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, Q2 2026
Institutional positions in Quest Diagnostics Inc as of Jun 30, 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
- 1,112
- +52 vs. Q1 2026
- Shares held
- 104.9M
- +2.36M (+2.3%) vs. Q1 2026
- Total value
- $22.2B
- +$2.12B (+10.6%) vs. Q1 2026
- New holders
- 122
- 429 more added
- Sold out
- 70
- 354 more reduced
9 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,275,411 | $1.97B | 0.03% | +103,119+1.1% | Added |
| Vanguard Capital Management LLC | 7,233,394 | $1.53B | 0.03% | +87,722+1.2% | Added |
| Vanguard Portfolio Management LLC | 6,131,045 | $1.30B | 0.06% | +49,645+0.8% | Added |
| State Street Corp | 5,516,643 | $1.17B | 0.03% | +135,822+2.5% | Added |
| Price T Rowe Associates Inc | 5,444,986 | $1.15B | 0.12% | −853,001−13.5% | Reduced |
| Boston Partners | 4,744,473 | $1.00B | 0.89% | +732,241+18.3% | Added |
| JPMorgan Chase & Co | 3,520,438 | $748.6M | 0.04% | −326,018−8.5% | Reduced |
| Geode Capital Management, LLC | 3,137,873 | $662.6M | 0.04% | +51,565+1.7% | Added |
| Morgan Stanley | 2,460,497 | $521.5M | 0.03% | −19,223−0.8% | Reduced |
| EdgePoint Investment Group Inc. | 2,247,568 | $476.4M | 3.60% | +3,699+0.2% | Added |
| Dimensional Fund Advisors LP | 1,988,048 | $421.4M | 0.08% | +38,513+2.0% | Added |
| Bank of America Corp | 1,935,133 | $410.2M | 0.03% | +182,231+10.4% | Added |
| Grantham, Mayo, Van Otterloo & Co. LLC | 1,888,207 | $400.2M | 0.90% | +5,183+0.3% | Added |
| Wells Fargo & Company | 1,751,220 | $371.2M | 0.06% | −11,549−0.7% | Reduced |
| Davis Selected Advisers | 1,555,612 | $329.8M | 1.42% | −62,201−3.8% | Reduced |
| Victory Capital Management Inc | 1,550,556 | $328.6M | 0.18% | −295,780−16.0% | Reduced |
| Norges Bank | 1,406,620 | $298.1M | 0.03% | +1,406,620 | New |
| FMR LLC | 1,398,735 | $296.5M | 0.01% | +456,517+48.5% | Added |
| Invesco Ltd. | 1,379,115 | $292.3M | 0.02% | −259,372−15.8% | Reduced |
| Northern Trust Corp | 1,127,454 | $239.0M | 0.03% | +13,235+1.2% | Added |
| Goldman Sachs Group Inc | 982,694 | $208.3M | 0.02% | −366,000−27.1% | Reduced |
| UBS Asset Management Americas Inc | 942,407 | $199.7M | 0.04% | +95,804+11.3% | Added |
| UBS Group AG | 888,906 | $188.4M | 0.03% | +186,569+26.6% | Added |
| American Century Companies Inc | 818,220 | $173.4M | 0.08% | −49,111−5.7% | Reduced |
| M&G Plc | 795,650 | $168.7M | 0.84% | −9,691−1.2% | Reduced |
| Charles Schwab Investment Management Inc | 773,711 | $164.0M | 0.02% | +12,921+1.7% | Added |
| Ameriprise Financial Inc | 759,975 | $161.1M | 0.03% | −47,502−5.9% | Reduced |
| Legal & General Group Plc | 717,085 | $152.0M | 0.03% | −19,540−2.7% | Reduced |
| DekaBank Deutsche Girozentrale | 748,680 | $146.2M | 0.25% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 629,339 | $133.4M | 0.02% | −26,622−4.1% | Reduced |
