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, Q2 2026
Institutional positions in Merck & Co., Inc. as of Jun 30, 2026. 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
- 3,854
- +96 vs. Q1 2026
- Shares held
- 1.98B
- +52.6M (+2.7%) vs. Q1 2026
- Total value
- $254.3B
- +$23.0B (+9.9%) vs. Q1 2026
- New holders
- 214
- 1,635 more added
- Sold out
- 118
- 1,508 more reduced
54 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Thrivent Financial for Lutherans | 2,340,397 | $300.7M | 0.51% | −11,272−0.5% | Reduced |
| TD Asset Management Inc | 2,334,726 | $300.0M | 0.26% | +46,150+2.0% | Added |
| Smead Capital Management, Inc. | 2,334,468 | $300.0M | 6.43% | −136,930−5.5% | Reduced |
| Truist Financial Corp | 2,308,510 | $296.6M | 0.36% | +87,425+3.9% | Added |
| Bank of Nova Scotia | 2,191,725 | $281.7M | 0.43% | +734,487+50.4% | Added |
| Danske Bank A/S | 2,152,022 | $276.5M | 0.55% | +372,843+21.0% | Added |
| State Board of Administration of Florida Retirement System | 2,140,853 | $275.1M | 0.46% | −63,153−2.9% | Reduced |
| Beutel, Goodman & Co Ltd. | 2,073,206 | $266.4M | 1.96% | −956,685−31.6% | Reduced |
| Manufacturers Life Insurance Company, The | 2,073,176 | $266.4M | 0.21% | +227,589+12.3% | Added |
| Captrust Financial Advisors | 2,054,383 | $264.0M | 0.40% | +211,525+11.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 2,033,072 | $261.2M | 0.50% | +245,665+13.7% | Added |
| Adage Capital Partners GP, L.L.C. | 2,030,023 | $260.9M | 0.37% | −657,416−24.5% | Reduced |
| Cullen Capital Management LLC | 2,016,795 | $259.2M | 2.55% | −56,559−2.7% | Reduced |
| APG Asset Management N.V. | 2,259,422 | $253.9M | 0.62% | +551,301+32.3% | Added |
| Handelsbanken Fonder AB | 1,959,794 | $251.8M | 0.72% | +95,489+5.1% | Added |
| Citadel Advisors LLC | 1,933,667 | $248.5M | 0.14% | −1,887,560−49.4% | Reduced |
| Capital Research Global Investors | 1,925,013 | $247.4M | 0.03% | −136,558−6.6% | Reduced |
| New York State Teachers Retirement System | 1,919,612 | $246.7M | 0.46% | −138,027−6.7% | Reduced |
| Prudential Financial Inc | 1,913,536 | $245.9M | 0.27% | −48,796−2.5% | Reduced |
| Brandes Investment Partners, LP | 1,910,947 | $245.6M | 1.72% | −391,615−17.0% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 1,912,337 | $244.9M | 0.37% | −141,737−6.9% | Reduced |
| Korea Investment CORP | 1,861,405 | $239.2M | 0.45% | −35,746−1.9% | Reduced |
| Rockefeller Capital Management L.P. | 1,848,360 | $237.5M | 0.36% | +95,462+5.4% | Added |
| Lazard Asset Management LLC | 1,843,591 | $236.9M | 0.36% | −1,410,740−43.3% | Reduced |
| Nomura Asset Management Co Ltd | 1,776,387 | $228.3M | 0.49% | +196,532+12.4% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 1,727,562 | $222.0M | 0.49% | +141,457+8.9% | Added |
| SEI Investments Co | 1,713,402 | $220.2M | 0.19% | −389,054−18.5% | Reduced |
| Storebrand Asset Management AS | 1,685,911 | $216.6M | 0.53% | −62,851−3.6% | Reduced |
| Fayez Sarofim & Co | 1,664,909 | $213.9M | 0.50% | −35,470−2.1% | Reduced |
