Quest Diagnostics Inc
DGX- Exchange
- NYSE
- Industry
- Services-Medical Laboratories
- SEC CIK
- 0001022079
In the last 90 days, Quest Diagnostics Inc insiders filed 0 open-market purchases and 3 sales; 1,112 institutions reported holding it in 13F filings for Q2 2026, worth $22.2B in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Quest Diagnostics 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
- 1,050
- +59 vs. Q3 2025
- Shares held
- 106.1M
- +1.44M (+1.4%) vs. Q3 2025
- Total value
- $18.4B
- −$1.53B (−7.7%) vs. Q3 2025
- New holders
- 149
- 350 more added
- Sold out
- 90
- 345 more reduced
15 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 DGX 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 | 1,112 | $22.2B |
| Q1 2026 | 1,069 | $20.1B |
| Q4 2025 | 1,050 | $18.4B |
| Q3 2025 | 1,006 | $20.0B |
| Q2 2025 | 991 | $19.3B |
| Q1 2025 | 969 | $17.5B |
| Q4 2024 | 896 | $15.0B |
| Q3 2024 | 849 | $15.2B |
| Q2 2024 | 839 | $13.3B |
| Q1 2024 | 818 | $13.2B |
| Q4 2023 | 829 | $13.5B |
| Q3 2023 | 797 | $12.0B |
| Q2 2023 | 820 | $14.0B |
| Q1 2023 | 837 | $14.2B |
| Q4 2022 | 881 | $15.5B |
| Q3 2022 | 809 | $12.6B |
| Q2 2022 | 853 | $13.8B |
| Q1 2022 | 852 | $14.4B |
| Q4 2021 | 906 | $18.0B |
| Q3 2021 | 840 | $15.9B |
| Q2 2021 | 816 | $15.0B |
| Q1 2021 | 818 | $14.8B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| SGL Investment Advisors, Inc. | 28,499 | $5.48M | 2.19% | +450+1.6% | Added |
| FIL Ltd | 30,971 | $5.37M | 0.00% | +11,630+60.1% | Added |
| Arizona State Retirement System | 30,770 | $5.34M | 0.03% | −2,139−6.5% | Reduced |
| Susquehanna International Group, LLP | 30,628 | $5.31M | 0.01% | +13,696+80.9% | Added |
| Y-Intercept (Hong Kong) Ltd | 29,905 | $5.19M | 0.12% | +29,905 | New |
| Argent Trust Co | 29,859 | $5.18M | 0.18% | +355+1.2% | Added |
| Toth Financial Advisory Corp | 29,552 | $5.13M | 0.56% | +2,731+10.2% | Added |
| Czech National Bank | 29,333 | $5.09M | 0.03% | +932+3.3% | Added |
| Rockefeller Capital Management L.P. | 29,322 | $5.09M | 0.01% | −75,894−72.1% | Reduced |
| State of Michigan Retirement System | 29,121 | $5.05M | 0.02% | −1,100−3.6% | Reduced |
| Ivy Lane Capital Management, LLC | 29,000 | $5.03M | 6.36% | 00.0% | Unchanged |
| Twinbeech Capital LP | 28,913 | $5.02M | 0.36% | +28,913 | New |
| Cetera Investment Advisers | 28,912 | $5.02M | 0.01% | −391−1.3% | Reduced |
| Boston Trust Walden Corp | 28,849 | $5.01M | 0.04% | −745−2.5% | Reduced |
| TCW Group Inc | 28,708 | $4.98M | 0.04% | +2,131+8.0% | Added |
| ProShare Advisors LLC | 28,430 | $4.93M | 0.01% | +1,473+5.5% | Added |
| Illinois Municipal Retirement Fund | 28,101 | $4.88M | 0.06% | +4,710+20.1% | Added |
| Occidental Asset Management, LLC | 26,921 | $4.67M | 0.56% | +881+3.4% | Added |
| Sequoia Financial Advisors, LLC | 26,702 | $4.63M | 0.03% | +3,359+14.4% | Added |
| Clean Yield Group | 26,681 | $4.63M | 1.29% | +24+0.1% | Added |
| Trillium Asset Management, LLC | 25,799 | $4.63M | 0.14% | −5,403−17.3% | Reduced |
| MetLife Investment Management | 26,669 | $4.63M | 0.02% | −1,067−3.8% | Reduced |
