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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.

Institutional holdersQ2 2026: 1,112 institutions
Q1 2021: 818 institutionsQ2 2021: 816 institutionsQ3 2021: 840 institutionsQ4 2021: 906 institutionsQ1 2022: 852 institutionsQ2 2022: 853 institutionsQ3 2022: 809 institutionsQ4 2022: 881 institutionsQ1 2023: 837 institutionsQ2 2023: 820 institutionsQ3 2023: 797 institutionsQ4 2023: 829 institutionsQ1 2024: 818 institutionsQ2 2024: 839 institutionsQ3 2024: 849 institutionsQ4 2024: 896 institutionsQ1 2025: 969 institutionsQ2 2025: 991 institutionsQ3 2025: 1,006 institutionsQ4 2025: 1,050 institutionsQ1 2026: 1,069 institutionsQ2 2026: 1,112 institutions
Value heldQ2 2026: $22.2B
Q1 2021: $14.8BQ2 2021: $15.0BQ3 2021: $15.9BQ4 2021: $18.0BQ1 2022: $14.4BQ2 2022: $13.8BQ3 2022: $12.6BQ4 2022: $15.5BQ1 2023: $14.2BQ2 2023: $14.0BQ3 2023: $12.0BQ4 2023: $13.5BQ1 2024: $13.2BQ2 2024: $13.3BQ3 2024: $15.2BQ4 2024: $15.0BQ1 2025: $17.5BQ2 2025: $19.3BQ3 2025: $20.0BQ4 2025: $18.4BQ1 2026: $20.1BQ2 2026: $22.2B
Institutions holding DGX and their total value by quarter
QuarterHoldersValue
Q2 20261,112$22.2B
Q1 20261,069$20.1B
Q4 20251,050$18.4B
Q3 20251,006$20.0B
Q2 2025991$19.3B
Q1 2025969$17.5B
Q4 2024896$15.0B
Q3 2024849$15.2B
Q2 2024839$13.3B
Q1 2024818$13.2B
Q4 2023829$13.5B
Q3 2023797$12.0B
Q2 2023820$14.0B
Q1 2023837$14.2B
Q4 2022881$15.5B
Q3 2022809$12.6B
Q2 2022853$13.8B
Q1 2022852$14.4B
Q4 2021906$18.0B
Q3 2021840$15.9B
Q2 2021816$15.0B
Q1 2021818$14.8B

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q1 2026.

