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, Q4 2023
Institutional positions in Merck & Co., Inc. as of Dec 31, 2023. 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
- 3,443
- +275 vs. Q3 2023
- Shares held
- 1.94B
- +26.5M (+1.4%) vs. Q3 2023
- Total value
- $211.6B
- +$14.5B (+7.4%) vs. Q3 2023
- New holders
- 382
- 1,247 more added
- Sold out
- 107
- 1,486 more reduced
53 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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 | 3,501 | $221.8B |
| Q2 2024 | 3,557 | $242.3B |
| Q1 2024 | 3,546 | $256.9B |
| Q4 2023 | 3,443 | $211.6B |
| Q3 2023 | 3,221 | $197.7B |
| Q2 2023 | 3,261 | $222.8B |
| Q1 2023 | 3,187 | $205.1B |
| Q4 2022 | 3,243 | $212.2B |
| Q3 2022 | 2,996 | $162.7B |
| Q2 2022 | 3,019 | $171.5B |
| Q1 2022 | 2,961 | $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, Q4 2023
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| First Financial Bankshares Inc | 849,274 | $92.6M | 2.22% | +849,274 | New |
| Voloridge Investment Management, LLC | 827,788 | $90.2M | 0.36% | +827,788 | New |
| Impax Asset Management Group plc | 823,846 | $89.8M | 0.36% | +42,810+5.5% | Added |
| Crawford Investment Counsel Inc | 823,844 | $89.8M | 1.80% | −27,345−3.2% | Reduced |
| UniSuper Management Pty Ltd | 818,232 | $89.2M | 0.99% | −18,989−2.3% | Reduced |
| Haverford Trust Co | 814,259 | $88.8M | 0.98% | +5,860+0.7% | Added |
| Zacks Investment Management | 812,533 | $88.6M | 1.09% | −51,593−6.0% | Reduced |
| MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH | 809,799 | $88.3M | 3.35% | +88,446+12.3% | Added |
| Woodline Partners LP | 794,456 | $86.6M | 0.94% | −88,044−10.0% | Reduced |
| Tocqueville Asset Management L.P. | 791,637 | $86.3M | 1.56% | +3,198+0.4% | Added |
| First Trust Advisors LP | 791,337 | $86.3M | 0.09% | −1,736,922−68.7% | Reduced |
| Creative Planning | 787,071 | $85.8M | 0.16% | −106,168−11.9% | Reduced |
| Pinebridge Investments, L.P. | 785,700 | $85.7M | 0.79% | +452,104+135.5% | Added |
| Boston Trust Walden Corp | 768,151 | $83.7M | 0.63% | +18,309+2.4% | Added |
| Groupama Asset Managment | 1,505,389 | $83.1M | 2.16% | +1,505,389 | New |
| Saturna Capital CORP | 759,838 | $82.8M | 1.29% | +100,052+15.2% | Added |
| Blair William & Co | 737,716 | $80.4M | 0.27% | +15,121+2.1% | Added |
| Banque Pictet & Cie SA | 736,065 | $80.2M | 0.91% | −131,858−15.2% | Reduced |
| DnB Asset Management AS | 729,764 | $79.6M | 0.41% | +9,432+1.3% | Added |
| Nisa Investment Advisors, LLC | 719,479 | $78.4M | 0.56% | −30,511−4.1% | Reduced |
| Mercer Global Advisors Inc | 714,063 | $77.8M | 0.23% | +132,152+22.7% | Added |
| Arizona State Retirement System | 713,916 | $77.8M | 0.59% | −4,311−0.6% | Reduced |
| Glenmede Trust Co NA | 711,290 | $77.5M | 0.40% | −239,929−25.2% | Reduced |
| Clark Capital Management Group, Inc. | 706,968 | $77.1M | 0.63% | +253,428+55.9% | Added |
| AMF Pensionsforsakring AB | 700,860 | $76.5M | 0.65% | −47,895−6.4% | Reduced |
| Sound Shore Management Inc | 701,723 | $76.5M | 2.65% | −1,570−0.2% | Reduced |
