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 2025
Institutional positions in Merck & Co., Inc. as of Sep 30, 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
- 3,319
- +42 vs. Q2 2025
- Shares held
- 1.90B
- −25.7M (−1.3%) vs. Q2 2025
- Total value
- $159.8B
- +$6.99B (+4.6%) vs. Q2 2025
- New holders
- 191
- 1,361 more added
- Sold out
- 149
- 1,427 more reduced
60 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Merck & Co., Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Delta Financial Advisors LLC | 12,034 | $1.01M | 0.29% | +146+1.2% | Added |
| Widmann Financial Services, Inc. | 12,046 | $1.01M | 0.64% | +100+0.8% | Added |
| Banco de Sabadell, S.A | 12,055 | $1.01M | 0.67% | −88−0.7% | Reduced |
| Nia Impact Advisors, LLC | 12,095 | $1.02M | 0.33% | +176+1.5% | Added |
| Fragasso Group Inc. | 11,387 | $1.02M | 0.06% | −819−6.7% | Reduced |
| Gibson Wealth Advisors LLC | 12,105 | $1.02M | 0.72% | 00.0% | Unchanged |
| Wimmer Associates 1, LLC | 12,133 | $1.02M | 0.49% | −439−3.5% | Reduced |
| Dynasty Wealth Management, LLC | 12,148 | $1.02M | 0.01% | +12,148 | New |
| Baker Tilly Wealth Management, LLC | 12,154 | $1.02M | 0.23% | +11+0.1% | Added |
| Linden Thomas Advisory Services, LLC | 12,161 | $1.02M | 0.10% | +185+1.5% | Added |
| First National Corp | 11,327 | $1.02M | 0.19% | +1,706+17.7% | Added |
| Curat Global, LLC | 12,187 | $1.02M | 0.96% | 00.0% | Unchanged |
| Carlton Hofferkamp & Jenks Wealth Management, LLC | 11,620 | $1.02M | 0.34% | −338−2.8% | Reduced |
| Agf Management Ltd | 12,184 | $1.02M | 0.00% | +1,106+10.0% | Added |
| Everhart Financial Group, Inc. | 12,186 | $1.02M | 0.10% | +321+2.7% | Added |
| LVM Capital Management Ltd | 12,192 | $1.02M | 0.10% | 00.0% | Unchanged |
| Breakwater Capital Group | 12,189 | $1.02M | 0.15% | −620−4.8% | Reduced |
| Truvestments Capital LLC | 12,203 | $1.02M | 0.19% | +8,592+237.9% | Added |
| Advyzon Investment Management, LLC | 12,206 | $1.02M | 0.18% | +3,073+33.6% | Added |
| David Loasby | 11,717 | $1.03M | 0.08% | −1,408−10.7% | Reduced |
| Bank Hapoalim BM | 12,254 | $1.03M | 0.13% | −10,100−45.2% | Reduced |
| Tounjian Advisory Partners, LLC | 12,262 | $1.03M | 0.34% | −10,436−46.0% | Reduced |
| Schulhoff & Co Inc | 12,263 | $1.03M | 0.44% | 00.0% | Unchanged |
| MidWestOne Financial Group, Inc. | 12,266 | $1.03M | 0.13% | −434−3.4% | Reduced |
| MONECO Advisors, LLC | 12,303 | $1.03M | 0.09% | +99+0.8% | Added |
| Elgethun Capital Management | 11,866 | $1.03M | 0.19% | −113−0.9% | Reduced |
| Portland Global Advisors LLC | 12,333 | $1.04M | 0.12% | −588−4.6% | Reduced |
| KC Investment Advisors, LLC | 11,842 | $1.04M | 0.28% | +2,631+28.6% | Added |
| Godshalk Welsh Capital Management, Inc. | 12,355 | $1.04M | 0.60% | −650−5.0% | Reduced |
