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 |
|---|---|---|---|---|---|
| Bonness Enterprises Inc | 69,500 | $8.36M | 3.06% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 69,027 | $8.30M | 0.14% | −2,027−2.9% | Reduced |
| Intesa Sanpaolo S.p.A. | 68,892 | $8.29M | 0.52% | −3,620−5.0% | Reduced |
| Royal Fund Management, LLC | 68,809 | $8.28M | 0.79% | −391−0.6% | Reduced |
| MUFG Securities Americas Inc. | 68,665 | $8.26M | 0.53% | +1,799+2.7% | Added |
| New England Asset Management Inc | 68,367 | $8.22M | 1.05% | +1,042+1.5% | Added |
| Marble Harbor Investment Counsel, LLC | 68,013 | $8.18M | 0.89% | +507+0.8% | Added |
| First American Bank | 67,757 | $8.15M | 0.51% | +1,235+1.9% | Added |
| Summit Global Investments | 67,598 | $8.13M | 0.48% | −3,674−5.2% | Reduced |
| Pallas Capital Advisors LLC | 67,542 | $8.12M | 0.31% | −3,703−5.2% | Reduced |
| Lifeworks Advisors, LLC | 67,492 | $8.12M | 1.04% | −3,016−4.3% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 67,492 | $8.12M | 0.02% | −7,117−9.5% | Reduced |
| Securian Asset Management, Inc | 67,333 | $8.10M | 0.32% | −158−0.2% | Reduced |
| Kovitz Investment Group Partners, LLC | 66,758 | $8.03M | 0.19% | +24,856+59.3% | Added |
| Stablepoint Partners, LLC | 66,669 | $8.02M | 1.19% | −4,768−6.7% | Reduced |
| NewEdge Wealth, LLC | 66,602 | $8.01M | 0.10% | −21,995−24.8% | Reduced |
| Boston Research & Management Inc | 66,572 | $8.01M | 1.87% | +578+0.9% | Added |
| iA Global Asset Management Inc. | 66,560 | $8.01M | 0.11% | +21,288+47.0% | Added |
| Guyasuta Investment Advisors Inc | 66,549 | $8.01M | 0.46% | −286−0.4% | Reduced |
| American Investment Services, Inc. | 66,477 | $8.00M | 1.78% | +10,674+19.1% | Added |
| Financial Security Advisor, Inc. | 65,929 | $7.99M | 1.47% | −626−0.9% | Reduced |
| Sagespring Wealth Partners, LLC | 66,315 | $7.98M | 0.15% | −160−0.2% | Reduced |
| Kentucky Retirement Systems Insurance Trust Fund | 66,309 | $7.98M | 0.54% | 00.0% | Unchanged |
| Roberts Wealth Advisors, LLC | 66,219 | $7.97M | 2.02% | +1,975+3.1% | Added |
| Duncker Streett & Co Inc | 66,212 | $7.96M | 1.51% | +2,925+4.6% | Added |
| Anchor Investment Management, LLC | 65,472 | $7.88M | 0.66% | −1,227−1.8% | Reduced |
| Plimoth Trust Co LLC | 65,039 | $7.82M | 1.75% | −1,375−2.1% | Reduced |
| Hamilton Wealth, LLC | 65,034 | $7.82M | 1.52% | −51,512−44.2% | Reduced |
| Brick & Kyle, Associates | 64,914 | $7.81M | 2.58% | −6,345−8.9% | Reduced |
| Gamco Investors, Inc. Et Al | 64,769 | $7.79M | 0.08% | −204−0.3% | Reduced |
| Sound View Wealth Advisors Group, LLC | 64,516 | $7.76M | 0.53% | +235+0.4% | Added |
| Plato Investment Management Ltd | 64,422 | $7.75M | 0.52% | −3,107−4.6% | Reduced |
