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 |
|---|---|---|---|---|---|
| Yousif Capital Management, LLC | 18,498 | $3.63M | 0.04% | −994−5.1% | Reduced |
| Susquehanna International Group, LLP | 18,519 | $3.63M | 0.00% | −12,109−39.5% | Reduced |
| Cambiar Investors LLC | 18,675 | $3.66M | 0.17% | −5,055−21.3% | Reduced |
| Daiwa Securities Group Inc. | 18,923 | $3.71M | 0.01% | +818+4.5% | Added |
| USS Investment Management Ltd | 19,068 | $3.74M | 0.02% | +2,971+18.5% | Added |
| ProShare Advisors LLC | 19,269 | $3.78M | 0.01% | −9,161−32.2% | Reduced |
| Jones Financial Companies LLLP | 19,579 | $3.83M | 0.00% | +14,575+291.3% | Added |
| Intech Investment Management LLC | 19,894 | $3.90M | 0.04% | −6,463−24.5% | Reduced |
| Pine Valley Investments Ltd Liability Co | 19,955 | $3.91M | 0.19% | −988−4.7% | Reduced |
| Daymark Wealth Partners, LLC | 20,024 | $3.92M | 0.12% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 20,403 | $4.00M | 0.01% | +873+4.5% | Added |
| Massmutual Trust Co FSB | 20,423 | $4.00M | 0.11% | −237−1.1% | Reduced |
| US Bancorp | 20,905 | $4.10M | 0.00% | −1,559−6.9% | Reduced |
| Riverwater Partners LLC | 20,973 | $4.11M | 1.37% | +5,232+33.2% | Added |
| Amalgamated Bank | 21,093 | $4.13M | 0.03% | +467+2.3% | Added |
| Appleton Partners Inc | 21,125 | $4.14M | 0.29% | +143+0.7% | Added |
| Xponance, Inc. | 21,411 | $4.20M | 0.03% | +1,837+9.4% | Added |
| Janney Montgomery Scott LLC | 21,482 | $4.21M | 0.01% | −441−2.0% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 21,518 | $4.22M | 0.03% | −348−1.6% | Reduced |
| Creative Planning | 21,638 | $4.24M | 0.00% | +2,693+14.2% | Added |
| Umb Bank N A | 21,774 | $4.27M | 0.06% | −431−1.9% | Reduced |
| Northwestern Mutual Wealth Management Co | 21,974 | $4.31M | 0.00% | +2,696+14.0% | Added |
| Generali Asset Management SPA SGR | 22,078 | $4.33M | 0.09% | +2,156+10.8% | Added |
| CIBC World Markets Inc. | 22,322 | $4.37M | 0.01% | +8,305+59.2% | Added |
| QRG Capital Management, Inc. | 22,351 | $4.38M | 0.05% | +2,975+15.4% | Added |
| Vestmark Advisory Solutions, Inc. | 22,364 | $4.38M | 0.05% | +5,488+32.5% | Added |
| Canada Post Corp Registered Pension Plan | 23,015 | $4.51M | 0.18% | 00.0% | Unchanged |
| Retirement Systems of Alabama | 23,360 | $4.58M | 0.02% | −305−1.3% | Reduced |
| DnB Asset Management AS | 23,498 | $4.61M | 0.02% | +969+4.3% | Added |
| Mirae Asset Global Investments Co., Ltd. | 23,635 | $4.63M | 0.01% | +2,902+14.0% | Added |
| IFM Investors Pty Ltd | 23,777 | $4.66M | 0.04% | +196+0.8% | Added |
| State of Tennessee, Treasury Department | 23,856 | $4.68M | 0.02% | 00.0% | Unchanged |
| Old National Bancorp | 23,951 | $4.69M | 0.08% | +1,783+8.0% | Added |
| Palumbo Wealth Management LLC | 24,302 | $4.76M | 1.16% | −1,556−6.0% | Reduced |
| Nuance Investments, LLC | 24,540 | $4.81M | 0.67% | −31,016−55.8% | Reduced |
| Dean Investment Associates, LLC | 24,646 | $4.83M | 0.68% | +377+1.6% | Added |
| Ethic Inc. | 24,660 | $4.83M | 0.08% | +4,269+20.9% | Added |
| Rice Partnership, LLC | 24,758 | $4.85M | 0.66% | +234+1.0% | Added |
| Waterloo Capital, L.P. | 24,819 | $4.86M | 0.34% | −1,511−5.7% | Reduced |
| Wealthfront Advisers LLC | 24,884 | $4.88M | 0.01% | +1,584+6.8% | Added |
| Fuller & Thaler Asset Management, Inc. | 24,922 | $4.88M | 0.02% | +5,360+27.4% | Added |
| Auxier Asset Management | 25,451 | $4.99M | 0.72% | −460−1.8% | Reduced |
| Trillium Asset Management, LLC | 23,631 | $4.99M | 0.17% | −2,168−8.4% | Reduced |
| Sanctuary Advisors, LLC | 25,500 | $5.00M | 0.03% | +824+3.3% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 25,624 | $5.02M | 0.03% | −252−1.0% | Reduced |
| MetLife Investment Management | 25,725 | $5.04M | 0.03% | −944−3.5% | Reduced |
| Clean Yield Group | 26,322 | $5.16M | 1.45% | −359−1.3% | Reduced |
| Capital Fund Management S.A. | 26,563 | $5.21M | 0.05% | +26,563 | New |
| Worldquant Millennium Advisors LLC | 26,745 | $5.24M | 0.02% | +26,745 | New |
| Mariner, LLC | 26,842 | $5.26M | 0.01% | −18,800−41.2% | Reduced |
