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; 3,854 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 2025
Institutional positions in Merck & Co., Inc. as of Mar 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
- 3,459
- −96 vs. Q4 2024
- Shares held
- 1.98B
- +20.8M (+1.1%) vs. Q4 2024
- Total value
- $177.7B
- −$17.2B (−8.8%) vs. Q4 2024
- New holders
- 180
- 1,353 more added
- Sold out
- 276
- 1,599 more reduced
63 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 | 3,854 | $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, Q1 2025
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 252,513,381 | $22.7B | 0.41% | +1,417,274+0.6% | Added |
| BlackRock, Inc. | 225,398,231 | $20.2B | 0.43% | +3,316,386+1.5% | Added |
| State Street Corp | 120,529,640 | $10.9B | 0.45% | −379,666−0.3% | Reduced |
| Wellington Management Group LLP | 81,669,651 | $7.33B | 1.41% | +927,621+1.1% | Added |
| Geode Capital Management, LLC | 59,657,270 | $5.34B | 0.42% | −1,524,593−2.5% | Reduced |
| Charles Schwab Investment Management Inc | 49,229,283 | $4.42B | 0.83% | +29,104,112+144.6% | Added |
| Morgan Stanley | 43,114,452 | $3.87B | 0.28% | −1,069,247−2.4% | Reduced |
| Norges Bank | 38,227,690 | $3.43B | 0.48% | +3,247,805+9.3% | Added |
| FMR LLC | 31,808,043 | $2.86B | 0.18% | −5,552,529−14.9% | Reduced |
| Bank of America Corp | 31,084,245 | $2.79B | 0.25% | −5,360,697−14.7% | Reduced |
| Northern Trust Corp | 30,390,864 | $2.73B | 0.40% | −986,243−3.1% | Reduced |
| JPMorgan Chase & Co | 28,508,222 | $2.56B | 0.19% | +1,398,367+5.2% | Added |
| Fisher Asset Management, LLC | 24,445,797 | $2.19B | 0.95% | +8,334,193+51.7% | Added |
| Bank of New York Mellon Corp | 23,130,857 | $2.08B | 0.41% | −1,082,680−4.5% | Reduced |
| Franklin Resources Inc | 21,896,853 | $1.97B | 0.57% | +2,024,409+10.2% | Added |
| UBS Group AG | 21,061,269 | $1.89B | 0.42% | +3,789,980+21.9% | Added |
| UBS Asset Management Americas Inc | 20,737,477 | $1.86B | 0.48% | −810,281−3.8% | Reduced |
| Legal & General Group Plc | 19,755,308 | $1.77B | 0.48% | +270,797+1.4% | Added |
| Deutsche Bank AG | 19,172,446 | $1.72B | 0.68% | −74,011−0.4% | Reduced |
| Raymond James Financial Inc | 15,640,892 | $1.40B | 0.53% | −51,440−0.3% | Reduced |
| Invesco Ltd. | 15,298,134 | $1.37B | 0.26% | −154,106−1.0% | Reduced |
| Goldman Sachs Group Inc | 14,367,432 | $1.29B | 0.24% | −2,731,720−16.0% | Reduced |
| Arrowstreet Capital, Limited Partnership | 14,362,008 | $1.29B | 1.05% | +7,888,914+121.9% | Added |
| Royal Bank of Canada | 14,178,149 | $1.27B | 0.28% | −4,197,825−22.8% | Reduced |
| State Farm Mutual Automobile Insurance Co | 13,794,969 | $1.24B | 1.14% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 12,898,889 | $1.16B | 0.31% | −1,065,775−7.6% | Reduced |
| Amundi | 13,077,716 | $1.13B | 0.41% | +3,542,036+37.1% | Added |
| Wells Fargo & Company | 11,899,152 | $1.07B | 0.26% | −2,966,636−20.0% | Reduced |
| Price T Rowe Associates Inc | 11,765,832 | $1.06B | 0.13% | −745,175−6.0% | Reduced |
| Nuveen, LLC | 11,046,718 | $991.6M | 0.31% | +11,046,718 | New |
