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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 2025

Institutional positions in Quest Diagnostics Inc as of Jun 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
991
+37 vs. Q1 2025
Shares held
107.4M
+4.37M (+4.2%) vs. Q1 2025
Total value
$19.3B
+$1.85B (+10.6%) vs. Q1 2025
New holders
120
366 more added
Sold out
83
327 more reduced

15 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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.

Institutional holdersQ2 2025: 991 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 2025: $19.3B
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 2025

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q1 2025.

Institutions holding DGX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Kames Capital plc118,391$21.2M0.27%−24,222−17.0%Reduced
TD Asset Management Inc121,014$21.7M0.02%+18,484+18.0%Added
Virginia Retirement Systems Et Al123,876$22.3M0.15%−12,172−8.9%Reduced
Natixis Advisors, L.P.129,082$23.2M0.04%+16,850+15.0%Added
Braun Stacey Associates Inc135,952$24.4M0.88%+135,952New
Willis Investment Counsel136,900$24.6M1.44%+16,800+14.0%Added
Achmea Investment Management B.V.137,029$24.6M0.32%+563+0.4%Added
Franklin Resources Inc140,129$25.2M0.01%+76,031+118.6%Added
Woodline Partners LP148,473$26.7M0.14%−232,227−61.0%Reduced
Integral Health Asset Management, LLC150,000$26.9M2.52%+150,000New
Coho Partners, Ltd.154,483$27.7M2.07%−27,780−15.2%Reduced
Millennium Management LLC155,196$27.9M0.02%+139,920+915.9%Added
Mackenzie Financial Corp156,467$28.1M0.04%+143,935+1,148.5%Added
Cookson Peirce & Co Inc169,810$30.5M1.34%−2,842−1.6%Reduced
Wedge Capital Management L L P174,290$31.3M0.56%−18,080−9.4%Reduced
Copeland Capital Management, LLC176,264$31.7M0.65%−19,998−10.2%Reduced
8 Knots Management, LLC176,538$31.7M4.54%+52,983+42.9%Added
California State Teachers Retirement System188,951$33.9M0.04%+18,170+10.6%Added
Skandinaviska Enskilda Banken AB (publ)189,159$34.0M0.15%+56,082+42.1%Added
APG Asset Management N.V.224,868$34.4M0.10%+45,034+25.0%Added
Universal- Beteiligungs- und Servicegesellschaft mbH198,457$35.6M0.06%−21,269−9.7%Reduced
Bank of Montreal201,962$36.3M0.02%−10,296−4.9%Reduced
Marshall Wace, LLP205,083$36.8M0.04%−278,204−57.6%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.216,103$38.8M0.03%+18,268+9.2%Added
Manufacturers Life Insurance Company, The220,085$39.5M0.04%−5,119−2.3%Reduced
HSBC Holdings PLC222,265$39.9M0.03%−7,444−3.2%Reduced
Artemis Investment Management LLP223,448$40.1M0.52%+223,448New
Nordea Investment Management AB227,412$40.5M0.04%−1,029,219−81.9%Reduced
National Pension Service227,180$40.8M0.04%−198−0.1%Reduced
BNP Paribas Arbitrage, SA247,232$44.4M0.03%−120,098−32.7%Reduced
Candriam Luxembourg S.C.A.265,771$47.7M0.28%−12,885−4.6%Reduced
Sumitomo Mitsui Trust Holdings, Inc.275,103$49.4M0.03%−3,077−1.1%Reduced
Rhumbline Advisers279,728$50.2M0.04%−7,490−2.6%Reduced
Bahl & Gaynor Inc281,039$50.5M0.26%−33,818−10.7%Reduced
Advisors Capital Management, LLC283,386$50.9M0.70%+32,131+12.8%Added
Macquarie Group Ltd291,886$52.4M0.06%−15,983−5.2%Reduced
Citigroup Inc293,688$52.8M0.04%+153,200+109.0%Added
BNP PARIBAS ASSET MANAGEMENT Holding S.A.293,939$52.8M0.13%+217,187+283.0%Added
Allianz Asset Management GmbH304,361$54.7M0.07%−84,694−21.8%Reduced
Pictet Asset Management Holding SA319,459$57.4M0.06%+57,876+22.1%Added
Swiss National Bank337,900$60.7M0.04%+23,100+7.3%Added
Nuveen, LLC339,227$60.9M0.02%+10,697+3.3%Added
First Trust Advisors LP351,593$63.2M0.05%−114,868−24.6%Reduced
