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, Q4 2025
Institutional positions in Quest Diagnostics Inc as of Dec 31, 2025. 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
- 1,050
- +59 vs. Q3 2025
- Shares held
- 106.1M
- +1.44M (+1.4%) vs. Q3 2025
- Total value
- $18.4B
- −$1.53B (−7.7%) vs. Q3 2025
- New holders
- 149
- 350 more added
- Sold out
- 90
- 345 more reduced
15 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2025
Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisors Capital Management, LLC | 313,838 | $54.5M | 0.64% | +16,194+5.4% | Added |
| Great West Life Assurance Co | 319,293 | $55.4M | 0.10% | −123,368−27.9% | Reduced |
| D. E. Shaw & Co., Inc. | 328,734 | $57.0M | 0.04% | +328,734 | New |
| Barclays PLC | 333,302 | $57.8M | 0.02% | +82,170+32.7% | Added |
| Envestnet Asset Management Inc | 333,803 | $57.9M | 0.02% | −44,368−11.7% | Reduced |
| Nuveen, LLC | 334,034 | $58.0M | 0.02% | −4,213−1.2% | Reduced |
| Woodline Partners LP | 341,372 | $59.2M | 0.23% | +223,936+190.7% | Added |
| California Public Employees Retirement System | 350,249 | $60.8M | 0.03% | +11,268+3.3% | Added |
| First Trust Advisors LP | 351,709 | $61.0M | 0.04% | −19,839−5.3% | Reduced |
| Citadel Advisors LLC | 425,236 | $73.8M | 0.05% | +294,622+225.6% | Added |
| Pacer Advisors, Inc. | 447,727 | $77.7M | 0.20% | −3,171−0.7% | Reduced |
| Artemis Investment Management LLP | 460,725 | $79.9M | 0.97% | +29,084+6.7% | Added |
| Raymond James Financial Inc | 463,282 | $80.4M | 0.03% | +5,245+1.1% | Added |
| Amundi | 464,164 | $80.5M | 0.02% | +36,610+8.6% | Added |
| Crawford Investment Counsel Inc | 496,499 | $86.2M | 1.43% | +2,067+0.4% | Added |
| Principal Financial Group Inc | 531,286 | $92.2M | 0.05% | −3,184−0.6% | Reduced |
| Squarepoint Ops LLC | 565,800 | $98.2M | 0.20% | −71,492−11.2% | Reduced |
| Deutsche Bank AG | 609,081 | $105.7M | 0.03% | +84,935+16.2% | Added |
| Alliancebernstein L.P. | 632,407 | $109.7M | 0.03% | −2,366−0.4% | Reduced |
| DekaBank Deutsche Girozentrale | 748,680 | $114.3M | 0.21% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 670,741 | $116.4M | 0.02% | −150,839−18.4% | Reduced |
| Qube Research & Technologies Ltd | 733,456 | $127.3M | 0.18% | +203,656+38.4% | Added |
| Legal & General Group Plc | 742,974 | $128.9M | 0.03% | −12,701−1.7% | Reduced |
| Charles Schwab Investment Management Inc | 751,054 | $130.3M | 0.02% | +4,003+0.5% | Added |
| Ameriprise Financial Inc | 813,454 | $141.2M | 0.03% | −39,372−4.6% | Reduced |
| UBS Asset Management Americas Inc | 846,935 | $147.0M | 0.03% | −54,676−6.1% | Reduced |
| American Century Companies Inc | 870,500 | $151.1M | 0.08% | +1,415+0.2% | Added |
| M&G Plc | 945,052 | $164.4M | 0.85% | −145,325−13.3% | Reduced |
| Fiduciary Management Inc | 1,046,921 | $181.7M | 2.00% | −100,613−8.8% | Reduced |
| Northern Trust Corp | 1,078,573 | $187.2M | 0.02% | −74,752−6.5% | Reduced |
| UBS Group AG | 1,114,451 | $193.4M | 0.04% | +450,161+67.8% | Added |
| FMR LLC | 1,202,254 | $208.6M | 0.01% | −11,118−0.9% | Reduced |
| Norges Bank | 1,322,663 | $229.5M | 0.02% | +1,322,663 | New |
| Davis Selected Advisers | 1,589,883 | $275.9M | 1.24% | +228,271+16.8% | Added |
| Bank of America Corp | 1,622,938 | $281.6M | 0.02% | −12,137−0.7% | Reduced |
| EdgePoint Investment Group Inc. | 1,661,072 | $288.2M | 2.37% | +811,320+95.5% | Added |
| Invesco Ltd. | 1,666,979 | $289.3M | 0.03% | −21,790−1.3% | Reduced |
| Goldman Sachs Group Inc | 1,708,925 | $296.5M | 0.04% | +645,209+60.7% | Added |
| Wells Fargo & Company | 1,769,093 | $307.0M | 0.06% | −36,201−2.0% | Reduced |
| Grantham, Mayo, Van Otterloo & Co. LLC | 1,816,060 | $315.1M | 0.81% | +69,660+4.0% | Added |
| Dimensional Fund Advisors LP | 1,931,548 | $335.2M | 0.07% | +24,038+1.3% | Added |
| Victory Capital Management Inc | 2,126,422 | $369.0M | 0.21% | −217,552−9.3% | Reduced |
| Morgan Stanley | 2,693,568 | $467.4M | 0.03% | +406,658+17.8% | Added |
| Geode Capital Management, LLC | 3,028,207 | $523.5M | 0.03% | −8,278−0.3% | Reduced |
