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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, 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.

Institutional holdersQ1 2026: 1,069 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 heldQ1 2026: $20.1B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Quest Diagnostics Inc; share changes are against Q4 2025.

Institutions holding DGX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Edmond de Rothschild Holding S.A.4,182$819.6K0.01%+1,446+52.9%Added
Independent Advisor Alliance4,128$809.0K0.01%−170−4.0%Reduced
Alamea Verwaltungs GmbH4,108$805.1K0.60%+39+1.0%Added
Saudi Central Bank4,106$804.7K0.02%+4,106New
Wesbanco Bank Inc4,092$802.0K0.02%−118−2.8%Reduced
Sawyer & Company, Inc4,091$801.7K0.31%00.0%Unchanged
Transamerica Financial Advisors, Inc.4,024$788.6K0.07%+3,390+534.7%Added
Lifeworks Advisors, LLC4,020$787.8K0.10%−235−5.5%Reduced
United Capital Financial Advisers, LLC4,008$785.4K0.00%+775+24.0%Added
RWM Asset Management, LLC4,000$783.9K0.09%00.0%Unchanged
Empirical Finance, LLC3,957$775.5K0.04%−8−0.2%Reduced
E. Ohman J:or Asset Management AB3,950$774.1K0.02%−550−12.2%Reduced
Permanent Capital Management, LP3,946$766.3K0.12%+3,946New
GAMMA Investing LLC3,884$761.2K0.04%+394+11.3%Added
Resources Investment Advisors, LLC.3,868$758.1K0.01%−400−9.4%Reduced
Kingswood Wealth Advisors, LLC3,868$758.1K0.04%+91+2.4%Added
Savvy Advisors, Inc.3,860$756.5K0.02%+736+23.6%Added
Courier Capital LLC3,844$753.4K0.04%00.0%Unchanged
Burney Co3,822$749.0K0.02%−51−1.3%Reduced
Bessemer Group Inc3,816$747.0K0.00%+732+23.7%Added
Spirit of America Management Corp3,800$744.7K0.15%00.0%Unchanged
Beacon Pointe Advisors, LLC3,791$743.0K0.00%+793+26.5%Added
Vinva Investment Management Ltd3,753$739.9K0.01%+3,753New
Sterling Capital Management LLC3,755$735.9K0.01%−2,854−43.2%Reduced
Skopos Labs, Inc.3,754$735.6K0.02%+1,193+46.6%Added
Leavell Investment Management, Inc.3,736$732.2K0.03%−84−2.2%Reduced
Farmers & Merchants Investments Inc3,734$731.8K0.02%−105−2.7%Reduced
Avestar Capital, LLC3,730$731.0K0.05%+26+0.7%Added
New Hampshire Trust3,715$728.1K0.15%+111+3.1%Added
Diversify Wealth Management, LLC3,826$724.4K0.01%+3,826New
Douglass Winthrop Advisors, LLC3,686$722.4K0.01%00.0%Unchanged
Cresset Asset Management, LLC3,633$712.1K0.00%+71+2.0%Added
Parallel Advisors, LLC3,625$710.5K0.01%+242+7.2%Added
Savant Capital, LLC3,609$707.2K0.00%+326+9.9%Added
Tectonic Advisors LLC3,607$707.0K0.04%+125+3.6%Added
Greenleaf Trust3,605$706.5K0.01%−130−3.5%Reduced
Atomi Financial Group, Inc.3,601$705.8K0.02%+19+0.5%Added
Kennebec Savings Bank3,547$695.1K0.62%−15−0.4%Reduced
EP Wealth Advisors, LLC3,534$692.6K0.00%+61+1.8%Added
Northwestern Mutual Investment Management Company, LLC3,520$689.9K0.01%−35−1.0%Reduced
Campbell & CO Investment Adviser LLC3,496$685.1K0.04%−12,402−78.0%Reduced
First American Bank3,472$680.4K0.04%+89+2.6%Added
Bridgewater Associates, LP3,471$680.2K0.00%−47−1.3%Reduced
Ascent Wealth Partners, LLC3,414$669.1K0.08%−80−2.3%Reduced
Envestnet Portfolio Solutions, Inc.3,405$667.3K0.00%−1,146−25.2%Reduced
Chicago Partners Investment Group LLC3,270$667.1K0.01%−87−2.6%Reduced
Vise Technologies, Inc.3,808$660.8K0.01%00.0%Unchanged
