Quest Diagnostics Incorporated

DGX · NYSE · USD

PoliticiansInstitutionalInsiders

Current holders

Politician	Disclosed
Donald Trump R · EXECUTIVE	net $135K – $484K 4 disclosures · 2 bought / 2 sold · last Jul 23, 2026
Ro Khanna D · HOUSE · CA	−$92K – $188K −$193K – $357K today 20 filings · last Feb 17, 2026
Carol D. Miller R · HOUSE · WV	$1K – $64K $7K – $109K today 3 filings · last Mar 10, 2025
Alan Armstrong R · SENATE · OK	$2K – $30K $2K – $37K today 2 filings · last Mar 30, 2026
Gilbert Ray Cisneros, Jr. D · HOUSE · CA	$1K – $15K $3K – $41K today 1 filing · last Mar 14, 2019
Bob Corker R · HOUSE · TN	−$13K – $29K −$54K – $133K today 3 filings · last May 20, 2014
Thomas R. Carper D · HOUSE · DE	−$14K – $14K −$23K – $45K today 2 filings · last Dec 11, 2023
Kathy E. Manning D · HOUSE · NC	−$14K – $14K −$25K – $25K today 2 filings · last Aug 3, 2022
Julia Letlow R · HOUSE · LA	−$14K – $14K −$20K – $19K today 2 filings · last Jul 24, 2025
Dean Phillips D · HOUSE · MN	−$56K – $56K −$140K – $137K today 8 filings · last Jun 1, 2020

Recent transactions

Trades from Nov 4, 2021 – Jul 23, 2026

Politician	Type	Filed after	Amount
Donald Trump R · EXECUTIVE	Sell	61 days Jul 23, 2026 → Sep 22, 2026	≥$15K
Donald Trump R · EXECUTIVE	Sell	71 days Jun 12, 2026 → Aug 22, 2026	≥$1K
Julie Johnson D · HOUSE · TX-32	Buy	279 days Oct 30, 2025 → Aug 5, 2026	≥$1K
Julie Johnson D · HOUSE · TX-32	Sell	279 days Oct 30, 2025 → Aug 5, 2026	≥$1K
Alan Armstrong R · SENATE · OK	Buy	113 days Mar 30, 2026 → Jul 21, 2026	≥$1K
Alan Armstrong R · SENATE · OK	Buy	116 days Mar 27, 2026 → Jul 21, 2026	≥$1K
Donald Trump R · EXECUTIVE	Buy	44 days May 18, 2026 → Jul 1, 2026	≥$100K
Donald Trump R · EXECUTIVE	Buy	51 days May 11, 2026 → Jul 1, 2026	≥$100K
Ro Khanna D · HOUSE · CA-17	Sell	20 days Feb 17, 2026 → Mar 9, 2026	≥$1K
Ro Khanna D · HOUSE · CA-17	Buy	8 days Jan 29, 2026 → Feb 6, 2026	≥$1K

