Merck & Co.MRK
13F holders, Q2 2026 (June 30)3,844holders +39
159new positions
112sold out
15famous investors
$128.42avg. 13F price*
At the end of Q2 2026, 3,844 institutions reported holding Merck & Co. Inc. (MRK) in their 13F filings, up 39 from Q1 2026. 159 opened new positions and 112 sold out. The largest holders were BlackRock, Inc. ($29.2B), Vanguard Capital Management LLC ($20.7B) and State Street Corp. ($15.6B). 15 famous investors held it, including Bill Nygren (2.1% of Harris Associates (Oakmark Funds)'s portfolio), Jeremy Grantham (2.0% of GMO's portfolio) and Ken Fisher (1.5% of Fisher Asset Management'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 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 159 | $518.2M |
| Exits | 112 | $464.5M |
All 13F filers, Q1 2026 → Q2 2026: 89,529,506 shares bought and 79,155,763 shares sold, net +10,373,743 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3,844 holders
| BlackRock, Inc. | 0.44% | Add +0.5% | 226,999,837 | $29.2B |
| Vanguard Capital Management LLC | 0.44% | Add +0.2% | 161,323,174 | $20.7B |
| State Street Corp. | 0.46% | Add +0.9% | 120,413,256 | $15.6B |
| Wellington Management Group LLP | 1.91% | Add +2.3% | 86,249,283 | $11.1B |
| Vanguard Portfolio Management LLC | 0.39% | Add +0.7% | 67,738,969 | $8.7B |
| Geode Capital Management, LLC | 0.42% | Add +2.0% | 60,744,214 | $7.8B |
| Charles Schwab Investment Management Inc. | 0.93% | Add +9.2% | 54,365,289 | $7.0B |
| Morgan Stanley | 0.33% | Add +2.1% | 48,641,158 | $6.3B |
| FMR LLC | 0.25% | Add +2.1% | 45,440,355 | $5.8B |
| JPMorgan Chase & Co. | 0.33% | Reduce -17.1% | 43,886,420 | $5.7B |
| Fisher Asset Management | 1.47% | Add +45.7% | 38,516,263 | $4.9B |
| Norges Bank | 0.47% | — | 36,983,784 | $4.8B |
| Bank of America Corp. | 0.25% | Reduce -0.8% | 30,535,208 | $3.9B |
| Northern Trust Corp. | 0.39% | Reduce -3.0% | 26,275,718 | $3.4B |
| Goldman Sachs Group Inc. | 0.30% | Add +9.6% | 22,075,139 | $2.8B |
| Franklin Resources Inc. | 0.55% | Add +20.2% | 19,548,585 | $2.5B |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.46% | Reduce -4.3% | 19,547,171 | $2.5B |
| Legal & General Group Plc | 0.51% | Reduce -3.4% | 18,873,343 | $2.4B |
| Invesco Ltd. | 0.19% | Reduce -14.8% | 18,611,171 | $2.4B |
| T. Rowe Price Associates Inc. | 0.24% | Reduce -19.6% | 18,518,796 | $2.4B |
| Bank of New York Mellon Corp | 0.39% | Reduce -2.0% | 18,340,173 | $2.4B |
| Dimensional Fund Advisors LP | 0.41% | Add +13.1% | 17,486,486 | $2.2B |
| Ameriprise Financial Inc. | 0.45% | Add +6.9% | 17,387,435 | $2.2B |
| Capital International Investors | 0.41% | Add +1668.0% | 15,386,689 | $2.0B |
| Royal Bank of Canada | 0.31% | Add +8.3% | 14,293,086 | $1.8B |
| Vanguard Fiduciary Trust Co. | 0.39% | Reduce -0.7% | 13,869,309 | $1.8B |
