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 |
|---|---|---|---|---|---|
| Treasurer of the State of North Carolina | 105,433 | $20.7M | 0.06% | +6,633+6.7% | Added |
| Candriam Luxembourg S.C.A. | 104,136 | $20.4M | 0.11% | +2,409+2.4% | Added |
| Pictet Asset Management Holding SA | 102,338 | $20.1M | 0.02% | −59,915−36.9% | Reduced |
| Mercer Global Advisors Inc | 101,846 | $20.0M | 0.03% | +4,219+4.3% | Added |
| Natixis Advisors, L.P. | 98,873 | $19.4M | 0.03% | +1,871+1.9% | Added |
| Man Group plc | 98,184 | $19.2M | 0.04% | +17,994+22.4% | Added |
| Aviva PLC | 97,284 | $19.1M | 0.03% | +2,427+2.6% | Added |
| Schwartz Investment Counsel Inc | 95,900 | $18.8M | 0.67% | 00.0% | Unchanged |
| ABN AMRO Bank N.V. | 94,640 | $18.7M | 0.20% | +5,658+6.4% | Added |
| Russell Investments Group, Ltd. | 95,214 | $18.7M | 0.02% | −835−0.9% | Reduced |
| State Board of Administration of Florida Retirement System | 95,221 | $18.7M | 0.03% | −1,643−1.7% | Reduced |
| Midwest Trust Co | 95,200 | $18.7M | 0.23% | −300−0.3% | Reduced |
| Swedbank AB | 93,794 | $18.4M | 0.02% | +326+0.3% | Added |
| Captrust Financial Advisors | 93,277 | $18.3M | 0.03% | +67,960+268.4% | Added |
| Blair William & Co | 91,972 | $18.0M | 0.05% | −11,403−11.0% | Reduced |
| Manufacturers Life Insurance Company, The | 91,034 | $17.8M | 0.02% | +272+0.3% | Added |
| Wellington Management Group LLP | 90,736 | $17.8M | 0.00% | −9,410−9.4% | Reduced |
| Kames Capital plc | 90,605 | $17.8M | 0.24% | 00.0% | Unchanged |
| Boston Common Asset Management, LLC | 90,326 | $17.7M | 1.14% | +13,037+16.9% | Added |
| Ceredex Value Advisors LLC | 87,112 | $17.1M | 0.54% | +87,112 | New |
| FIL Ltd | 86,569 | $17.0M | 0.01% | +55,598+179.5% | Added |
| New York State Teachers Retirement System | 86,493 | $17.0M | 0.03% | 00.0% | Unchanged |
| Glenmede Trust Co NA | 85,694 | $16.8M | 0.08% | −2,882−3.3% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 81,897 | $16.1M | 0.05% | −3,650−4.3% | Reduced |
| Virginia Retirement Systems Et Al | 80,413 | $15.8M | 0.12% | −43,463−35.1% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 79,920 | $15.7M | 0.09% | +29,600+58.8% | Added |
| SEI Investments Co | 79,588 | $15.6M | 0.01% | +8,025+11.2% | Added |
| Eastern Bank | 77,995 | $15.3M | 0.26% | +66,183+560.3% | Added |
| CSM Advisors, LLC | 76,714 | $15.0M | 0.37% | −11,999−13.5% | Reduced |
| Payden & Rygel | 76,600 | $15.0M | 1.17% | −16,800−18.0% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 76,469 | $15.0M | 0.04% | −1,115−1.4% | Reduced |
| Abn Amro Investment Solutions | 76,360 | $15.0M | 0.19% | +4,098+5.7% | Added |
| State of Wisconsin Investment Board | 73,355 | $14.4M | 0.03% | −2,914−3.8% | Reduced |
| CIBC Asset Management Inc | 72,897 | $14.3M | 0.03% | −19,232−20.9% | Reduced |
| Paradiem, LLC | 71,480 | $14.0M | 3.09% | −7,190−9.1% | Reduced |
| Danske Bank A/S | 69,961 | $13.7M | 0.03% | −5,200−6.9% | Reduced |
| Hancock Whitney Corp | 68,038 | $13.3M | 0.23% | −314−0.5% | Reduced |
| JGP Wealth Management, LLC | 67,562 | $13.2M | 1.38% | −13,995−17.2% | Reduced |
| Public Employees Retirement System of Ohio | 66,849 | $13.1M | 0.04% | +2,407+3.7% | Added |
| Nordea Investment Management AB | 65,960 | $12.9M | 0.01% | +2,429+3.8% | Added |
| Becker Capital Management Inc | 62,849 | $12.3M | 0.36% | +683+1.1% | Added |
| First National Bank of Omaha | 60,694 | $11.9M | 0.37% | +495+0.8% | Added |
| HighTower Advisors, LLC | 60,014 | $11.8M | 0.01% | +18,667+45.1% | Added |
| Integral Health Asset Management, LLC | 60,000 | $11.8M | 0.62% | −15,000−20.0% | Reduced |
| Exencial Wealth Advisors, LLC | 59,260 | $11.6M | 0.36% | −2,860−4.6% | Reduced |
| TD Asset Management Inc | 57,605 | $11.3M | 0.01% | +2,617+4.8% | Added |
| KBC Group NV | 57,563 | $11.3M | 0.03% | +1,249+2.2% | Added |
| Vanguard Investments Australia, Ltd. | 55,689 | $10.9M | 0.03% | +55,689 | New |
| Prudential Financial Inc | 55,482 | $10.9M | 0.01% | −671−1.2% | Reduced |
