Quest Diagnostics Incorporated (DGX) Insider Trading Activity

NYSE$203.78
Market Cap
$22.56B
Sector
Healthcare
Industry
Medical—Diagnostics & Research
Rank in Sector
536 of 869
Rank in Industry
22 of 45

DGX Insider Trading Activity

DGX Median Price and Trade Amounts History Chart

Statistics of Insider Transactions

Amount of Insider Buys and Sells

Buys
$0
0
0
Sells
$37,816,742
27
100

Related Transactions

Gregg Vicky Bdirector
0
$0
1
$239,700
$-239,700
DELANEY MARK ESVP & Chief Commercial Officer
0
$0
1
$1.49M
$-1.49M
KUPPUSAMY KARTHIKSVP, Clinical Solutions
0
$0
4
$3.42M
$-3.42M
Plewman PatrickSVP for Diagnostic Services
0
$0
8
$4.54M
$-4.54M
PREVOZNIK MICHAEL ESVP & General Counsel
0
$0
6
$6.51M
$-6.51M
Doherty Catherine T.EVP, Regional Businesses
0
$0
4
$6.96M
$-6.96M
Davis J. E.CEO and President
0
$0
3
$14.66M
$-14.66M

About Quest Diagnostics Incorporated

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.

Insider Activity of Quest Diagnostics Incorporated

Over the last 12 months, insiders at Quest Diagnostics Incorporated have bought $0 and sold $37.82M worth of Quest Diagnostics Incorporated stock.

On average, over the past 5 years, insiders at Quest Diagnostics Incorporated have bought $0 and sold $25.14M worth of stock each year.

There was no buying activity among insiders over the last 12 months.

The last purchase of 8,000 shares for transaction amount of $444,046 was made by GUINAN MARK (Senior Vice President & CFO) on 2014‑05‑05.

List of Insider Buy and Sell Transactions, Quest Diagnostics Incorporated

2026-06-04SaleKUPPUSAMY KARTHIKSVP, Clinical Solutions
8,147
0.0075%
$200.00
$1.63M
+1.24%
2026-06-01SaleDavis J. E.CEO and President
10,000
0.0091%
$194.14
$1.94M
+2.65%
2026-03-05SaleDoherty Catherine T.EVP, Regional Businesses
5,558
0.0051%
$206.21
$1.15M
-3.97%
2026-03-05SalePREVOZNIK MICHAEL ESVP & General Counsel
3,878
0.0035%
$206.21
$799,682
-3.97%
2026-03-05SalePlewman PatrickSVP for Diagnostic Services
2,855
0.0026%
$206.21
$588,730
-3.97%
2026-03-04SaleKUPPUSAMY KARTHIKSVP, Clinical Solutions
2,628
0.0023%
$204.86
$538,372
-6.03%
2026-03-03SaleDoherty Catherine T.EVP, Regional Businesses
632
0.0006%
$207.73
$131,285
-5.98%
2026-03-03SalePREVOZNIK MICHAEL ESVP & General Counsel
526
0.0005%
$207.73
$109,266
-5.98%
2026-03-03SalePlewman PatrickSVP for Diagnostic Services
410
0.0004%
$207.73
$85,169
-5.98%
2026-03-02SaleDavis J. E.CEO and President
10,000
0.009%
$212.52
$2.13M
-6.81%
2026-02-19SaleDoherty Catherine T.EVP, Regional Businesses
1,433
0.0013%
$204.83
$293,521
-2.82%
2026-02-19SalePREVOZNIK MICHAEL ESVP & General Counsel
1,111
0.001%
$204.83
$227,566
-2.82%
2026-02-19SalePlewman PatrickSVP for Diagnostic Services
958
0.0009%
$204.83
$196,227
-2.82%
2026-02-13SaleDoherty Catherine T.EVP, Regional Businesses
26,165
0.0234%
$206.15
$5.39M
-4.70%
2026-02-10SalePlewman PatrickSVP for Diagnostic Services
5,662
0.005%
$204.00
$1.16M
-3.99%
2025-11-25SaleDavis J. E.CEO and President
55,093
0.0495%
$192.22
$10.59M
+0.92%
2025-11-25SaleGregg Vicky Bdirector
1,250
0.0011%
$191.76
$239,700
+0.92%
2025-11-18SaleDELANEY MARK ESVP & Chief Commercial Officer
7,946
0.0072%
$187.35
$1.49M
+4.26%
2025-09-26SalePREVOZNIK MICHAEL ESVP & General Counsel
227
0.0002%
$188.13
$42,706
+1.25%
2025-09-24SalePREVOZNIK MICHAEL ESVP & General Counsel
175
0.0002%
$187.02
$32,729
+2.36%
Total: 482
*Gray background shows transactions not older than one year

