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, 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
- 3,855
- +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
- 1,509 more reduced
53 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 | 3,855 | $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 | 3,502 | $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 |
|---|---|---|---|---|---|
| S&CO Inc | 425,528 | $54.7M | 3.16% | 00.0% | Unchanged |
| JustInvest LLC | 425,518 | $54.7M | 0.45% | +15,660+3.8% | Added |
| CORDA Investment Management, LLC. | 420,154 | $54.0M | 3.31% | −7,372−1.7% | Reduced |
| Vaughan David Investments LLC | 418,482 | $53.8M | 1.07% | +3,973+1.0% | Added |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 416,139 | $53.5M | 1.61% | +122,648+41.8% | Added |
| Systematic Alpha Investments, LLC | 410,682 | $52.8M | 1.42% | 00.0% | Unchanged |
| Rakuten Investment Management, Inc. | 404,114 | $52.3M | 0.15% | +35,757+9.7% | Added |
| NEOS Investment Management LLC | 404,459 | $52.0M | 0.19% | +40,020+11.0% | Added |
| Public Sector Pension Investment Board | 402,649 | $51.7M | 0.14% | +760+0.2% | Added |
| Fiduciary Trust Co | 401,189 | $51.6M | 0.56% | −5,193−1.3% | Reduced |
| Raiffeisen Bank International AG | 397,662 | $51.4M | 0.61% | −15,371−3.7% | Reduced |
| Edmond de Rothschild Holding S.A. | 399,582 | $51.3M | 0.68% | +35,464+9.7% | Added |
| Varma Mutual Pension Insurance Co | 399,574 | $51.3M | 0.27% | −7,300−1.8% | Reduced |
| Panagora Asset Management Inc | 393,429 | $50.6M | 0.16% | +245,860+166.6% | Added |
| United Super Pty Ltd in its capacity as Trustee for the Construction & Building Unions Superannuation Fund | 393,305 | $50.5M | 0.90% | −106,500−21.3% | Reduced |
| Huntington National Bank | 392,951 | $50.5M | 0.25% | +9,988+2.6% | Added |
| Glenmede Trust Co NA | 391,031 | $50.2M | 0.22% | −130,347−25.0% | Reduced |
| Andra AP-fonden | 389,285 | $50.0M | 0.57% | +24,800+6.8% | Added |
| Northwestern Mutual Wealth Management Co | 386,735 | $49.7M | 0.03% | −40,376−9.5% | Reduced |
| Vontobel Holding Ltd. | 385,052 | $49.5M | 0.17% | −2,472−0.6% | Reduced |
| Meyer Handelman Co | 382,328 | $49.1M | 1.39% | +1,623+0.4% | Added |
| Glenview Trust Co | 381,609 | $49.0M | 0.68% | +4,717+1.3% | Added |
| Lido Advisors, LLC | 378,859 | $48.9M | 0.17% | +48,658+14.7% | Added |
| MAI Capital Management | 380,217 | $48.9M | 0.19% | +45,194+13.5% | Added |
| Point72 Asset Management, L.P. | 380,081 | $48.8M | 0.07% | −540,996−58.7% | Reduced |
| Illinois Municipal Retirement Fund | 379,986 | $48.8M | 0.55% | −107,448−22.0% | Reduced |
| RMB Capital Management, LLC | 375,369 | $48.5M | 0.75% | −68,269−15.4% | Reduced |
| Distillate Capital Partners LLC | 377,115 | $48.5M | 2.52% | −69,800−15.6% | Reduced |
| Ferguson Wellman Capital Management, Inc | 376,644 | $48.4M | 0.59% | −9,312−2.4% | Reduced |
| Capital Investment Advisors, LLC | 376,564 | $48.4M | 0.64% | +6,782+1.8% | Added |
