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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
Integrity Alliance, LLC.7,993$1.69M0.05%+69+0.9%Added
Bokf, NA8,111$1.72M0.02%+361+4.7%Added
Jane Street Group, LLC8,126$1.72M0.00%+1,697+26.4%Added
Vident Advisory, LLC8,252$1.75M0.01%+88+1.1%Added
Arjuna Capital8,298$1.76M0.40%−31−0.4%Reduced
Farther Finance Advisors, LLC8,362$1.77M0.01%+5,824+229.5%Added
Fort Washington Investment Advisors Inc8,371$1.77M0.01%−91−1.1%Reduced
Federation des caisses Desjardins du Quebec8,422$1.79M0.01%+1,453+20.8%Added
Gulf International Bank (UK) Ltd8,445$1.79M0.04%−78−0.9%Reduced
Parsons Capital Management Inc8,485$1.80M0.08%+900+11.9%Added
Everence Capital Management Inc8,530$1.81M0.10%00.0%Unchanged
Northwest & Ethical Investments L.P.8,571$1.82M0.04%−6,790−44.2%Reduced
Crossmark Global Holdings, Inc.8,597$1.82M0.02%+93+1.1%Added
Mizuho Securities USA LLC8,666$1.84M0.03%+2,016+30.3%Added
Private Capital Management, LLC8,700$1.84M0.17%00.0%Unchanged
Teachers Retirement System of the State of Kentucky8,736$1.85M0.01%00.0%Unchanged
American National Bank8,773$1.86M0.16%−169−1.9%Reduced
Ameritas Investment Partners, Inc.8,951$1.90M0.05%−21−0.2%Reduced
Principal Securities, Inc.9,058$1.92M0.02%+679+8.1%Added
First National Advisers, LLC9,091$1.93M0.27%−4,550−33.4%Reduced
Thoroughbred Financial Services, LLC9,212$1.95M0.09%+10.0%Added
Somerset Trust Co9,282$1.97M0.56%+44+0.5%Added
Ashton Thomas Private Wealth, LLC9,353$1.98M0.04%−17−0.2%Reduced
Naples Global Advisors, LLC9,370$1.99M0.12%+45+0.5%Added
AlphaCore Capital LLC9,371$1.99M0.04%+2,702+40.5%Added
Brinker Capital Investments, LLC9,417$2.00M0.02%−335−3.4%Reduced
We Are One Seven, LLC9,466$2.01M0.03%−224−2.3%Reduced
Laird Norton Trust Company, LLC9,492$2.01M0.04%+1,878+24.7%Added
Macquarie Group Ltd9,590$2.03M0.01%−4,580−32.3%Reduced
Park Avenue Securities LLC9,611$2.04M0.01%+404+4.4%Added
O'Shaughnessy Asset Management, LLC9,669$2.05M0.01%+257+2.7%Added
TriaGen Wealth Management LLC9,670$2.05M0.51%−127−1.3%Reduced
Dynasty Wealth Management, LLC9,786$2.07M0.02%−289−2.9%Reduced
Great Lakes Retirement, Inc.9,809$2.08M0.18%+243+2.5%Added
UniSuper Management Pty Ltd10,173$2.16M0.01%−2,713−21.1%Reduced
Ilmarinen Mutual Pension Insurance Co10,200$2.16M0.01%00.0%Unchanged
B. Metzler seel. Sohn & Co. AG10,247$2.17M0.02%+321+3.2%Added
Jupiter Topco LLC10,393$2.20M0.00%+10,393New
Assetmark, Inc10,418$2.21M0.00%−140−1.3%Reduced
Peapack Gladstone Financial Corp10,620$2.25M0.03%−325−3.0%Reduced
Sanibel Captiva Trust Company, Inc.10,617$2.25M0.06%+4,131+63.7%Added
Empowered Funds, LLC10,624$2.25M0.01%+1,010+10.5%Added
Massar Capital Management, LP10,637$2.25M0.77%+10,637New
Danica Pension, Livsforsikringsaktieselskab10,653$2.26M0.04%+2,331+28.0%Added
Sit Investment Associates Inc10,680$2.26M0.04%−2,965−21.7%Reduced
Permanent Capital Management, LP10,706$2.27M0.30%+6,760+171.3%Added
State of Alaska, Department of Revenue10,847$2.30M0.02%−40−0.4%Reduced
Weatherly Asset Management L. P.11,047$2.34M0.17%−900−7.5%Reduced
Zevenbergen Capital Investments LLC11,315$2.40M0.05%+240+2.2%Added