| Comerica Bank | 26,427 | $4.59M | 0.02% | −686−2.5% | Reduced |
| Intech Investment Management LLC | 26,357 | $4.57M | 0.04% | −17,233−39.5% | Reduced |
| Waterloo Capital, L.P. | 26,330 | $4.57M | 0.33% | +551+2.1% | Added |
| Van Eck Associates Corp | 25,977 | $4.51M | 0.00% | +174+0.7% | Added |
| Auxier Asset Management | 25,911 | $4.50M | 0.63% | −387−1.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 25,876 | $4.49M | 0.02% | −977−3.6% | Reduced |
| Palumbo Wealth Management LLC | 25,858 | $4.49M | 1.11% | +115+0.4% | Added |
| State of Tennessee, Treasury Department | 23,856 | $4.46M | 0.01% | −1,108−4.4% | Reduced |
| FineMark National Bank & Trust | 25,419 | $4.41M | 0.14% | +166+0.7% | Added |
| Captrust Financial Advisors | 25,317 | $4.39M | 0.01% | +8,136+47.4% | Added |
| Empowered Funds, LLC | 24,995 | $4.34M | 0.07% | +16,639+199.1% | Added |
| Assenagon Asset Management S.A. | 24,949 | $4.33M | 0.01% | +19,361+346.5% | Added |
| Sanctuary Advisors, LLC | 24,676 | $4.28M | 0.02% | +331+1.4% | Added |
| Rice Partnership, LLC | 24,524 | $4.26M | 0.58% | +2,684+12.3% | Added |
| Dean Investment Associates, LLC | 24,269 | $4.21M | 0.60% | +622+2.6% | Added |
| Atom Investors LP | 24,043 | $4.17M | 0.33% | +24,043 | New |
| Maverick Capital LtdSuperinvestorMaverick Capital | 23,895 | $4.15M | 0.04% | +5,717+31.5% | Added |
| Cambiar Investors LLC | 23,730 | $4.12M | 0.18% | −3,668−13.4% | Reduced |
| Retirement Systems of Alabama | 23,665 | $4.11M | 0.01% | −190−0.8% | Reduced |
| IFM Investors Pty Ltd | 23,581 | $4.09M | 0.03% | 00.0% | Unchanged |
| Wealthfront Advisers LLC | 23,300 | $4.04M | 0.01% | −630−2.6% | Reduced |
| Canada Post Corp Registered Pension Plan | 23,015 | $3.99M | 0.15% | −5,785−20.1% | Reduced |
| Verition Fund Management LLC | 22,766 | $3.95M | 0.02% | −42,677−65.2% | Reduced |
| DnB Asset Management AS | 22,529 | $3.91M | 0.01% | +1,696+8.1% | Added |
| US Bancorp | 22,464 | $3.90M | 0.00% | −302−1.3% | Reduced |
| Umb Bank N A | 22,205 | $3.85M | 0.05% | −1,028−4.4% | Reduced |
| Quest Partners LLC | 22,173 | $3.85M | 0.22% | +15,704+242.8% | Added |
| Old National Bancorp | 22,168 | $3.85M | 0.06% | −3,181−12.5% | Reduced |
| Janney Montgomery Scott LLC | 21,923 | $3.80M | 0.01% | +760+3.6% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 21,866 | $3.79M | 0.03% | −831−3.7% | Reduced |
| Quantbot Technologies LP | 21,544 | $3.74M | 0.12% | +21,544 | New |
| Yousif Capital Management, LLC | 19,492 | $3.68M | 0.04% | −899−4.4% | Reduced |
| Forsta Ap-Fonden | 21,000 | $3.64M | 0.02% | −4,300−17.0% | Reduced |
| Appleton Partners Inc | 20,982 | $3.64M | 0.24% | +733+3.6% | Added |
| Pine Valley Investments Ltd Liability Co | 20,943 | $3.63M | 0.18% | −1,226−5.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 20,733 | $3.60M | 0.01% | +3,449+20.0% | Added |
| Massmutual Trust Co FSB | 20,660 | $3.59M | 0.09% | −235−1.1% | Reduced |
| Amalgamated Bank | 20,626 | $3.58M | 0.03% | −925−4.3% | Reduced |
| Bokf, NA | 20,403 | $3.54M | 0.05% | −6,940−25.4% | Reduced |
| Ethic Inc. | 20,391 | $3.54M | 0.05% | +5,967+41.4% | Added |
