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, Q1 2026
Institutional positions in Quest Diagnostics Inc as of Mar 31, 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
- 1,069
- +36 vs. Q4 2025
- Shares held
- 102.6M
- +12.5M (+13.8%) vs. Q4 2025
- Total value
- $20.1B
- +$4.48B (+28.7%) vs. Q4 2025
- New holders
- 123
- 352 more added
- Sold out
- 87
- 382 more reduced
17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Truist Financial Corp | 31,374 | $6.15M | 0.01% | −3,428−9.9% | Reduced |
| TCW Group Inc | 30,862 | $6.05M | 0.05% | +2,154+7.5% | Added |
| Argent Trust Co | 30,489 | $5.98M | 0.20% | +630+2.1% | Added |
| Boston Trust Walden Corp | 30,390 | $5.96M | 0.05% | +1,541+5.3% | Added |
| Atwater Malick LLC | 30,316 | $5.94M | 1.61% | −5,017−14.2% | Reduced |
| Arizona State Retirement System | 30,236 | $5.93M | 0.03% | −534−1.7% | Reduced |
| Te Ahumairangi Investment Management Ltd | 30,222 | $5.92M | 0.99% | −4,314−12.5% | Reduced |
| Czech National Bank | 29,958 | $5.87M | 0.04% | +625+2.1% | Added |
| Toth Financial Advisory Corp | 29,761 | $5.83M | 0.64% | +209+0.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 29,327 | $5.75M | 0.01% | −51,452−63.7% | Reduced |
| Ivy Lane Capital Management, LLC | 29,000 | $5.68M | 8.59% | 00.0% | Unchanged |
| State of Michigan Retirement System | 28,721 | $5.63M | 0.03% | −400−1.4% | Reduced |
| Teewinot Capital Advisers, L.L.C. | 28,625 | $5.61M | 0.45% | +10,506+58.0% | Added |
| Natixis | 28,191 | $5.52M | 0.02% | +28,191 | New |
| Occidental Asset Management, LLC | 27,692 | $5.43M | 0.64% | +771+2.9% | Added |
| SGL Investment Advisors, Inc. | 28,258 | $5.36M | 2.01% | −241−0.8% | Reduced |
| Rockefeller Capital Management L.P. | 27,266 | $5.34M | 0.01% | −2,056−7.0% | Reduced |
| Sequoia Financial Advisors, LLC | 27,030 | $5.30M | 0.03% | +328+1.2% | Added |
| Thompson Siegel & Walmsley LLC | 26,855 | $5.26M | 0.09% | −5,800−17.8% | Reduced |
| Mariner, LLC | 26,842 | $5.26M | 0.01% | −18,800−41.2% | Reduced |
| Worldquant Millennium Advisors LLC | 26,745 | $5.24M | 0.02% | +26,745 | New |
| Capital Fund Management S.A. | 26,563 | $5.21M | 0.05% | +26,563 | New |
| Clean Yield Group | 26,322 | $5.16M | 1.45% | −359−1.3% | Reduced |
| MetLife Investment Management | 25,725 | $5.04M | 0.03% | −944−3.5% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 25,624 | $5.02M | 0.03% | −252−1.0% | Reduced |
| Sanctuary Advisors, LLC | 25,500 | $5.00M | 0.03% | +824+3.3% | Added |
| Trillium Asset Management, LLC | 23,631 | $4.99M | 0.17% | −2,168−8.4% | Reduced |
| Auxier Asset Management | 25,451 | $4.99M | 0.72% | −460−1.8% | Reduced |
| Fuller & Thaler Asset Management, Inc. | 24,922 | $4.88M | 0.02% | +5,360+27.4% | Added |
| Wealthfront Advisers LLC | 24,884 | $4.88M | 0.01% | +1,584+6.8% | Added |
