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, Q3 2025
Institutional positions in Merck & Co., Inc. as of Sep 30, 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
- 3,319
- +42 vs. Q2 2025
- Shares held
- 1.90B
- −25.7M (−1.3%) vs. Q2 2025
- Total value
- $159.8B
- +$6.99B (+4.6%) vs. Q2 2025
- New holders
- 191
- 1,361 more added
- Sold out
- 149
- 1,427 more reduced
60 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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 | 3,502 | $221.8B |
| Q2 2024 | 3,558 | $242.3B |
| Q1 2024 | 3,547 | $256.9B |
| Q4 2023 | 3,444 | $211.6B |
| Q3 2023 | 3,222 | $197.7B |
| Q2 2023 | 3,262 | $222.8B |
| Q1 2023 | 3,188 | $205.1B |
| Q4 2022 | 3,244 | $212.2B |
| Q3 2022 | 2,997 | $162.7B |
| Q2 2022 | 3,020 | $171.5B |
| Q1 2022 | 2,962 | $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, Q3 2025
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Verum Partners LLC | 3,312 | $277.9K | 0.06% | −238−6.7% | Reduced |
| One Day In July LLC | 3,315 | $278.2K | 0.02% | −48−1.4% | Reduced |
| Pzena Investment Management LLC | 3,324 | $279.0K | 0.00% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 3,346 | $280.8K | 0.00% | −48,795−93.6% | Reduced |
| Hemington Wealth Management | 3,358 | $281.0K | 0.04% | +239+7.7% | Added |
| Fortitude Advisory Group L.L.C. | 3,348 | $281.0K | 0.15% | −13−0.4% | Reduced |
| Genesis Wealth Advisors, LLC | 3,349 | $281.1K | 0.20% | 00.0% | Unchanged |
| Intergy Private Wealth, LLC | 3,349 | $281.1K | 0.09% | +403+13.7% | Added |
| Mosaic Family Wealth Partners, LLC | 3,578 | $281.2K | 0.03% | +92+2.6% | Added |
| Sterling Wealth Management, Inc. | 3,350 | $281.2K | 0.09% | −80−2.3% | Reduced |
| OneAscent Family Office, LLC | 3,350 | $281.2K | 0.23% | +253+8.2% | Added |
| Northwest Quadrant Wealth Management, LLC | 3,363 | $282.3K | 0.06% | +12+0.4% | Added |
| Values Added Financial LLC | 3,377 | $283.4K | 0.13% | +243+7.8% | Added |
| Boreal Capital Management LLC | 3,352 | $284.1K | 0.23% | +53+1.6% | Added |
| Voya Financial Advisors, Inc. | 3,619 | $284.4K | 0.03% | −464−11.4% | Reduced |
| MBE Wealth Management, LLC | 3,390 | $284.5K | 0.12% | −117−3.3% | Reduced |
| Security National Bank of Sioux City Iowa | 3,402 | $285.5K | 0.19% | +119+3.6% | Added |
| Symmetry Partners, LLC | 3,403 | $285.6K | 0.03% | +3,403 | New |
| Iowa State Bank | 3,404 | $285.7K | 0.05% | −24,872−88.0% | Reduced |
| High Falls Advisors, Inc | 3,405 | $285.7K | 0.06% | −62−1.8% | Reduced |
| Post Resch Tallon Group Inc. | 3,412 | $286.4K | 0.25% | −17−0.5% | Reduced |
| Mainstay Capital Management LLC | 3,414 | $286.5K | 0.03% | −3,292−49.1% | Reduced |
| Cornerstone Planning Group LLC | 3,322 | $286.6K | 0.05% | +420+14.5% | Added |
| Comprehensive Financial Consultants Institutional, Inc. | 3,415 | $286.6K | 0.09% | −7,356−68.3% | Reduced |
| Kennedy Investment Group | 3,416 | $286.7K | 0.11% | −154−4.3% | Reduced |