Congressional trading data provided by QuiverQuant

Institutional

Investors holding

1,127

13F shares

105.7M

Total invested

$22.4B

Ownership

96.1%

New positions

121

Closed positions

Increased positions

553

Reduced positions

354

Put/Call ratio

0.68

Holder	Reported	Shares	Value	Δ Qtr
BLACKROCK, INC.	8/7/2026	9.3M	$2.0B	+1.12%
VANGUARD CAPITAL MANAGEMENT LLC	8/13/2026	7.2M	$1.5B	+1.23%
VANGUARD PORTFOLIO MANAGEMENT LLC	8/13/2026	6.1M	$1.3B	+0.82%
STATE STREET CORP	9/22/2026	5.5M	$1.2B	+2.52%
PRICE T ROWE ASSOCIATES INC /MD/	8/14/2026	5.4M	$1.2B	−13.54%
BOSTON PARTNERS	8/4/2026	4.7M	$1.0B	+18.25%
JPMORGAN CHASE & CO	8/12/2026	3.5M	$748.6M	−8.48%
GEODE CAPITAL MANAGEMENT, LLC	8/12/2026	3.1M	$662.6M	+1.67%
MORGAN STANLEY	8/13/2026	2.5M	$521.5M	−0.78%
EDGEPOINT INVESTMENT GROUP INC.	8/14/2026	2.2M	$476.4M	+0.16%
DIMENSIONAL FUND ADVISORS LP	8/11/2026	2M	$421.4M	+1.98%
BANK OF AMERICA CORP /DE/	8/14/2026	1.9M	$410.2M	+10.40%
GRANTHAM, MAYO, VAN OTTERLOO & CO. LLC	8/13/2026	1.9M	$400.2M	+0.28%
WELLS FARGO & COMPANY/MN	8/14/2026	1.8M	$371.2M	−0.66%
DAVIS SELECTED ADVISERS	8/11/2026	1.6M	$329.8M	−3.84%
VICTORY CAPITAL MANAGEMENT INC	8/7/2026	1.6M	$328.6M	−16.02%
NORGES BANK	8/12/2026	1.4M	$298.1M	—
FMR LLC	8/13/2026	1.4M	$296.5M	+48.45%
INVESCO LTD.	8/14/2026	1.4M	$292.3M	−15.83%
NORTHERN TRUST CORP	8/13/2026	1.1M	$239.0M	+1.19%
GOLDMAN SACHS GROUP INC	8/14/2026	982.7K	$208.3M	−27.14%
UBS ASSET MANAGEMENT AMERICAS INC	8/13/2026	942.4K	$199.7M	+11.32%
UBS GROUP AG	8/13/2026	888.9K	$188.4M	+26.56%
AMERICAN CENTURY COMPANIES INC	8/12/2026	818.2K	$173.4M	−5.66%
M&G PLC	8/6/2026	795.6K	$168.7M	−1.20%

Insider transactions

Insider	Type	Transacted	Price	Date
Delaney Mark E	L-SMALL	25	$235.94	Oct 21
Main Timothy L	L-SMALL	18	$235.94	Oct 21
Plewman Patrick	L-SMALL	41	$235.94	Oct 21
Lassiter Wright Iii	L-SMALL	6	$235.96	Oct 21
Kuppusamy Karthik	L-SMALL	33	$235.94	Oct 21
Gregg Vicky B	A-AWARD	63	$235.94	Oct 21
Samad Sam	A-AWARD	90	$235.94	Oct 21
Carter Robert B	L-SMALL	10	$235.93	Oct 21
Wentworth Timothy C	A-AWARD	135	—	Oct 1

Analyst consensus

Hold34 analysts

Bearish · 3 · Hold · 18 · Bullish · 13

Earnings history

	EPS	Estimate
Q4 2024	$2.23	$2.19	Beat
Q1 2025	$2.21	$2.15	Beat
Q2 2025	$2.62	$2.57	Beat
Q3 2025	$2.60	$2.50	Beat
Q4 2025	$2.42	$2.36	Beat
Q1 2026	$2.50	$2.37	Beat
Q2 2026	$3.12	$2.82	Beat
Q3 2026	$3.00	$2.87	Beat

Peers

Company overview

IPO dateDec 17, 1996

CEOJames E. Davis

Employees57,000

SectorHealthcare

IndustryMedical - Diagnostics & Research

CountryUS

ExchangeNew York Stock Exchange

Websitewww.questdiagnostics.com

Quest Diagnostics Incorporated, founded in 1967 and headquartered in Secaucus, New Jersey, is a premier provider of diagnostic testing, information, and related services, serving clients both domestically and internationally. Its core business involves the development and provision of diverse diagnostic information services, such as routine, advanced clinical, and anatomic pathology testing. While primarily operating under the Quest Diagnostics brand, it also leverages specialized identities like AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum to reach a broad spectrum of clients. Its extensive client base includes patients, clinicians, hospitals, integrated delivery networks, health plans, employers, and other direct healthcare entities. Delivery of these services is facilitated through a robust network comprising laboratories, patient service centers, in-office phlebotomists, call centers, and mobile health professionals including paramedics and nurses. Additionally, the company provides risk assessment services for the life insurance industry and offers comprehensive information technology solutions to healthcare organizations and clinicians.

Athenic provides research and information tools for educational purposes only and is not a registered investment adviser or broker-dealer. Nothing on this page is investment advice or a recommendation to buy or sell any security. Market data may be delayed. Past performance is not indicative of future results. Investing involves risk, including the possible loss of principal.