Schroder Investment Management Group353,779$63.5M0.05%+122,646+53.1%Added
Barclays PLC356,401$64.0M0.03%−31,098−8.0%Reduced
Great West Life Assurance Co386,138$69.4M0.11%+30,421+8.6%Added
Envestnet Asset Management Inc394,019$70.8M0.02%+47,382+13.7%Added
Voya Investment Management LLC403,613$72.5M0.07%+369,855+1,095.6%Added
California Public Employees Retirement System406,276$73.0M0.05%−85,008−17.3%Reduced
Kempen Capital Management N.V.408,200$73.3M0.70%−23,100−5.4%Reduced
Qube Research & Technologies Ltd417,533$75.0M0.10%−19,813−4.5%Reduced
Amundi443,562$78.3M0.03%−136,791−23.6%Reduced
Crawford Investment Counsel Inc484,959$87.1M1.52%−14,221−2.8%Reduced
RTW Investments, LP500,000$89.8M1.28%+401,003+405.1%Added
Raymond James Financial Inc510,627$91.7M0.03%−38,615−7.0%Reduced
Deutsche Bank AG537,758$96.6M0.04%−54,769−9.2%Reduced
Principal Financial Group Inc561,571$100.9M0.05%−6,785−1.2%Reduced
Goldman Sachs Group Inc645,734$116.0M0.02%−100,303−13.4%Reduced
Neuberger Berman Group LLC716,324$128.6M0.10%+79,801+12.5%Added
Legal & General Group Plc733,605$131.8M0.03%−25,191−3.3%Reduced
DekaBank Deutsche Girozentrale748,680$132.8M0.24%−17,258−2.3%Reduced
Charles Schwab Investment Management Inc746,559$134.1M0.02%+5,721+0.8%Added
American Century Companies Inc794,289$142.7M0.08%−417,622−34.5%Reduced
Bank of New York Mellon Corp821,598$147.6M0.03%−47,751−5.5%Reduced
Ameriprise Financial Inc841,621$151.2M0.04%−119,533−12.4%Reduced
Squarepoint Ops LLC843,291$151.5M0.33%+688,297+444.1%Added
Royal Bank of Canada888,128$159.5M0.03%+392,474+79.2%Added
UBS Group AG978,481$175.8M0.04%+36,769+3.9%Added
M&G Plc1,072,721$193.1M1.06%+771,824+256.5%Added
Northern Trust Corp1,178,397$211.7M0.03%+6,593+0.6%Added
Fiduciary Management Inc1,185,318$212.9M2.04%−66,084−5.3%Reduced
UBS Asset Management Americas Inc1,216,501$218.5M0.04%+203,471+20.1%Added
FMR LLC1,235,394$221.9M0.01%+254,044+25.9%Added
Alliancebernstein L.P.1,241,855$223.1M0.07%+64,283+5.5%Added
Norges Bank1,325,624$238.1M0.03%+36,212+2.8%Added
Davis Selected Advisers1,354,420$243.3M1.30%−1,033,882−43.3%Reduced
Wellington Management Group LLP1,599,216$287.3M0.05%−159,049−9.0%Reduced
Bank of America Corp1,599,602$287.3M0.02%+426,399+36.3%Added
Invesco Ltd.1,658,351$297.9M0.05%+381,619+29.9%Added
Grantham, Mayo, Van Otterloo & Co. LLC1,747,952$314.0M0.95%−258,593−12.9%Reduced
Wells Fargo & Company1,836,447$329.9M0.07%+64,117+3.6%Added
Dimensional Fund Advisors LP1,901,355$341.5M0.08%−11,205−0.6%Reduced
Morgan Stanley2,145,104$385.3M0.03%+359,986+20.2%Added
Victory Capital Management Inc2,809,226$504.6M0.33%−324,301−10.3%Reduced
Geode Capital Management, LLC2,982,415$533.6M0.04%+208,261+7.5%Added
Boston Partners3,039,848$545.3M0.61%+744,102+32.4%Added
JPMorgan Chase & Co4,331,660$778.1M0.05%+561,722+14.9%Added
State Street Corp5,184,999$931.4M0.03%+8,140+0.2%Added
Price T Rowe Associates Inc7,194,697$1.29B0.15%+1,210,459+20.2%Added
BlackRock, Inc.10,312,975$1.85B0.04%+215,665+2.1%Added
Vanguard Group Inc14,233,576$2.56B0.04%+296,860+2.1%Added
Balyasny Asset Management LLC0$00.00%−207,256−100.0%Sold out
Massachusetts Financial Services Co0$00.00%−158,749−100.0%Sold out
Causeway Capital Management LLC0$00.00%−120,400−100.0%Sold out
Financial Counselors Inc0$00.00%−99,631−100.0%Sold out
Isthmus Partners, LLC0$00.00%−89,874−100.0%Sold out
Adage Capital Partners GP, L.L.C.0$00.00%−72,624−100.0%Sold out
AMF Pensionsforsakring AB0$00.00%−45,105−100.0%Sold out
Trexquant Investment LP0$00.00%−37,916−100.0%Sold out
Atom Investors LP0$00.00%−33,374−100.0%Sold out