| Thompson Siegel & Walmsley LLC | 26,855 | $5.26M | 0.09% | −5,800−17.8% | Reduced |
| Sequoia Financial Advisors, LLC | 27,030 | $5.30M | 0.03% | +328+1.2% | Added |
| Rockefeller Capital Management L.P. | 27,266 | $5.34M | 0.01% | −2,056−7.0% | Reduced |
| SGL Investment Advisors, Inc. | 28,258 | $5.36M | 2.01% | −241−0.8% | Reduced |
| Occidental Asset Management, LLC | 27,692 | $5.43M | 0.64% | +771+2.9% | Added |
| Natixis | 28,191 | $5.52M | 0.02% | +28,191 | New |
| Teewinot Capital Advisers, L.L.C. | 28,625 | $5.61M | 0.45% | +10,506+58.0% | Added |
| State of Michigan Retirement System | 28,721 | $5.63M | 0.03% | −400−1.4% | Reduced |
| Ivy Lane Capital Management, LLC | 29,000 | $5.68M | 8.59% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 29,327 | $5.75M | 0.01% | −51,452−63.7% | Reduced |
| Toth Financial Advisory Corp | 29,761 | $5.83M | 0.64% | +209+0.7% | Added |
| Czech National Bank | 29,958 | $5.87M | 0.04% | +625+2.1% | Added |
| Te Ahumairangi Investment Management Ltd | 30,222 | $5.92M | 0.99% | −4,314−12.5% | Reduced |
| Arizona State Retirement System | 30,236 | $5.93M | 0.03% | −534−1.7% | Reduced |
| Atwater Malick LLC | 30,316 | $5.94M | 1.61% | −5,017−14.2% | Reduced |
| Boston Trust Walden Corp | 30,390 | $5.96M | 0.05% | +1,541+5.3% | Added |
| Argent Trust Co | 30,489 | $5.98M | 0.20% | +630+2.1% | Added |
| TCW Group Inc | 30,862 | $6.05M | 0.05% | +2,154+7.5% | Added |
| Truist Financial Corp | 31,374 | $6.15M | 0.01% | −3,428−9.9% | Reduced |
| Illinois Municipal Retirement Fund | 31,496 | $6.17M | 0.08% | +3,395+12.1% | Added |
| Pathstone Holdings, LLC | 31,677 | $6.21M | 0.02% | −2,454−7.2% | Reduced |
| American Assets Investment Management, LLC | 32,000 | $6.27M | 0.43% | 00.0% | Unchanged |
| Level Four Advisory Services, LLC | 32,688 | $6.41M | 0.21% | −2,174−6.2% | Reduced |
| Toronto Dominion Bank | 32,946 | $6.46M | 0.01% | −16,753−33.7% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 32,993 | $6.47M | 0.10% | −3,428−9.4% | Reduced |
| Jefferies Financial Group Inc. | 33,473 | $6.56M | 0.08% | −7,646−18.6% | Reduced |
| Railway Pension Investments Ltd | 34,500 | $6.76M | 0.10% | +34,500 | New |
| Fifth Third Bancorp | 35,096 | $6.88M | 0.01% | +26,233+296.0% | Added |
| Handelsbanken Fonder AB | 35,361 | $6.93M | 0.02% | −91−0.3% | Reduced |
| Olstein Capital Management, L.P. | 35,800 | $7.02M | 1.53% | −4,200−10.5% | Reduced |
| State of New Jersey Common Pension Fund D | 36,370 | $7.13M | 0.03% | 00.0% | Unchanged |
| Allianz Asset Management GmbH | 36,990 | $7.25M | 0.01% | −27,716−42.8% | Reduced |
| Capital Wealth Planning, LLC | 36,994 | $7.25M | 0.04% | +384+1.0% | Added |
| Toroso Investments, LLC | 37,064 | $7.26M | 0.02% | +30,172+437.8% | Added |
| Cetera Investment Advisers | 37,274 | $7.30M | 0.01% | +8,362+28.9% | Added |
| TD Waterhouse Canada Inc. | 37,352 | $7.37M | 0.02% | −3,843−9.3% | Reduced |
| The PNC Financial Services Group, Inc. | 38,198 | $7.49M | 0.00% | +1,457+4.0% | Added |
| GHP Investment Advisors, Inc. | 38,201 | $7.49M | 0.31% | −285−0.7% | Reduced |
| CI Private Wealth, LLC | 39,325 | $7.56M | 0.01% | +2,712+7.4% | Added |
| Oppenheimer & Co Inc | 38,731 | $7.59M | 0.09% | +897+2.4% | Added |
| KLP Kapitalforvaltning AS | 39,403 | $7.72M | 0.03% | 00.0% | Unchanged |
| Cerity Partners LLC | 39,590 | $7.76M | 0.01% | −2,510−6.0% | Reduced |
| Commerce Bank | 39,748 | $7.79M | 0.04% | +25,820+185.4% | Added |
| CIBC Bancorp USA Inc. | 39,761 | $7.79M | 0.01% | +39,761 | New |
| Neuberger Berman Group LLC | 40,652 | $7.97M | 0.01% | −3,169−7.2% | Reduced |
| Artia Global Partners LP | 40,817 | $8.00M | 1.80% | 00.0% | Unchanged |
| Mn Services Vermogensbeheer B.V. | 42,366 | $8.30M | 0.05% | 00.0% | Unchanged |
| Commonwealth Equity Services, LLC | 42,879 | $8.40M | 0.01% | −3,042−6.6% | Reduced |
| Resona Asset Management Co.,Ltd. | 43,353 | $8.50M | 0.04% | −144−0.3% | Reduced |
| Calamos Advisors LLC | 43,506 | $8.53M | 0.03% | +43,506 | New |