| Zions Bancorporation, National Association | 3,425 | $287.5K | 0.01% | −2,166−38.7% | Reduced |
| Laraway Financial Inc | 3,443 | $288.9K | 0.20% | +301+9.6% | Added |
| Ballast, Inc. | 3,448 | $289.4K | 0.07% | 00.0% | Unchanged |
| Accuvest Global Advisors | 3,454 | $290.0K | 0.18% | +701+25.5% | Added |
| Harbour Trust & Investment Management Co | 3,457 | $290.1K | 0.03% | −1,468−29.8% | Reduced |
| Arlington Trust Co LLC | 3,460 | $290.4K | 0.05% | +50+1.5% | Added |
| a16z Perennial Management, L.P. | 3,462 | $290.6K | 0.02% | +3,462 | New |
| One Charles Private Wealth Services, LLC | 3,464 | $290.7K | 0.08% | +111+3.3% | Added |
| Argent Capital Management LLC | 3,475 | $291.7K | 0.01% | 00.0% | Unchanged |
| Strategent Financial, LLC | 3,475 | $291.7K | 0.21% | 00.0% | Unchanged |
| Adamsbrown Wealth Consultants LLC | 3,475 | $291.7K | 0.08% | +80+2.4% | Added |
| Aspen Grove Capital, LLC | 3,442 | $292.2K | 0.05% | −1,553−31.1% | Reduced |
| New World Advisors LLC | 3,482 | $292.2K | 0.05% | +500+16.8% | Added |
| Instrumental Wealth, LLC | 3,388 | $292.4K | 0.21% | +182+5.7% | Added |
| RTD Financial Advisors, Inc. | 3,485 | $292.5K | 0.04% | +9+0.3% | Added |
| Ironwood Investment Management LLC | 3,494 | $293.3K | 0.13% | 00.0% | Unchanged |
| Petix & Botte Co | 3,496 | $293.4K | 0.07% | 00.0% | Unchanged |
| Alexander Labrunerie & Co., Inc. | 3,498 | $293.6K | 0.11% | −226−6.1% | Reduced |
| BlackDiamond Wealth Management Inc. | 3,510 | $294.6K | 0.16% | +457+15.0% | Added |
| Ullmann Financial Group, Inc. | 3,511 | $294.6K | 0.03% | −95−2.6% | Reduced |
| Victory Financial Group, LLC | 3,540 | $294.8K | 0.04% | −217−5.8% | Reduced |
| Smith Shellnut Wilson LLC | 3,517 | $295.2K | 0.11% | +478+15.7% | Added |
| Westend Capital Management, LLC | 3,525 | $295.9K | 0.09% | 00.0% | Unchanged |
| Dumont & Blake Investment Advisors LLC | 3,532 | $296.4K | 0.07% | +294+9.1% | Added |
| Burt Wealth Advisors | 3,539 | $297.0K | 0.07% | −4−0.1% | Reduced |
| Illumine Investment Management, LLC | 3,540 | $297.1K | 0.21% | −100−2.7% | Reduced |
| Chelsea Counsel Co | 3,510 | $297.5K | 0.13% | −340−8.8% | Reduced |
| InTrack Investment Management Inc | 3,557 | $298.5K | 0.18% | +3,557 | New |
| Northwest Capital Management Inc | 3,558 | $298.6K | 0.31% | −10,530−74.7% | Reduced |
| RD Lewis Holdings, Inc. | 3,266 | $298.7K | 0.28% | 00.0% | Unchanged |
| Vista Investment Partners LLC | 3,559 | $298.7K | 0.08% | 00.0% | Unchanged |
| Kelman-Lazarov, Inc. | 3,559 | $298.7K | 0.04% | +792+28.6% | Added |
| Galvin, Gaustad & Stein, LLC | 3,562 | $298.9K | 0.02% | +167+4.9% | Added |
| Sonoma Allocations LLC | 3,566 | $299.2K | 0.11% | +3,566 | New |
| Dakota Community Bank & Trust NA | 3,566 | $299.3K | 1.18% | +116+3.4% | Added |
| Tortoise Investment Management, LLC | 3,569 | $299.6K | 0.03% | +63+1.8% | Added |
| Viewpoint Capital Management LLC | 3,571 | $299.7K | 0.13% | +32+0.9% | Added |