| Waterloo Capital, L.P. | 24,819 | $4.86M | 0.34% | −1,511−5.7% | Reduced |
| Rice Partnership, LLC | 24,758 | $4.85M | 0.66% | +234+1.0% | Added |
| Ethic Inc. | 24,660 | $4.83M | 0.08% | +4,269+20.9% | Added |
| Dean Investment Associates, LLC | 24,646 | $4.83M | 0.68% | +377+1.6% | Added |
| Nuance Investments, LLC | 24,540 | $4.81M | 0.67% | −31,016−55.8% | Reduced |
| Palumbo Wealth Management LLC | 24,302 | $4.76M | 1.16% | −1,556−6.0% | Reduced |
| Old National Bancorp | 23,951 | $4.69M | 0.08% | +1,783+8.0% | Added |
| State of Tennessee, Treasury Department | 23,856 | $4.68M | 0.02% | 00.0% | Unchanged |
| IFM Investors Pty Ltd | 23,777 | $4.66M | 0.04% | +196+0.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 23,635 | $4.63M | 0.01% | +2,902+14.0% | Added |
| DnB Asset Management AS | 23,498 | $4.61M | 0.02% | +969+4.3% | Added |
| Retirement Systems of Alabama | 23,360 | $4.58M | 0.02% | −305−1.3% | Reduced |
| Canada Post Corp Registered Pension Plan | 23,015 | $4.51M | 0.18% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 22,364 | $4.38M | 0.05% | +5,488+32.5% | Added |
| QRG Capital Management, Inc. | 22,351 | $4.38M | 0.05% | +2,975+15.4% | Added |
| CIBC World Markets Inc. | 22,322 | $4.37M | 0.01% | +8,305+59.2% | Added |
| Generali Asset Management SPA SGR | 22,078 | $4.33M | 0.09% | +2,156+10.8% | Added |
| Northwestern Mutual Wealth Management Co | 21,974 | $4.31M | 0.00% | +2,696+14.0% | Added |
| Umb Bank N A | 21,774 | $4.27M | 0.06% | −431−1.9% | Reduced |
| Creative Planning | 21,638 | $4.24M | 0.00% | +2,693+14.2% | Added |
| Banco Bilbao Vizcaya Argentaria, S.A. | 21,518 | $4.22M | 0.03% | −348−1.6% | Reduced |
| Janney Montgomery Scott LLC | 21,482 | $4.21M | 0.01% | −441−2.0% | Reduced |
| Xponance, Inc. | 21,411 | $4.20M | 0.03% | +1,837+9.4% | Added |
| Appleton Partners Inc | 21,125 | $4.14M | 0.29% | +143+0.7% | Added |
| Amalgamated Bank | 21,093 | $4.13M | 0.03% | +467+2.3% | Added |
| Riverwater Partners LLC | 20,973 | $4.11M | 1.37% | +5,232+33.2% | Added |
| US Bancorp | 20,905 | $4.10M | 0.00% | −1,559−6.9% | Reduced |
| Massmutual Trust Co FSB | 20,423 | $4.00M | 0.11% | −237−1.1% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 20,403 | $4.00M | 0.01% | +873+4.5% | Added |
| Daymark Wealth Partners, LLC | 20,024 | $3.92M | 0.12% | 00.0% | Unchanged |
| Pine Valley Investments Ltd Liability Co | 19,955 | $3.91M | 0.19% | −988−4.7% | Reduced |
| Intech Investment Management LLC | 19,894 | $3.90M | 0.04% | −6,463−24.5% | Reduced |
| Jones Financial Companies LLLP | 19,579 | $3.83M | 0.00% | +14,575+291.3% | Added |
| ProShare Advisors LLC | 19,269 | $3.78M | 0.01% | −9,161−32.2% | Reduced |
| USS Investment Management Ltd | 19,068 | $3.74M | 0.02% | +2,971+18.5% | Added |