Insider Historical Profitability

12.03%
Davis J. E.CEO and President
132423
0.1196%
$27.08M016
Doherty Catherine T.EVP, Regional Businesses
67122
0.0606%
$13.73M045
PREVOZNIK MICHAEL ESVP & General Counsel
37557
0.0339%
$7.68M077
Gregg Vicky Bdirector
17037
0.0154%
$3.48M03
Plewman PatrickSVP for Diagnostic Services
15198
0.0137%
$3.11M09
KUPPUSAMY KARTHIKSVP, Clinical Solutions
13510
0.0122%
$2.76M08
DELANEY MARK ESVP & Chief Commercial Officer
7530
0.0068%
$1.54M05
RUSCKOWSKI STEPHEN HChairman, CEO and President
334833
0.3025%
$68.48M216
+0.94%
FREEMAN KENNETH W/NJChairman of the Board
248457
0.2244%
$50.82M046
MOHAPATRA SURYA NChairman, President & CEO
200126
0.1808%
$40.93M026
HAGEMANN ROBERTSVP & Chief Financial Officer
154603
0.1397%
$31.62M034
GUINAN MARKExecutive Vice President & CFO
73579
0.0665%
$15.05M15
+14.92%
Miller Joan ElizabethSVP-Oncology & Neurology Srvcs
73373
0.0663%
$15.01M020
MARRONE GERALD CSVP, Administration
55397
0.05%
$11.33M02
Simmons Wayne R.Vice President, Operations
47150
0.0426%
$9.64M04
Cunningham EverettSVP, Commercial
38311
0.0346%
$7.84M08
DEPPE MICHAEL JSVP, Corp. Controller & CAO
34941
0.0316%
$7.15M04
Cohen Jon RSVP & Group Exec. Diag. Sol.
31757
0.0287%
$6.5M04
ZEWE DAVID MSVP, Diagnostic Testing Ops
31079
0.0281%
$6.36M06
STANZIONE DANIELdirector
28349
0.0256%
$5.8M19
+6.36%
BUEHLER WILLIAM Fdirector
26225
0.0237%
$5.36M06
RING TIMOTHY Mdirector
24149
0.0218%
$4.94M07
EGLINTON MANNER CARRIESVP, Advanced Diagnostics
22390
0.0202%
$4.58M01
BRITELL JENNE Kdirector
19903
0.018%
$4.07M09
WILENSKY GAIL Rdirector
17845
0.0161%
$3.65M014
ZIEGLER JOHN Bdirector
16557
0.015%
$3.39M021
PFEIFFER GARY Mdirector
13698
0.0124%
$2.8M07
BALDWIN JOHN C MDdirector
12949
0.0117%
$2.65M09
Peters Robert EVP, Sales & Marketing
12974
0.0117%
$2.65M01
BONGIORNO THOMAS FVP and Corporate Controller
12477
0.0113%
$2.55M124
+3.62%
HAGGERTY ROSANNEdirector
6000
0.0054%
$1.23M01
LEIDEN JEFFREY Mdirector
6000
0.0054%
$1.23M04
MAIN TIMOTHY Ldirector
5658
0.0051%
$1.16M10
+20.29%
CIRILLO MARY Adirector
4132
0.0037%
$845,117.9603
Klug Robert AVP, Corporate Controller
3903
0.0035%
$798,280.5901
GRANT WILLIAM Rdirector
3334
0.003%
$681,903.0202
GLAXOSMITHKLINE PLCdirector, 10 percent owner
0
0%
$006
FLAHERTY JAMES F IIIdirector
0
0%
$031
+20.4%
BRODY KENNETH Ddirector
0
0%
$009
*Gray background shows insiders who have made transactions during last year

DGX Institutional Investors: Active Positions

Increased Positions506+45.63%8M+7.64%
Decreased Positions451-40.67%11M-9.98%
New Positions143New2MNew
Sold Out Positions96Sold Out864,382Sold Out
Total Postitions1,164+4.96%107M-2.34%

DGX Ownership Change vs Market

Institutional Investor Ownership

Top Shareholders
Top Buyers
Top Sellers
New Shareholders
Sold-Out Shareholders
Active Shareholders
Vanguard Group Inc$2.48M12.84%14.25M+18,056+0.13%2025-09-30
Blackrock, Inc.$1.74M9.01%10M-310,940-3.02%2025-09-30
Price T Rowe Associates Inc /Md/$1.22M6.31%7.01M-188,707-2.62%2025-09-30
State Street Corp$907,867.004.71%5.22M+38,931+0.75%2025-09-30
Jpmorgan Chase & Co$750,319.003.89%4.32M-14,269-0.33%2025-09-30
Boston Partners$701,570.003.64%4.04M+997,033+32.8%2025-09-30
Geode Capital Management, Llc$527,711.002.74%3.04M+54,070+1.81%2025-09-30
Victory Capital Management Inc$407,359.002.11%2.34M-465,252-16.56%2025-09-30
Morgan Stanley$397,442.002.06%2.29M+141,806+6.61%2025-09-30
Dimensional Fund Advisors Lp$331,506.001.72%1.91M+6,155+0.32%2025-09-30

Financial Ratios

Summary
Comparison with Competitors

Price to Earnings

Price/Earnings to Growth

Price to Sales

Price to Book

Price/Free Cash Flow

Analyst Recommendations

Analyst Price Targets

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Information is provided 'as-is' and solely for informational purposes and is not advice. Prismo does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.