| Dimensional Fund Advisors LP | 10,914,227 | $979.6M | 0.24% | −663,308−5.7% | Reduced |
| Alliancebernstein L.P. | 10,236,395 | $918.8M | 0.33% | −873,284−7.9% | Reduced |
| Nordea Investment Management AB | 9,416,070 | $839.3M | 0.89% | +16,427+0.2% | Added |
| D. E. Shaw & Co., Inc. | 9,311,726 | $835.8M | 0.99% | +2,936,922+46.1% | Added |
| Aristotle Capital Management, LLC | 8,463,749 | $759.7M | 1.51% | −224,584−2.6% | Reduced |
| California Public Employees Retirement System | 8,292,792 | $744.4M | 0.52% | −182,719−2.2% | Reduced |
| BNP Paribas Arbitrage, SA | 8,205,488 | $736.5M | 0.56% | +2,474,715+43.2% | Added |
| HSBC Holdings PLC | 8,006,266 | $717.4M | 0.48% | −443,628−5.3% | Reduced |
| Massachusetts Financial Services Co | 7,983,193 | $716.6M | 0.24% | −214,494−2.6% | Reduced |
| The PNC Financial Services Group, Inc. | 7,844,171 | $704.1M | 0.37% | −255,900−3.2% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 7,791,098 | $699.3M | 2.54% | +1,505,193+23.9% | Added |
| AQR Capital Management LLC | 7,757,818 | $691.1M | 0.71% | +2,380,066+44.3% | Added |
| Harris Associates L PSuperinvestorHarris Associates (Oakmark) | 7,469,360 | $670.4M | 1.13% | +1,224,910+19.6% | Added |
| Stifel Financial Corp | 7,445,038 | $668.3M | 0.71% | +82,935+1.1% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 7,285,677 | $654.0M | 0.46% | +72,944+1.0% | Added |
| Swiss National Bank | 7,134,851 | $640.4M | 0.45% | −25,900−0.4% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 6,686,596 | $600.2M | 1.89% | +521,325+8.5% | Added |
| Citigroup Inc | 6,232,594 | $559.4M | 0.43% | +1,492,688+31.5% | Added |
| Clearbridge Investments, LLC | 5,929,684 | $532.2M | 0.47% | +116,562+2.0% | Added |
| Barclays PLC | 5,856,852 | $525.7M | 0.24% | −609,159−9.4% | Reduced |
| Principal Financial Group Inc | 5,629,432 | $505.3M | 0.28% | −873,203−13.4% | Reduced |
| LSV Asset Management | 5,465,430 | $490.6M | 1.18% | −282,560−4.9% | Reduced |
| Bank of Montreal | 5,392,583 | $484.0M | 0.26% | −775,842−12.6% | Reduced |
| DekaBank Deutsche Girozentrale | 5,390,606 | $481.0M | 0.94% | −37,306−0.7% | Reduced |
| Pacer Advisors, Inc. | 5,286,801 | $474.5M | 1.13% | +5,060,959+2,240.9% | Added |
| National Pension Service | 5,273,483 | $473.3M | 0.45% | +312,035+6.3% | Added |
| Envestnet Asset Management Inc | 5,044,840 | $452.8M | 0.15% | −1,414,814−21.9% | Reduced |
| Lazard Asset Management LLC | 5,018,629 | $450.5M | 0.69% | +1,609,690+47.2% | Added |
| Capital International Investors | 4,813,805 | $432.0M | 0.08% | −1,466,945−23.4% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 4,680,105 | $420.0M | 0.39% | +480,672+11.4% | Added |
| Rhumbline Advisers | 4,492,983 | $403.3M | 0.38% | +29,663+0.7% | Added |
| Standard Life Aberdeen plc | 4,513,993 | $403.1M | 0.79% | +264,668+6.2% | Added |
| Victory Capital Management Inc | 4,467,000 | $401.0M | 0.41% | +1,121,878+33.5% | Added |
| Beutel, Goodman & Co Ltd. | 4,425,097 | $397.2M | 2.29% | +383,175+9.5% | Added |
| Caisse de Depot Et Placement du Quebec | 4,315,410 | $387.4M | 0.81% | +149,218+3.6% | Added |
