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 2025
Institutional positions in Merck & Co., Inc. as of Dec 31, 2025. 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
- 3,674
- +428 vs. Q3 2025
- Shares held
- 1.96B
- +60.6M (+3.2%) vs. Q3 2025
- Total value
- $206.6B
- +$47.2B (+29.6%) vs. Q3 2025
- New holders
- 555
- 1,379 more added
- Sold out
- 127
- 1,404 more reduced
73 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: 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 2025
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| OP Asset Management Ltd | 277,568 | $29.2M | 0.36% | +3,049+1.1% | Added |
| Factory Mutual Insurance Co | 277,374 | $29.2M | 0.30% | −3,650−1.3% | Reduced |
| Citizens Financial Group Inc | 276,194 | $29.1M | 0.39% | −6,599−2.3% | Reduced |
| Omers Administration Corp | 275,613 | $29.0M | 0.21% | −2,361−0.8% | Reduced |
| ASR Vermogensbeheer N.V. | 273,878 | $28.8M | 0.34% | −2,384−0.9% | Reduced |
| Teachers Retirement System of the State of Kentucky | 271,888 | $28.6M | 0.21% | +73,614+37.1% | Added |
| Saudi Central Bank | 268,430 | $28.5M | 1.06% | −30.0% | Reduced |
| Whittier Trust Co of Nevada Inc | 261,332 | $28.5M | 0.59% | −11,310−4.1% | Reduced |
| Rafferty Asset Management, LLC | 269,620 | $28.4M | 0.10% | −10,228−3.7% | Reduced |
| Mutual of America Capital Management LLC | 266,050 | $28.0M | 0.29% | −4,242−1.6% | Reduced |
| Bridgeway Capital Management, LLC | 265,061 | $27.9M | 0.58% | −43,895−14.2% | Reduced |
| Yousif Capital Management, LLC | 253,035 | $27.7M | 0.30% | −12,636−4.8% | Reduced |
| Transcend Wealth Collective, LLC | 261,371 | $27.5M | 2.14% | −7,109−2.6% | Reduced |
| Davenport & Co LLC | 260,987 | $27.5M | 0.15% | +10,203+4.1% | Added |
| Highland Capital Management, LLC | 260,881 | $27.5M | 1.37% | −1,927−0.7% | Reduced |
| Rathbone Brothers plc | 260,490 | $27.4M | 0.11% | −148,771−36.4% | Reduced |
| Silvercrest Asset Management Group LLC | 259,397 | $27.3M | 0.19% | −3,733−1.4% | Reduced |
| Horizon Investments, LLC | 259,037 | $27.3M | 0.35% | −118,552−31.4% | Reduced |
| Vestcor Inc | 258,377 | $27.2M | 0.78% | −22,707−8.1% | Reduced |
| Evergreen Capital Management LLC | 256,092 | $27.2M | 0.61% | −1,293−0.5% | Reduced |
| Wealthfront Advisers LLC | 257,244 | $27.1M | 0.06% | +46,675+22.2% | Added |
| Abn Amro Investment Solutions | 256,834 | $27.0M | 0.40% | +67,420+35.6% | Added |
| Warren Averett Asset Management, LLC | 256,604 | $27.0M | 0.22% | +124,624+94.4% | Added |
| Kestra Private Wealth Services, LLC | 256,402 | $27.0M | 0.34% | −2,595−1.0% | Reduced |
| Huntington National Bank | 256,352 | $27.0M | 0.16% | −6,380−2.4% | Reduced |
| Pictet & Cie (Europe) SA | 254,135 | $26.8M | 0.53% | −95,157−27.2% | Reduced |
| Norris Perne & French LLP | 252,162 | $26.5M | 1.75% | +28,635+12.8% | Added |
| Cadinha & Co LLC | 252,024 | $26.5M | 4.09% | +240,055+2,005.6% | Added |
