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 |
|---|---|---|---|---|---|
| B. Metzler seel. Sohn & Co. AG | 9,926 | $1.95M | 0.02% | +1,890+23.5% | Added |
| Alpine Woods Capital Investors, LLC | 9,979 | $1.96M | 0.47% | −9,423−48.6% | Reduced |
| Dynasty Wealth Management, LLC | 10,075 | $1.97M | 0.02% | −84−0.8% | Reduced |
| Ilmarinen Mutual Pension Insurance Co | 10,200 | $2.00M | 0.02% | +10,200 | New |
| Janus Henderson Group PLC | 10,393 | $2.04M | 0.00% | −3,546−25.4% | Reduced |
| Assetmark, Inc | 10,558 | $2.07M | 0.00% | +579+5.8% | Added |
| Bleakley Financial Group, LLC | 10,559 | $2.07M | 0.03% | +10,559 | New |
| HM Payson & Co | 10,571 | $2.07M | 0.03% | −680−6.0% | Reduced |
| Primoris Wealth Advisors, LLC | 10,750 | $2.11M | 1.48% | −1,750−14.0% | Reduced |
| State of Alaska, Department of Revenue | 10,887 | $2.13M | 0.02% | −150−1.4% | Reduced |
| Public Employees Retirement Association of Colorado | 10,891 | $2.13M | 0.01% | 00.0% | Unchanged |
| Peapack Gladstone Financial Corp | 10,945 | $2.15M | 0.03% | −70−0.6% | Reduced |
| iA Global Asset Management Inc. | 10,997 | $2.15M | 0.03% | −454−4.0% | Reduced |
| Assenagon Asset Management S.A. | 11,071 | $2.17M | 0.00% | −13,878−55.6% | Reduced |
| Zevenbergen Capital Investments LLC | 11,075 | $2.17M | 0.06% | +655+6.3% | Added |
| OP Asset Management Ltd | 11,200 | $2.19M | 0.02% | −942−7.8% | Reduced |
| Integrated Wealth Concepts LLC | 11,372 | $2.23M | 0.02% | +9,301+449.1% | Added |
| Roberts Glore & Co Inc | 11,402 | $2.23M | 0.61% | −291−2.5% | Reduced |
| Arrowstreet Capital, Limited Partnership | 11,468 | $2.25M | 0.00% | +11,468 | New |
| Zurich Insurance Group Ltd | 11,500 | $2.25M | 0.02% | 00.0% | Unchanged |
| Atria Investments LLC | 11,522 | $2.26M | 0.03% | −409−3.4% | Reduced |
| Cozad Asset Management Inc | 11,529 | $2.26M | 0.18% | +1,022+9.7% | Added |
| Omers Administration Corp | 11,640 | $2.28M | 0.01% | +10,073+642.8% | Added |
| Advisors Asset Management, Inc. | 11,722 | $2.30M | 0.04% | −374−3.1% | Reduced |
| Mutual of America Capital Management LLC | 11,733 | $2.30M | 0.03% | −244−2.0% | Reduced |
| Patton Fund Management, Inc. | 11,773 | $2.31M | 0.39% | −20,266−63.3% | Reduced |
| BankPlus Trust Department | 11,805 | $2.31M | 0.62% | −1,398−10.6% | Reduced |
| ICW Investment Advisors LLC | 11,840 | $2.32M | 0.84% | +258+2.2% | Added |
| Weatherly Asset Management L. P. | 11,947 | $2.34M | 0.19% | −360−2.9% | Reduced |
| GWM Advisors LLC | 11,958 | $2.34M | 0.01% | −1,552−11.5% | Reduced |
| Kinneret Advisory, LLC | 11,984 | $2.35M | 0.22% | −531−4.2% | Reduced |
| HB Wealth Management, LLC | 12,034 | $2.36M | 0.02% | +742+6.6% | Added |