| Canada Pension Plan Investment Board | 55,300 | $10.8M | 0.01% | −35,400−39.0% | Reduced |
| Korea Investment CORP | 52,929 | $10.4M | 0.02% | +8,100+18.1% | Added |
| Swiss Life Asset Management Ltd | 52,866 | $10.4M | 0.05% | +9,528+22.0% | Added |
| New York State Common Retirement Fund | 52,863 | $10.4M | 0.01% | 00.0% | Unchanged |
| Royal London Asset Management Ltd | 51,570 | $10.1M | 0.02% | +7,193+16.2% | Added |
| AIA Group Ltd | 50,374 | $9.87M | 0.14% | −4,777−8.7% | Reduced |
| AQR Capital Management LLC | 50,267 | $9.85M | 0.00% | −16,950−25.2% | Reduced |
| Vontobel Holding Ltd. | 50,266 | $9.85M | 0.03% | −10,498−17.3% | Reduced |
| Millennium Management LLC | 50,166 | $9.83M | 0.01% | +1,750+3.6% | Added |
| Casdin Capital, LLC | 50,000 | $9.80M | 0.74% | 00.0% | Unchanged |
| Prudential PLC | 49,277 | $9.66M | 0.07% | 00.0% | Unchanged |
| Hilton Capital Management, LLC | 49,211 | $9.64M | 0.73% | +1,435+3.0% | Added |
| National Bank of Canada | 48,962 | $9.60M | 0.01% | −50,830−50.9% | Reduced |
| Nomura Asset Management Co Ltd | 48,847 | $9.57M | 0.02% | +409+0.8% | Added |
| Lazard Asset Management LLC | 48,586 | $9.52M | 0.02% | −27,248−35.9% | Reduced |
| Asset Management One Co.,Ltd. | 47,326 | $9.27M | 0.03% | +1,997+4.4% | Added |
| National Pension Service | 47,115 | $9.23M | 0.01% | +3,697+8.5% | Added |
| Heartland Advisors Inc | 46,986 | $9.21M | 0.47% | −1,277−2.6% | Reduced |
| Knights of Columbus Asset Advisors LLC | 46,772 | $9.17M | 0.52% | +693+1.5% | Added |
| Tredje AP-fonden | 46,589 | $9.13M | 0.05% | +33,372+252.5% | Added |
| Calamos Advisors LLC | 43,506 | $8.53M | 0.03% | +43,506 | New |
| Resona Asset Management Co.,Ltd. | 43,353 | $8.50M | 0.04% | −144−0.3% | Reduced |
| Commonwealth Equity Services, LLC | 42,879 | $8.40M | 0.01% | −3,042−6.6% | Reduced |
| Mn Services Vermogensbeheer B.V. | 42,366 | $8.30M | 0.05% | 00.0% | Unchanged |
| Artia Global Partners LP | 40,817 | $8.00M | 1.80% | 00.0% | Unchanged |
| Neuberger Berman Group LLC | 40,652 | $7.97M | 0.01% | −3,169−7.2% | Reduced |
| CIBC Bancorp USA Inc. | 39,761 | $7.79M | 0.01% | +39,761 | New |
| Commerce Bank | 39,748 | $7.79M | 0.04% | +25,820+185.4% | Added |
| Cerity Partners LLC | 39,590 | $7.76M | 0.01% | −2,510−6.0% | Reduced |
| KLP Kapitalforvaltning AS | 39,403 | $7.72M | 0.03% | 00.0% | Unchanged |
| Oppenheimer & Co Inc | 38,731 | $7.59M | 0.09% | +897+2.4% | Added |
| CI Private Wealth, LLC | 39,325 | $7.56M | 0.01% | +2,712+7.4% | Added |
| GHP Investment Advisors, Inc. | 38,201 | $7.49M | 0.31% | −285−0.7% | Reduced |
| The PNC Financial Services Group, Inc. | 38,198 | $7.49M | 0.00% | +1,457+4.0% | Added |
| TD Waterhouse Canada Inc. | 37,352 | $7.37M | 0.02% | −3,843−9.3% | Reduced |
| Cetera Investment Advisers | 37,274 | $7.30M | 0.01% | +8,362+28.9% | Added |
| Toroso Investments, LLC | 37,064 | $7.26M | 0.02% | +30,172+437.8% | Added |
| Capital Wealth Planning, LLC | 36,994 | $7.25M | 0.04% | +384+1.0% | Added |
| Allianz Asset Management GmbH | 36,990 | $7.25M | 0.01% | −27,716−42.8% | Reduced |
| State of New Jersey Common Pension Fund D | 36,370 | $7.13M | 0.03% | 00.0% | Unchanged |
| Olstein Capital Management, L.P. | 35,800 | $7.02M | 1.53% | −4,200−10.5% | Reduced |
| Handelsbanken Fonder AB | 35,361 | $6.93M | 0.02% | −91−0.3% | Reduced |
| Fifth Third Bancorp | 35,096 | $6.88M | 0.01% | +26,233+296.0% | Added |
| Railway Pension Investments Ltd | 34,500 | $6.76M | 0.10% | +34,500 | New |
| Jefferies Financial Group Inc. | 33,473 | $6.56M | 0.08% | −7,646−18.6% | Reduced |
| Susquehanna Portfolio Strategies, LLC | 32,993 | $6.47M | 0.10% | −3,428−9.4% | Reduced |
| Toronto Dominion Bank | 32,946 | $6.46M | 0.01% | −16,753−33.7% | Reduced |
| Level Four Advisory Services, LLC | 32,688 | $6.41M | 0.21% | −2,174−6.2% | Reduced |
| American Assets Investment Management, LLC | 32,000 | $6.27M | 0.43% | 00.0% | Unchanged |
| Pathstone Holdings, LLC | 31,677 | $6.21M | 0.02% | −2,454−7.2% | Reduced |
| Illinois Municipal Retirement Fund | 31,496 | $6.17M | 0.08% | +3,395+12.1% | Added |