| Wilkins Investment Counsel Inc | 250,356 | $26.4M | 3.84% | −16,351−6.1% | Reduced |
| Caxton Associates LLP | 250,000 | $26.3M | 0.52% | +189,055+310.2% | Added |
| Integral Health Asset Management, LLC | 250,000 | $26.3M | 1.33% | +250,000 | New |
| NorthCrest Asset Manangement, LLC | 244,200 | $26.2M | 0.59% | +9,224+3.9% | Added |
| Ceredex Value Advisors LLC | 248,609 | $26.2M | 0.79% | −59,123−19.2% | Reduced |
| Cresset Asset Management, LLC | 246,148 | $26.1M | 0.11% | +2,143+0.9% | Added |
| Blue Chip Partners, Inc. | 244,829 | $25.8M | 1.87% | +16,411+7.2% | Added |
| Moran Wealth Management, LLC | 236,969 | $24.9M | 0.76% | +22,157+10.3% | Added |
| Bryn Mawr Trust Co | 236,691 | $24.9M | 0.58% | −3,282−1.4% | Reduced |
| Crossmark Global Holdings, Inc. | 235,906 | $24.8M | 0.36% | −19,298−7.6% | Reduced |
| Concurrent Investment Advisors, LLC | 233,480 | $24.6M | 0.28% | +137,690+143.7% | Added |
| Canada Post Corp Registered Pension Plan | 233,441 | $24.6M | 0.94% | +35,631+18.0% | Added |
| Roffman Miller Associates Inc | 231,523 | $24.4M | 1.33% | +19,717+9.3% | Added |
| WSFS Capital Management, LLC | 230,574 | $24.3M | 1.17% | −12,118−5.0% | Reduced |
| Brown Brothers Harriman & Co | 230,359 | $24.2M | 0.13% | +14,804+6.9% | Added |
| Godsey & Gibb Associates | 230,345 | $24.2M | 2.18% | +3,258+1.4% | Added |
| Klingenstein Fields & Co LP | 229,918 | $24.2M | 0.91% | −2,403−1.0% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 228,817 | $24.1M | 0.62% | −20,181−8.1% | Reduced |
| HB Wealth Management, LLC | 228,194 | $24.0M | 0.16% | +1,304+0.6% | Added |
| Everett Harris & Co | 225,183 | $23.7M | 0.29% | +4,109+1.9% | Added |
| Ingalls & Snyder LLC | 222,429 | $23.4M | 0.86% | −3,005−1.3% | Reduced |
| Americana Partners, LLC | 220,405 | $23.2M | 0.64% | −523−0.2% | Reduced |
| Dearborn Partners LLC | 220,100 | $23.2M | 1.16% | −8,799−3.8% | Reduced |
| United Asset Strategies, Inc. | 217,195 | $22.9M | 1.76% | +26,930+14.2% | Added |
| Cullen/Frost Bankers, Inc. | 215,997 | $22.7M | 0.25% | −9,584−4.2% | Reduced |
| Eastern Bank | 213,237 | $22.4M | 0.39% | −10,373−4.6% | Reduced |
| RE Advisers Corp | 212,677 | $22.4M | 0.59% | −26,427−11.1% | Reduced |
| RWC Asset Management LLP | 212,417 | $22.4M | 1.10% | −7,065−3.2% | Reduced |
| Allworth Financial LP | 211,931 | $22.3M | 0.09% | +88,256+71.4% | Added |
| Stack Financial Management, Inc | 210,381 | $22.1M | 1.69% | −5,917−2.7% | Reduced |
| Flputnam Investment Management Co | 210,300 | $22.1M | 0.32% | −4,083−1.9% | Reduced |
| Aptus Capital Advisors, LLC | 207,526 | $21.8M | 0.19% | −46,220−18.2% | Reduced |
| Cary Street Partners Financial LLC | 206,848 | $21.8M | 0.54% | +5,577+2.8% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 205,371 | $21.6M | 1.10% | +205,371 | New |
| General American Investors Co Inc | 204,326 | $21.5M | 1.34% | 00.0% | Unchanged |
| Boston Common Asset Management, LLC | 203,207 | $21.4M | 1.29% | −44,511−18.0% | Reduced |
