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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
G&S Capital LLC7,024$1.26M0.50%+7,024New
We Are One Seven, LLC7,043$1.27M0.04%+783+12.5%Added
Railway Pension Investments Ltd7,100$1.28M0.02%00.0%Unchanged
Kentucky Retirement Systems7,111$1.28M0.04%−466−6.2%Reduced
Brown Advisory Inc7,127$1.28M0.00%+46+0.6%Added
Custom Index Systems, LLC7,206$1.29M0.62%−127−1.7%Reduced
Game Plan Financial Advisors, LLC7,224$1.30M0.57%−2,298−24.1%Reduced
Change Path, LLC7,307$1.31M0.03%+898+14.0%Added
Peak Retirement Planning, Inc.7,336$1.32M0.53%+1,485+25.4%Added
Sterling Capital Management LLC7,420$1.33M0.02%+1,248+20.2%Added
Agp Franklin, LLC7,471$1.34M0.71%+164+2.2%Added
Needham Investment Management LLC7,500$1.35M0.11%−250−3.2%Reduced
Miller Investment Management, LP7,586$1.36M0.14%00.0%Unchanged
Country Club Bank7,692$1.37M0.09%−445−5.5%Reduced
Great Lakes Retirement, Inc.7,707$1.38M0.16%+781+11.3%Added
Mizuho Securities USA LLC7,711$1.39M0.03%+7,711New
Hilltop National Bank7,744$1.39M0.36%+7,744New
Jane Street Group, LLC7,811$1.40M0.00%−78,083−90.9%Reduced
CX Institutional7,863$1.41M0.05%−1,636−17.2%Reduced
MML Investors Services, LLC7,935$1.43M0.00%+1,844+30.3%Added
Parsons Capital Management Inc7,973$1.43M0.09%00.0%Unchanged
Persistent Asset Partners Ltd8,007$1.44M1.26%+1,168+17.1%Added
Wambolt & Associates, LLC8,069$1.45M0.49%−451−5.3%Reduced
Simplify Asset Management Inc.8,161$1.47M0.09%−12,510−60.5%Reduced
ASR Vermogensbeheer N.V.8,281$1.49M0.02%−43−0.5%Reduced
B. Metzler seel. Sohn & Co. AG8,294$1.49M0.01%+594+7.7%Added
Northwestern Mutual Wealth Management Co8,313$1.49M0.00%+334+4.2%Added
Jain Global LLC8,316$1.49M0.02%+6,220+296.8%Added
Private Capital Management, LLC8,400$1.51M0.15%−2,000−19.2%Reduced
Everence Capital Management Inc8,530$1.53M0.10%00.0%Unchanged
Public Sector Pension Investment Board8,607$1.55M0.01%−6,515−43.1%Reduced
Arjuna Capital8,644$1.55M0.41%−687−7.4%Reduced
Teewinot Capital Advisers, L.L.C.8,674$1.56M0.13%−3,947−31.3%Reduced
Teachers Retirement System of the State of Kentucky8,736$1.57M0.01%+119+1.4%Added
Assetmark, Inc8,787$1.58M0.00%+1,975+29.0%Added
Nebula Research & Development LLC8,853$1.59M0.14%+8,853New
American National Bank8,912$1.60M0.16%−650−6.8%Reduced
First National Advisers, LLC8,980$1.61M0.24%+8,980New
Roundview Capital LLC9,184$1.65M0.11%−14−0.2%Reduced
Somerset Trust Co9,232$1.66M0.54%−128−1.4%Reduced
Banque Cantonale Vaudoise9,237$1.66M0.07%+383+4.3%Added
Vestmark Advisory Solutions, Inc.9,290$1.67M0.02%+9,290New
Natixis9,302$1.67M0.01%−770−7.6%Reduced
Thoroughbred Financial Services, LLC9,318$1.67M0.12%−3,072−24.8%Reduced
Naples Global Advisors, LLC9,361$1.68M0.14%+55+0.6%Added
Avanza Fonder AB9,369$1.68M0.05%+206+2.2%Added
Avantax Advisory Services, Inc.9,426$1.69M0.01%+436+4.8%Added
Ascent Group, LLC9,498$1.71M0.07%+213+2.3%Added
Fred Alger Management, LLC9,560$1.72M0.01%−9,818−50.7%Reduced
Fifth Third Bancorp9,645$1.73M0.01%−198−2.0%Reduced
Oregon Public Employees Retirement Fund9,663$1.74M0.03%+100+1.0%Added