| Compagnie Lombard Odier SCmA | 699,777 | $76.3M | 1.42% | +63,591+10.0% | Added |
| Peapack Gladstone Financial Corp | 697,208 | $76.0M | 1.28% | −9,110−1.3% | Reduced |
| State of Michigan Retirement System | 693,790 | $75.6M | 0.45% | −27,000−3.7% | Reduced |
| Artisan Partners Limited Partnership | 692,943 | $75.5M | 0.12% | +15,684+2.3% | Added |
| LGT Group Foundation | 692,516 | $75.3M | 1.66% | −13,191−1.9% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 689,533 | $75.2M | 0.94% | −151,497−18.0% | Reduced |
| APG Asset Management US Inc. | 678,023 | $73.9M | 0.45% | +678,023 | New |
| Forsta Ap-Fonden | 669,500 | $73.0M | 0.74% | +11,000+1.7% | Added |
| RE Advisers Corp | 666,704 | $72.7M | 1.86% | +1,100+0.2% | Added |
| American International Group, Inc. | 655,769 | $71.5M | 0.29% | −12,503−1.9% | Reduced |
| Cacti Asset Management LLC | 659,718 | $71.2M | 6.19% | +2250.0% | Added |
| AE Wealth Management LLC | 577,796 | $69.8M | 0.36% | +177,825+44.5% | Added |
| Factory Mutual Insurance Co | 639,980 | $69.8M | 0.87% | 00.0% | Unchanged |
| MetLife Investment Management | 634,547 | $69.2M | 0.50% | −12,641−2.0% | Reduced |
| Teacher Retirement System of Texas | 629,087 | $68.6M | 0.47% | −8,302−1.3% | Reduced |
| United Services Automobile Association | 625,347 | $68.2M | 1.51% | −653−0.1% | Reduced |
| Kahn Brothers Group Inc | 624,541 | $68.1M | 10.73% | −14,252−2.2% | Reduced |
| Gateway Investment Advisers LLC | 623,938 | $68.0M | 0.79% | −745−0.1% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 619,392 | $67.5M | 0.80% | +126,022+25.5% | Added |
| Amalgamated Bank | 616,575 | $67.2M | 0.54% | −31,568−4.9% | Reduced |
| Vontobel Holding Ltd. | 612,760 | $66.8M | 0.56% | −17,429−2.8% | Reduced |
| Old Republic International Corporation | 609,850 | $66.5M | 2.51% | −9,000−1.5% | Reduced |
| Employees Retirement System of Texas | 607,424 | $66.2M | 0.78% | 00.0% | Unchanged |
| GWM Advisors LLC | 590,339 | $66.1M | 0.63% | +39,515+7.2% | Added |
| Tredje AP-fonden | 602,022 | $65.6M | 0.82% | +67,130+12.6% | Added |
| Financial Counselors Inc | 600,627 | $65.5M | 1.17% | +2,394+0.4% | Added |
| Ofi Invest Asset Management | 659,262 | $65.1M | 2.19% | +137,784+26.4% | Added |
| PFM Health Sciences, LP | 596,261 | $65.0M | 3.90% | 00.0% | Unchanged |
| Atalanta Sosnoff Capital, LLC | 590,329 | $64.4M | 1.66% | −6,884−1.2% | Reduced |
| Sanibel Captiva Trust Company, Inc. | 589,114 | $64.2M | 2.37% | +589,114 | New |
| MML Investors Services, LLC | 585,362 | $63.8M | 0.29% | +45,240+8.4% | Added |
| Prio Wealth Limited Partnership | 582,990 | $63.6M | 2.18% | +6,321+1.1% | Added |
| USS Investment Management Ltd | 570,788 | $62.2M | 0.56% | −65,861−10.3% | Reduced |
| HM Payson & Co | 570,524 | $62.2M | 1.29% | +46,666+8.9% | Added |
| Jane Street Group, LLC | 563,764 | $61.5M | 0.07% | +190,342+51.0% | Added |
| Guggenheim Capital LLC | 562,960 | $61.4M | 0.47% | −39,715−6.6% | Reduced |
| QRG Capital Management, Inc. | 561,959 | $61.3M | 0.91% | +8,278+1.5% | Added |
