Merck & Co.MRK
13F holders, Q2 2025 (June 30)3,326holders −122
132new positions
247sold out
13famous investors
$79.12avg. 13F price*
At the end of Q2 2025, 3,326 institutions reported holding Merck & Co. Inc. (MRK) in their 13F filings, down 122 from Q1 2025. 132 opened new positions and 247 sold out. The largest holders were Vanguard Group Inc. ($20.0B), BlackRock, Inc. ($17.3B) and State Street Corp. ($9.5B). 13 famous investors held it, including Jeremy Grantham (1.5% of GMO's portfolio), Bill Nygren (1.2% of Harris Associates (Oakmark Funds)'s portfolio) and David E. Shaw (0.9% of D. E. Shaw & Co.'s portfolio).
- Company
- Merck & Co. Inc.
- Sector
- Health Care
- CUSIP
- 58933Y105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 132 | $543.0M |
| Exits | 247 | $1.0B |
All 13F filers, Q1 2025 → Q2 2025: 98,247,551 shares bought and 113,540,094 shares sold, net −15,292,543 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3,326 holders
| Vanguard Group Inc. | 0.32% | Add +0.2% | 252,914,426 | $20.0B |
| BlackRock, Inc. | 0.33% | Reduce -3.1% | 218,340,832 | $17.3B |
| State Street Corp. | 0.36% | Reduce -1.7% | 118,493,864 | $9.5B |
| Wellington Management Group LLP | 1.11% | Reduce -5.9% | 76,856,492 | $6.1B |
| Geode Capital Management, LLC | 0.33% | Reduce -1.2% | 58,952,681 | $4.7B |
| Charles Schwab Investment Management Inc. | 0.74% | Add +9.4% | 53,865,466 | $4.3B |
| Morgan Stanley | 0.23% | Add +2.5% | 44,200,694 | $3.5B |
| Norges Bank | 0.36% | Reduce -5.5% | 36,111,289 | $2.9B |
| JPMorgan Chase & Co. | 0.17% | Add +11.6% | 31,821,772 | $2.5B |
| FMR LLC | 0.14% | Reduce -0.8% | 31,566,125 | $2.5B |
| Northern Trust Corp. | 0.31% | Reduce -5.4% | 28,745,427 | $2.3B |
| Bank of America Corp. | 0.18% | Reduce -9.8% | 28,021,134 | $2.2B |
| Franklin Resources Inc. | 0.57% | Add +23.4% | 27,032,601 | $2.1B |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.40% | Add +21.2% | 25,133,329 | $2.0B |
| Fisher Asset Management | 0.79% | Add +2.3% | 25,013,697 | $2.0B |
| Bank of New York Mellon Corp | 0.33% | Reduce -4.9% | 21,997,430 | $1.7B |
| Legal & General Group Plc | 0.38% | Reduce -1.3% | 19,503,045 | $1.5B |
| Arrowstreet Capital, Limited Partnership | 1.09% | Add +35.5% | 19,456,096 | $1.5B |
| Goldman Sachs Group Inc. | 0.24% | Add +28.0% | 18,391,653 | $1.5B |
| Amundi | 0.47% | Add +26.4% | 16,532,657 | $1.4B |
| Deutsche Bank AG | 0.50% | Reduce -11.1% | 17,042,622 | $1.3B |
| Invesco Ltd. | 0.23% | Add +11.3% | 17,023,170 | $1.3B |
| UBS Group AG | 0.28% | Reduce -19.8% | 16,900,814 | $1.3B |
| State Farm Mutual Automobile Insurance Co. | 0.97% | No change | 13,794,969 | $1.1B |
| Royal Bank of Canada | 0.21% | Reduce -4.4% | 13,553,140 | $1.1B |
| Ameriprise Financial Inc. | 0.26% | Add +2.3% | 13,198,450 | $1.0B |