| Archford Capital Strategies, LLC | 12,361 | $1.04M | 0.12% | −73−0.6% | Reduced |
| WNY Asset Management, LLC | 12,365 | $1.04M | 0.10% | +2,709+28.1% | Added |
| AXA S.A. | 12,386 | $1.04M | 0.52% | −1,293,946−99.1% | Reduced |
| Csenge Advisory Group | 12,436 | $1.04M | 0.05% | −4,220−25.3% | Reduced |
| Focus Financial Network, Inc. | 12,446 | $1.04M | 0.04% | −395−3.1% | Reduced |
| Claro Advisors LLC | 12,464 | $1.05M | 0.15% | −636−4.9% | Reduced |
| Severin Investments, LLC | 12,468 | $1.05M | 0.93% | +7,274+140.0% | Added |
| MB, Levis & Associates, LLC | 12,470 | $1.05M | 0.45% | −1,562−11.1% | Reduced |
| Barnes Pettey Financial Advisors, LLC | 12,472 | $1.05M | 0.57% | +4,519+56.8% | Added |
| Summit Wealth Partners, LLC | 12,489 | $1.05M | 0.19% | +10.0% | Added |
| Quadcap Wealth Management, LLC | 12,508 | $1.05M | 0.12% | −2,153−14.7% | Reduced |
| Mirabaud Asset Management Ltd | 13,370 | $1.05M | 0.51% | 00.0% | Unchanged |
| LexAurum Advisors, LLC | 12,522 | $1.05M | 0.15% | +1,001+8.7% | Added |
| Total Clarity Wealth Management, Inc. | 12,523 | $1.05M | 0.28% | −385−3.0% | Reduced |
| DGS Capital Management, LLC | 12,523 | $1.05M | 0.19% | −1,173−8.6% | Reduced |
| Alan B. Lancz & Associates, Inc. | 12,573 | $1.06M | 0.95% | −150−1.2% | Reduced |
| Alta Advisers Ltd | 12,584 | $1.06M | 0.32% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 12,604 | $1.06M | 0.04% | −3,305−20.8% | Reduced |
| Formidable Asset Management, LLC | 13,367 | $1.06M | 0.17% | −2,881−17.7% | Reduced |
| Resonant Capital Advisors, LLC | 12,503 | $1.06M | 0.06% | +1,041+9.1% | Added |
| Jackson, Grant Investment Advisers, Inc. | 12,658 | $1.06M | 0.35% | +592+4.9% | Added |
| Winnow Wealth LLC | 12,654 | $1.06M | 0.83% | +12,091+2,147.6% | Added |
| Pitcairn Co | 12,683 | $1.06M | 0.08% | −3,132−19.8% | Reduced |
| Bristlecone Advisors, LLC | 12,701 | $1.07M | 0.09% | −1,370−9.7% | Reduced |
| Affinity Investment Advisors, LLC | 12,725 | $1.07M | 0.72% | −3,543−21.8% | Reduced |
| Capital International Inc | 12,745 | $1.07M | 0.01% | −7,639−37.5% | Reduced |
| Hardman Johnston Global Advisors LLC | 12,750 | $1.07M | 0.05% | 00.0% | Unchanged |
| Jackson Thornton Asset Management, LLC | 12,407 | $1.07M | 0.11% | +8,730+237.4% | Added |
| True North Advisors, LLC | 12,787 | $1.07M | 0.17% | +702+5.8% | Added |
| Millstone Evans Group, LLC | 12,795 | $1.07M | 0.68% | −254−1.9% | Reduced |
| Southeast Asset Advisors Inc. | 12,799 | $1.07M | 0.12% | +3,878+43.5% | Added |
| Kiley Juergens Wealth Management, LLC | 12,807 | $1.07M | 0.24% | −1,778−12.2% | Reduced |
| Opinicus Capital, Inc. | 12,814 | $1.08M | 0.74% | −3,695−22.4% | Reduced |
| Canandaigua National Trust Co of Florida | 12,817 | $1.08M | 0.85% | −4,511−26.0% | Reduced |
| Colonial Trust Co | 12,817 | $1.08M | 0.14% | −260−2.0% | Reduced |