| SEB Asset Management AB | 1,656,056 | $212.8M | 0.80% | +13,771+0.8% | Added |
| Janney Montgomery Scott LLC | 1,655,632 | $212.7M | 0.41% | −24,032−1.4% | Reduced |
| Alecta Pensionsforsakring, Omsesidigt | 1,640,300 | $210.6M | 0.89% | 00.0% | Unchanged |
| Great Lakes Advisors, LLC | 1,595,891 | $205.1M | 1.56% | +26,504+1.7% | Added |
| Cerity Partners LLC | 1,567,712 | $201.5M | 0.24% | −71,798−4.4% | Reduced |
| US Bancorp | 1,561,329 | $200.6M | 0.22% | +6,582+0.4% | Added |
| Quantinno Capital Management LP | 1,523,212 | $195.7M | 0.24% | +189,923+14.2% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1,506,793 | $193.6M | 0.15% | −198,385−11.6% | Reduced |
| Fifth Third Bancorp | 1,500,619 | $192.8M | 0.31% | −42,778−2.8% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,482,295 | $190.5M | 0.36% | +457,995+44.7% | Added |
| Mondrian Investment Partners LTD | 1,473,945 | $189.4M | 3.41% | −107,582−6.8% | Reduced |
| Toronto Dominion Bank | 1,468,613 | $188.7M | 0.31% | +507,558+52.8% | Added |
| DJE Kapital AG | 1,431,324 | $187.5M | 3.53% | +125,226+9.6% | Added |
| Pictet Asset Management Holding SA | 1,451,505 | $186.5M | 0.18% | −34,920−2.3% | Reduced |
| CIBC World Markets Inc. | 1,447,507 | $186.0M | 0.31% | +207,556+16.7% | Added |
| M&T Bank Corp | 1,434,057 | $184.3M | 0.54% | −25,725−1.8% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 1,625,531 | $183.5M | 0.31% | +193,887+13.5% | Added |
| Candriam Luxembourg S.C.A. | 1,419,478 | $182.2M | 0.82% | +96,824+7.3% | Added |
| Asset Management One Co.,Ltd. | 1,380,043 | $177.3M | 0.46% | −61,263−4.3% | Reduced |
| Colony Group, LLC | 1,375,512 | $176.8M | 0.18% | −60,192−4.2% | Reduced |
| Van Eck Associates Corp | 1,370,439 | $176.1M | 0.11% | −422,266−23.6% | Reduced |
| Brown Advisory Inc | 1,365,877 | $175.5M | 0.27% | +24,584+1.8% | Added |
| Creative Planning | 1,354,765 | $174.1M | 0.10% | +46,468+3.6% | Added |
| PFA Pension, Forsikringsaktieselskab | 1,341,298 | $172.4M | 0.44% | −126,541−8.6% | Reduced |
| Treasurer of the State of North Carolina | 1,326,149 | $170.4M | 0.44% | +178,160+15.5% | Added |
| State of Wisconsin Investment Board | 1,318,963 | $169.5M | 0.34% | −47,038−3.4% | Reduced |
| Swiss Life Asset Management Ltd | 1,305,364 | $167.7M | 0.69% | −76,487−5.5% | Reduced |
| Regions Financial Corp | 1,304,390 | $167.6M | 1.00% | −12,980−1.0% | Reduced |
| KLP Kapitalforvaltning AS | 1,277,070 | $165.0M | 0.53% | +80,200+6.7% | Added |
| Vanguard Investments Australia, Ltd. | 1,263,127 | $162.3M | 0.40% | +24,973+2.0% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 1,252,379 | $160.9M | 0.77% | +70,200+5.9% | Added |
| Ci Investments Inc. | 1,244,906 | $160.0M | 0.51% | +7,123+0.6% | Added |
| Commerce Bank | 1,238,538 | $159.2M | 0.70% | +50,507+4.3% | Added |
| Cetera Investment Advisers | 1,229,081 | $157.9M | 0.14% | +35,209+2.9% | Added |
| Chevy Chase Trust Holdings, Inc. | 1,222,498 | $157.1M | 0.41% | −30,630−2.4% | Reduced |