| Wells Fargo & Company | 0.20% | Reduce -4.3% | 11,383,088 | $901.1M |
| T. Rowe Price Associates Inc. | 0.10% | Reduce -8.2% | 10,797,990 | $854.8M |
| Nordea Investment Management AB | 0.78% | Add +14.0% | 10,735,428 | $845.1M |
| Dimensional Fund Advisors LP | 0.19% | Reduce -2.7% | 10,623,142 | $841.0M |
| D. E. Shaw & Co. | 0.87% | Add +11.3% | 10,367,789 | $820.7M |
| Harris Associates (Oakmark Funds) | 1.18% | Add +22.3% | 9,131,318 | $722.8M |
| Alliancebernstein L.P. | 0.23% | Reduce -13.5% | 8,854,176 | $700.9M |
| AQR Capital Management | 0.57% | Add +13.3% | 8,787,272 | $690.2M |
| Barrow Hanley Mewhinney & Strauss LLC | 2.32% | Add +11.8% | 8,706,682 | $689.2M |
| Aristotle Capital Management, LLC | 1.24% | Reduce -3.9% | 8,135,552 | $644.0M |
| Nuveen, LLC | 0.18% | Reduce -27.4% | 8,018,753 | $634.8M |
| Swedbank AB | 0.70% | Reduce -1.4% | 7,874,766 | $623.4M |
| HSBC Holdings PLC | 0.40% | Reduce -2.7% | 7,787,701 | $616.0M |
| Stifel Financial Corp. | 0.60% | Add +4.2% | 7,757,135 | $614.1M |
| PNC Financial Services Group, Inc. | 0.39% | Reduce -1.5% | 7,723,259 | $611.4M |
| Massachusetts Financial Services Co. | 0.19% | Reduce -3.8% | 7,679,866 | $607.9M |
| California Public Employees Retirement System | 0.39% | Reduce -7.4% | 7,677,010 | $607.7M |
| Raymond James Financial Inc. | 0.21% | Reduce -51.2% | 7,637,165 | $604.6M |
| Swiss National Bank | 0.36% | Add +6.8% | 7,617,551 | $603.0M |
| Sumitomo Mitsui Trust Group, Inc. | 0.37% | Add +2.1% | 7,436,596 | $588.7M |
| BNP Paribas Financial Markets | 0.42% | Reduce -19.0% | 6,644,333 | $526.0M |
| Lazard Asset Management LLC | 0.80% | Add +31.7% | 6,609,067 | $523.2M |
| GMO | 1.55% | Reduce -3.3% | 6,469,573 | $512.1M |
| Pacer Advisors, Inc. | 1.25% | Add +14.3% | 6,041,762 | $478.3M |
| Barclays PLC | 0.19% | Add +0.7% | 5,895,968 | $466.7M |
| Two Sigma Advisers, LP | 0.92% | Add +72.7% | 5,678,600 | $449.5M |
| Principal Financial Group Inc. | 0.24% | Add +0.0% | 5,629,591 | $445.6M |
| National Pension Service | 0.38% | Add +4.9% | 5,531,803 | $437.9M |
| DekaBank Deutsche Girozentrale | 0.77% | Add +0.7% | 5,427,912 | $430.1M |
| LSV Asset Management | 0.99% | Reduce -2.4% | 5,336,436 | $422.4M |
| Citigroup Inc. | 0.28% | Reduce -18.1% | 5,107,758 | $404.3M |
| Beutel, Goodman & Co Ltd. | 2.30% | Add +15.3% | 5,104,436 | $404.1M |
| First Trust Advisors LP | 0.32% | Add +77.9% | 5,049,741 | $399.7M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.31% | Add +6.4% | 4,977,819 | $394.1M |
| Corient Private Wealth LP | 0.52% | Add +85.6% | 4,937,948 | $390.9M |
| Clearbridge Investments, LLC | 0.32% | Reduce -17.5% | 4,891,067 | $387.2M |
| Thornburg Investment Management Inc. | 4.83% | Add +53.2% | 4,729,641 | $374.4M |
| Bank of Montreal | 0.19% | Reduce -13.3% | 4,675,862 | $370.1M |
| Aberdeen Group plc | 0.61% | Add +0.3% | 4,526,331 | $356.2M |