Roberts Glore & Co Inc11,349$2.41M0.59%−53−0.5%Reduced
Kavar Capital Partners Group, LLC11,415$2.42M0.30%−943−7.6%Reduced
Millennium Management LLC11,434$2.42M0.00%−38,732−77.2%Reduced
Mutual of America Capital Management LLC11,443$2.43M0.02%−290−2.5%Reduced
VCI Wealth Management LLC11,636$2.47M0.62%+2,974+34.3%Added
OP Asset Management Ltd11,781$2.50M0.03%+581+5.2%Added
ICW Investment Advisors LLC11,828$2.51M0.88%−12−0.1%Reduced
Boston Private Wealth LLC11,830$2.51M0.16%−1,039−8.1%Reduced
Integrated Wealth Concepts LLC11,961$2.54M0.02%+589+5.2%Added
Kinneret Advisory, LLC11,984$2.54M0.21%00.0%Unchanged
IFP Advisors, Inc12,005$2.54M0.05%−467−3.7%Reduced
HB Wealth Management, LLC12,123$2.57M0.01%+89+0.7%Added
Rafferty Asset Management, LLC12,181$2.58M0.01%+3,683+43.3%Added
Blueshift Asset Management, LLC12,228$2.59M0.60%+10,647+673.4%Added
BankPlus Trust Department12,236$2.59M0.61%+431+3.7%Added
Dean Capital Management12,476$2.64M0.96%00.0%Unchanged
GWM Advisors LLC12,508$2.65M0.01%+550+4.6%Added
Atria Investments LLC12,532$2.66M0.03%+1,010+8.8%Added
Linden Thomas Advisory Services, LLC12,539$2.66M0.21%+329+2.7%Added
Pinnacle Financial Partners, Inc.12,687$2.69M0.02%+5,943+88.1%Added
Pinnacle Associates Ltd12,733$2.70M0.03%−92−0.7%Reduced
Johnson Investment Counsel Inc12,820$2.72M0.02%−3,400−21.0%Reduced
Sandler Capital Management12,889$2.73M1.61%−2,066−13.8%Reduced
Catalyst Capital Advisors LLC12,900$2.73M0.05%−525−3.9%Reduced
Acumen Wealth Advisors, LLC12,998$2.75M0.58%+494+4.0%Added
Cozad Asset Management Inc13,024$2.76M0.18%+1,495+13.0%Added
Caldwell Trust Co13,165$2.79M0.23%+276+2.1%Added
Elo Mutual Pension Insurance Co13,230$2.80M0.04%+13,230New
Narwhal Capital Management13,348$2.83M0.20%+13,348New
Farrow Financial Inc.13,420$2.84M1.52%+109+0.8%Added
Bank of Nova Scotia13,561$2.87M0.00%−4,067−23.1%Reduced
Oregon Public Employees Retirement Fund13,603$2.88M0.03%+1,040+8.3%Added
Coldstream Capital Management Inc13,668$2.90M0.04%−280−2.0%Reduced
M&T Bank Corp13,782$2.92M0.01%−406−2.9%Reduced
Allianz Asset Management GmbH13,813$2.93M0.00%−23,177−62.7%Reduced
PensionDanmark Pensionsforsikringsaktieselskab14,000$2.97M0.02%+1,000+7.7%Added
Marion Wealth Management14,390$3.05M0.62%+447+3.2%Added
Stablepoint Partners, LLC14,652$3.11M0.43%+26+0.2%Added
Horizon Investments, LLC14,732$3.11M0.03%+419+2.9%Added
Colonial Trust Advisors14,691$3.11M0.22%−818−5.3%Reduced
Lowe Brockenbrough & Co Inc14,703$3.12M0.14%−84−0.6%Reduced
TKG Advisors, LLC14,800$3.14M1.09%+441+3.1%Added
Wealth Enhancement Advisory Services, LLC16,842$3.15M0.01%+2,663+18.8%Added
Nissay Asset Management Corp14,901$3.16M0.01%+323+2.2%Added
Allstate Corp15,030$3.19M0.03%+248+1.7%Added
Yousif Capital Management, LLC15,051$3.19M0.04%−3,447−18.6%Reduced
Summit Trail Advisors, LLC15,051$3.19M0.04%−300−2.0%Reduced
G&S Capital LLC15,108$3.20M0.93%−184−1.2%Reduced
Generali Asset Management SPA SGR15,146$3.21M0.06%−6,932−31.4%Reduced
Thrivent Financial for Lutherans15,295$3.24M0.01%−855−5.3%Reduced
Susquehanna International Group, LLP15,320$3.25M0.00%−3,199−17.3%Reduced