| Daymark Wealth Partners, LLC | 20,024 | $3.47M | 0.11% | −19−0.1% | Reduced |
| Generali Asset Management SPA SGR | 19,922 | $3.46M | 0.07% | +8,924+81.1% | Added |
| British Columbia Investment Management Corp | 19,780 | $3.43M | 0.02% | +3,735+23.3% | Added |
| Advisor Group Holdings, Inc. | 19,609 | $3.40M | 0.00% | −4,789−19.6% | Reduced |
| Xponance, Inc. | 19,574 | $3.40M | 0.03% | +776+4.1% | Added |
| Fuller & Thaler Asset Management, Inc. | 19,562 | $3.39M | 0.01% | +5,362+37.8% | Added |
| Foster & Motley Inc | 19,547 | $3.39M | 0.18% | −5,015−20.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 19,530 | $3.39M | 0.01% | −25−0.1% | Reduced |
| Alpine Woods Capital Investors, LLC | 19,402 | $3.37M | 0.80% | +1,881+10.7% | Added |
| QRG Capital Management, Inc. | 19,376 | $3.36M | 0.04% | +419+2.2% | Added |
| Northwestern Mutual Wealth Management Co | 19,278 | $3.35M | 0.00% | +3,581+22.8% | Added |
| CWM, LLC | 18,950 | $3.29M | 0.01% | −7,532−28.4% | Reduced |
| Creative Planning | 18,945 | $3.29M | 0.00% | −300−1.6% | Reduced |
| Manning & Napier Advisors LLC | 18,463 | $3.24M | 0.04% | −1,793−8.9% | Reduced |
| CIBC World Markets Corp | 18,667 | $3.24M | 0.02% | +18,667 | New |
| Sit Investment Associates Inc | 18,615 | $3.23M | 0.06% | −29,183−61.1% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 18,392 | $3.19M | 0.04% | +18,392 | New |
| Utah Retirement Systems | 18,327 | $3.18M | 0.03% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 18,297 | $3.18M | 0.01% | +247+1.4% | Added |
| Aquatic Capital Management LLC | 18,178 | $3.15M | 0.09% | −24,101−57.0% | Reduced |
| Teewinot Capital Advisers, L.L.C. | 18,119 | $3.14M | 0.23% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 18,105 | $3.14M | 0.01% | +564+3.2% | Added |
| Wealth Enhancement Advisory Services, LLC | 17,239 | $3.12M | 0.00% | +2,152+14.3% | Added |
| Thrivent Financial for Lutherans | 17,938 | $3.11M | 0.01% | +7,851+77.8% | Added |
| Kestra Advisory Services, LLC | 17,886 | $3.10M | 0.01% | −238−1.3% | Reduced |
| Delta Capital Management LLC | 17,710 | $3.07M | 1.73% | −2,600−12.8% | Reduced |
| Wasatch Advisors Inc | 17,702 | $3.07M | 0.02% | −54−0.3% | Reduced |
| Charter Trust Co | 17,508 | $3.04M | 0.18% | +926+5.6% | Added |
| Oak Associates, Ltd | 17,442 | $3.03M | 0.18% | 00.0% | Unchanged |
| Boston Private Wealth LLC | 17,348 | $3.01M | 0.18% | −5,300−23.4% | Reduced |
| ING Groep NV | 17,109 | $2.97M | 0.02% | +461+2.8% | Added |
| Police & Firemen's Retirement System of New Jersey | 17,046 | $2.96M | 0.02% | −828−4.6% | Reduced |
| Coldstream Capital Management Inc | 16,967 | $2.94M | 0.04% | −66−0.4% | Reduced |
| Vestmark Advisory Solutions, Inc. | 16,876 | $2.93M | 0.04% | +15,741+1,386.9% | Added |
| Dynamic Technology Lab Private Ltd | 16,840 | $2.92M | 0.66% | +16,840 | New |
| JustInvest LLC | 16,561 | $2.87M | 0.03% | −136−0.8% | Reduced |
| Baird Financial Group, Inc. | 16,390 | $2.84M | 0.00% | −369−2.2% | Reduced |
| Allspring Global Investments Holdings, LLC | 16,312 | $2.83M | 0.00% | +537+3.4% | Added |