| Utah Retirement Systems | 375,627 | $48.3M | 0.46% | −28,429−7.0% | Reduced |
| Life Cycle Investment Partners Ltd | 371,133 | $47.7M | 0.22% | +371,133 | New |
| Police & Firemen's Retirement System of New Jersey | 370,904 | $47.7M | 0.36% | −11,732−3.1% | Reduced |
| British Columbia Investment Management Corp | 370,664 | $47.6M | 0.30% | +28,580+8.4% | Added |
| Sanctuary Advisors, LLC | 370,246 | $47.6M | 0.22% | −35,841−8.8% | Reduced |
| La Banque Postale Asset Management SA | 369,803 | $47.5M | 0.47% | +172,881+87.8% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 369,659 | $47.5M | 0.30% | −37,610−9.2% | Reduced |
| Westwood Holdings Group Inc. | 368,247 | $47.3M | 0.36% | −240,381−39.5% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 366,500 | $47.1M | 0.32% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 373,604 | $46.8M | 0.07% | −298,931−44.4% | Reduced |
| Beacon Pointe Advisors, LLC | 363,066 | $46.7M | 0.22% | −3,995−1.1% | Reduced |
| Jefferies Financial Group Inc. | 362,956 | $46.6M | 0.43% | +1,268+0.4% | Added |
| Smith Chas P & Associates Pa Cpas | 359,598 | $46.2M | 2.34% | −7,925−2.2% | Reduced |
| Ethic Inc. | 358,041 | $46.0M | 0.57% | +31,744+9.7% | Added |
| Integral Health Asset Management, LLC | 350,000 | $45.0M | 1.85% | −75,000−17.6% | Reduced |
| Letko, Brosseau & Associates Inc | 347,489 | $44.7M | 0.66% | −10,530−2.9% | Reduced |
| Advisors Asset Management, Inc. | 346,193 | $44.5M | 0.68% | −3,283−0.9% | Reduced |
| TD Waterhouse Canada Inc. | 354,395 | $44.5M | 0.12% | −43,595−11.0% | Reduced |
| Conning Inc. | 344,967 | $44.3M | 1.33% | +11,936+3.6% | Added |
| Waters Parkerson & Co., LLC | 344,962 | $44.3M | 2.19% | −6,615−1.9% | Reduced |
| Prudential PLC | 344,478 | $44.3M | 0.31% | +12,041+3.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 349,782 | $44.3M | 0.05% | −81,256−18.9% | Reduced |
| New York Life Investment Management LLC | 343,960 | $44.2M | 0.31% | −790−0.2% | Reduced |
| Nissay Asset Management Corp | 336,267 | $43.2M | 0.18% | +6,635+2.0% | Added |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 332,735 | $42.8M | 0.41% | −4,294−1.3% | Reduced |
| Kempen Capital Management N.V. | 331,836 | $42.6M | 0.33% | −191,123−36.5% | Reduced |
| Pinnacle Financial Partners, Inc. | 324,931 | $41.8M | 0.28% | +4,610+1.4% | Added |
| Kestra Advisory Services, LLC | 323,733 | $41.6M | 0.13% | −14,279−4.2% | Reduced |
| Norris Perne & French LLP | 319,460 | $41.1M | 1.75% | +615+0.2% | Added |
| Steward Partners Investment Advisory, LLC | 318,918 | $41.0M | 0.21% | +13,520+4.4% | Added |
| Wealthfront Advisers LLC | 317,659 | $40.8M | 0.08% | +6,380+2.0% | Added |
| Welch & Forbes LLC | 316,952 | $40.7M | 0.49% | −416−0.1% | Reduced |
| Heritage Investors Management Corp | 316,592 | $40.7M | 1.13% | −15,875−4.8% | Reduced |
| Public Employees Retirement Association of Colorado | 313,830 | $40.3M | 0.14% | −7,116−2.2% | Reduced |
