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 |
|---|---|---|---|---|---|
| Inscription Capital, LLC | 1,801 | $353.0K | 0.04% | −82−4.4% | Reduced |
| Brevan Howard Capital Management LP | 1,806 | $353.9K | 0.00% | −10,118−84.9% | Reduced |
| Gryphon Financial Partners LLC | 1,813 | $355.3K | 0.04% | −11−0.6% | Reduced |
| Schnieders Capital Management, LLC. | 1,817 | $356.1K | 0.06% | 00.0% | Unchanged |
| PFG Investments, LLC | 1,823 | $357.2K | 0.02% | −50−2.7% | Reduced |
| Legacy Capital Wealth Partners, LLC | 1,823 | $357.2K | 0.07% | −466−20.4% | Reduced |
| Advisor OS, LLC | 1,848 | $362.2K | 0.03% | +1,848 | New |
| Old North State Trust, LLC | 1,853 | $363.0K | 0.22% | +298+19.2% | Added |
| Wealthspire Advisors, LLC | 1,872 | $366.9K | 0.00% | −1,993−51.6% | Reduced |
| O'Keefe Stevens Advisory, Inc. | 1,875 | $367.5K | 0.09% | 00.0% | Unchanged |
| Brown Brothers Harriman & Co | 1,876 | $367.7K | 0.00% | +1,170+165.7% | Added |
| S.A. Mason LLC | 1,900 | $372.4K | 0.14% | 00.0% | Unchanged |
| Gabelli Funds LLC | 1,900 | $372.4K | 0.00% | +200+11.8% | Added |
| Silver Lake Advisory, LLC | 1,910 | $374.2K | 0.15% | −41−2.1% | Reduced |
| Snowden Capital Advisors LLC | 1,911 | $374.5K | 0.01% | +95+5.2% | Added |
| First American Trust, FSB | 1,913 | $375.0K | 0.03% | +16+0.8% | Added |
| Brookstone Capital Management | 1,951 | $382.3K | 0.00% | +668+52.1% | Added |
| E Fund Management Co., Ltd. | 1,958 | $383.7K | 0.01% | +1,958 | New |
| Commonwealth Financial Services, LLC | 1,980 | $388.1K | 0.06% | +172+9.5% | Added |
| Brighton Jones LLC | 1,987 | $389.4K | 0.01% | +1,987 | New |
| BCS Private Wealth Management, Inc. | 2,000 | $392.0K | 0.12% | −15−0.7% | Reduced |
| Holderness Investments Co | 2,000 | $392.0K | 0.08% | 00.0% | Unchanged |
| Cypress Capital Group | 2,000 | $392.0K | 0.04% | 00.0% | Unchanged |
| Chilton Investment Co LLC | 2,000 | $392.0K | 0.01% | +2,000 | New |
| Flagship Harbor Advisors, LLC | 2,012 | $394.3K | 0.02% | 00.0% | Unchanged |
| Gratus Wealth Advisors, LLC | 2,012 | $394.3K | 0.06% | −70−3.4% | Reduced |
| Sagespring Wealth Partners, LLC | 2,027 | $397.3K | 0.01% | −161−7.4% | Reduced |
| John G Ullman & Associates Inc | 2,032 | $398.2K | 0.05% | +100+5.2% | Added |
| Guggenheim Capital LLC | 2,043 | $400.4K | 0.00% | −408−16.6% | Reduced |
| Koshinski Asset Management, Inc. | 2,062 | $404.1K | 0.03% | +84+4.2% | Added |
| Tower Research Capital LLC (TRC) | 2,077 | $407.1K | 0.01% | −2,766−57.1% | Reduced |
| AlphaGrep UK Ltd | 2,106 | $412.7K | 0.12% | +705+50.3% | Added |
| Lester Murray Antman dba SimplyRich | 2,111 | $413.0K | 0.11% | +45+2.2% | Added |