| Boston Partners | 3,913,326 | $680.0M | 0.70% | −123,555−3.1% | Reduced |
| JPMorgan Chase & Co | 4,145,896 | $719.4M | 0.05% | −171,495−4.0% | Reduced |
| State Street Corp | 5,382,547 | $934.0M | 0.03% | +158,617+3.0% | Added |
| Price T Rowe Associates Inc | 6,297,157 | $1.09B | 0.12% | −708,833−10.1% | Reduced |
| BlackRock, Inc. | 9,459,218 | $1.64B | 0.03% | −542,817−5.4% | Reduced |
| Vanguard Group Inc | 14,392,082 | $2.50B | 0.04% | +140,450+1.0% | Added |
| 8 Knots Management, LLC | 0 | $0 | 0.00% | −275,344−100.0% | Sold out |
| RTW Investments, LP | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −47,875−100.0% | Sold out |
| Thrive Capital Management, LLC | 0 | $0 | 0.00% | −22,798−100.0% | Sold out |
| J. Safra Sarasin Holding AG | 0 | $0 | 0.00% | −20,815−100.0% | Sold out |
| Sivik Global Healthcare LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| Soltis Investment Advisors LLC | 0 | $0 | 0.00% | −14,053−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −12,081−100.0% | Sold out |
| Elo Mutual Pension Insurance Co | 0 | $0 | 0.00% | −10,632−100.0% | Sold out |
| Peak Retirement Planning, Inc. | 0 | $0 | 0.00% | −9,775−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −8,757−100.0% | Sold out |
| Madison Asset Management, LLC | 0 | $0 | 0.00% | −7,562−100.0% | Sold out |
| Humankind Investments LLC | 0 | $0 | 0.00% | −6,452−100.0% | Sold out |
| Catalytic Wealth RIA, LLC | 0 | $0 | 0.00% | −6,206−100.0% | Sold out |
| Change Path, LLC | 0 | $0 | 0.00% | −6,093−100.0% | Sold out |
| Riverview Capital Advisers, LLC | 0 | $0 | 0.00% | −6,069−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −5,414−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −5,211−100.0% | Sold out |
| Natixis | 0 | $0 | 0.00% | −4,758−100.0% | Sold out |
| Contravisory Investment Management, Inc. | 0 | $0 | 0.00% | −4,628−100.0% | Sold out |
| Dynamic Advisor Solutions LLC | 0 | $0 | 0.00% | −4,082−100.0% | Sold out |
| MOKAN Wealth Management Inc. | 0 | $0 | 0.00% | −3,964−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −3,673−100.0% | Sold out |
| Kovitz Investment Group Partners, LLC | 0 | $0 | 0.00% | −3,645−100.0% | Sold out |
| Caxton Associates LLP | 0 | $0 | 0.00% | −3,528−100.0% | Sold out |
| Voleon Capital Management LP | 0 | $0 | 0.00% | −3,201−100.0% | Sold out |
| Cinctive Capital Management LP | 0 | $0 | 0.00% | −2,908−100.0% | Sold out |
| Twin Tree Management, LP | 0 | $0 | 0.00% | −2,850−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −2,571−100.0% | Sold out |
| Brighton Jones LLC | 0 | $0 | 0.00% | −2,548−100.0% | Sold out |
| Baader Bank INC | 0 | $0 | 0.00% | −2,331−100.0% | Sold out |
| TrueMark Investments, LLC | 0 | $0 | 0.00% | −2,301−100.0% | Sold out |
| Requisite Capital Management, LLC | 0 | $0 | 0.00% | −2,249−100.0% | Sold out |
| EHP Funds Inc. | 0 | $0 | 0.00% | −2,200−100.0% | Sold out |
| APG Asset Management US Inc. | 0 | $0 | 0.00% | −2,300−100.0% | Sold out |
| Davenport & Co LLC | 0 | $0 | 0.00% | −1,688−100.0% | Sold out |
| Rehmann Capital Advisory Group | 0 | $0 | 0.00% | −1,694−100.0% | Sold out |
| Bayforest Capital Ltd | 0 | $0 | 0.00% | −1,619−100.0% | Sold out |
| Marex Group plc | 0 | $0 | 0.00% | −1,500−100.0% | Sold out |
| Stratos Wealth Partners, LTD. | 0 | $0 | 0.00% | −1,479−100.0% | Sold out |
| Caisse de Depot Et Placement du Quebec | 0 | $0 | 0.00% | −1,396−100.0% | Sold out |
| NorthRock Partners, LLC | 0 | $0 | 0.00% | −1,363−100.0% | Sold out |
| Fukoku Mutual Life Insurance Co | 0 | $0 | 0.00% | −1,339−100.0% | Sold out |
| Polymer Capital Management (HK) LTD | 0 | $0 | 0.00% | −1,331−100.0% | Sold out |
| Citizens Financial Group Inc | 0 | $0 | 0.00% | −1,241−100.0% | Sold out |
| WSFS Capital Management, LLC | 0 | $0 | 0.00% | −1,238−100.0% | Sold out |
| CWA Asset Management Group, LLC | 0 | $0 | 0.00% | −1,217−100.0% | Sold out |
| Northern Financial Advisors Inc | 0 | $0 | 0.00% | −1,205−100.0% | Sold out |
| Perkins Capital Management Inc | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Wedbush Securities Inc | 0 | $0 | 0.00% | −1,157−100.0% | Sold out |