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, Q3 2025
Institutional positions in Quest Diagnostics Inc as of Sep 30, 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
- 1,006
- +34 vs. Q2 2025
- Shares held
- 105.0M
- −1.02M (−1.0%) vs. Q2 2025
- Total value
- $20.0B
- +$944.3M (+5.0%) vs. Q2 2025
- New holders
- 115
- 359 more added
- Sold out
- 81
- 342 more reduced
19 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Boston Partners | 4,036,881 | $768.0M | 0.79% | +997,033+32.8% | Added |
| JPMorgan Chase & Co | 4,317,391 | $822.8M | 0.05% | −14,269−0.3% | Reduced |
| State Street Corp | 5,223,930 | $995.6M | 0.03% | +38,931+0.8% | Added |
| Price T Rowe Associates Inc | 7,005,990 | $1.34B | 0.14% | −188,707−2.6% | Reduced |
| BlackRock, Inc. | 10,002,035 | $1.91B | 0.03% | −310,940−3.0% | Reduced |
| Vanguard Group Inc | 14,251,632 | $2.72B | 0.04% | +18,056+0.1% | Added |
| Erste Asset Management GmbH | 0 | $0 | 0.00% | −4,577−100.0% | Sold out |
| Wedge Capital Management L L P | 0 | $0 | 0.00% | −174,290−100.0% | Sold out |
| Distillate Capital Partners LLC | 0 | $0 | 0.00% | −93,774−100.0% | Sold out |
| Adams Diversified Equity Fund, Inc. | 0 | $0 | 0.00% | −52,100−100.0% | Sold out |
| Parkman Healthcare Partners LLC | 0 | $0 | 0.00% | −40,997−100.0% | Sold out |
| Mediolanum International Funds Ltd | 0 | $0 | 0.00% | −39,243−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −28,373−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −25,389−100.0% | Sold out |
| Nicholas Company, Inc. | 0 | $0 | 0.00% | −18,331−100.0% | Sold out |
| Nkcfo LLC | 0 | $0 | 0.00% | −16,720−100.0% | Sold out |
| Bayesian Capital Management, LP | 0 | $0 | 0.00% | −15,700−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −12,640−100.0% | Sold out |
| Portfolio Design Labs, LLC | 0 | $0 | 0.00% | −10,506−100.0% | Sold out |
| Easterly Investment Partners LLC | 0 | $0 | 0.00% | −10,379−100.0% | Sold out |
| Ascent Group, LLC | 0 | $0 | 0.00% | −9,498−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −8,853−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −8,316−100.0% | Sold out |
| Simplify Asset Management Inc. | 0 | $0 | 0.00% | −8,161−100.0% | Sold out |
| Railway Pension Investments Ltd | 0 | $0 | 0.00% | −7,100−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −6,414−100.0% | Sold out |
| Brandes Investment Partners, LP | 0 | $0 | 0.00% | −6,212−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −6,139−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −4,910−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −4,900−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −4,413−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −4,094−100.0% | Sold out |
| Klingenstein Fields & Co LP | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| USA Financial Portformulas Corp | 0 | $0 | 0.00% | −3,855−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −3,529−100.0% | Sold out |
| Parallax Volatility Advisers, L.P. | 0 | $0 | 0.00% | −3,467−100.0% | Sold out |
| V-Square Quantitative Management LLC | 0 | $0 | 0.00% | −3,463−100.0% | Sold out |
| Pitcairn Co | 0 | $0 | 0.00% | −3,342−100.0% | Sold out |
| Aptus Capital Advisors, LLC | 0 | $0 | 0.00% | −2,634−100.0% | Sold out |
| Board of the Pension Protection Fund | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −1,981−100.0% | Sold out |
| Worldquant Millennium Advisors LLC | 0 | $0 | 0.00% | −1,823−100.0% | Sold out |
| Morningstar Investment Management LLC | 0 | $0 | 0.00% | −1,751−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −1,696−100.0% | Sold out |
| MBB Public Markets I LLC | 0 | $0 | 0.00% | −1,566−100.0% | Sold out |
| Claro Advisors LLC | 0 | $0 | 0.00% | −1,556−100.0% | Sold out |
