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 2023
Institutional positions in Merck & Co., Inc. as of Sep 30, 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
- 3,222
- +1 vs. Q2 2023
- Shares held
- 1.92B
- −11.1M (−0.6%) vs. Q2 2023
- Total value
- $197.7B
- −$24.4B (−11.0%) vs. Q2 2023
- New holders
- 148
- 1,298 more added
- Sold out
- 147
- 1,410 more reduced
41 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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 | 3,813 | $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 2023
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Public Employees Retirement Association of Colorado | 2,422,834 | $249.4M | 1.28% | −68,663−2.8% | Reduced |
| Baird Financial Group, Inc. | 2,382,813 | $245.3M | 0.67% | −24,602−1.0% | Reduced |
| M&T Bank Corp | 2,377,807 | $244.8M | 0.98% | −67,379−2.8% | Reduced |
| LPL Financial LLC | 2,341,171 | $241.0M | 0.17% | +36,514+1.6% | Added |
| Antipodes Partners Ltd | 2,269,999 | $236.8M | 7.61% | +520,841+29.8% | Added |
| National Bank of Canada | 2,273,549 | $233.0M | 0.43% | +1,233,862+118.7% | Added |
| KBC Group NV | 2,199,619 | $226.4M | 0.92% | +412,320+23.1% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 2,123,719 | $218.6M | 0.55% | −335,809−13.7% | Reduced |
| BNP Paribas Arbitrage, SA | 2,117,624 | $218.0M | 0.48% | +726,956+52.3% | Added |
| Russell Investments Group, Ltd. | 2,084,861 | $215.5M | 0.43% | +52,599+2.6% | Added |
| ABN AMRO Bank N.V. | 2,085,973 | $214.8M | 3.86% | −25,669−1.2% | Reduced |
| US Bancorp | 2,080,951 | $214.4M | 0.35% | +402,136+24.0% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 2,071,723 | $213.3M | 1.24% | +206,306+11.1% | Added |
| Marshall Wace, LLP | 2,051,405 | $211.2M | 0.45% | +1,875,318+1,065.0% | Added |
| Capital Research Global Investors | 2,040,284 | $210.0M | 0.06% | +1,141+0.1% | Added |
| Thornburg Investment Management Inc | 2,016,111 | $207.6M | 3.41% | +529,646+35.6% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 1,960,082 | $201.8M | 1.32% | −299,048−13.2% | Reduced |
| Thrivent Financial for Lutherans | 1,947,572 | $200.6M | 0.48% | −149,575−7.1% | Reduced |
| Janney Montgomery Scott LLC | 1,869,602 | $192.5M | 0.72% | +11,911+0.6% | Added |
| SRB Corp | 1,805,364 | $185.9M | 11.26% | −3,865−0.2% | Reduced |
| Aviva PLC | 1,789,936 | $184.3M | 0.77% | −76,285−4.1% | Reduced |
| Advisor Group Holdings, Inc. | 1,754,278 | $180.7M | 0.27% | +406,440+30.2% | Added |
| Pictet Asset Management Holding SA | 1,755,049 | $180.7M | 0.22% | +1,755,049 | New |
| King Luther Capital Management Corp | 1,708,020 | $175.8M | 0.91% | +39,354+2.4% | Added |
| D. E. Shaw & Co., Inc. | 1,692,140 | $174.2M | 0.29% | +378,731+28.8% | Added |
| Mackenzie Financial Corp | 1,696,207 | $172.6M | 0.29% | −65,907−3.7% | Reduced |
| American Century Companies Inc | 1,671,202 | $172.1M | 0.13% | −230,037−12.1% | Reduced |
| STRS Ohio | 1,666,209 | $171.5M | 0.76% | −25,426−1.5% | Reduced |
| Eagle Asset Management Inc | 1,665,917 | $171.5M | 1.02% | −76,713−4.4% | Reduced |