Institutions holding DGX in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Halbert Hargrove Global Advisors, LLC2$3650.00%+2New
Raffa Wealth Management, LLC1$2120.00%−6−85.7%Reduced
NorthAvenue LLC1$2120.00%00.0%Unchanged
IMA Wealth, Inc.1$2120.00%00.0%Unchanged
Plante Moran Financial Advisors, LLC1$2120.00%+1New
Maryland Capital Advisors Inc.1$2120.00%+1New
Trifecta Capital Advisors, LLC1$2120.00%+1New
Tidemark, LLC1$2120.00%+1New
Kingdom Financial Group LLC.1$1330.00%00.0%Unchanged
Darwin Advisors, LLC0$1250.00%0New
Evolution Advisers, Inc.1$00.00%+1New
Navigoe, LLC4$00.00%+4New
Olstein Capital Management, L.P.0$00.00%−35,800−100.0%Sold out
Worldquant Millennium Advisors LLC0$00.00%−26,745−100.0%Sold out
Capital Fund Management S.A.0$00.00%−26,563−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−18,225−100.0%Sold out
Soviero Asset Management, LP0$00.00%−18,000−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−13,146−100.0%Sold out
Zurich Insurance Group Ltd0$00.00%−11,500−100.0%Sold out
Arrowstreet Capital, Limited Partnership0$00.00%−11,468−100.0%Sold out
Primoris Wealth Advisors, LLC0$00.00%−10,750−100.0%Sold out
Bleakley Financial Group, LLC0$00.00%−10,559−100.0%Sold out
Highview Capital Management LLC0$00.00%−9,501−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−8,950−100.0%Sold out
Havemeyer Place LP0$00.00%−8,663−100.0%Sold out
Picton Mahoney Asset Management0$00.00%−8,030−100.0%Sold out
AG2R la Mondiale Gestion D'Actifs0$00.00%−7,136−100.0%Sold out
WBI Investments0$00.00%−6,057−100.0%Sold out
Freestone Grove Partners LP0$00.00%−5,690−100.0%Sold out
Integrated Quantitative Investments LLC0$00.00%−5,382−100.0%Sold out
IMC-Chicago, LLC0$00.00%−5,227−100.0%Sold out
Jain Global LLC0$00.00%−4,378−100.0%Sold out
Azzad Asset Management Inc0$00.00%−4,286−100.0%Sold out
Vinva Investment Management Ltd0$00.00%−3,753−100.0%Sold out
Stegent Equity Advisors, Inc.0$00.00%−3,061−100.0%Sold out
Maverick Capital LtdSuperinvestorMaverick Capital0$00.00%−2,756−100.0%Sold out
Ironsides Asset Advisors, LLC0$00.00%−2,366−100.0%Sold out
WealthShield Partners, LLC0$00.00%−2,221−100.0%Sold out
DRW Securities, LLC0$00.00%−2,175−100.0%Sold out
AlphaGrep UK Ltd0$00.00%−2,106−100.0%Sold out
Evoke Wealth, LLC0$00.00%−1,777−100.0%Sold out
Boothbay Fund Management, LLC0$00.00%−1,705−100.0%Sold out
Farringdon Capital, Ltd.0$00.00%−1,583−100.0%Sold out
Tradewinds, LLC.0$00.00%−1,537−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−1,490−100.0%Sold out
Abel Hall, LLC0$00.00%−1,429−100.0%Sold out
Golden State Equity Partners0$00.00%−1,428−100.0%Sold out
Addison Advisors LLC0$00.00%−1,400−100.0%Sold out
David R. Rahn & Associates Inc.0$00.00%−1,298−100.0%Sold out
Mirabella Financial Services LLP0$00.00%−1,262−100.0%Sold out
MOR Wealth Management, LLC0$00.00%−1,244−100.0%Sold out
Willis Johnson & Associates, Inc.0$00.00%−1,208−100.0%Sold out
DV Trading LLC0$00.00%−1,200−100.0%Sold out
Evolve Private Wealth, LLC0$00.00%−1,079−100.0%Sold out
Catalyst Funds Management Pty Ltd0$00.00%−1,065−100.0%Sold out
Group One Trading, L.P.0$00.00%−961−100.0%Sold out
Walleye Trading LLC0$00.00%−549−100.0%Sold out
Root Financial Partners, LLC0$00.00%−432−100.0%Sold out
Tiaa Trust, National Association0$00.00%−287−100.0%Sold out
TopTier Wealth Management, LLC0$00.00%−205−100.0%Sold out
Twin Peaks Wealth Advisors, LLC0$00.00%−134−100.0%Sold out
Merkkuri Wealth Advisors LLC0$00.00%−108−100.0%Sold out
Sachetta, LLC0$00.00%−100−100.0%Sold out
Ballast Advisors LLC0$00.00%−100−100.0%Sold out
Estabrook Capital Management0$00.00%−94−100.0%Sold out
Sound Income Strategies, LLC0$00.00%−77−100.0%Sold out
Kemnay Advisory Services Inc.0$00.00%−44−100.0%Sold out
City Holding Co0$00.00%−38−100.0%Sold out
Scarborough Advisors, LLC0$00.00%−37−100.0%Sold out
Crews Bank & Trust0$00.00%−31−100.0%Sold out
Bank of Jackson Hole Trust0$00.00%−26−100.0%Sold out
MJT & Associates Financial Advisory Group, Inc.0$00.00%−22−100.0%Sold out
Clayton Financial Group LLC0$00.00%−19−100.0%Sold out
Albion Financial Group0$00.00%−11−100.0%Sold out
Vermillion Wealth Management, Inc.0$00.00%−7−100.0%Sold out
Evolution Wealth Management Inc.0$00.00%−7−100.0%Sold out
Capital Analysts, LLC0$00.00%−4−100.0%Sold out
Caitlin John, LLC0$00.00%−3−100.0%Sold out
North Star Investment Management Corp.0$00.00%−3−100.0%Sold out
Synergy Investment Management, LLC0$00.00%−3−100.0%Sold out
Curio Wealth, LLC0$00.00%−2−100.0%Sold out
Lloyd Advisory Services, LLC.0$00.00%−1−100.0%Sold out
Exencial Wealth Advisors, LLC––––Not filed
CWM, LLC––––Not filed
Janus Henderson Group PLC––––Not filed
Millington Securities, LLC––––Not filed
Skopos Labs, Inc.––––Not filed
McIlrath & Eck, LLC––––Not filed
Sunbelt Securities, Inc.––––Not filed
Anfield Capital Management, LLC––––Not filed
USA Financial Portformulas Corp––––Not filed