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 2021
Institutional positions in Merck & Co., Inc. as of Sep 30, 2021. 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
- 2,658
- +15 vs. Q2 2021
- Shares held
- 1.85B
- −4.78M (−0.3%) vs. Q2 2021
- Total value
- $138.8B
- −$5.04B (−3.5%) vs. Q2 2021
- New holders
- 116
- 1,243 more added
- Sold out
- 101
- 978 more reduced
41 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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 | 3,813 | $231.9B |
| Q4 2025 | 3,675 | $206.6B |
| Q3 2025 | 3,320 | $159.8B |
| Q2 2025 | 3,338 | $155.9B |
| Q1 2025 | 3,460 | $177.7B |
| Q4 2024 | 3,619 | $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 2021
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Sector Gamma AS | 812,814 | $61.0M | 12.18% | +357,367+78.5% | Added |
| Calamos Advisors LLC | 809,768 | $60.8M | 0.29% | +50,329+6.6% | Added |
| Nisa Investment Advisors, LLC | 804,344 | $60.4M | 0.37% | −36,793−4.4% | Reduced |
| Compagnie Lombard Odier SCmA | 794,960 | $59.7M | 1.29% | −26,397−3.2% | Reduced |
| Comerica Bank | 735,667 | $59.7M | 0.36% | −133,130−15.3% | Reduced |
| Value Partners Investments Inc. | 795,667 | $59.4M | 5.05% | +1,263+0.2% | Added |
| USS Investment Management Ltd | 788,319 | $59.2M | 0.51% | −1,152,285−59.4% | Reduced |
| Empire Life Investments Inc. | 785,315 | $59.0M | 3.87% | +127,488+19.4% | Added |
| Great Lakes Advisors, LLC | 784,558 | $58.9M | 0.92% | −2,190−0.3% | Reduced |
| Gateway Investment Advisers LLC | 782,091 | $58.7M | 0.61% | +1,424+0.2% | Added |
| Railway Pension Investments Ltd | 771,509 | $57.9M | 0.47% | −5,200−0.7% | Reduced |
| CIBC World Markets Corp | 761,429 | $57.2M | 0.39% | +401,959+111.8% | Added |
| Edmond de Rothschild Holding S.A. | 761,132 | $57.2M | 1.32% | −10,382−1.3% | Reduced |
| AMP Capital Investors Ltd | 758,452 | $57.0M | 0.31% | −99,151−11.6% | Reduced |
| Fort Washington Investment Advisors Inc | 753,132 | $56.6M | 0.36% | +463,681+160.2% | Added |
| State of Alaska, Department of Revenue | 750,178 | $56.3M | 0.57% | −2710.0% | Reduced |
| Sanders Capital, LLC | 745,622 | $56.0M | 0.13% | +8,280+1.1% | Added |
| Fifth Third Bancorp | 742,284 | $55.8M | 0.24% | −18,115−2.4% | Reduced |
| NFJ Investment Group, LLC | 740,645 | $55.6M | 1.09% | +88,088+13.5% | Added |
| American International Group, Inc. | 735,131 | $55.2M | 0.29% | −1,959,567−72.7% | Reduced |
| Manning & Napier Group, LLC | 727,927 | $54.7M | 0.47% | −3,594−0.5% | Reduced |
| Birch Hill Investment Advisors LLC | 716,707 | $53.8M | 2.89% | +1,513+0.2% | Added |
| Kahn Brothers Group Inc | 706,183 | $53.0M | 7.47% | −10,146−1.4% | Reduced |
| Arizona State Retirement System | 706,095 | $53.0M | 0.43% | −2,837−0.4% | Reduced |
| Rockefeller Capital Management L.P. | 705,517 | $53.0M | 0.28% | +17,426+2.5% | Added |
| E. Ohman J:or Asset Management AB | 705,328 | $53.0M | 1.66% | +36,810+5.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 690,092 | $51.8M | 0.28% | −27,085−3.8% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 687,576 | $51.6M | 0.48% | −16,433−2.3% | Reduced |