| Storebrand Asset Management AS | 1,646,549 | $169.5M | 0.81% | −22,099−1.3% | Reduced |
| Handelsbanken Fonder AB | 1,644,866 | $169.3M | 0.95% | +108,654+7.1% | Added |
| Toronto Dominion Bank | 1,638,806 | $168.7M | 0.28% | −444,130−21.3% | Reduced |
| Bessemer Group Inc | 1,624,424 | $167.2M | 0.37% | −8,854−0.5% | Reduced |
| Bridgewater Associates, LP | 1,623,248 | $167.1M | 1.01% | +262,304+19.3% | Added |
| Mariner, LLC | 1,595,509 | $164.3M | 0.44% | +59,234+3.9% | Added |
| Public Sector Pension Investment Board | 1,577,393 | $162.4M | 1.20% | +491,847+45.3% | Added |
| Lazard Freres Gestion S.A.S. | 1,600,647 | $162.2M | 5.15% | +10,032+0.6% | Added |
| Jennison Associates LLC | 1,563,253 | $160.9M | 0.14% | −55,015−3.4% | Reduced |
| Railway Pension Investments Ltd | 1,559,150 | $160.5M | 1.74% | −129,000−7.6% | Reduced |
| AXA S.A. | 1,546,004 | $159.2M | 0.56% | −172,109−10.0% | Reduced |
| SEI Investments Co | 1,517,525 | $156.2M | 0.28% | +10,763+0.7% | Added |
| Lazard Asset Management LLC | 1,514,413 | $155.9M | 0.21% | −21,205−1.4% | Reduced |
| Susquehanna International Group, LLP | 1,509,485 | $155.4M | 0.24% | +79,153+5.5% | Added |
| Chevy Chase Trust Holdings, Inc. | 1,485,135 | $152.9M | 0.60% | −31,745−2.1% | Reduced |
| Kempen Capital Management N.V. | 1,480,490 | $152.4M | 2.82% | +196,007+15.3% | Added |
| Voya Investment Management LLC | 1,479,529 | $152.3M | 0.17% | −7,557−0.5% | Reduced |
| Regions Financial Corp | 1,457,487 | $150.0M | 1.35% | −9,384−0.6% | Reduced |
| Commonwealth Equity Services, LLC | 1,447,121 | $149.0M | 0.31% | −19,856−1.4% | Reduced |
| Retirement Systems of Alabama | 1,446,857 | $149.0M | 0.70% | −2,943−0.2% | Reduced |
| State of New Jersey Common Pension Fund D | 1,445,672 | $148.8M | 0.54% | −50,222−3.4% | Reduced |
| State of Wisconsin Investment Board | 1,437,902 | $148.0M | 0.46% | −177,048−11.0% | Reduced |
| Public Employees Retirement System of Ohio | 1,419,562 | $146.1M | 0.65% | −104,380−6.8% | Reduced |
| Boston Partners | 1,391,240 | $143.2M | 0.20% | −52,937−3.7% | Reduced |
| Asset Management One Co.,Ltd. | 1,390,462 | $143.1M | 0.64% | −37,150−2.6% | Reduced |
| Epoch Investment Partners, Inc. | 1,363,398 | $140.4M | 0.89% | −17,274−1.3% | Reduced |
| Assenagon Asset Management S.A. | 1,346,032 | $138.6M | 0.48% | +817,128+154.5% | Added |
| Commerce Bank | 1,338,700 | $137.8M | 1.09% | −13,975−1.0% | Reduced |
| Magnetar Financial LLC | 1,286,768 | $132.5M | 3.39% | +632,837+96.8% | Added |
| Brandywine Global Investment Management, LLC | 1,263,293 | $130.1M | 1.14% | −71,725−5.4% | Reduced |
| Treasurer of the State of North Carolina | 1,238,770 | $127.5M | 0.69% | +8,803+0.7% | Added |
| Mn Services Vermogensbeheer B.V. | 1,233,299 | $127.0M | 1.22% | +21,100+1.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,231,880 | $126.8M | 0.56% | +11,970+1.0% | Added |
| State of Tennessee, Treasury Department | 1,222,801 | $125.9M | 0.51% | −16,370−1.3% | Reduced |