| Vanguard Fiduciary Trust Co | 621,639 | $131.8M | 0.03% | +2,459+0.4% | Added |
| Deutsche Bank AG | 585,895 | $124.2M | 0.04% | +34,996+6.4% | Added |
| Alliancebernstein L.P. | 625,894 | $122.7M | 0.04% | −55,264−8.1% | Reduced |
| Nuveen, LLC | 563,830 | $119.5M | 0.03% | +98,405+21.1% | Added |
| Principal Financial Group Inc | 517,225 | $109.6M | 0.05% | −8,808−1.7% | Reduced |
| Raymond James Financial Inc | 505,762 | $107.2M | 0.03% | +47,307+10.3% | Added |
| Amundi | 498,751 | $105.7M | 0.03% | +90,421+22.1% | Added |
| Woodline Partners LP | 485,841 | $103.0M | 0.32% | −107,903−18.2% | Reduced |
| Fiduciary Management Inc | 483,557 | $102.5M | 1.46% | −237,429−32.9% | Reduced |
| Artemis Investment Management LLP | 467,921 | $99.2M | 0.88% | +20,647+4.6% | Added |
| Crawford Investment Counsel Inc | 460,081 | $97.5M | 1.62% | −26,352−5.4% | Reduced |
| Barclays PLC | 448,726 | $95.1M | 0.03% | −116,744−20.6% | Reduced |
| Envestnet Asset Management Inc | 428,564 | $90.8M | 0.02% | +16,128+3.9% | Added |
| Schroder Investment Management Group | 417,715 | $88.8M | 0.06% | +122,680+41.6% | Added |
| BNP Paribas Arbitrage, SA | 395,245 | $83.8M | 0.04% | +124,964+46.2% | Added |
| Pacer Advisors, Inc. | 381,995 | $81.0M | 0.21% | −43,900−10.3% | Reduced |
| M.D. Sass Investors Services, Inc. | 360,453 | $76.4M | 5.06% | +60,994+20.4% | Added |
| Acadian Asset Management LLC | 346,489 | $73.4M | 0.09% | +107,057+44.7% | Added |
| Qube Research & Technologies Ltd | 343,398 | $72.8M | 0.08% | −391,316−53.3% | Reduced |
| Mackenzie Financial Corp | 333,295 | $70.6M | 0.07% | +206,785+163.5% | Added |
| Advisors Capital Management, LLC | 327,575 | $69.4M | 0.74% | +324+0.1% | Added |
| Citigroup Inc | 315,584 | $66.9M | 0.03% | +28,461+9.9% | Added |
| Swiss National Bank | 309,900 | $65.7M | 0.03% | −16,600−5.1% | Reduced |
| First Trust Advisors LP | 290,970 | $61.7M | 0.04% | −38,182−11.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 280,319 | $59.4M | 0.06% | +49,385+21.4% | Added |
| Balyasny Asset Management LLC | 275,371 | $58.4M | 0.11% | +272,473+9,402.1% | Added |
| Marshall Wace, LLP | 269,760 | $57.2M | 0.05% | +69,482+34.7% | Added |
| Great West Life Assurance Co | 269,711 | $57.0M | 0.09% | −35,980−11.8% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 268,354 | $56.9M | 0.03% | +16,913+6.7% | Added |
| Rhumbline Advisers | 267,727 | $56.7M | 0.04% | +4,380+1.7% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 258,597 | $54.8M | 0.03% | −6,157−2.3% | Reduced |
| Vanguard Asset Management, Ltd | 253,146 | $53.7M | 0.04% | +26,416+11.7% | Added |
| Quantinno Capital Management LP | 252,924 | $53.6M | 0.06% | +21,899+9.5% | Added |
| FIL Ltd | 251,976 | $53.4M | 0.04% | +165,407+191.1% | Added |
| Bank of Montreal | 243,647 | $51.6M | 0.02% | +33,282+15.8% | Added |
