QUEST DIAGNOSTICS INC

DGXNYSE

$233.33+2.24 (+0.97%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

QUEST DIAGNOSTICS INC price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+28.9%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	8.38%	$1.97B	0.03%	Not reported
Vanguard Capital Management LLC	6.53%	$1.53B	0.03%	Not reported
Vanguard Portfolio Management LLC	5.54%	$1.3B	0.06%	Not reported
State Street Corp	4.98%	$1.17B	0.03%	Not reported
JPMorgan Chase & Co	3.18%	$749M	0.04%	Not reported
Geode Capital Management, LLC	2.83%	$663M	0.04%	Not reported
Morgan Stanley	2.22%	$522M	0.03%	Not reported
EdgePoint Investment Group Inc.	2.03%	$476M	3.60%	Add 0.16%
Dimensional Fund Advisors LP	1.80%	$421M	0.08%	Not reported
Bank of America Corp	1.75%	$410M	0.03%	Not reported
Grantham, Mayo, Van Otterloo & Co. LLC	1.71%	$400M	0.90%	Add 0.28%
Wells Fargo & Company	1.58%	$371M	0.06%	Not reported
Davis Selected Advisers	1.41%	$330M	1.42%	Reduce 3.84%
Victory Capital Management Inc	1.40%	$329M	0.18%	Not reported
Norges Bank	1.27%	$298M	0.03%	Not reported
FMR LLC	1.26%	$296M	0.01%	Not reported
Invesco Ltd.	1.25%	$292M	0.02%	Not reported
Northern Trust Corp	1.02%	$239M	0.03%	Not reported
Goldman Sachs Group Inc	0.89%	$208M	0.02%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.85%	$200M	0.04%	Not reported
UBS Group AG	0.80%	$188M	0.02%	Not reported
American Century Companies Inc	0.74%	$173M	0.08%	Not reported
M&G PLC	0.72%	$169M	0.84%	Reduce 1.20%
Charles Schwab Investment Management Inc	0.70%	$164M	0.02%	Not reported
Ameriprise Financial Inc	0.69%	$161M	0.03%	Not reported
DekaBank Deutsche Girozentrale	0.68%	$146M	0.25%	Not reported
Legal & General Group Plc	0.65%	$152M	0.03%	Not reported
Bank of New York Mellon Corp	0.57%	$133M	0.02%	Not reported
Alliancebernstein L.P.	0.57%	$123M	0.04%	Not reported
Vanguard Fiduciary Trust Co	0.56%	$132M	0.03%	Not reported
Deutsche Bank Ag\	0.53%	$124M	0.04%	Not reported
Nuveen, LLC	0.51%	$120M	0.03%	Not reported
Principal Financial Group Inc	0.47%	$110M	0.05%	Not reported
Raymond James Financial Inc	0.46%	$107M	0.03%	Not reported
Amundi	0.45%	$106M	0.03%	Not reported
Woodline Partners LP	0.44%	$103M	0.32%	Not reported
Fiduciary Management Inc	0.44%	$102M	1.46%	Not reported
Artemis Investment Management LLP	0.42%	$99.2M	0.88%	Add 4.62%
Crawford Investment Counsel Inc	0.42%	$97.5M	1.62%	Reduce 5.42%
Barclays PLC	0.41%	$95.1M	0.02%	Not reported
Envestnet Asset Management Inc	0.39%	$90.8M	0.02%	Not reported
Schroder Investment Management Group	0.38%	$88.8M	0.06%	Add 41.58%
BNP Paribas Financial Markets	0.36%	$83.8M	0.03%	Not reported
Pacer Advisors, Inc.	0.35%	$81M	0.21%	Reduce 10.31%
M.D. Sass, LLC	0.33%	$76.4M	4.99%	Add 20.37%
Acadian Asset Management LLC	0.31%	$73.4M	0.09%	Not reported
Qube Research & Technologies Ltd	0.31%	$72.8M	0.07%	Not reported
Mackenzie Financial Corp	0.30%	$70.6M	0.07%	Not reported
Advisors Capital Management, LLC	0.30%	$69.4M	0.74%	Add 0.10%
Citigroup Inc	0.29%	$66.9M	0.02%	Not reported

50 of 1,041 holders

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