| D.A. Davidson & Co. | 561,212 | $61.2M | 0.60% | −38,035−6.3% | Reduced |
| Fort Pitt Capital Group, LLC | 560,262 | $61.1M | 2.00% | +32,660+6.2% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 554,918 | $60.5M | 0.44% | +44,704+8.8% | Added |
| Kornitzer Capital Management Inc | 553,321 | $60.3M | 1.17% | −5,295−0.9% | Reduced |
| Ossiam | 552,025 | $60.2M | 0.97% | +470,962+581.0% | Added |
| Radnor Capital Management, LLC | 547,534 | $59.7M | 11.13% | −17,248−3.1% | Reduced |
| Samlyn Capital, LLC | 546,601 | $59.6M | 1.29% | +546,601 | New |
| CIBC World Markets Corp | 541,151 | $59.0M | 0.32% | +210,567+63.7% | Added |
| Teachers Retirement System of the State of Kentucky | 534,805 | $58.3M | 0.54% | −185,543−25.8% | Reduced |
| Stephens Inc | 532,985 | $58.1M | 1.00% | +30,527+6.1% | Added |
| ProShare Advisors LLC | 530,901 | $57.9M | 0.18% | −36,530−6.4% | Reduced |
| Fort Washington Investment Advisors Inc | 530,693 | $57.9M | 0.40% | −31,629−5.6% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 526,225 | $57.4M | 0.75% | −3,514−0.7% | Reduced |
| Pathstone Holdings, LLC | 524,739 | $57.4M | 0.31% | +524,739 | New |
| IFM Investors Pty Ltd | 523,869 | $57.1M | 0.70% | +5,169+1.0% | Added |
| Texas Permanent School Fund | 523,386 | $57.1M | 0.49% | −1,115−0.2% | Reduced |
| Balyasny Asset Management LLC | 522,964 | $57.0M | 0.16% | −538,726−50.7% | Reduced |
| Colony Group, LLC | 522,570 | $57.0M | 0.75% | +522,570 | New |
| Aristotle Atlantic Partners, LLC | 517,610 | $56.4M | 1.99% | 00.0% | Unchanged |
| CWM, LLC | 515,632 | $56.2M | 0.30% | +6,969+1.4% | Added |
| La Banque Postale Asset Management SA | 511,073 | $55.7M | 1.23% | +177,498+53.2% | Added |
| Harvest Portfolios Group Inc. | 509,926 | $55.6M | 2.36% | −4,225−0.8% | Reduced |
| Swiss Life Asset Management Ltd | 508,052 | $55.4M | 0.67% | +66,242+15.0% | Added |
| Martingale Asset Management L P | 503,877 | $54.9M | 1.12% | −20,160−3.8% | Reduced |
| Douglas Lane & Associates, LLC | 503,480 | $54.9M | 0.85% | +1,142+0.2% | Added |
| Nichols & Pratt Advisers LLP | 490,397 | $53.5M | 3.81% | −12,874−2.6% | Reduced |
| Sapient Capital LLC | 483,863 | $53.1M | 1.37% | +483,863 | New |
| CIBC Asset Management Inc | 484,459 | $52.8M | 0.20% | −18,651−3.7% | Reduced |
| Empire Life Investments Inc. | 478,937 | $52.2M | 3.37% | −12,780−2.6% | Reduced |
| Manning & Napier Group, LLC | 477,808 | $52.1M | 0.62% | −68,741−12.6% | Reduced |
| Border to Coast Pensions Partnership Ltd | 475,223 | $51.8M | 1.26% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 475,137 | $51.8M | 0.87% | +48,596+11.4% | Added |
| Pinnacle Associates Ltd | 474,065 | $51.7M | 0.87% | −1,091−0.2% | Reduced |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 427,090 | $51.6M | 0.51% | −3,439−0.8% | Reduced |
| Cookson Peirce & Co Inc | 471,703 | $51.4M | 3.11% | −11,574−2.4% | Reduced |
| Donaldson Capital Management, LLC | 471,081 | $51.4M | 2.30% | −8,773−1.8% | Reduced |
| Holocene Advisors, LP | 470,865 | $51.3M | 0.20% | +470,865 | New |