| Cape Ann Savings Bank | 12,829 | $1.08M | 0.57% | −63−0.5% | Reduced |
| Platform Technology Partners | 12,840 | $1.08M | 0.26% | −1,762−12.1% | Reduced |
| Coastwise Capital Group, LLC | 12,844 | $1.08M | 0.76% | −11−0.1% | Reduced |
| Transatlantique Private Wealth LLC | 12,853 | $1.08M | 0.35% | +22+0.2% | Added |
| Aviso Wealth Management | 12,903 | $1.08M | 0.47% | −7,723−37.4% | Reduced |
| Plancorp, LLC | 12,923 | $1.08M | 0.03% | −1,321−9.3% | Reduced |
| Delta Asset Management LLC | 12,928 | $1.09M | 0.09% | +25+0.2% | Added |
| Wealth Architects, LLC | 12,932 | $1.09M | 0.10% | −238−1.8% | Reduced |
| Headinvest, LLC | 12,936 | $1.09M | 0.22% | −672−4.9% | Reduced |
| Bill Few Associates, Inc. | 12,938 | $1.09M | 0.28% | +106+0.8% | Added |
| Fjell Capital, LLC | 12,957 | $1.09M | 0.96% | +375+3.0% | Added |
| Alpine Bank Wealth Management | 12,974 | $1.09M | 0.15% | 00.0% | Unchanged |
| Pingora Partners LLC | 12,979 | $1.09M | 0.72% | 00.0% | Unchanged |
| Canopy Partners, LLC | 12,981 | $1.09M | 0.36% | +487+3.9% | Added |
| Farmers & Merchants Trust Co of Long Beach | 13,000 | $1.09M | 0.23% | −1,202−8.5% | Reduced |
| JT Stratford LLC | 13,014 | $1.09M | 0.15% | −4,601−26.1% | Reduced |
| Hilltop Partners LLC | 13,046 | $1.09M | 0.33% | −82−0.6% | Reduced |
| Isthmus Partners, LLC | 13,053 | $1.10M | 0.24% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 13,128 | $1.10M | 0.01% | −5,409−29.2% | Reduced |
| Redwood Wealth Management Group, LLC | 13,129 | $1.10M | 0.47% | −1,348−9.3% | Reduced |
| Chilton Investment Co LLC | 13,129 | $1.10M | 0.02% | +5,488+71.8% | Added |
| Capital Square, LLC | 13,138 | $1.10M | 0.56% | −461−3.4% | Reduced |
| Stableford Capital II LLC | 13,153 | $1.10M | 0.40% | 00.0% | Unchanged |
| Intrinsic Value Partners, LLC | 13,185 | $1.11M | 0.90% | −2,060−13.5% | Reduced |
| Dover Advisors, LLC | 13,115 | $1.11M | 0.44% | −162−1.2% | Reduced |
| Abacus Planning Group, Inc. | 13,255 | $1.11M | 0.15% | −582−4.2% | Reduced |
| Lee Financial Co | 13,222 | $1.11M | 0.14% | +603+4.8% | Added |
| Childress Capital Advisors, LLC | 13,290 | $1.12M | 0.20% | +1,062+8.7% | Added |
| Weaver C. Barksdale & Associates, Inc. | 13,344 | $1.12M | 1.08% | −1,281−8.8% | Reduced |
| KLCM Advisors, Inc. | 13,385 | $1.12M | 0.11% | +548+4.3% | Added |
| Compton Wealth Advisory Group, LLC | 13,419 | $1.13M | 0.26% | +501+3.9% | Added |
| McDonald Partners LLC | 13,431 | $1.13M | 0.34% | −1,286−8.7% | Reduced |
| National Philanthropic Trust | 13,432 | $1.13M | 0.01% | +924+7.4% | Added |
| Van Hulzen Asset Management, LLC | 13,463 | $1.13M | 0.08% | −2,239−14.3% | Reduced |
| Triangle Securities Wealth Management | 13,476 | $1.13M | 0.26% | +2,660+24.6% | Added |
| MTM Investment Management, LLC | 13,481 | $1.13M | 0.36% | 00.0% | Unchanged |