Insider Trading activities at Quest Diagnostics Inc (DGX)

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Quest Diagnostics Inc (DGX) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Quest Diagnostics Inc. Table 2 shows the detailed insider transactions. This company's CIK number is 1022079.

Total stock buying since 2015: $0.
Total stock sales since 2015: $478,157,806.
Total stock option exercises since 2015: $259,452,203.

1 2

Table 1. Yearly summary of insider stock purchases, sales, and option exercises at *Quest Diagnostics Inc* (*DGX*).
	Insider Buying		Insider Sales		Option Exercises
Year	Shares	Value	Shares	Value	Shares	Value
2026	0	$0	35,329	$7,293,619	31,827	$3,624,587
2025	0	$0	176,393	$31,980,801	108,090	$11,031,178
2024	0	$0	137,855	$21,480,666	119,555	$10,882,491
2023	0	$0	14,476	$2,036,165	0	$0
2022	0	$0	495,105	$69,749,779	476,765	$42,554,328
2021	0	$0	298,670	$42,131,402	282,571	$25,517,382
2020	0	$0	972,125	$112,334,987	954,164	$64,519,249
2019	0	$0	507,917	$49,976,740	483,192	$26,860,850
2018	0	$0	668,422	$71,110,395	592,295	$34,511,327
2017	0	$0	466,701	$47,753,057	447,736	$25,006,000
2016	0	$0	245,446	$19,181,053	226,734	$13,333,851
2015	0	$0	43,495	$3,129,142	32,000	$1,610,960

Table 2. Monthly summary of insider trading at *Quest Diagnostics Inc* (*DGX*).
Trading Period	Insider Buying		Insider Sales		Option Exercises
year-month	Shares	Value	Shares	Value	Shares	Value
2026-02	0	$0	35,329	$7,293,619	31,827	$3,624,587
2025-11	0	$0	64,289	$12,321,499	63,039	$6,421,062
2025-10	0	$0	1,482	$270,316	0	$0
2025-09	0	$0	28,690	$5,368,698	28,690	$2,971,422
2025-08	0	$0	14,017	$2,518,856	8,092	$816,756
2025-07	0	$0	10,479	$1,759,930	8,269	$821,938
2025-05	0	$0	1,748	$306,799	0	$0
2025-04	0	$0	41,746	$7,047,439	0	$0
2025-03	0	$0	10,013	$1,724,388	0	$0
2025-02	0	$0	3,929	$662,876	0	$0
2024-11	0	$0	87,004	$13,987,053	87,004	$7,764,268
2024-10	0	$0	1,775	$278,525	0	$0
2024-08	0	$0	34,541	$5,349,515	32,551	$3,118,223
2024-07	0	$0	420	$60,093	0	$0
2024-04	0	$0	1,760	$246,400	0	$0
2024-02	0	$0	12,355	$1,559,080	0	$0
2023-03	0	$0	11,371	$1,597,057	0	$0
2023-02	0	$0	3,105	$439,108	0	$0
2022-12	0	$0	2,025	$308,812	2,025	$116,573
2022-11	0	$0	42,765	$6,368,015	42,765	$3,654,151
2022-10	0	$0	15,497	$2,247,065	15,497	$839,054
2022-09	0	$0	2,000	$250,040	2,000	$122,450
2022-08	0	$0	2,000	$272,080	2,000	$117,476
2022-07	0	$0	2,000	$266,940	2,000	$114,936

