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, Q1 2023
Institutional positions in Merck & Co., Inc. as of Mar 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
- 3,187
- +15 vs. Q4 2022
- Shares held
- 1.99B
- +80.9M (+4.2%) vs. Q4 2022
- Total value
- $205.1B
- −$6.63B (−3.1%) vs. Q4 2022
- New holders
- 162
- 1,209 more added
- Sold out
- 147
- 1,449 more reduced
71 institutions that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Banque Pictet & Cie SA | 764,834 | $81.4M | 0.79% | −57,564−7.0% | Reduced |
| Factory Mutual Insurance Co | 763,280 | $81.2M | 1.27% | −46,500−5.7% | Reduced |
| Old Republic International Corporation | 763,100 | $81.2M | 2.60% | −1,000−0.1% | Reduced |
| Oregon Public Employees Retirement Fund | 762,893 | $81.2M | 1.01% | −13,108−1.7% | Reduced |
| Boston Trust Walden Corp | 753,223 | $80.1M | 0.69% | −33,579−4.3% | Reduced |
| Jane Street Group, LLC | 736,923 | $78.4M | 0.13% | +495,063+204.7% | Added |
| Avalon Investment & Advisory | 736,753 | $78.4M | 2.15% | −19,639−2.6% | Reduced |
| Rathbone Brothers plc | 733,664 | $78.1M | 0.80% | +212,337+40.7% | Added |
| State of Michigan Retirement System | 730,990 | $77.8M | 0.51% | +7,200+1.0% | Added |
| Peapack Gladstone Financial Corp | 725,484 | $77.4M | 1.47% | −4,114−0.6% | Reduced |
| Calamos Advisors LLC | 713,245 | $75.9M | 0.38% | −60,622−7.8% | Reduced |
| Ci Investments Inc. | 712,573 | $75.8M | 0.38% | +390,310+121.1% | Added |
| Amalgamated Bank | 710,887 | $75.6M | 0.64% | +33,774+5.0% | Added |
| Gateway Investment Advisers LLC | 704,359 | $74.9M | 0.92% | −62,738−8.2% | Reduced |
| Blair William & Co | 701,872 | $74.7M | 0.30% | +6,275+0.9% | Added |
| Woodline Partners LP | 701,803 | $74.7M | 1.06% | +189,468+37.0% | Added |
| MetLife Investment Management | 696,545 | $74.1M | 0.53% | −7,736−1.1% | Reduced |
| Fort Washington Investment Advisors Inc | 694,760 | $73.9M | 0.56% | −102,701−12.9% | Reduced |
| Arizona State Retirement System | 692,271 | $73.7M | 0.66% | +2,024+0.3% | Added |
| Vontobel Holding Ltd. | 690,856 | $73.5M | 0.68% | −20,792−2.9% | Reduced |
| CIBC Private Wealth Group, LLC | 1,144,670 | $73.2M | 0.21% | −36,249−3.1% | Reduced |
| Miller Howard Investments Inc | 685,536 | $72.9M | 2.64% | +9,623+1.4% | Added |
| Creative Planning | 681,529 | $72.5M | 0.10% | +8,241+1.2% | Added |
| Forsta Ap-Fonden | 681,300 | $72.5M | 0.85% | −63,400−8.5% | Reduced |
| Natixis | 679,127 | $72.3M | 0.67% | −291,077−30.0% | Reduced |
| Qube Research & Technologies Ltd | 671,967 | $71.5M | 0.41% | +663,314+7,665.7% | Added |
| Kahn Brothers Group Inc | 671,604 | $71.5M | 10.29% | −10,159−1.5% | Reduced |
| Sound Shore Management Inc | 669,280 | $71.2M | 2.68% | +10,601+1.6% | Added |
| American International Group, Inc. | 668,181 | $71.1M | 0.47% | +3,338+0.5% | Added |
| Federated Hermes, Inc. | 664,871 | $70.7M | 0.18% | −3,037,634−82.0% | Reduced |
