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 |
|---|---|---|---|---|---|
| Tredje AP-fonden | 46,589 | $9.13M | 0.05% | +33,372+252.5% | Added |
| Knights of Columbus Asset Advisors LLC | 46,772 | $9.17M | 0.52% | +693+1.5% | Added |
| Heartland Advisors Inc | 46,986 | $9.21M | 0.47% | −1,277−2.6% | Reduced |
| National Pension Service | 47,115 | $9.23M | 0.01% | +3,697+8.5% | Added |
| Asset Management One Co.,Ltd. | 47,326 | $9.27M | 0.03% | +1,997+4.4% | Added |
| Lazard Asset Management LLC | 48,586 | $9.52M | 0.02% | −27,248−35.9% | Reduced |
| Nomura Asset Management Co Ltd | 48,847 | $9.57M | 0.02% | +409+0.8% | Added |
| National Bank of Canada | 48,962 | $9.60M | 0.01% | −50,830−50.9% | Reduced |
| Hilton Capital Management, LLC | 49,211 | $9.64M | 0.73% | +1,435+3.0% | Added |
| Prudential PLC | 49,277 | $9.66M | 0.07% | 00.0% | Unchanged |
| Casdin Capital, LLC | 50,000 | $9.80M | 0.74% | 00.0% | Unchanged |
| Millennium Management LLC | 50,166 | $9.83M | 0.01% | +1,750+3.6% | Added |
| Vontobel Holding Ltd. | 50,266 | $9.85M | 0.03% | −10,498−17.3% | Reduced |
| AQR Capital Management LLC | 50,267 | $9.85M | 0.00% | −16,950−25.2% | Reduced |
| AIA Group Ltd | 50,374 | $9.87M | 0.14% | −4,777−8.7% | Reduced |
| Royal London Asset Management Ltd | 51,570 | $10.1M | 0.02% | +7,193+16.2% | Added |
| New York State Common Retirement Fund | 52,863 | $10.4M | 0.01% | 00.0% | Unchanged |
| Swiss Life Asset Management Ltd | 52,866 | $10.4M | 0.05% | +9,528+22.0% | Added |
| Korea Investment CORP | 52,929 | $10.4M | 0.02% | +8,100+18.1% | Added |
| Canada Pension Plan Investment Board | 55,300 | $10.8M | 0.01% | −35,400−39.0% | Reduced |
| Prudential Financial Inc | 55,482 | $10.9M | 0.01% | −671−1.2% | Reduced |
| Vanguard Investments Australia, Ltd. | 55,689 | $10.9M | 0.03% | +55,689 | New |
| KBC Group NV | 57,563 | $11.3M | 0.03% | +1,249+2.2% | Added |
| TD Asset Management Inc | 57,605 | $11.3M | 0.01% | +2,617+4.8% | Added |
| Exencial Wealth Advisors, LLC | 59,260 | $11.6M | 0.36% | −2,860−4.6% | Reduced |
| Integral Health Asset Management, LLC | 60,000 | $11.8M | 0.62% | −15,000−20.0% | Reduced |
| HighTower Advisors, LLC | 60,014 | $11.8M | 0.01% | +18,667+45.1% | Added |
| First National Bank of Omaha | 60,694 | $11.9M | 0.37% | +495+0.8% | Added |
| Becker Capital Management Inc | 62,849 | $12.3M | 0.36% | +683+1.1% | Added |
| Nordea Investment Management AB | 65,960 | $12.9M | 0.01% | +2,429+3.8% | Added |
| Public Employees Retirement System of Ohio | 66,849 | $13.1M | 0.04% | +2,407+3.7% | Added |
| JGP Wealth Management, LLC | 67,562 | $13.2M | 1.38% | −13,995−17.2% | Reduced |
| Hancock Whitney Corp | 68,038 | $13.3M | 0.23% | −314−0.5% | Reduced |
| Danske Bank A/S | 69,961 | $13.7M | 0.03% | −5,200−6.9% | Reduced |
| Paradiem, LLC | 71,480 | $14.0M | 3.09% | −7,190−9.1% | Reduced |
| CIBC Asset Management Inc | 72,897 | $14.3M | 0.03% | −19,232−20.9% | Reduced |
| State of Wisconsin Investment Board | 73,355 | $14.4M | 0.03% | −2,914−3.8% | Reduced |
| Abn Amro Investment Solutions | 76,360 | $15.0M | 0.19% | +4,098+5.7% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 76,469 | $15.0M | 0.04% | −1,115−1.4% | Reduced |
| Payden & Rygel | 76,600 | $15.0M | 1.17% | −16,800−18.0% | Reduced |
| CSM Advisors, LLC | 76,714 | $15.0M | 0.37% | −11,999−13.5% | Reduced |
| Eastern Bank | 77,995 | $15.3M | 0.26% | +66,183+560.3% | Added |
| SEI Investments Co | 79,588 | $15.6M | 0.01% | +8,025+11.2% | Added |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 79,920 | $15.7M | 0.09% | +29,600+58.8% | Added |
| Virginia Retirement Systems Et Al | 80,413 | $15.8M | 0.12% | −43,463−35.1% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 81,897 | $16.1M | 0.05% | −3,650−4.3% | Reduced |
| Glenmede Trust Co NA | 85,694 | $16.8M | 0.08% | −2,882−3.3% | Reduced |
| New York State Teachers Retirement System | 86,493 | $17.0M | 0.03% | 00.0% | Unchanged |
| FIL Ltd | 86,569 | $17.0M | 0.01% | +55,598+179.5% | Added |
| Ceredex Value Advisors LLC | 87,112 | $17.1M | 0.54% | +87,112 | New |