| State Farm Mutual Automobile Insurance Co. | 1.21% | No change | 13,794,969 | $1.8B |
| UBS Group AG | 0.28% | Reduce -1.4% | 13,744,783 | $1.8B |
| Amundi | 0.38% | Reduce -10.3% | 12,342,274 | $1.6B |
| Alliancebernstein L.P. | 0.52% | Add +16.2% | 13,131,942 | $1.6B |
| Harris Associates (Oakmark Funds) | 2.06% | Reduce -2.4% | 12,073,109 | $1.6B |
| Deutsche Bank AG | 0.45% | Reduce -4.6% | 11,964,180 | $1.5B |
| Wells Fargo & Company | 0.26% | Add +1.9% | 11,658,434 | $1.5B |
| Nuveen, LLC | 0.30% | Reduce -4.3% | 9,662,399 | $1.2B |
| Stifel Financial Corp. | 0.87% | Reduce -1.5% | 8,169,394 | $1.0B |
| AQR Capital Management | 0.36% | Reduce -5.7% | 8,134,262 | $1.0B |
| HSBC Holdings PLC | 0.48% | Add +1.3% | 7,734,965 | $994.1M |
| Barrow Hanley Mewhinney & Strauss LLC | 2.86% | Reduce -7.4% | 7,331,418 | $942.1M |
| PNC Financial Services Group, Inc. | 0.46% | Reduce -3.2% | 7,286,803 | $936.4M |
| Swiss National Bank | 0.47% | Reduce -4.3% | 6,973,251 | $896.1M |
| Barclays PLC | 0.28% | Reduce -10.1% | 6,793,897 | $873.0M |
| GMO | 1.96% | Reduce -3.3% | 6,785,008 | $871.9M |
| Aristotle Capital Management, LLC | 1.77% | Reduce -4.6% | 6,578,570 | $845.4M |
| Voya Investment Management LLC | 0.83% | Add +25.7% | 6,484,756 | $833.3M |
| Swedbank AB | 0.70% | Reduce -10.3% | 6,360,649 | $817.3M |
| Raymond James Financial Inc. | 0.22% | Reduce -5.3% | 6,236,773 | $801.4M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.44% | Add +7.0% | 6,184,340 | $794.6M |
| Sumitomo Mitsui Trust Group, Inc. | 0.45% | Reduce -1.6% | 6,169,107 | $792.7M |
| National Pension Service | 0.48% | Add +0.5% | 5,791,782 | $744.2M |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.49% | Add +11.8% | 5,593,255 | $718.7M |
| Bank of Montreal | 0.26% | Add +15.2% | 5,565,728 | $715.2M |
| Vanguard Global Advisers, LLC | 0.33% | Reduce -1.3% | 5,512,538 | $708.4M |
| California Public Employees Retirement System | 0.39% | Reduce -26.9% | 5,398,744 | $693.7M |
| LSV Asset Management | 1.24% | Add +4.1% | 5,299,408 | $681.0M |
| DekaBank Deutsche Girozentrale | 1.08% | No change | 5,427,912 | $638.7M |
| American Century Companies Inc. | 0.28% | Reduce -12.3% | 4,865,967 | $625.3M |
| Principal Financial Group Inc. | 0.30% | Add +0.9% | 4,751,479 | $610.6M |
| Capital Wealth Planning, LLC | 3.02% | Add +4.3% | 4,708,599 | $605.1M |
| Caisse de depot et placement du Quebec | 0.81% | Add +17.1% | 4,448,107 | $571.6M |
| Aberdeen Group plc | 0.78% | Reduce -7.6% | 4,309,756 | $553.8M |
| Canada Pension Plan Investment Board | 0.30% | Add +15.5% | 4,176,604 | $536.7M |
| Victory Capital Management Inc. | 0.30% | Add +9.3% | 4,143,885 | $532.5M |
| Envestnet Asset Management Inc. | 0.12% | Add +3.7% | 3,996,890 | $513.6M |
| Arrowstreet Capital, Limited Partnership | 0.23% | Add +35.1% | 3,966,523 | $509.7M |