| Ameritas Investment Partners, Inc. | 64,435 | $7.75M | 0.24% | −394−0.6% | Reduced |
| Mill Capital Management, LLC | 64,423 | $7.75M | 0.59% | 00.0% | Unchanged |
| Evolve Private Wealth, LLC | 64,340 | $7.74M | 0.41% | +4,325+7.2% | Added |
| Two Sigma Investments, LP | 64,325 | $7.74M | 0.01% | −10,500−14.0% | Reduced |
| Sompo Asset Management Co., Ltd. | 64,270 | $7.73M | 1.42% | +13,305+26.1% | Added |
| Te Ahumairangi Investment Management Ltd | 63,569 | $7.65M | 1.28% | −18,657−22.7% | Reduced |
| Phoenix Holdings Ltd. | 62,785 | $7.62M | 0.07% | −2,021−3.1% | Reduced |
| Platinum Investment Management Ltd | 63,316 | $7.62M | 1.92% | 00.0% | Unchanged |
| Capital Counsel LLC | 63,213 | $7.60M | 0.32% | 00.0% | Unchanged |
| First Citizens Bank & Trust Co | 63,208 | $7.60M | 0.16% | +1,163+1.9% | Added |
| Moneta Group Investment Advisors LLC | 63,052 | $7.58M | 0.06% | +8,047+14.6% | Added |
| Wahed Invest LLC | 62,990 | $7.58M | 0.98% | −3,357−5.1% | Reduced |
| Jessup Wealth Management, Inc | 62,944 | $7.57M | 2.76% | +1,082+1.7% | Added |
| Argyle Capital Management Inc. | 62,816 | $7.56M | 2.46% | −700−1.1% | Reduced |
| Jackson Hole Capital Partners, LLC | 62,790 | $7.55M | 1.25% | −56−0.1% | Reduced |
| Meiji Yasuda Asset Management Co Ltd. | 62,447 | $7.51M | 0.37% | −1,235−1.9% | Reduced |
| Baugh & Associates, LLC | 62,389 | $7.50M | 3.24% | +1,144+1.9% | Added |
| Barbara Oil Co. | 62,295 | $7.49M | 2.89% | 00.0% | Unchanged |
| Meeder Advisory Services, Inc. | 62,281 | $7.49M | 0.31% | +5,747+10.2% | Added |
| Eliot Finkel Investment Counsel, LLC | 62,145 | $7.48M | 4.07% | −115−0.2% | Reduced |
| PFG Investments, LLC | 61,979 | $7.46M | 0.35% | −1,063−1.7% | Reduced |
| Ossiam | 61,499 | $7.40M | 0.13% | +6,114+11.0% | Added |
| XML Financial, LLC | 61,160 | $7.36M | 0.59% | −1,821−2.9% | Reduced |
| Biltmore Family Office, LLC | 60,441 | $7.32M | 1.02% | +1,450+2.5% | Added |
| IHT Wealth Management, LLC | 60,720 | $7.30M | 0.17% | +1,086+1.8% | Added |
| Trust Co of Kansas | 60,523 | $7.28M | 4.02% | −9,641−13.7% | Reduced |
| First American Trust, FSB | 60,244 | $7.25M | 0.49% | +44,246+276.6% | Added |
| Tritonpoint Wealth, LLC | 59,731 | $7.24M | 0.77% | −3,751−5.9% | Reduced |
| Larson Financial Group LLC | 59,707 | $7.18M | 0.23% | +2,967+5.2% | Added |
| Sig Brokerage, LP | 59,556 | $7.16M | 2.03% | +18,158+43.9% | Added |
| TD Private Client Wealth LLC | 59,416 | $7.15M | 0.15% | +20,402+52.3% | Added |
| Inlet Private Wealth, LLC | 59,410 | $7.15M | 1.83% | −10,000−14.4% | Reduced |
| Hudson Value Partners, LLC | 59,197 | $7.12M | 2.13% | +860+1.5% | Added |
| Pure Financial Advisors, Inc. | 58,997 | $7.10M | 0.10% | +1,861+3.3% | Added |