| Moors & Cabot, Inc. | 2,116 | $414.8K | 0.02% | −548−20.6% | Reduced |
| Crestwood Advisors Group LLC | 2,125 | $416.5K | 0.01% | −577−21.4% | Reduced |
| TCG Advisory Services, LLC | 2,128 | $417.1K | 0.01% | +189+9.7% | Added |
| Montecito Bank & Trust | 2,154 | $422.1K | 0.07% | −320−12.9% | Reduced |
| DRW Securities, LLC | 2,175 | $426.3K | 0.02% | +247+12.8% | Added |
| Keudell/Morrison Wealth Management | 2,203 | $431.7K | 0.09% | +7+0.3% | Added |
| Walleye Capital LLC | 2,218 | $434.7K | 0.00% | −13,861−86.2% | Reduced |
| WealthShield Partners, LLC | 2,221 | $435.3K | 0.05% | −85−3.7% | Reduced |
| RSM US Wealth Management LLC | 2,261 | $443.1K | 0.01% | −973−30.1% | Reduced |
| Maple Capital Management, Inc. | 2,313 | $453.3K | 0.03% | −757−24.7% | Reduced |
| RD Lewis Holdings, Inc. | 2,298 | $454.6K | 0.39% | 00.0% | Unchanged |
| Meiji Yasuda Asset Management Co Ltd. | 2,322 | $455.1K | 0.02% | −15−0.6% | Reduced |
| First Wilshire Securities Management Inc | 2,350 | $460.6K | 0.10% | 00.0% | Unchanged |
| Waters Parkerson & Co., LLC | 2,350 | $460.6K | 0.02% | 00.0% | Unchanged |
| Ironsides Asset Advisors, LLC | 2,366 | $463.7K | 0.12% | +116+5.2% | Added |
| Raab & Moskowitz Asset Management LLC | 2,371 | $464.7K | 0.10% | 00.0% | Unchanged |
| WSFS Capital Management, LLC | 2,373 | $465.1K | 0.02% | +2,373 | New |
| Genesee Capital Advisors, LLC | 2,397 | $469.7K | 0.20% | +11+0.5% | Added |
| Quadrant Capital Group LLC | 2,404 | $471.1K | 0.01% | +131+5.8% | Added |
| Greenspring Advisors, LLC | 2,445 | $479.2K | 0.03% | +3+0.1% | Added |
| Diversify Advisory Services, LLC | 2,556 | $483.8K | 0.07% | −769−23.1% | Reduced |
| Acropolis Investment Management, LLC | 2,476 | $485.2K | 0.02% | −117−4.5% | Reduced |
| Jericho Financial, LLP | 2,482 | $486.4K | 0.31% | −140−5.3% | Reduced |
| Summit Financial, LLC | 2,483 | $486.6K | 0.01% | +294+13.4% | Added |
| Alps Advisors Inc | 2,483 | $486.6K | 0.00% | −30−1.2% | Reduced |
| Mitchell McLeod Pugh & Williams Inc | 2,494 | $488.8K | 0.07% | 00.0% | Unchanged |
| Searle & Co. | 2,500 | $489.9K | 0.12% | 00.0% | Unchanged |
| IHT Wealth Management, LLC | 2,503 | $490.5K | 0.01% | +22+0.9% | Added |
| Investment House LLC | 2,503 | $490.5K | 0.03% | 00.0% | Unchanged |
| Gateway Wealth Partners, LLC | 2,516 | $493.0K | 0.02% | +2,516 | New |
| BankPlus Wealth Management LLC | 2,524 | $495.1K | 0.26% | −22−0.9% | Reduced |
| Procyon Private Wealth Partners, LLC | 2,537 | $497.2K | 0.02% | +2,537 | New |
| Farther Finance Advisors, LLC | 2,538 | $501.7K | 0.00% | −105−4.0% | Reduced |
| Pinebridge Investments LLC | 2,574 | $504.5K | 0.00% | +2,574 | New |