| Linden Thomas Advisory Services, LLC | 12,210 | $2.39M | 0.23% | +257+2.2% | Added |
| Kavar Capital Partners Group, LLC | 12,358 | $2.42M | 0.30% | −345−2.7% | Reduced |
| IFP Advisors, Inc | 12,472 | $2.44M | 0.05% | −3,792−23.3% | Reduced |
| Dean Capital Management | 12,476 | $2.45M | 1.01% | −20.0% | Reduced |
| Acumen Wealth Advisors, LLC | 12,504 | $2.45M | 0.66% | +1,182+10.4% | Added |
| Oregon Public Employees Retirement Fund | 12,563 | $2.46M | 0.03% | −200−1.6% | Reduced |
| Diversified Management Inc | 12,609 | $2.47M | 0.42% | +10,013+385.7% | Added |
| Wealth Enhancement Advisory Services, LLC | 14,179 | $2.51M | 0.01% | −3,060−17.8% | Reduced |
| Pinnacle Associates Ltd | 12,825 | $2.51M | 0.03% | +23+0.2% | Added |
| Boston Private Wealth LLC | 12,869 | $2.52M | 0.17% | −4,479−25.8% | Reduced |
| UniSuper Management Pty Ltd | 12,886 | $2.53M | 0.02% | −945−6.8% | Reduced |
| Caldwell Trust Co | 12,889 | $2.53M | 0.23% | +2,010+18.5% | Added |
| PensionDanmark Pensionsforsikringsaktieselskab | 13,000 | $2.55M | 0.02% | −440−3.3% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 13,146 | $2.58M | 0.05% | −16,759−56.0% | Reduced |
| Farrow Financial Inc. | 13,311 | $2.61M | 1.48% | −358−2.6% | Reduced |
| Catalyst Capital Advisors LLC | 13,425 | $2.63M | 0.05% | −600−4.3% | Reduced |
| First National Advisers, LLC | 13,641 | $2.67M | 0.39% | −187−1.4% | Reduced |
| Sit Investment Associates Inc | 13,645 | $2.67M | 0.05% | −4,970−26.7% | Reduced |
| CWM, LLC | 13,772 | $2.70M | 0.01% | −5,178−27.3% | Reduced |
| Marion Wealth Management | 13,943 | $2.73M | 0.61% | +443+3.3% | Added |
| Coldstream Capital Management Inc | 13,948 | $2.73M | 0.03% | −3,019−17.8% | Reduced |
| Munich Reinsurance Co Stock Corp in Munich | 14,136 | $2.77M | 0.07% | +14,136 | New |
| Macquarie Group Ltd | 14,170 | $2.77M | 0.02% | −1,517−9.7% | Reduced |
| M&T Bank Corp | 14,188 | $2.78M | 0.01% | −786−5.2% | Reduced |
| Horizon Investments, LLC | 14,313 | $2.79M | 0.03% | −664−4.4% | Reduced |
| TKG Advisors, LLC | 14,359 | $2.81M | 1.16% | −327−2.2% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 14,494 | $2.84M | 0.01% | +1,028+7.6% | Added |
| Bank Ozk | 14,572 | $2.86M | 1.01% | +214+1.5% | Added |
| Nissay Asset Management Corp | 14,578 | $2.86M | 0.02% | +138+1.0% | Added |
| Stablepoint Partners, LLC | 14,626 | $2.87M | 0.43% | −139−0.9% | Reduced |
| Allstate Corp | 14,782 | $2.90M | 0.03% | +6,094+70.1% | Added |
| Lowe Brockenbrough & Co Inc | 14,787 | $2.90M | 0.14% | −455−3.0% | Reduced |
| Sandler Capital Management | 14,955 | $2.93M | 1.99% | +14,955 | New |
| MML Investors Services, LLC | 14,964 | $2.93M | 0.01% | +6,145+69.7% | Added |