| Quilter Plc | 1,192,514 | $153.2M | 2.31% | +5,794+0.5% | Added |
| UniSuper Management Pty Ltd | 1,188,632 | $152.7M | 0.79% | +88,830+8.1% | Added |
| Kames Capital plc | 1,169,722 | $150.3M | 1.60% | −104,784−8.2% | Reduced |
| CIBC Asset Management Inc | 1,155,669 | $148.5M | 0.33% | +412,741+55.6% | Added |
| Commonwealth Equity Services, LLC | 1,149,713 | $147.7M | 0.19% | −72,864−6.0% | Reduced |
| Lazard Freres Gestion S.A.S. | 1,149,281 | $147.7M | 2.56% | +16,923+1.5% | Added |
| KBC Group NV | 1,131,286 | $145.4M | 0.31% | −86,325−7.1% | Reduced |
| Woodline Partners LP | 1,124,149 | $144.5M | 0.45% | +53,069+5.0% | Added |
| Jane Street Group, LLC | 1,121,026 | $144.1M | 0.09% | +769,895+219.3% | Added |
| Macquarie Group Ltd | 1,111,866 | $142.9M | 0.62% | +240,948+27.7% | Added |
| Antipodes Partners Ltd | 1,097,509 | $141.0M | 2.58% | −343,757−23.9% | Reduced |
| Zacks Investment Management | 1,087,644 | $139.8M | 0.99% | +2,394+0.2% | Added |
| King Luther Capital Management Corp | 1,087,068 | $139.7M | 0.57% | +103,451+10.5% | Added |
| Bessemer Group Inc | 1,080,415 | $138.8M | 0.19% | −1,482−0.1% | Reduced |
| Groupama Asset Managment | 1,063,660 | $137.6M | 1.73% | +188,697+21.6% | Added |
| Baird Financial Group, Inc. | 1,064,683 | $136.8M | 0.19% | −98,410−8.5% | Reduced |
| STRS Ohio | 1,058,220 | $136.0M | 0.51% | −40,133−3.7% | Reduced |
| Nomura Asset Management International Inc. | 1,055,302 | $135.6M | 0.20% | −290,416−21.6% | Reduced |
| Epoch Investment Partners, Inc. | 1,050,056 | $134.9M | 0.77% | +348,964+49.8% | Added |
| Qube Research & Technologies Ltd | 1,044,210 | $134.2M | 0.15% | +1,044,210 | New |
| Munich Reinsurance Co Stock Corp in Munich | 1,038,236 | $133.4M | 2.92% | +285,599+37.9% | Added |
| DnB Asset Management AS | 1,009,058 | $129.7M | 0.36% | +111,934+12.5% | Added |
| Man Group plc | 990,469 | $127.3M | 0.23% | +197,302+24.9% | Added |
| Public Employees Retirement System of Ohio | 978,914 | $125.8M | 0.37% | −64,755−6.2% | Reduced |
| Actiam N.V. | 970,317 | $124.7M | 0.96% | −9,364−1.0% | Reduced |
| Causeway Capital Management LLC | 954,932 | $122.7M | 1.33% | +100,720+11.8% | Added |
| Toroso Investments, LLC | 932,100 | $119.8M | 0.29% | +36,308+4.1% | Added |
| MUFG Securities EMEA plc | 926,670 | $119.1M | 1.25% | +824,918+810.7% | Added |
| Blair William & Co | 920,715 | $118.3M | 0.31% | +18,926+2.1% | Added |
| CIBC Bancorp USA Inc. | 917,223 | $117.8M | 0.15% | −129,892−12.4% | Reduced |
| Squarepoint Ops LLC | 909,676 | $116.9M | 0.23% | +78,819+9.5% | Added |
| State of Tennessee, Treasury Department | 900,152 | $115.7M | 0.34% | −64,438−6.7% | Reduced |
| Susquehanna International Group, LLP | 896,527 | $115.2M | 0.10% | −136,695−13.2% | Reduced |
| Advisor Group Holdings, Inc. | 890,015 | $114.4M | 0.13% | +62,769+7.6% | Added |
| Credit Agricole S A | 849,379 | $109.1M | 0.28% | +211,614+33.2% | Added |
| Keybank National Association | 847,233 | $108.9M | 0.36% | −5,817−0.7% | Reduced |