| FWL Investment Management, LLC | 2,600 | $509.5K | 0.11% | +2,600 | New |
| Shufro Rose & Co LLC | 2,622 | $513.9K | 0.04% | 00.0% | Unchanged |
| Berkshire Asset Management LLC | 2,630 | $515.5K | 0.02% | +38+1.5% | Added |
| Fairvoy Private Wealth, LLC | 2,644 | $518.2K | 0.12% | −118−4.3% | Reduced |
| Triangle Securities Wealth Management | 2,647 | $518.8K | 0.12% | −37−1.4% | Reduced |
| STRS Ohio | 2,666 | $522.5K | 0.00% | −4−0.1% | Reduced |
| Sequent Asset Management, LLC | 2,692 | $527.6K | 0.25% | 00.0% | Unchanged |
| D.A. Davidson & Co. | 2,720 | $533.1K | 0.00% | +431+18.8% | Added |
| Essex Financial Services, Inc. | 2,722 | $533.5K | 0.03% | +252+10.2% | Added |
| Miracle Mile Advisors, LLC | 2,739 | $536.8K | 0.01% | +3+0.1% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 2,756 | $540.1K | 0.01% | −21,139−88.5% | Reduced |
| Hobart Private Capital, LLC | 2,757 | $540.3K | 0.11% | −183−6.2% | Reduced |
| Unified Investment Management | 2,783 | $545.4K | 0.56% | −269−8.8% | Reduced |
| Emergent Wealth Advisors, LLC | 2,800 | $548.7K | 0.32% | 00.0% | Unchanged |
| Wahed Invest LLC | 2,836 | $555.8K | 0.07% | +2,836 | New |
| Garrison Point Advisors, LLC | 2,856 | $559.7K | 0.26% | 00.0% | Unchanged |
| Syon Capital LLC | 2,867 | $561.9K | 0.03% | −1,200−29.5% | Reduced |
| Colonial Trust Co | 2,896 | $567.6K | 0.08% | −425−12.8% | Reduced |
| Balyasny Asset Management LLC | 2,898 | $568.0K | 0.00% | +1,203+71.0% | Added |
| Horizon Kinetics Asset Management LLC | 2,900 | $568.3K | 0.01% | −100−3.3% | Reduced |
| Mountain Pacific Investment Advisers Inc | 2,900 | $568.3K | 0.10% | 00.0% | Unchanged |
| Kentucky Retirement Systems Insurance Trust Fund | 2,933 | $574.8K | 0.04% | 00.0% | Unchanged |
| Securian Asset Management, Inc | 2,963 | $580.7K | 0.02% | 00.0% | Unchanged |
| Focused Alpha, LLC | 2,965 | $581.1K | 0.18% | +213+7.7% | Added |
| First Citizens Bank & Trust Co | 2,975 | $583.0K | 0.01% | −728−19.7% | Reduced |
| Aaron Wealth Advisors | 2,995 | $587.0K | 0.03% | −4,045−57.5% | Reduced |
| First Eagle Investment Management, LLC | 3,000 | $587.9K | 0.00% | −935−23.8% | Reduced |
| Capital Investment Advisors, LLC | 3,012 | $590.4K | 0.01% | +16+0.5% | Added |
| GF Fund Management Co. Ltd. | 3,016 | $591.1K | 0.01% | 00.0% | Unchanged |
| Red Door Wealth Management, LLC | 3,020 | $591.9K | 0.06% | −7−0.2% | Reduced |
| Hunter Associates Investment Management LLC | 3,022 | $592.0K | 0.08% | 00.0% | Unchanged |
| MUFG Securities Americas Inc. | 3,044 | $596.6K | 0.04% | +47+1.6% | Added |
| Ballentine Partners, LLC | 3,059 | $599.5K | 0.01% | −760−19.9% | Reduced |