| Boston Common Asset Management, LLC | 90,326 | $17.7M | 1.14% | +13,037+16.9% | Added |
| Kames Capital plc | 90,605 | $17.8M | 0.24% | 00.0% | Unchanged |
| Wellington Management Group LLP | 90,736 | $17.8M | 0.00% | −9,410−9.4% | Reduced |
| Manufacturers Life Insurance Company, The | 91,034 | $17.8M | 0.02% | +272+0.3% | Added |
| Blair William & Co | 91,972 | $18.0M | 0.05% | −11,403−11.0% | Reduced |
| Captrust Financial Advisors | 93,277 | $18.3M | 0.03% | +67,960+268.4% | Added |
| Swedbank AB | 93,794 | $18.4M | 0.02% | +326+0.3% | Added |
| Midwest Trust Co | 95,200 | $18.7M | 0.23% | −300−0.3% | Reduced |
| State Board of Administration of Florida Retirement System | 95,221 | $18.7M | 0.03% | −1,643−1.7% | Reduced |
| Russell Investments Group, Ltd. | 95,214 | $18.7M | 0.02% | −835−0.9% | Reduced |
| ABN AMRO Bank N.V. | 94,640 | $18.7M | 0.20% | +5,658+6.4% | Added |
| Schwartz Investment Counsel Inc | 95,900 | $18.8M | 0.67% | 00.0% | Unchanged |
| Aviva PLC | 97,284 | $19.1M | 0.03% | +2,427+2.6% | Added |
| Man Group plc | 98,184 | $19.2M | 0.04% | +17,994+22.4% | Added |
| Natixis Advisors, L.P. | 98,873 | $19.4M | 0.03% | +1,871+1.9% | Added |
| Mercer Global Advisors Inc | 101,846 | $20.0M | 0.03% | +4,219+4.3% | Added |
| Pictet Asset Management Holding SA | 102,338 | $20.1M | 0.02% | −59,915−36.9% | Reduced |
| Candriam Luxembourg S.C.A. | 104,136 | $20.4M | 0.11% | +2,409+2.4% | Added |
| Treasurer of the State of North Carolina | 105,433 | $20.7M | 0.06% | +6,633+6.7% | Added |
| Tocqueville Asset Management L.P. | 107,479 | $21.1M | 0.31% | −1,740−1.6% | Reduced |
| Moran Wealth Management, LLC | 108,351 | $21.2M | 0.65% | +4,287+4.1% | Added |
| Standard Life Aberdeen plc | 108,671 | $21.3M | 0.03% | +3,785+3.6% | Added |
| LPL Financial LLC | 110,753 | $21.7M | 0.01% | +27,367+32.8% | Added |
| Stifel Financial Corp | 112,033 | $22.0M | 0.02% | −989−0.9% | Reduced |
| Robeco Institutional Asset Management B.V. | 112,412 | $22.0M | 0.03% | +2,898+2.6% | Added |
| Silvercrest Asset Management Group LLC | 114,758 | $22.5M | 0.16% | +2,507+2.2% | Added |
| Franklin Resources Inc | 121,667 | $23.8M | 0.01% | +75,399+163.0% | Added |
| Wiley Bros.-Aintree Capital, LLC | 122,183 | $24.0M | 0.12% | +11,081+10.0% | Added |
| Mackenzie Financial Corp | 126,510 | $24.8M | 0.03% | +21,664+20.7% | Added |
| Gotham Asset Management, LLC | 130,777 | $25.6M | 0.08% | +51,382+64.7% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 131,935 | $25.8M | 0.04% | +12,066+10.1% | Added |
| APG Asset Management N.V. | 153,939 | $26.2M | 0.08% | −43,953−22.2% | Reduced |
| Achmea Investment Management B.V. | 137,119 | $26.9M | 0.71% | −869−0.6% | Reduced |
| SEB Asset Management AB | 139,951 | $27.4M | 0.12% | +139,951 | New |
| Storebrand Asset Management AS | 140,574 | $27.5M | 0.08% | −2,334−1.6% | Reduced |
| D. E. Shaw & Co., Inc. | 147,727 | $29.0M | 0.02% | −181,007−55.1% | Reduced |
| Credit Agricole S A | 148,560 | $29.1M | 0.10% | −3,748−2.5% | Reduced |
| Colony Group, LLC | 150,856 | $29.6M | 0.03% | −3,126−2.0% | Reduced |
| Willis Investment Counsel | 151,800 | $29.7M | 1.62% | 00.0% | Unchanged |
| Copeland Capital Management, LLC | 155,348 | $30.4M | 0.68% | −4,289−2.7% | Reduced |
| Cookson Peirce & Co Inc | 156,342 | $30.6M | 1.30% | −5,161−3.2% | Reduced |
| Braun Stacey Associates Inc | 156,832 | $30.7M | 1.02% | +2,978+1.9% | Added |
| California State Teachers Retirement System | 162,238 | $31.8M | 0.03% | −5,763−3.4% | Reduced |
| Antipodes Partners Ltd | 162,589 | $31.9M | 0.61% | −9,398−5.5% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 170,912 | $33.5M | 0.06% | +2,515+1.5% | Added |
| Conning Inc. | 175,906 | $34.5M | 1.15% | +2,644+1.5% | Added |
| Voya Investment Management LLC | 186,175 | $36.5M | 0.04% | +84,547+83.2% | Added |
| HSBC Holdings PLC | 195,144 | $38.2M | 0.02% | −31,963−14.1% | Reduced |
| Royal Bank of Canada | 198,534 | $38.9M | 0.01% | −30,197−13.2% | Reduced |
| Marshall Wace, LLP | 200,278 | $39.3M | 0.04% | +107,061+114.9% | Added |