| South Dakota Investment Council | 202,458 | $21.3M | 0.41% | −5,300−2.6% | Reduced |
| First National Trust Co | 201,859 | $21.2M | 0.71% | +417+0.2% | Added |
| TCTC Holdings, LLC | 201,792 | $21.2M | 0.63% | −1,271−0.6% | Reduced |
| Diversified Trust Co | 200,558 | $21.1M | 0.39% | −7,280−3.5% | Reduced |
| Empower Advisory Group, LLC | 198,911 | $20.9M | 0.06% | +31,638+18.9% | Added |
| Abner Herrman & Brock LLC | 198,314 | $20.9M | 2.13% | +187,919+1,807.8% | Added |
| Payden & Rygel | 198,100 | $20.9M | 1.45% | +190+0.1% | Added |
| Fideuram - Intesa Sanpaolo Private Banking S.P.A. | 196,854 | $20.7M | 0.75% | +196,854 | New |
| Stratos Wealth Partners, LTD. | 196,716 | $20.7M | 0.23% | +6,291+3.3% | Added |
| HealthInvest Partners AB | 195,768 | $20.6M | 6.57% | +34,855+21.7% | Added |
| EP Wealth Advisors, LLC | 195,734 | $20.6M | 0.11% | +195,734 | New |
| Scotia Capital Inc. | 195,731 | $20.6M | 0.08% | −22,063−10.1% | Reduced |
| Atlantic Union Bankshares Corp | 193,538 | $20.4M | 0.38% | −1,358−0.7% | Reduced |
| Foundation Resource Management Inc | 193,095 | $20.3M | 2.72% | +2,317+1.2% | Added |
| Bruce & Co., Inc. | 192,800 | $20.3M | 6.29% | 00.0% | Unchanged |
| Steel Peak Wealth Management LLC | 190,521 | $20.2M | 0.66% | +43,834+29.9% | Added |
| Danica Pension, Livsforsikringsaktieselskab | 191,871 | $20.2M | 0.29% | +56,400+41.6% | Added |
| ABN AMRO Bank N.V. | 191,811 | $20.2M | 0.19% | −1,727,191−90.0% | Reduced |
| Fisher Funds Management LTD | 190,238 | $20.0M | 0.52% | 00.0% | Unchanged |
| Salem Investment Counselors Inc | 188,483 | $20.0M | 0.56% | −1,165−0.6% | Reduced |
| Allstate Corp | 188,959 | $19.9M | 0.27% | +98,204+108.2% | Added |
| PFM Health Sciences, LP | 187,834 | $19.8M | 2.00% | −48,634−20.6% | Reduced |
| GW Henssler & Associates Ltd | 187,490 | $19.7M | 0.95% | −2,268−1.2% | Reduced |
| HM Payson & Co | 187,478 | $19.7M | 0.28% | −3,712−1.9% | Reduced |
| Stamos Capital Partners, L.P. | 186,805 | $19.7M | 3.16% | −13,254−6.6% | Reduced |
| Philip James Wealth Mangement, LLC | 184,977 | $19.5M | 2.26% | −6,986−3.6% | Reduced |
| Applied Finance Capital Management, LLC | 183,564 | $19.3M | 1.38% | +5,428+3.0% | Added |
| Intact Investment Management Inc. | 183,100 | $19.3M | 0.55% | −17,600−8.8% | Reduced |
| Stillwater Capital Advisors, LLC | 182,508 | $19.2M | 2.06% | +880+0.5% | Added |
| Nemes Rush Group LLC | 182,075 | $19.2M | 1.80% | −2,395−1.3% | Reduced |
| Circle Wealth Management, LLC | 181,376 | $19.1M | 0.29% | +19,145+11.8% | Added |
| Atria Investments LLC | 180,988 | $19.1M | 0.22% | +1,339+0.7% | Added |
| Dakota Wealth Management | 180,797 | $19.0M | 0.34% | +149,486+477.4% | Added |
| Mizuho Securities USA LLC | 180,725 | $18.9M | 0.31% | −1,197−0.7% | Reduced |
| Achmea Investment Management B.V. | 179,311 | $18.9M | 0.48% | −438−0.2% | Reduced |
| Stockman Wealth Management, Inc. | 177,665 | $18.7M | 2.18% | −310−0.2% | Reduced |