| Daiwa Securities Group Inc. | 18,923 | $3.71M | 0.01% | +818+4.5% | Added |
| Cambiar Investors LLC | 18,675 | $3.66M | 0.17% | −5,055−21.3% | Reduced |
| Susquehanna International Group, LLP | 18,519 | $3.63M | 0.00% | −12,109−39.5% | Reduced |
| Yousif Capital Management, LLC | 18,498 | $3.63M | 0.04% | −994−5.1% | Reduced |
| Charter Trust Co | 18,458 | $3.62M | 0.21% | +950+5.4% | Added |
| Tudor Investment Corp Et Al | 18,225 | $3.57M | 0.02% | +15,157+494.0% | Added |
| Utah Retirement Systems | 18,095 | $3.55M | 0.04% | −232−1.3% | Reduced |
| Soviero Asset Management, LP | 18,000 | $3.53M | 1.98% | +18,000 | New |
| Foster & Motley Inc | 17,916 | $3.51M | 0.18% | −1,631−8.3% | Reduced |
| Kestra Advisory Services, LLC | 17,886 | $3.51M | 0.01% | 00.0% | Unchanged |
| Delta Capital Management LLC | 17,810 | $3.49M | 1.92% | +100+0.6% | Added |
| Wasatch Advisors Inc | 17,702 | $3.47M | 0.02% | 00.0% | Unchanged |
| Agf Management Ltd | 17,667 | $3.46M | 0.02% | +1,517+9.4% | Added |
| Bank of Nova Scotia | 17,628 | $3.45M | 0.01% | −48,834−73.5% | Reduced |
| Public Sector Pension Investment Board | 17,623 | $3.45M | 0.01% | +3,125+21.6% | Added |
| Ostrum Asset Management | 17,402 | $3.41M | 0.19% | −14,769−45.9% | Reduced |
| Manning & Napier Advisors LLC | 17,296 | $3.41M | 0.05% | −1,167−6.3% | Reduced |
| Ensign Peak Advisors, Inc | 17,397 | $3.41M | 0.01% | +1,189+7.3% | Added |
| JustInvest LLC | 17,206 | $3.37M | 0.03% | +645+3.9% | Added |
| Bahl & Gaynor Inc | 17,141 | $3.36M | 0.02% | −170,147−90.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 17,129 | $3.36M | 0.03% | +83+0.5% | Added |
| Allspring Global Investments Holdings, LLC | 16,645 | $3.29M | 0.01% | +333+2.0% | Added |
| Advisor Group Holdings, Inc. | 16,666 | $3.27M | 0.00% | −2,943−15.0% | Reduced |
| Oak Associates, Ltd | 16,592 | $3.25M | 0.22% | −850−4.9% | Reduced |
| Nisa Investment Advisors, LLC | 16,547 | $3.24M | 0.01% | −1,750−9.6% | Reduced |
| Rakuten Investment Management, Inc. | 16,387 | $3.23M | 0.01% | +1,729+11.8% | Added |
| New York Life Investment Management LLC | 16,438 | $3.22M | 0.03% | +260+1.6% | Added |
| Baird Financial Group, Inc. | 16,328 | $3.20M | 0.00% | −62−0.4% | Reduced |
| Johnson Investment Counsel Inc | 16,220 | $3.18M | 0.03% | +93+0.6% | Added |
| Thrivent Financial for Lutherans | 16,150 | $3.17M | 0.01% | −1,788−10.0% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 16,050 | $3.15M | 0.03% | −59−0.4% | Reduced |
| Colonial Trust Advisors | 15,509 | $3.04M | 0.24% | −217−1.4% | Reduced |
| Northwest & Ethical Investments L.P. | 15,361 | $3.01M | 0.07% | +8,812+134.6% | Added |
| ING Groep NV | 15,356 | $3.01M | 0.02% | −1,753−10.2% | Reduced |
| Summit Trail Advisors, LLC | 15,351 | $3.01M | 0.04% | +3,714+31.9% | Added |