| Qube Research & Technologies Ltd | 1,214,174 | $125.0M | 0.37% | +830,027+216.1% | Added |
| Virginia Retirement Systems Et Al | 1,209,393 | $124.5M | 1.23% | −104,000−7.9% | Reduced |
| Rockefeller Capital Management L.P. | 1,191,070 | $122.6M | 0.47% | +68,837+6.1% | Added |
| Two Sigma Advisers, LP | 1,188,698 | $122.4M | 0.31% | +1,184,798+30,379.4% | Added |
| Mirae Asset Global Investments Co., Ltd. | 1,176,470 | $122.0M | 0.27% | +122,112+11.6% | Added |
| Natixis Advisors, L.P. | 1,176,543 | $121.1M | 0.37% | −212,763−15.3% | Reduced |
| Keybank National Association | 1,153,206 | $118.7M | 0.57% | −20,016−1.7% | Reduced |
| Comerica Bank | 1,140,296 | $117.4M | 0.61% | −2,262,207−66.5% | Reduced |
| Nomura Asset Management Co Ltd | 1,135,412 | $116.9M | 0.55% | −80,214−6.6% | Reduced |
| Captrust Financial Advisors | 1,133,599 | $116.7M | 0.45% | +98,848+9.6% | Added |
| Royal London Asset Management Ltd | 1,119,964 | $115.4M | 0.37% | +55,012+5.2% | Added |
| CIBC Private Wealth Group, LLC | 1,110,561 | $114.3M | 0.27% | −61,382−5.2% | Reduced |
| Penserra Capital Management LLC | 1,091,369 | $112.4M | 2.32% | −144,292−11.7% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1,081,662 | $111.4M | 0.34% | −168,008−13.4% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 1,077,977 | $111.0M | 0.37% | +950,898+748.3% | Added |
| Great Lakes Advisors, LLC | 1,062,668 | $109.4M | 1.00% | +37,135+3.6% | Added |
| Balyasny Asset Management LLC | 1,061,690 | $109.3M | 0.31% | +126,466+13.5% | Added |
| OrbiMed Advisors LLC | 1,055,000 | $108.6M | 2.51% | +1,055,000 | New |
| Brandes Investment Partners, LP | 988,848 | $101.8M | 1.99% | +48,574+5.2% | Added |
| Calamos Advisors LLC | 970,607 | $99.9M | 0.54% | +188,466+24.1% | Added |
| Employees Provident Fund Board | 968,402 | $99.7M | 2.26% | +270,503+38.8% | Added |
| Ci Investments Inc. | 966,139 | $99.5M | 0.55% | +89,721+10.2% | Added |
| Rathbone Brothers plc | 952,099 | $98.0M | 0.71% | +98,502+11.5% | Added |
| Glenmede Trust Co NA | 951,219 | $97.9M | 0.56% | −74,786−7.3% | Reduced |
| Allspring Global Investments Holdings, LLC | 943,610 | $97.1M | 0.17% | +38,185+4.2% | Added |
| Federated Hermes, Inc. | 938,957 | $96.7M | 0.26% | +157,300+20.1% | Added |
| Squarepoint Ops LLC | 933,411 | $96.1M | 0.47% | +720,233+337.9% | Added |
| Fifth Third Bancorp | 932,068 | $96.0M | 0.44% | −13,955−1.5% | Reduced |
| CIBC World Markets Inc. | 901,890 | $92.8M | 0.33% | +17,377+2.0% | Added |
| Two Sigma Investments, LP | 898,178 | $92.5M | 0.26% | +898,178 | New |
| Creative Planning | 893,239 | $92.0M | 0.12% | +193,564+27.7% | Added |
| Natixis | 883,193 | $90.9M | 0.72% | +392,860+80.1% | Added |
| Woodline Partners LP | 882,500 | $90.9M | 1.07% | 00.0% | Unchanged |
| Cerity Partners LLC | 870,523 | $89.8M | 0.44% | −218,760−20.1% | Reduced |
| Banque Pictet & Cie SA | 867,923 | $89.4M | 1.05% | +23,647+2.8% | Added |
| Zacks Investment Management | 864,126 | $89.0M | 1.15% | −306,414−26.2% | Reduced |
| Crawford Investment Counsel Inc | 851,189 | $87.6M | 1.90% | −9,914−1.2% | Reduced |