |
| Apollon Wealth Management, LLC | 90,075 | $9.48M | 0.16% | +791+0.9% | Added |
| Birch Hill Investment Advisors LLC | 89,385 | $9.41M | 0.39% | −4,923−5.2% | Reduced |
| Cutler Investment Counsel LLC | 88,580 | $9.40M | 0.98% | −3,421−3.7% | Reduced |
| Lee Danner & Bass Inc | 89,285 | $9.40M | 0.67% | −3,285−3.5% | Reduced |
| FLC Capital Advisors | 89,165 | $9.39M | 1.73% | +2,558+3.0% | Added |
| NewEdge Wealth, LLC | 88,597 | $9.33M | 0.11% | +24,306+37.8% | Added |
| Addenda Capital Inc. | 87,800 | $9.32M | 0.27% | −9,595−9.9% | Reduced |
| E. Ohman J:or Asset Management AB | 88,457 | $9.31M | 0.22% | +88,457 | New |
| Savant Capital, LLC | 88,272 | $9.29M | 0.05% | +4,784+5.7% | Added |
| Neville Rodie & Shaw Inc | 87,824 | $9.24M | 0.65% | −35,140−28.6% | Reduced |
| Pensionmark Financial Group, LLC | 87,754 | $9.24M | 0.15% | +20,067+29.6% | Added |
| Global Retirement Partners, LLC | 87,713 | $9.23M | 0.16% | +46,016+110.4% | Added |
| Quadrant Capital Group LLC | 87,645 | $9.23M | 0.28% | +991+1.1% | Added |
| Freestone Capital Holdings, LLC | 87,135 | $9.17M | 0.27% | +720+0.8% | Added |
| Carnegie Capital Asset Management, LLC | 86,715 | $9.13M | 0.17% | +11,849+15.8% | Added |
| Azzad Asset Management Inc | 86,710 | $9.13M | 0.90% | +711+0.8% | Added |
| Schonfeld Strategic Advisors LLC | 86,655 | $9.12M | 0.05% | −341,110−79.7% | Reduced |
| North Dakota State Investment Board | 86,432 | $9.10M | 0.34% | +86,432 | New |
| HighPoint Advisor Group LLC | 85,777 | $9.03M | 0.20% | +18,902+28.3% | Added |
| EFG International AG | 85,688 | $9.02M | 0.17% | +85,688 | New |
| Stock Yards Bank & Trust Co | 85,386 | $8.99M | 0.28% | −3,248−3.7% | Reduced |
| Winslow Asset Management Inc | 84,835 | $8.93M | 1.65% | −259−0.3% | Reduced |
| WealthBridge Investment Counsel Inc. | 84,185 | $8.86M | 2.66% | +650+0.8% | Added |
| Rothschild Investment LLC | 83,768 | $8.82M | 0.49% | −3,132−3.6% | Reduced |
| Parsons Capital Management Inc | 83,581 | $8.80M | 0.48% | −14,477−14.8% | Reduced |
| Caisse des Depots Et Consignations | 83,500 | $8.79M | 0.20% | +1,762+2.2% | Added |
| Northern Oak Wealth Management Inc | 83,295 | $8.77M | 1.10% | +3,837+4.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 83,210 | $8.76M | 0.02% | +76,607+1,160.2% | Added |
| Oak Harvest Investment Services | 83,119 | $8.75M | 0.95% | −128−0.2% | Reduced |
| Gladstone Institutional Advisory LLC | 82,826 | $8.72M | 0.33% | −1,574−1.9% | Reduced |
| Daymark Wealth Partners, LLC | 82,470 | $8.68M | 0.28% | −675−0.8% | Reduced |
| Sky Investment Group LLC | 82,407 | $8.67M | 1.43% | +1,019+1.3% | Added |
| Park Avenue Securities LLC | 82,292 | $8.66M | 0.07% | +5,303+6.9% | Added |
| Principle Wealth Partners LLC | 82,266 | $8.66M | 0.49% | +6,354+8.4% | Added |
| Oak Grove Capital LLC | 82,260 | $8.66M | 1.72% | −8,555−9.4% | Reduced |
| Te Ahumairangi Investment Management Ltd | 82,226 | $8.66M | 1.55% | −23,781−22.4% | Reduced |
| Kennedy Capital Management, Inc. | 82,139 | $8.65M | 0.18% | −16,448−16.7% | Reduced |
| Busey Wealth Management | 81,548 | $8.58M | 0.23% | +2,023+2.5% | Added |
| Gibraltar Capital Management, Inc. | 81,525 | $8.58M | 1.46% | −350.0% | Reduced |
| Level Four Advisory Services, LLC | 81,357 | $8.56M | 0.28% | +3,026+3.9% | Added |
| Carret Asset Management, LLC | 81,171 | $8.54M | 0.81% | −770−0.9% | Reduced |