| NEOS Investment Management LLC | 15,111 | $2.96M | 0.01% | +12,749+539.8% | Added |
| G&S Capital LLC | 15,292 | $3.00M | 1.05% | +179+1.2% | Added |
| British Columbia Investment Management Corp | 15,333 | $3.00M | 0.02% | −4,447−22.5% | Reduced |
| Summit Trail Advisors, LLC | 15,351 | $3.01M | 0.04% | +3,714+31.9% | Added |
| ING Groep NV | 15,356 | $3.01M | 0.02% | −1,753−10.2% | Reduced |
| Northwest & Ethical Investments L.P. | 15,361 | $3.01M | 0.07% | +8,812+134.6% | Added |
| Colonial Trust Advisors | 15,509 | $3.04M | 0.24% | −217−1.4% | Reduced |
| Sumitomo Mitsui DS Asset Management Company, Ltd | 16,050 | $3.15M | 0.03% | −59−0.4% | Reduced |
| Thrivent Financial for Lutherans | 16,150 | $3.17M | 0.01% | −1,788−10.0% | Reduced |
| Johnson Investment Counsel Inc | 16,220 | $3.18M | 0.03% | +93+0.6% | Added |
| Baird Financial Group, Inc. | 16,328 | $3.20M | 0.00% | −62−0.4% | Reduced |
| New York Life Investment Management LLC | 16,438 | $3.22M | 0.03% | +260+1.6% | Added |
| Rakuten Investment Management, Inc. | 16,387 | $3.23M | 0.01% | +1,729+11.8% | Added |
| Nisa Investment Advisors, LLC | 16,547 | $3.24M | 0.01% | −1,750−9.6% | Reduced |
| Oak Associates, Ltd | 16,592 | $3.25M | 0.22% | −850−4.9% | Reduced |
| Advisor Group Holdings, Inc. | 16,666 | $3.27M | 0.00% | −2,943−15.0% | Reduced |
| Allspring Global Investments Holdings, LLC | 16,645 | $3.29M | 0.01% | +333+2.0% | Added |
| Police & Firemen's Retirement System of New Jersey | 17,129 | $3.36M | 0.03% | +83+0.5% | Added |
| Bahl & Gaynor Inc | 17,141 | $3.36M | 0.02% | −170,147−90.8% | Reduced |
| JustInvest LLC | 17,206 | $3.37M | 0.03% | +645+3.9% | Added |
| Ensign Peak Advisors, Inc | 17,397 | $3.41M | 0.01% | +1,189+7.3% | Added |
| Manning & Napier Advisors LLC | 17,296 | $3.41M | 0.05% | −1,167−6.3% | Reduced |
| Ostrum Asset Management | 17,402 | $3.41M | 0.19% | −14,769−45.9% | Reduced |
| Public Sector Pension Investment Board | 17,623 | $3.45M | 0.01% | +3,125+21.6% | Added |
| Bank of Nova Scotia | 17,628 | $3.45M | 0.01% | −48,834−73.5% | Reduced |
| Agf Management Ltd | 17,667 | $3.46M | 0.02% | +1,517+9.4% | Added |
| Wasatch Advisors Inc | 17,702 | $3.47M | 0.02% | 00.0% | Unchanged |
| Delta Capital Management LLC | 17,810 | $3.49M | 1.92% | +100+0.6% | Added |
| Kestra Advisory Services, LLC | 17,886 | $3.51M | 0.01% | 00.0% | Unchanged |
| Foster & Motley Inc | 17,916 | $3.51M | 0.18% | −1,631−8.3% | Reduced |
| Soviero Asset Management, LP | 18,000 | $3.53M | 1.98% | +18,000 | New |
| Utah Retirement Systems | 18,095 | $3.55M | 0.04% | −232−1.3% | Reduced |
| Tudor Investment Corp Et Al | 18,225 | $3.57M | 0.02% | +15,157+494.0% | Added |
| Charter Trust Co | 18,458 | $3.62M | 0.21% | +950+5.4% | Added |