| Willis Investment Counsel | 312,767 | $40.2M | 1.92% | −951−0.3% | Reduced |
| Northwest & Ethical Investments L.P. | 311,108 | $40.0M | 0.93% | −40,621−11.5% | Reduced |
| Cullen/Frost Bankers, Inc. | 309,626 | $39.8M | 0.39% | +8,684+2.9% | Added |
| Abn Amro Investment Solutions | 309,009 | $39.7M | 0.34% | +75,355+32.3% | Added |
| Howard Capital Management Group, LLC | 307,822 | $39.6M | 2.42% | −976−0.3% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 306,379 | $39.4M | 0.06% | −532,236−63.5% | Reduced |
| Oregon Public Employees Retirement Fund | 303,684 | $39.0M | 0.42% | +19,456+6.8% | Added |
| Generali Asset Management SPA SGR | 303,564 | $39.0M | 0.71% | +19,480+6.9% | Added |
| Private Wealth Partners, LLC | 301,750 | $38.8M | 2.78% | −7,588−2.5% | Reduced |
| Vinva Investment Management Ltd | 298,766 | $38.7M | 0.26% | +42,512+16.6% | Added |
| Avanza Fonder AB | 300,014 | $38.6M | 0.84% | +15,007+5.3% | Added |
| State of Alaska, Department of Revenue | 299,881 | $38.5M | 0.38% | −11,804−3.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 295,607 | $38.0M | 0.26% | 00.0% | Unchanged |
| Voleon Capital Management LP | 295,499 | $38.0M | 0.69% | +222,820+306.6% | Added |
| Elo Mutual Pension Insurance Co | 292,589 | $37.6M | 0.48% | +73,975+33.8% | Added |
| Sequoia Financial Advisors, LLC | 292,117 | $37.5M | 0.19% | −4,929−1.7% | Reduced |
| Douglass Winthrop Advisors, LLC | 291,325 | $37.4M | 0.65% | −1,003−0.3% | Reduced |
| Horizon Investments, LLC | 291,282 | $37.4M | 0.41% | +13,620+4.9% | Added |
| Hancock Whitney Corp | 291,028 | $37.4M | 0.62% | −8,202−2.7% | Reduced |
| Gabelli Funds LLC | 288,700 | $37.1M | 0.24% | +220+0.1% | Added |
| Bradley Foster & Sargent Inc | 287,164 | $36.9M | 0.52% | +2,459+0.9% | Added |
| Massachusetts Financial Services Co | 256,668 | $36.4M | 0.01% | −15,161−5.6% | Reduced |
| Shelton Capital Management | 282,635 | $36.3M | 0.67% | +26,822+10.5% | Added |
| EP Wealth Advisors, LLC | 282,377 | $36.3M | 0.14% | +87,931+45.2% | Added |
| Quintet Private Bank (Europe) S.A. | 280,988 | $36.1M | 2.25% | −12,083−4.1% | Reduced |
| Concurrent Investment Advisors, LLC | 280,871 | $36.1M | 0.31% | +26,733+10.5% | Added |
| Wesbanco Bank Inc | 280,575 | $36.1M | 0.90% | −1,855−0.7% | Reduced |
| Natixis | 280,187 | $36.0M | 0.17% | −229,869−45.1% | Reduced |
| Americana Partners, LLC | 280,165 | $36.0M | 0.81% | +14,134+5.3% | Added |
| Factory Mutual Insurance Co | 280,024 | $36.0M | 0.34% | −1,000−0.4% | Reduced |
| OP Asset Management Ltd | 278,454 | $35.8M | 0.38% | +21,661+8.4% | Added |
| Whittier Trust Co of Nevada Inc | 276,423 | $35.6M | 0.67% | −3,632−1.3% | Reduced |
| Investment Management Corp of Ontario | 276,725 | $35.6M | 0.45% | +72,873+35.7% | Added |
| Stephens Inc | 272,973 | $35.5M | 0.40% | +670.0% | Added |
| ASR Vermogensbeheer N.V. | 275,102 | $35.3M | 0.36% | −3,835−1.4% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 274,795 | $35.3M | 0.83% | +4,330+1.6% | Added |