| Tower Research Capital LLC (TRC) | 80,950 | $8.52M | 0.21% | +53,015+189.8% | Added |
| GAMMA Investing LLC | 80,630 | $8.49M | 0.43% | +11,819+17.2% | Added |
| Equitable Holdings, Inc. | 80,381 | $8.46M | 0.06% | −6,825−7.8% | Reduced |
| Beacon Harbor Wealth Advisors, Inc. | 80,202 | $8.44M | 1.87% | +318+0.4% | Added |
| Nixon Peabody Trust Co | 80,097 | $8.43M | 0.64% | −182−0.2% | Reduced |
| Live Oak Private Wealth LLC | 79,929 | $8.41M | 1.15% | +1,094+1.4% | Added |
| GFS Advisors, LLC | 79,462 | $8.36M | 0.99% | −52,355−39.7% | Reduced |
| Northwestern Mutual Investment Management Company, LLC | 79,304 | $8.35M | 0.10% | −306−0.4% | Reduced |
| Perigon Wealth Management, LLC | 79,128 | $8.33M | 0.15% | +3,639+4.8% | Added |
| Mutual Advisors, LLC | 78,853 | $8.30M | 0.18% | +887+1.1% | Added |
| Hennion & Walsh Asset Management, Inc. | 78,846 | $8.30M | 0.29% | +5,369+7.3% | Added |
| M Holdings Securities, Inc. | 78,499 | $8.26M | 0.59% | +78,499 | New |
| CAPROCK Group, Inc. | 77,418 | $8.21M | 0.17% | +14,031+22.1% | Added |
| We Are One Seven, LLC | 77,470 | $8.15M | 0.17% | +142+0.2% | Added |
| Greenleaf Trust | 77,358 | $8.14M | 0.07% | +416+0.5% | Added |
| Thomas Story & Son LLC | 76,878 | $8.09M | 3.01% | +145+0.2% | Added |
| Sunbelt Securities, Inc. | 76,716 | $8.08M | 0.54% | +81+0.1% | Added |
| Clifford Swan Investment Counsel LLC | 75,720 | $7.97M | 0.26% | −951−1.2% | Reduced |
| Clear Trail Advisors, LLC | 75,671 | $7.97M | 1.85% | +75,671 | New |
| Heritage Trust Co | 75,335 | $7.93M | 0.81% | +2,590+3.6% | Added |
| Meeder Asset Management Inc | 75,314 | $7.93M | 0.43% | +67,829+906.2% | Added |
| Two Sigma Investments, LP | 74,825 | $7.88M | 0.01% | −1,894,276−96.2% | Reduced |
| Ledyard National Bank | 74,654 | $7.86M | 0.68% | −2,185−2.8% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 74,609 | $7.85M | 0.02% | −2,950−3.8% | Reduced |
| Chemung Canal Trust Co | 74,055 | $7.80M | 1.54% | −2,283−3.0% | Reduced |
| Boit C F David | 70,283 | $7.77M | 3.36% | 00.0% | Unchanged |
| Capital Analysts, LLC | 73,785 | $7.77M | 0.21% | +6,787+10.1% | Added |
| Augustine Asset Management Inc | 73,653 | $7.75M | 1.55% | +614+0.8% | Added |
| Trust Co of Toledo NA | 73,350 | $7.72M | 0.76% | −441−0.6% | Reduced |
| Financiere des Professionnels - Fonds d,investissement inc. | 73,264 | $7.71M | 0.44% | +9,642+15.2% | Added |
| Intesa Sanpaolo S.p.A. | 72,512 | $7.69M | 0.50% | +72,512 | New |
| Meridian Wealth Management, LLC | 72,747 | $7.66M | 0.27% | −739−1.0% | Reduced |
| Round Hill Asset Management | 72,739 | $7.66M | 4.82% | −2,526−3.4% | Reduced |
| Summit Trail Advisors, LLC | 72,122 | $7.65M | 0.13% | −10,000−12.2% | Reduced |
| W Advisors, LLC | 72,598 | $7.64M | 3.84% | −868−1.2% | Reduced |
| BNP Paribas | 72,531 | $7.64M | 0.22% | −17,542−19.5% | Reduced |
| CBOE Vest Financial, LLC | 72,504 | $7.63M | 0.10% | +16,223+28.8% | Added |
| Sowell Financial Services LLC | 72,363 | $7.62M | 0.28% | +3,366+4.9% | Added |
| Jacobi Capital Management LLC | 72,028 | $7.58M | 0.44% | +449+0.6% | Added |
| Stablepoint Partners, LLC | 71,437 | $7.52M | 1.17% | +808+1.1% | Added |
| Simmons Bank | 71,280 | $7.50M | 0.50% | +691+1.0% | Added |
| Summit Global Investments | 71,272 | $7.50M | 0.44% | −61,360−46.3% | Reduced |
| Brick & Kyle, Associates | 71,259 | $7.50M | 2.66% | −222−0.3% | Reduced |