| Amalgamated Bank | 686,035 | $51.5M | 0.44% | −24,838−3.5% | Reduced |
| RE Advisers Corp | 685,204 | $51.5M | 1.25% | +2,700+0.4% | Added |
| Blair William & Co | 681,330 | $51.2M | 0.17% | +55,013+8.8% | Added |
| Peapack Gladstone Financial Corp | 673,363 | $50.6M | 1.05% | +111,043+19.7% | Added |
| Financial Counselors Inc | 668,809 | $50.2M | 1.08% | +17,897+2.7% | Added |
| Prio Wealth Limited Partnership | 667,743 | $50.2M | 1.69% | +20,855+3.2% | Added |
| Nicholas Company, Inc. | 667,347 | $50.1M | 0.88% | +400.0% | Added |
| Advisors Asset Management, Inc. | 665,600 | $50.0M | 0.76% | +89,803+15.6% | Added |
| Letko, Brosseau & Associates Inc | 663,261 | $49.8M | 0.72% | −33,425−4.8% | Reduced |
| Radnor Capital Management, LLC | 659,541 | $49.5M | 29.42% | +42,158+6.8% | Added |
| State of Michigan Retirement System | 658,117 | $49.4M | 0.28% | −900−0.1% | Reduced |
| DnB Asset Management AS | 652,432 | $49.0M | 0.32% | +26,359+4.2% | Added |
| Cacti Asset Management LLC | 650,743 | $48.9M | 4.14% | −3,535−0.5% | Reduced |
| Zacks Investment Management | 649,800 | $48.8M | 0.77% | −182,807−22.0% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 646,294 | $48.5M | 0.27% | −821,862−56.0% | Reduced |
| United Services Automobile Association | 644,601 | $48.4M | 0.85% | −186,336−22.4% | Reduced |
| ProShare Advisors LLC | 632,316 | $47.5M | 0.13% | −22,451−3.4% | Reduced |
| Swiss Life Asset Management Ltd | 630,779 | $47.4M | 0.66% | +41,148+7.0% | Added |
| Nichols & Pratt Advisers LLP | 577,967 | $47.1M | 3.56% | −3,715−0.6% | Reduced |
| Banque Pictet & Cie SA | 619,808 | $46.6M | 0.48% | +9,541+1.6% | Added |
| Capital Group Private Client Services, Inc. | 615,570 | $46.2M | 0.54% | +615,570 | New |
| Vontobel Holding Ltd. | 610,341 | $45.8M | 0.40% | −15,980−2.6% | Reduced |
| Donaldson Capital Management, LLC | 605,673 | $45.5M | 2.29% | +222,078+57.9% | Added |
| Cornerstone Investment Partners, LLC | 603,121 | $45.3M | 2.61% | +32,219+5.6% | Added |
| Easterly Investment Partners LLC | 596,473 | $44.8M | 3.04% | +83,723+16.3% | Added |
| D.A. Davidson & Co. | 596,415 | $44.8M | 0.52% | +38,382+6.9% | Added |
| Loomis Sayles & Co L P | 587,718 | $44.1M | 0.05% | +57,083+10.8% | Added |
| Kornitzer Capital Management Inc | 579,119 | $43.5M | 0.67% | +1820.0% | Added |
| Aristotle Atlantic Partners, LLC | 578,210 | $43.4M | 2.87% | 00.0% | Unchanged |
| MetLife Investment Management | 571,738 | $42.9M | 0.38% | −15,309−2.6% | Reduced |
| Douglas Lane & Associates, LLC | 568,032 | $42.7M | 0.61% | +45,775+8.8% | Added |
| Forsta Ap-Fonden | 567,200 | $42.6M | 0.48% | +7,700+1.4% | Added |
| PointState Capital LP | 565,925 | $42.5M | 1.01% | +445,925+371.6% | Added |
| Edgar Lomax Co | 563,895 | $42.4M | 2.72% | −5,635−1.0% | Reduced |
| Bradley Foster & Sargent Inc | 555,537 | $41.7M | 0.98% | −5,271−0.9% | Reduced |