| Triumph Capital Management | 3,572 | $299.8K | 0.08% | −754−17.4% | Reduced |
| Berkeley, Inc | 3,573 | $299.9K | 0.10% | −8,586−70.6% | Reduced |
| Riverstone Advisors, LLC | 3,578 | $300.3K | 0.15% | −391−9.9% | Reduced |
| Berman McAleer LLC | 3,544 | $300.3K | 0.04% | +3,544 | New |
| Founders Grove Wealth Partners, LLC | 3,579 | $300.4K | 0.07% | +388+12.2% | Added |
| Garland Capital Management Inc | 3,590 | $301.3K | 4.15% | −10,035−73.7% | Reduced |
| Atlas Legacy Advisors, LLC | 3,595 | $301.7K | 0.06% | +916+34.2% | Added |
| Greatmark Investment Partners, Inc. | 3,604 | $302.5K | 0.04% | +100+2.9% | Added |
| Pin Oak Investment Advisors Inc | 3,571 | $302.6K | 0.22% | −1,600−30.9% | Reduced |
| Core Wealth Advisors, Inc. | 3,606 | $302.7K | 0.08% | −793−18.0% | Reduced |
| Sterneck Capital Management, LLC | 3,611 | $303.1K | 0.14% | 00.0% | Unchanged |
| Peachtree Investment Partners, LLC | 3,611 | $303.1K | 0.11% | −358−9.0% | Reduced |
| Somerset Group LLC | 3,613 | $303.2K | 0.24% | 00.0% | Unchanged |
| Huntleigh Advisors, Inc. | 3,623 | $304.1K | 0.05% | −90−2.4% | Reduced |
| First Long Island Investors, LLC | 3,628 | $304.5K | 0.02% | −54−1.5% | Reduced |
| Per Stirling Capital Management, LLC. | 3,635 | $305.1K | 0.04% | +63+1.8% | Added |
| Mountain Pacific Investment Advisers Inc | 3,641 | $305.6K | 0.05% | 00.0% | Unchanged |
| Principal Street Partners, LLC | 3,641 | $305.6K | 0.05% | −2,881−44.2% | Reduced |
| Alteri Wealth LLC | 3,643 | $305.7K | 0.11% | +150+4.3% | Added |
| Hall Capital Management Co Inc | 3,653 | $306.6K | 0.12% | −1,440−28.3% | Reduced |
| Peck Wealth Management, LLC | 3,659 | $307.1K | 0.29% | +3,659 | New |
| Cannon Financial Strategists, Inc. | 3,666 | $307.7K | 0.04% | 00.0% | Unchanged |
| TFB Advisors LLC | 3,634 | $307.8K | 0.09% | −176−4.6% | Reduced |
| Goldstein Advisors, LLC | 3,668 | $307.9K | 0.04% | +53+1.5% | Added |
| Bell Bank | 3,669 | $307.9K | 0.01% | +34+0.9% | Added |
| Advus Financial Partners, LLC | 3,689 | $309.6K | 0.07% | −188−4.8% | Reduced |
| Wilkins Miller Wealth Management, LLC | 3,699 | $310.6K | 0.19% | +8+0.2% | Added |
| Tudor Financial Inc. | 3,702 | $310.7K | 0.17% | −120−3.1% | Reduced |
| Purkiss Capital Advisors LLC | 3,707 | $311.1K | 0.15% | −919−19.9% | Reduced |
| Three Seasons Wealth, LLC | 3,674 | $311.3K | 0.03% | +127+3.6% | Added |
| Red Mountain Financial, LLC | 3,711 | $311.4K | 0.32% | +3+0.1% | Added |
| RWM Asset Management, LLC | 3,711 | $311.5K | 0.04% | +883+31.2% | Added |
| Towerpoint Wealth, LLC | 3,714 | $311.8K | 0.13% | −230−5.8% | Reduced |
| Gateway Wealth Partners, LLC | 3,717 | $312.0K | 0.04% | −184−4.7% | Reduced |
| Manchester Financial Inc | 3,719 | $312.1K | 0.06% | −175−4.5% | Reduced |
| Seizert Capital Partners, LLC | 3,720 | $312.2K | 0.01% | 00.0% | Unchanged |
| JTC Employer Solutions Trusteee Ltd | 3,729 | $313.0K | 0.03% | 00.0% | Unchanged |
| Aufman Associates Inc | 3,733 | $313.3K | 0.18% | +29+0.8% | Added |