Madison Asset Management, LLC9,842$1.77M0.02%−180−1.8%Reduced
TriaGen Wealth Management LLC10,119$1.82M0.55%−484−4.6%Reduced
Ameritas Investment Partners, Inc.10,134$1.82M0.06%−371−3.5%Reduced
Atria Investments LLC10,338$1.86M0.02%+2,599+33.6%Added
Easterly Investment Partners LLC10,379$1.86M0.13%+10,379New
Allspring Global Investments Holdings, LLC10,478$1.88M0.00%+1,362+14.9%Added
Portfolio Design Labs, LLC10,506$1.89M0.37%+318+3.1%Added
Cambridge Investment Research Advisors, Inc.10,515$1.89M0.01%+1,607+18.0%Added
Twin Tree Management, LP10,551$1.90M0.05%+10,551New
Generali Asset Management SPA SGR10,659$1.91M0.04%−15,958−60.0%Reduced
Harbor Capital Advisors, Inc.10,789$1.94M0.08%+69+0.6%Added
Fort Washington Investment Advisors Inc10,844$1.95M0.01%+34+0.3%Added
Public Employees Retirement Association of Colorado10,891$1.96M0.01%−137−1.2%Reduced
HB Wealth Management, LLC10,913$1.96M0.02%−234−2.1%Reduced
ICW Investment Advisors LLC11,081$1.99M0.79%−24−0.2%Reduced
Peapack Gladstone Financial Corp11,144$2.00M0.03%+9+0.1%Added
Nisa Investment Advisors, LLC11,158$2.00M0.01%+321+3.0%Added
HM Payson & Co11,251$2.02M0.03%00.0%Unchanged
Zurich Insurance Group Ltd11,500$2.07M0.02%00.0%Unchanged
Linden Thomas Advisory Services, LLC11,602$2.08M0.23%+89+0.8%Added
OP Asset Management Ltd11,768$2.11M0.03%−327−2.7%Reduced
Rafferty Asset Management, LLC11,803$2.12M0.01%+1,524+14.8%Added
Horizon Investments, LLC11,882$2.12M0.03%+10,277+640.3%Added
Marion Wealth Management12,084$2.17M0.54%+12,084New
Dean Capital Management12,096$2.17M0.89%+648+5.7%Added
Roberts Glore & Co Inc12,257$2.20M0.64%−1,462−10.7%Reduced
Pinnacle Associates Ltd12,286$2.21M0.03%−364−2.9%Reduced
BankPlus Trust Department12,289$2.21M0.65%+753+6.5%Added
Janus Henderson Group PLC12,336$2.21M0.00%−9,336−43.1%Reduced
IFP Advisors, Inc12,248$2.22M0.06%−1,194−8.9%Reduced
Canada Post Corp Registered Pension Plan12,435$2.23M0.13%−24,355−66.2%Reduced
Soltis Investment Advisors LLC12,525$2.25M0.18%−10,534−45.7%Reduced
State of Alaska, Department of Revenue12,541$2.25M0.02%−465−3.6%Reduced
Dynamic Technology Lab Private Ltd12,640$2.27M0.31%+12,640New
Kavar Capital Partners Group, LLC12,693$2.28M0.33%−450−3.4%Reduced
Mutual of America Capital Management LLC12,827$2.30M0.02%−110−0.9%Reduced
Kinneret Advisory, LLC12,915$2.32M0.21%−20−0.2%Reduced
GWM Advisors LLC13,125$2.36M0.01%+3,604+37.9%Added
Riverwater Partners LLC13,182$2.37M1.12%−31−0.2%Reduced
J. Safra Sarasin Holding AG13,188$2.37M0.04%+4,252+47.6%Added
Sumitomo Mitsui DS Asset Management Company, Ltd13,230$2.38M0.02%+300+2.3%Added
Wealth Enhancement Advisory Services, LLC13,579$2.40M0.00%−17,246−55.9%Reduced
Bank Ozk13,802$2.48M0.95%+1,571+12.8%Added
Commerce Bank13,934$2.50M0.01%+456+3.4%Added
Keybank National Association13,971$2.51M0.01%+7,054+102.0%Added
Farrow Financial Inc.13,989$2.51M1.52%−202−1.4%Reduced
UniSuper Management Pty Ltd13,995$2.51M0.02%−200−1.4%Reduced
CIBC World Markets Corp14,049$2.52M0.02%+633+4.7%Added
Nissay Asset Management Corp14,267$2.56M0.02%+38+0.3%Added