| Victory Capital Management Inc. | 0.23% | Reduce -0.8% | 4,432,168 | $350.9M |
| Caisse de depot et placement du Quebec | 0.75% | Add +2.4% | 4,420,111 | $349.9M |
| Acadian Asset Management LLC | 0.68% | Add +61.0% | 4,178,385 | $330.7M |
| Rhumbline Advisers | 0.28% | Reduce -8.5% | 4,109,208 | $325.3M |
| Capital International Investors | 0.06% | Reduce -15.6% | 4,064,975 | $321.8M |
| California State Teachers Retirement System | 0.36% | Add +0.5% | 4,063,309 | $321.7M |
| Qube Research & Technologies Ltd | 0.44% | Add +17.2% | 4,022,464 | $318.4M |
| Prudential Financial Inc. | 0.39% | Add +14.3% | 3,829,341 | $303.1M |
| American Century Companies Inc. | 0.16% | Add +23.7% | 3,772,459 | $298.6M |
| HighTower Advisors, LLC | 0.37% | Add +1.8% | 3,766,789 | $298.2M |
| Envestnet Asset Management Inc. | 0.09% | Reduce -25.8% | 3,745,382 | $296.5M |
| Russell Investments Group, Ltd. | 0.37% | Reduce -1.3% | 3,683,381 | $291.5M |
| Canada Pension Plan Investment Board | 0.25% | Reduce -4.8% | 3,637,000 | $287.9M |
| CANADA LIFE ASSURANCE Co | 0.46% | Add +16.4% | 3,632,893 | $287.8M |
| New York State Common Retirement Fund | 0.38% | Add +1.8% | 3,622,290 | $286.7M |
| National Bank of Canada | 0.30% | Add +9.0% | 3,543,903 | $280.6M |
| Macquarie Group Ltd. | 0.34% | Reduce -13.6% | 3,474,059 | $275.0M |
| Capital Research Global Investors | 0.05% | Add +9.9% | 3,462,269 | $274.1M |
| Royal London Asset Management Ltd. | 0.62% | Reduce -1.3% | 3,406,346 | $269.6M |
| LPL Financial LLC | 0.09% | Add +2.3% | 3,312,117 | $262.2M |
| Van Eck Associates Corp. | 0.30% | Add +6.6% | 3,295,691 | $260.9M |
| Smead Capital Management, Inc. | 5.18% | Reduce -2.0% | 3,267,318 | $258.6M |
| Robeco Institutional Asset Management B.V. | 0.40% | Add +21.4% | 3,163,417 | $250.4M |
| Ensign Peak Advisors, Inc | 0.43% | Add +20.5% | 3,151,749 | $249.5M |
| Marshall Wace, LLP | 0.30% | Add +41236.9% | 3,144,500 | $248.9M |
| Squarepoint Ops LLC | 0.54% | Reduce -19.9% | 3,102,582 | $245.6M |
| Bank Julius Baer & Co. Ltd, Zurich | 0.72% | Add +7.1% | 3,068,707 | $242.9M |
| Manufacturers Life Insurance Company, The | 0.21% | Reduce -21.8% | 2,982,906 | $236.1M |
| Man Group plc | 0.51% | Add +17.6% | 2,948,102 | $233.4M |
| Aviva PLC | 0.44% | Add +5.4% | 2,683,739 | $212.4M |
| Fayez Sarofim & Co | 0.50% | Reduce -10.2% | 2,620,725 | $207.5M |
| Mariner, LLC | 0.28% | Reduce -9.0% | 2,492,387 | $197.3M |
| KBC Group NV | 0.53% | Add +3.8% | 2,479,867 | $196.3M |
| Los Angeles Capital Management LLC | 0.73% | Reduce -8.2% | 2,455,569 | $194.4M |
| State Board of Administration of Florida Retirement System | 0.34% | Reduce -0.6% | 2,438,983 | $193.1M |
"% of holder's portfolio" is MRK's weight in each manager's 13F, not the share of Merck & Co. Inc. the manager owns.