| Resources Management Corp | 58,980 | $7.09M | 0.94% | −630−1.1% | Reduced |
| Hanson & Doremus Investment Management | 58,928 | $7.09M | 0.82% | +337+0.6% | Added |
| Chesley Taft & Associates LLC | 58,833 | $7.08M | 0.30% | −1,652−2.7% | Reduced |
| Cypress Capital Group | 58,740 | $7.07M | 0.79% | +691+1.2% | Added |
| Resources Investment Advisors, LLC. | 58,595 | $7.05M | 0.07% | +5,871+11.1% | Added |
| Integrated Advisors Network LLC | 58,444 | $7.03M | 0.37% | −1,322−2.2% | Reduced |
| Cutler Capital Management, LLC | 58,396 | $7.02M | 1.94% | −136−0.2% | Reduced |
| GLOBALT Investments LLC | 58,226 | $7.00M | 0.25% | −1,191−2.0% | Reduced |
| Texas Yale Capital Corp. | 58,188 | $7.00M | 0.20% | +380+0.7% | Added |
| M Holdings Securities, Inc. | 61,723 | $6.96M | 0.47% | −16,776−21.4% | Reduced |
| CoreCap Advisors, LLC | 57,840 | $6.96M | 0.24% | +45,748+378.3% | Added |
| Rossmore Private Capital | 57,421 | $6.96M | 0.61% | −9,661−14.4% | Reduced |
| North Star Investment Management Corp. | 57,457 | $6.91M | 0.42% | −137−0.2% | Reduced |
| Signaturefd, LLC | 57,399 | $6.90M | 0.11% | +5,990+11.7% | Added |
| Sherman Porfolios, LLC | 57,004 | $6.86M | 0.53% | +2,388+4.4% | Added |
| Fishman Jay A Ltd | 56,886 | $6.84M | 0.61% | −3,330−5.5% | Reduced |
| Williams Jones Wealth Management, LLC. | 56,834 | $6.84M | 0.08% | +1,523+2.8% | Added |
| Trajan Wealth LLC | 56,761 | $6.83M | 0.29% | +694+1.2% | Added |
| Perryman Financial Advisory Inc | 56,615 | $6.81M | 1.02% | +547+1.0% | Added |
| Wendell David Associates Inc | 56,376 | $6.78M | 0.74% | +500+0.9% | Added |
| Trust Co of Virginia | 56,363 | $6.78M | 0.57% | −1,820−3.1% | Reduced |
| Gibraltar Capital Management, Inc. | 56,212 | $6.76M | 1.16% | −25,313−31.0% | Reduced |
| Parallel Advisors, LLC | 56,169 | $6.76M | 0.12% | +3,968+7.6% | Added |
| Bridges Investment Management Inc | 55,851 | $6.72M | 0.09% | −884−1.6% | Reduced |
| New Hampshire Trust | 55,630 | $6.69M | 1.35% | −151−0.3% | Reduced |
| Northwest Bancshares, Inc. | 55,622 | $6.69M | 1.33% | −2,855−4.9% | Reduced |
| Covenant Asset Management, LLC | 55,320 | $6.65M | 1.36% | 00.0% | Unchanged |
| Wedbush Securities Inc | 55,244 | $6.64M | 0.19% | +1,772+3.3% | Added |
| Investment House LLC | 55,229 | $6.64M | 0.35% | −225−0.4% | Reduced |
| Hamilton Capital Partners Inc. | 55,193 | $6.64M | 0.22% | −8,977−14.0% | Reduced |
| Brevan Howard Capital Management LP | 55,029 | $6.62M | 0.07% | −69,117−55.7% | Reduced |
| Buckley Wealth Management, LLC | 54,553 | $6.61M | 1.69% | −500−0.9% | Reduced |
| Cairn Investment Group, Inc. | 54,675 | $6.58M | 3.27% | −280−0.5% | Reduced |
| Courier Capital LLC | 54,593 | $6.57M | 0.37% | +235+0.4% | Added |