| Cacti Asset Management LLC | 659,493 | $70.2M | 6.47% | 00.0% | Unchanged |
| Saturna Capital CORP | 658,216 | $70.0M | 1.36% | +190,437+40.7% | Added |
| Artisan Partners Limited Partnership | 656,728 | $69.9M | 0.12% | −118,205−15.3% | Reduced |
| RE Advisers Corp | 652,404 | $69.4M | 1.93% | −13,700−2.1% | Reduced |
| Senator Investment Group LP | 650,000 | $69.2M | 3.81% | +650,000 | New |
| MEAG MUNICH ERGO, Kapitalanlagegesellschaft mbH | 642,874 | $68.4M | 3.23% | +65,837+11.4% | Added |
| Balyasny Asset Management LLC | 633,394 | $67.4M | 0.22% | +345,871+120.3% | Added |
| BI Asset Management Fondsmaeglerselskab A/S | 628,331 | $66.8M | 1.77% | −120,740−16.1% | Reduced |
| Point72 Asset Management, L.P. | 626,972 | $66.7M | 0.24% | +274,099+77.7% | Added |
| USS Investment Management Ltd | 624,213 | $66.4M | 0.92% | +12,650+2.1% | Added |
| Compagnie Lombard Odier SCmA | 618,434 | $65.8M | 1.64% | −110,948−15.2% | Reduced |
| United Services Automobile Association | 617,183 | $65.7M | 2.11% | −114,017−15.6% | Reduced |
| State of Alaska, Department of Revenue | 612,971 | $65.2M | 0.77% | −4,735−0.8% | Reduced |
| ProShare Advisors LLC | 610,839 | $65.0M | 0.20% | +62,941+11.5% | Added |
| D.A. Davidson & Co. | 608,950 | $64.8M | 0.73% | −13,785−2.2% | Reduced |
| Financial Counselors Inc | 608,748 | $64.8M | 1.39% | −34,607−5.4% | Reduced |
| DnB Asset Management AS | 605,420 | $64.4M | 0.41% | −58,977−8.9% | Reduced |
| Prio Wealth Limited Partnership | 602,056 | $64.1M | 2.45% | −38,675−6.0% | Reduced |
| Avidity Partners Management LP | 600,000 | $63.8M | 2.12% | +600,000 | New |
| Swiss Life Asset Management Ltd | 596,208 | $63.4M | 0.95% | +2,719+0.5% | Added |
| Martingale Asset Management L P | 591,743 | $63.0M | 1.21% | −44,321−7.0% | Reduced |
| Van Eck Associates Corp | 587,352 | $62.5M | 0.14% | −138,519−19.1% | Reduced |
| Radnor Capital Management, LLC | 587,145 | $62.5M | 16.43% | −6,783−1.1% | Reduced |
| Perpetual Ltd | 581,986 | $61.9M | 0.54% | +581,986 | New |
| E. Ohman J:or Asset Management AB | 580,663 | $61.8M | 2.42% | +33,779+6.2% | Added |
| Boston Common Asset Management, LLC | 567,918 | $60.4M | 1.26% | −82,777−12.7% | Reduced |
| Nichols & Pratt Advisers LLP | 564,855 | $60.2M | 4.63% | −4,582−0.8% | Reduced |
| Kornitzer Capital Management Inc | 561,003 | $59.7M | 1.19% | −4,016−0.7% | Reduced |
| Bradley Foster & Sargent Inc | 560,370 | $59.6M | 1.42% | −3,244−0.6% | Reduced |
| Cantor Fitzgerald, L. P. | 559,868 | $59.6M | 1.27% | −836−0.1% | Reduced |
| Tekla Capital Management LLC | 552,122 | $58.7M | 2.24% | 00.0% | Unchanged |
| Employees Retirement System of Texas | 549,424 | $58.5M | 0.85% | 00.0% | Unchanged |
| Trillium Asset Management, LLC | 509,998 | $58.4M | 1.71% | +42,602+9.1% | Added |
| Abn Amro Investment Solutions | 548,983 | $58.4M | 1.21% | +548,983 | New |
| Unigestion Holding SA | 548,034 | $58.0M | 3.15% | −34,282−5.9% | Reduced |