| Jupiter Topco LLC | 0.20% | — | 3,901,539 | $501.2M |
| Allianz Asset Management GmbH | 0.46% | Reduce -3.0% | 3,845,071 | $494.1M |
| LPL Financial LLC | 0.11% | Add +1.4% | 3,836,733 | $493.0M |
| Rhumbline Advisers | 0.37% | Add +0.3% | 3,809,518 | $489.5M |
| Thornburg Investment Management Inc. | 4.66% | Add +1.6% | 3,787,976 | $486.8M |
| California State Teachers Retirement System | 0.45% | Reduce -1.6% | 3,772,142 | $484.7M |
| Bank Julius Baer & Co. Ltd, Zurich | 1.24% | Add +0.8% | 3,729,950 | $480.3M |
| Acadian Asset Management LLC | 0.56% | Reduce -12.1% | 3,695,329 | $474.8M |
| HighTower Advisors, LLC | 0.45% | Add +1.2% | 3,679,920 | $472.9M |
| Citigroup Inc. | 0.22% | Add +30.1% | 3,614,905 | $464.5M |
| Neuberger Berman Group LLC | 0.30% | Add +7.7% | 3,533,955 | $454.2M |
| Nordea Investment Management AB | 0.36% | Reduce -58.9% | 3,503,750 | $445.1M |
| Ensign Peak Advisors, Inc | 0.71% | Add +28.8% | 3,364,831 | $432.4M |
| Aviva PLC | 0.62% | Add +0.8% | 3,264,106 | $419.4M |
| BNP Paribas Financial Markets | 0.21% | Add +41.9% | 3,130,937 | $402.3M |
| SG Americas Securities, LLC | 0.23% | Add +84.5% | 3,072,242 | $394.8M |
| Royal London Asset Management Ltd. | 0.71% | Add +3.1% | 2,987,037 | $383.8M |
| New York State Common Retirement Fund | 0.47% | Reduce -17.2% | 2,909,819 | $373.9M |
| Natixis Advisors, LLC | 0.41% | Reduce -3.8% | 2,857,628 | $367.2M |
| Federated Hermes, Inc. | 0.53% | Reduce -5.2% | 2,852,266 | $366.5M |
| CANADA LIFE ASSURANCE Co | 0.58% | Reduce -5.3% | 2,816,256 | $361.1M |
| Mariner, LLC | 0.37% | Reduce -0.5% | 2,781,786 | $357.5M |
| D. E. Shaw & Co. | 0.23% | Reduce -19.4% | 2,738,023 | $351.8M |
| Jennison Associates LLC | 0.21% | Reduce -56.3% | 2,728,958 | $350.7M |
| Assenagon Asset Management S.A. | 0.45% | Add +263.7% | 2,702,992 | $347.3M |
| First Trust Advisors LP | 0.20% | Reduce -42.0% | 2,591,856 | $333.1M |
| Russell Investments Group, Ltd. | 0.29% | Add +2.0% | 2,578,024 | $331.9M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.34% | Add +11.5% | 2,581,691 | $331.8M |
| Jones Financial Companies LLLP | 0.13% | Reduce -4.2% | 2,548,737 | $327.9M |
| Alyeska Investment Group, L.P. | 0.82% | Add +7.6% | 2,480,590 | $318.8M |
| Schroder Investment Management Group | 0.22% | Add +39.8% | 2,455,664 | $315.6M |
| National Bank of Canada | 0.27% | Add +24.1% | 2,433,801 | $312.7M |
| Eurizon Capital SGR S.p.A. | 0.83% | Reduce -15.0% | 2,398,834 | $308.7M |
| Corient Private Wealth LP | 0.43% | Reduce -1.5% | 2,391,313 | $307.3M |
| Robeco Institutional Asset Management B.V. | 0.37% | Add +2.2% | 2,373,993 | $305.1M |
| Mackenzie Financial Corp. | 0.31% | Reduce -5.7% | 2,373,431 | $305.0M |
"% of holder's portfolio" is MRK's weight in each manager's 13F, not the share of Merck & Co. Inc. the manager owns.