| California State Teachers Retirement System | 4,044,610 | $363.0M | 0.45% | −31,218−0.8% | Reduced |
| Macquarie Group Ltd | 4,019,626 | $360.8M | 0.45% | +136,413+3.5% | Added |
| Squarepoint Ops LLC | 3,875,934 | $347.9M | 0.85% | +2,036,841+110.8% | Added |
| Canada Pension Plan Investment Board | 3,822,309 | $343.1M | 0.33% | −1,995,577−34.3% | Reduced |
| Manufacturers Life Insurance Company, The | 3,812,525 | $342.2M | 0.32% | −1,265,675−24.9% | Reduced |
| Bahl & Gaynor Inc | 3,740,595 | $335.8M | 1.71% | −579,583−13.4% | Reduced |
| Russell Investments Group, Ltd. | 3,730,069 | $334.3M | 0.46% | +649,408+21.1% | Added |
| HighTower Advisors, LLC | 3,698,960 | $332.0M | 0.45% | +547,085+17.4% | Added |
| New York State Common Retirement Fund | 3,558,596 | $319.4M | 0.47% | +38,905+1.1% | Added |
| Millennium Management LLC | 3,524,602 | $316.4M | 0.31% | −56,361−1.6% | Reduced |
| Royal London Asset Management Ltd | 3,451,556 | $309.8M | 0.73% | +2,190,512+173.7% | Added |
| Qube Research & Technologies Ltd | 3,433,412 | $308.2M | 0.48% | −937,049−21.4% | Reduced |
| Prudential Financial Inc | 3,351,418 | $300.8M | 0.43% | +706,099+26.7% | Added |
| Smead Capital Management, Inc. | 3,334,566 | $299.3M | 5.13% | +34,356+1.0% | Added |
| Two Sigma Advisers, LP | 3,288,600 | $295.2M | 0.66% | −1,598,500−32.7% | Reduced |
| National Bank of Canada | 3,249,992 | $291.7M | 0.34% | −1,347,464−29.3% | Reduced |
| LPL Financial LLC | 3,237,518 | $290.6M | 0.11% | +33,523+1.0% | Added |
| Capital Research Global Investors | 3,150,734 | $282.8M | 0.06% | −1,322,651−29.6% | Reduced |
| Great West Life Assurance Co | 3,121,289 | $280.4M | 0.49% | +19,981+0.6% | Added |
| Van Eck Associates Corp | 3,091,846 | $277.5M | 0.36% | −57,995−1.8% | Reduced |
| Thornburg Investment Management Inc | 3,086,806 | $277.1M | 3.87% | +1,210,422+64.5% | Added |
| American Century Companies Inc | 3,050,615 | $273.8M | 0.17% | +1,209,834+65.7% | Added |
| Fayez Sarofim & Co | 2,917,391 | $261.9M | 0.65% | −287,516−9.0% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 2,865,204 | $256.8M | 0.83% | +1,754,832+158.0% | Added |
| First Trust Advisors LP | 2,838,173 | $254.8M | 0.23% | +1,930,936+212.8% | Added |
| Janus Henderson Group PLC | 2,765,366 | $246.8M | 0.14% | −3,099,139−52.8% | Reduced |
| Mariner, LLC | 2,738,173 | $245.8M | 0.41% | +943,144+52.5% | Added |
| Bank of Nova Scotia | 2,693,721 | $241.8M | 0.54% | +734,919+37.5% | Added |
| Los Angeles Capital Management LLC | 2,674,845 | $240.1M | 1.06% | +1,305,255+95.3% | Added |
| CI Private Wealth, LLC | 2,660,860 | $238.9M | 0.39% | −454,904−14.6% | Reduced |
| Ensign Peak Advisors, Inc | 2,615,365 | $234.8M | 0.45% | −56,207−2.1% | Reduced |
| Robeco Institutional Asset Management B.V. | 2,606,526 | $234.0M | 0.45% | −50,885−1.9% | Reduced |
| Acadian Asset Management LLC | 2,594,693 | $232.9M | 0.66% | +2,027,957+357.8% | Added |
| Aviva PLC | 2,546,627 | $228.6M | 0.55% | +346,109+15.7% | Added |
| Man Group plc | 2,507,856 | $225.1M | 0.67% | +1,246,950+98.9% | Added |