| NewEdge Wealth, LLC | 0 | $0 | 0.00% | −1,562−100.0% | Sold out |
| Gillespie Robinson & Grimm Inc | 0 | $0 | 0.00% | −1,475−100.0% | Sold out |
| Scharf Investments, LLC | 0 | $0 | 0.00% | −1,413−100.0% | Sold out |
| Stanley-Laman Group, Ltd. | 0 | $0 | 0.00% | −1,398−100.0% | Sold out |
| High Net Worth Advisory Group LLC | 0 | $0 | 0.00% | −1,350−100.0% | Sold out |
| Dakota Wealth Management | 0 | $0 | 0.00% | −1,330−100.0% | Sold out |
| Clarius Group, LLC | 0 | $0 | 0.00% | −1,316−100.0% | Sold out |
| Trust Investment Advisors | 0 | $0 | 0.00% | −1,240−100.0% | Sold out |
| Fisher Asset Management, LLC | 0 | $0 | 0.00% | −1,224−100.0% | Sold out |
| Perbak Capital Partners LLP | 0 | $0 | 0.00% | −1,224−100.0% | Sold out |
| Perkins Coie Trust Co | 0 | $0 | 0.00% | −1,155−100.0% | Sold out |
| Members Capital Advisors Inc | 0 | $0 | 0.00% | −1,140−100.0% | Sold out |
| Headlands Technologies LLC | 0 | $0 | 0.00% | −950−100.0% | Sold out |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −522−100.0% | Sold out |
| Ofi Invest Asset Management | 0 | $0 | 0.00% | −609−100.0% | Sold out |
| Bank Julius Baer & Co. Ltd, Zurich | 0 | $0 | 0.00% | −393−100.0% | Sold out |
| GeoWealth Management, LLC | 0 | $0 | 0.00% | −369−100.0% | Sold out |
| Ridgewood Investments LLC | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Sierra Ocean, LLC | 0 | $0 | 0.00% | −193−100.0% | Sold out |
| Louisbourg Investments Inc. | 0 | $0 | 0.00% | −136−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −117−100.0% | Sold out |
| Whipplewood Advisors, LLC | 0 | $0 | 0.00% | −94−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Bellwether Advisors, LLC | 0 | $0 | 0.00% | −75−100.0% | Sold out |
| Beacon Capital Management, LLC | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| Riggs Asset Managment Co. Inc. | 0 | $0 | 0.00% | −56−100.0% | Sold out |
| GFG Capital, LLC | 0 | $0 | 0.00% | −49−100.0% | Sold out |
| Plante Moran Financial Advisors, LLC | 0 | $0 | 0.00% | −46−100.0% | Sold out |
| Blume Capital Management, Inc. | 0 | $0 | 0.00% | −45−100.0% | Sold out |
| Aster Capital Management (DIFC) Ltd | 0 | $0 | 0.00% | −23−100.0% | Sold out |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 0 | $0 | 0.00% | −18−100.0% | Sold out |
| HHM Wealth Advisors, LLC | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| WealthTrak Capital Management LLC | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| Signature Resources Capital Management, LLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| Total Investment Management Inc | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Stephens Consulting, LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Highline Wealth Partners LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Arlington Trust Co LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Transce3nd, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Crewe Advisors LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| LGT Financial Advisors LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| Churchill Management Corp | – | – | – | – | Not filed |
| CIBC World Markets Corp | – | – | – | – | Not filed |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |
| Wambolt & Associates, LLC | – | – | – | – | Not filed |
| Atlas Capital Advisors LLC | – | – | – | – | Not filed |
| Vega Investment Solutions | – | – | – | – | Not filed |
| EP Wealth Advisors, LLC | – | – | – | – | Not filed |
| Keudell/Morrison Wealth Management | – | – | – | – | Not filed |
| Schnieders Capital Management LLC | – | – | – | – | Not filed |
| E Fund Management Co., Ltd. | – | – | – | – | Not filed |
| Talon Private Wealth, LLC | – | – | – | – | Not filed |
| Sebold Capital Management, Inc. | – | – | – | – | Not filed |