| GWM Advisors LLC | 535,364 | $57.5M | 0.72% | +8,483+1.6% | Added |
| Mercer Global Advisors Inc | 534,181 | $56.8M | 0.26% | +39,455+8.0% | Added |
| Los Angeles Capital Management LLC | 533,378 | $56.7M | 0.25% | −275,642−34.1% | Reduced |
| Advisors Asset Management, Inc. | 532,680 | $56.7M | 1.15% | −73,126−12.1% | Reduced |
| Colony Group LLC | 531,710 | $56.6M | 0.84% | −20,849−3.8% | Reduced |
| Texas Permanent School Fund | 528,586 | $56.2M | 0.56% | +168,356+46.7% | Added |
| Aristotle Atlantic Partners, LLC | 526,810 | $56.0M | 2.88% | 00.0% | Unchanged |
| CIBC Asset Management Inc | 524,100 | $55.8M | 0.23% | −8,568−1.6% | Reduced |
| Douglas Lane & Associates, LLC | 523,548 | $55.7M | 0.93% | −14,584−2.7% | Reduced |
| Manning & Napier Group, LLC | 519,825 | $55.3M | 0.64% | −2,612−0.5% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 515,122 | $54.7M | 0.68% | −14,798−2.8% | Reduced |
| Marathon Asset Mgmt Ltd | 510,332 | $54.6M | 1.53% | −77,408−13.2% | Reduced |
| Dearborn Partners LLC | 508,674 | $54.1M | 2.13% | +856+0.2% | Added |
| United Capital Financial Advisers, LLC | 507,096 | $53.9M | 0.30% | −25,001−4.7% | Reduced |
| AE Wealth Management LLC | 502,529 | $53.5M | 0.34% | +71,588+16.6% | Added |
| CWM, LLC | 499,602 | $53.2M | 0.36% | −11,524−2.3% | Reduced |
| Tredje AP-fonden | 499,287 | $53.1M | 0.83% | −43,553−8.0% | Reduced |
| Empire Life Investments Inc. | 493,186 | $52.5M | 3.73% | −57,458−10.4% | Reduced |
| Stephens Inc | 493,034 | $52.5M | 1.01% | −17,481−3.4% | Reduced |
| Fort Pitt Capital Group, LLC | 489,758 | $52.1M | 2.01% | +21,120+4.5% | Added |
| Cookson Peirce & Co Inc | 486,879 | $51.8M | 3.32% | +6,012+1.3% | Added |
| Harvest Portfolios Group Inc. | 481,263 | $51.2M | 2.51% | +43,523+9.9% | Added |
| MML Investors Services, LLC | 480,899 | $51.2M | 0.36% | −37,031−7.1% | Reduced |
| IFM Investors Pty Ltd | 480,561 | $51.1M | 0.78% | +14,294+3.1% | Added |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 480,344 | $51.1M | 0.92% | +18,953+4.1% | Added |
| Cambridge Investment Research Advisors, Inc. | 478,881 | $50.9M | 0.25% | +314+0.1% | Added |
| Heritage Wealth Advisors | 477,021 | $50.8M | 2.83% | +18,949+4.1% | Added |
| Border to Coast Pensions Partnership Ltd | 475,223 | $50.6M | 1.36% | +68,280+16.8% | Added |
| Donaldson Capital Management, LLC | 473,231 | $50.3M | 2.38% | −170,069−26.4% | Reduced |
| Varma Mutual Pension Insurance Co | 472,926 | $50.3M | 0.61% | −20,000−4.1% | Reduced |
| Birch Hill Investment Advisors LLC | 470,875 | $50.1M | 3.11% | −135,805−22.4% | Reduced |
| B. Metzler seel. Sohn & Co. AG | 465,941 | $49.6M | 0.77% | +22,879+5.2% | Added |
| Employees Provident Fund Board | 463,449 | $49.3M | 1.27% | +88,449+23.6% | Added |
| PFM Health Sciences, LP | 461,118 | $49.1M | 2.26% | +93,484+25.4% | Added |
| Fukoku Mutual Life Insurance Co | 454,846 | $48.4M | 4.38% | 00.0% | Unchanged |