Meridian Wealth Management, LLC3,352$657.0K0.02%00.0%Unchanged
Meeder Advisory Services, Inc.3,306$647.8K0.03%−199−5.7%Reduced
TD Private Client Wealth LLC3,282$643.3K0.01%−418−11.3%Reduced
Kentucky Retirement Systems12,007$643.0K0.05%+5,008+71.6%Added
OMC Financial Services LTD3,279$642.6K0.25%00.0%Unchanged
Godshalk Welsh Capital Management, Inc.3,275$641.8K0.37%−25−0.8%Reduced
Stephenson National Bank & Trust3,253$637.5K0.18%+18+0.6%Added
Pensionmark Financial Group, LLC3,252$637.3K0.01%+519+19.0%Added
Advisory Services Network, LLC3,225$632.0K0.01%−293−8.3%Reduced
North Dakota State Investment Board3,222$631.4K0.03%−601−15.7%Reduced
Rothschild Capital Partners, LLC3,222$631.4K0.16%−520−13.9%Reduced
Gerber Kawasaki Wealth & Investment Management3,198$625.2K0.02%+3,198New
Jump Financial, LLC3,190$625.2K0.01%+1,065+50.1%Added
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management3,171$621.5K0.01%−488−13.3%Reduced
Metis Global Partners, LLC3,149$617.1K0.02%−406−11.4%Reduced
Martin Capital Advisors, LLP3,145$616.4K0.39%00.0%Unchanged
United Bank3,124$612.2K0.08%−700−18.3%Reduced
Ossiam3,096$606.8K0.01%+673+27.8%Added
Personal Cfo Solutions, LLC3,087$605.1K0.08%+24+0.8%Added
Werlinich Asset Management, LLC3,080$603.6K0.29%+50+1.7%Added
Wedmont Private Capital3,034$603.2K0.02%+319+11.7%Added
Stegent Equity Advisors, Inc.3,061$599.9K0.51%+3,061New
Ballentine Partners, LLC3,059$599.5K0.01%−760−19.9%Reduced
MUFG Securities Americas Inc.3,044$596.6K0.04%+47+1.6%Added
Hunter Associates Investment Management LLC3,022$592.0K0.08%00.0%Unchanged
Red Door Wealth Management, LLC3,020$591.9K0.06%−7−0.2%Reduced
GF Fund Management Co. Ltd.3,016$591.1K0.01%00.0%Unchanged
Capital Investment Advisors, LLC3,012$590.4K0.01%+16+0.5%Added
First Eagle Investment Management, LLC3,000$587.9K0.00%−935−23.8%Reduced
Aaron Wealth Advisors2,995$587.0K0.03%−4,045−57.5%Reduced
First Citizens Bank & Trust Co2,975$583.0K0.01%−728−19.7%Reduced
Focused Alpha, LLC2,965$581.1K0.18%+213+7.7%Added
Securian Asset Management, Inc2,963$580.7K0.02%00.0%Unchanged
Kentucky Retirement Systems Insurance Trust Fund2,933$574.8K0.04%00.0%Unchanged
Horizon Kinetics Asset Management LLC2,900$568.3K0.01%−100−3.3%Reduced
Mountain Pacific Investment Advisers Inc2,900$568.3K0.10%00.0%Unchanged
Balyasny Asset Management LLC2,898$568.0K0.00%+1,203+71.0%Added
Colonial Trust Co2,896$567.6K0.08%−425−12.8%Reduced
Syon Capital LLC2,867$561.9K0.03%−1,200−29.5%Reduced
Garrison Point Advisors, LLC2,856$559.7K0.26%00.0%Unchanged
Wahed Invest LLC2,836$555.8K0.07%+2,836New
Emergent Wealth Advisors, LLC2,800$548.7K0.32%00.0%Unchanged
Unified Investment Management2,783$545.4K0.56%−269−8.8%Reduced
Hobart Private Capital, LLC2,757$540.3K0.11%−183−6.2%Reduced
Maverick Capital LtdSuperinvestorMaverick Capital2,756$540.1K0.01%−21,139−88.5%Reduced
Miracle Mile Advisors, LLC2,739$536.8K0.01%+3+0.1%Added
Essex Financial Services, Inc.2,722$533.5K0.03%+252+10.2%Added
D.A. Davidson & Co.2,720$533.1K0.00%+431+18.8%Added
Sequent Asset Management, LLC2,692$527.6K0.25%00.0%Unchanged
STRS Ohio2,666$522.5K0.00%−4−0.1%Reduced
Triangle Securities Wealth Management2,647$518.8K0.12%−37−1.4%Reduced
Fairvoy Private Wealth, LLC2,644$518.2K0.12%−118−4.3%Reduced
Berkshire Asset Management LLC2,630$515.5K0.02%+38+1.5%Added