| Kempen Capital Management N.V. | 242,907 | $51.5M | 0.39% | −13,391−5.2% | Reduced |
| Clark Capital Management Group, Inc. | 241,846 | $51.3M | 0.28% | +6,424+2.7% | Added |
| Vanguard Global Advisers, LLC | 240,742 | $51.0M | 0.02% | −1,783−0.7% | Reduced |
| Nomura Asset Management International Inc. | 232,797 | $49.3M | 0.07% | +20,617+9.7% | Added |
| HSBC Holdings PLC | 224,986 | $47.8M | 0.02% | +29,842+15.3% | Added |
| Eurizon Capital SGR S.p.A. | 222,564 | $47.2M | 0.13% | −18,252−7.6% | Reduced |
| Royal Bank of Canada | 219,613 | $46.5M | 0.01% | +21,079+10.6% | Added |
| Voya Investment Management LLC | 211,496 | $44.8M | 0.04% | +25,321+13.6% | Added |
| PFA Pension, Forsikringsaktieselskab | 205,613 | $43.6M | 0.11% | +205,613 | New |
| Integral Health Asset Management, LLC | 200,000 | $42.4M | 1.74% | +140,000+233.3% | Added |
| California Public Employees Retirement System | 196,151 | $41.6M | 0.02% | −41,641−17.5% | Reduced |
| Eastern Bank | 189,969 | $40.3M | 0.62% | +111,974+143.6% | Added |
| Conning Inc. | 186,734 | $39.6M | 1.19% | +10,828+6.2% | Added |
| SEB Asset Management AB | 182,906 | $38.8M | 0.15% | +42,955+30.7% | Added |
| California State Teachers Retirement System | 174,776 | $37.0M | 0.03% | +12,538+7.7% | Added |
| Colony Group, LLC | 163,327 | $34.6M | 0.04% | +12,471+8.3% | Added |
| SG Americas Securities, LLC | 162,837 | $34.5M | 0.02% | −54,449−25.1% | Reduced |
| Storebrand Asset Management AS | 160,970 | $34.1M | 0.08% | +20,396+14.5% | Added |
| Cookson Peirce & Co Inc | 155,589 | $33.0M | 1.09% | −753−0.5% | Reduced |
| Credit Agricole S A | 155,438 | $32.9M | 0.08% | +6,878+4.6% | Added |
| Braun Stacey Associates Inc | 154,396 | $32.7M | 0.93% | −2,436−1.6% | Reduced |
| Willis Investment Counsel | 151,500 | $32.1M | 1.53% | −300−0.2% | Reduced |
| Copeland Capital Management, LLC | 144,784 | $30.7M | 0.63% | −10,564−6.8% | Reduced |
| LPL Financial LLC | 143,079 | $30.3M | 0.01% | +32,326+29.2% | Added |
| Citadel Advisors LLC | 133,211 | $28.2M | 0.02% | −214,007−61.6% | Reduced |
| APG Asset Management N.V. | 150,334 | $27.9M | 0.07% | −3,605−2.3% | Reduced |
| Silvercrest Asset Management Group LLC | 126,888 | $26.9M | 0.18% | +12,130+10.6% | Added |
| Achmea Investment Management B.V. | 124,786 | $26.4M | 0.66% | −12,333−9.0% | Reduced |
| Wiley Bros.-Aintree Capital, LLC | 124,363 | $26.4M | 0.11% | +2,180+1.8% | Added |
| Stifel Financial Corp | 123,220 | $26.1M | 0.02% | +11,187+10.0% | Added |
| Franklin Resources Inc | 120,973 | $25.6M | 0.01% | −694−0.6% | Reduced |
| Candriam Luxembourg S.C.A. | 120,238 | $25.5M | 0.11% | +16,102+15.5% | Added |
| Squarepoint Ops LLC | 117,831 | $25.0M | 0.05% | −227,957−65.9% | Reduced |
| Gotham Asset Management, LLC | 117,533 | $24.9M | 0.06% | −13,244−10.1% | Reduced |
| National Bank of Canada | 117,005 | $24.8M | 0.02% | +68,043+139.0% | Added |