| Oregon Public Employees Retirement Fund | 553,769 | $41.6M | 0.48% | −27,809−4.8% | Reduced |
| CIBC World Markets Inc. | 547,990 | $41.2M | 0.15% | +84,692+18.3% | Added |
| Dai-Ichi Life Insurance Company, Ltd | 547,921 | $41.2M | 0.53% | −17,659−3.1% | Reduced |
| Quilter Plc | 533,171 | $40.0M | 1.12% | +21,410+4.2% | Added |
| MUFG Americas Holdings Corp | 530,040 | $39.8M | 0.75% | +29,837+6.0% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 525,749 | $39.5M | 0.10% | −488,302−48.2% | Reduced |
| Miller Howard Investments Inc | 522,430 | $39.2M | 1.62% | −17,514−3.2% | Reduced |
| Banco Santander, S.A. | 514,749 | $38.7M | 0.21% | +47,879+10.3% | Added |
| Lazard Asset Management LLC | 514,690 | $38.7M | 0.04% | −391,117−43.2% | Reduced |
| Primecap Management Co | 512,400 | $38.5M | 0.03% | −8,300−1.6% | Reduced |
| CIBC Asset Management Inc | 510,716 | $38.4M | 0.15% | −23,183−4.3% | Reduced |
| Neuberger Berman Group LLC | 531,306 | $38.0M | 0.03% | −4,871−0.9% | Reduced |
| Gabelli Funds LLC | 504,690 | $37.9M | 0.25% | +4,520+0.9% | Added |
| Gulf International Bank (UK) Ltd | 504,160 | $37.9M | 0.49% | −6,739−1.3% | Reduced |
| South Dakota Investment Council | 503,532 | $37.8M | 0.68% | +48,340+10.6% | Added |
| Dearborn Partners LLC | 494,629 | $37.2M | 1.51% | +187,443+61.0% | Added |
| Atalanta Sosnoff Capital, LLC | 483,877 | $36.3M | 0.85% | +483,877 | New |
| Systematic Alpha Investments, LLC | 410,682 | $36.2M | 1.58% | 00.0% | Unchanged |
| Payden & Rygel | 480,510 | $36.1M | 1.87% | +58,900+14.0% | Added |
| Creative Planning | 479,647 | $36.0M | 0.06% | +49,967+11.6% | Added |
| Boston Private Wealth LLC | 478,135 | $35.9M | 0.46% | −6,368−1.3% | Reduced |
| Impax Asset Management Group plc | 476,107 | $35.8M | 0.15% | +4,294+0.9% | Added |
| Fukoku Mutual Life Insurance Co | 469,043 | $35.2M | 2.75% | +2,420+0.5% | Added |
| British Columbia Investment Management Corp | 468,237 | $35.2M | 0.21% | −1480.0% | Reduced |
| Private Advisor Group, LLC | 466,504 | $35.0M | 0.22% | +183,915+65.1% | Added |
| Utah Retirement Systems | 458,610 | $34.4M | 0.47% | −24,400−5.1% | Reduced |
| Stephens Inc | 456,749 | $34.3M | 0.53% | +14,542+3.3% | Added |
| Pinnacle Associates Ltd | 454,866 | $34.2M | 0.63% | +17,430+4.0% | Added |
| Trillium Asset Management, LLC | 454,737 | $34.2M | 0.90% | +15,425+3.5% | Added |
| Employees Retirement System of Texas | 452,955 | $34.0M | 0.40% | −33,013−6.8% | Reduced |
| Rovida Advisors Inc. | 451,500 | $33.9M | 1.44% | 00.0% | Unchanged |
| Group One Trading, L.P. | 442,779 | $33.3M | 0.72% | +183,912+71.0% | Added |
| ING Groep NV | 441,776 | $33.2M | 0.43% | +210,336+90.9% | Added |
| Los Angeles Capital Management LLC | 434,427 | $32.6M | 0.15% | −239,364−35.5% | Reduced |
| Fiduciary Trust Co | 431,615 | $32.4M | 0.58% | −3,285−0.8% | Reduced |
| BI Asset Management Fondsmaeglerselskab A/S | 431,209 | $32.4M | 1.23% | −24,562−5.4% | Reduced |
| AIA Group Ltd | 430,522 | $32.3M | 1.83% | +64,792+17.7% | Added |