Table 3. Detailed insider trading at *Quest Diagnostics Inc* (*DGX*)
Trade Date	Insider Name	Trade Type	Shares	Price ($)	Value ($)
2026-02-19	Doherty Catherine T. (EVP, Regional Businesses)	Sale	1,433	204.83	293,521
2026-02-19	Plewman Patrick (SVP for Diagnostic Services)	Sale	958	204.83	196,227
2026-02-19	Prevoznik Michael E (SVP & General Counsel)	Sale	1,111	204.83	227,566
2026-02-13	Doherty Catherine T. (EVP, Regional Businesses)	Sale	26,165	207.19	5,421,257
2026-02-13	Doherty Catherine T. (EVP, Regional Businesses)	Option Ex	26,165	112.17	2,934,928
2026-02-10	Plewman Patrick (SVP for Diagnostic Services)	Sale	5,662	204.00	1,155,048
2026-02-10	Plewman Patrick (SVP for Diagnostic Services)	Option Ex	5,662	121.81	689,659
2025-11-25	Davis J. E. (CEO and President)	Sale	55,093	192.28	10,593,116
2025-11-25	Davis J. E. (CEO and President)	Option Ex	55,093	95.80	5,277,633
2025-11-25	Gregg Vicky B (Director)	Sale	1,250	191.76	239,700
2025-11-18	Delaney Mark E (SVP & Chief Commercial Officer)	Sale	7,946	187.35	1,488,683
2025-11-18	Delaney Mark E (SVP & Chief Commercial Officer)	Option Ex	7,946	143.90	1,143,429
2025-10-22	Pfeiffer Gary M (Director)	Sale	1,482	182.40	270,316
2025-09-26	Prevoznik Michael E (SVP & General Counsel)	Sale	227	187.94	42,662
2025-09-26	Prevoznik Michael E (SVP & General Counsel)	Option Ex	227	103.57	23,510
2025-09-24	Prevoznik Michael E (SVP & General Counsel)	Sale	175	187.02	32,729
2025-09-24	Prevoznik Michael E (SVP & General Counsel)	Option Ex	175	103.57	18,124
2025-09-23	Prevoznik Michael E (SVP & General Counsel)	Sale	28,288	187.12	5,293,307
2025-09-23	Prevoznik Michael E (SVP & General Counsel)	Option Ex	28,288	103.57	2,929,788
2025-08-21	Plewman Patrick (SVP for Diagnostic Services)	Sale	1,975	185.00	365,375
2025-08-19	Plewman Patrick (SVP for Diagnostic Services)	Sale	4,532	183.00	829,356
2025-08-19	Plewman Patrick (SVP for Diagnostic Services)	Option Ex	4,532	112.17	508,354
2025-08-15	Plewman Patrick (SVP for Diagnostic Services)	Sale	1,975	180.00	355,500
2025-08-06	Plewman Patrick (SVP for Diagnostic Services)	Sale	5,535	175.00	968,625
2025-08-06	Plewman Patrick (SVP for Diagnostic Services)	Option Ex	3,560	86.63	308,402
2025-07-31	Kuppusamy Karthik (SVP, Clinical Solutions)	Sale	2,210	170.00	375,700
2025-07-30	Kuppusamy Karthik (SVP, Clinical Solutions)	Sale	8,269	167.40	1,384,230
2025-07-30	Kuppusamy Karthik (SVP, Clinical Solutions)	Option Ex	8,269	99.40	821,938
2025-05-13	Delaney Mark E (SVP & Chief Commercial Officer)	Sale	874	175.31	153,220
2025-05-12	Delaney Mark E (SVP & Chief Commercial Officer)	Sale	874	175.72	153,579
2025-04-02	Kuppusamy Karthik (SVP, Clinical Solutions)	Sale	2,555	170.00	434,350
2025-04-02	Davis J. E. (CEO and President)	Sale	39,191	168.74	6,613,089
2025-03-17	Prevoznik Michael E (SVP & General Counsel)	Sale	4,643	170.00	789,310
2025-03-05	Doherty Catherine T. (EVP, Regional Businesses)	Sale	5,370	174.13	935,078
2025-02-27	Doherty Catherine T. (EVP, Regional Businesses)	Sale	824	172.61	142,230
2025-02-27	Prevoznik Michael E (SVP & General Counsel)	Sale	528	172.61	91,138
2025-02-20	Prevoznik Michael E (SVP & General Counsel)	Sale	604	170.99	103,277
2025-02-19	Plewman Patrick (SVP for Diagnostic Services)	Sale	320	169.71	54,307
2025-02-05	Delaney Mark E (SVP & Chief Commercial Officer)	Sale	403	164.30	66,214
2025-02-05	Gregg Vicky B (Director)	Sale	1,250	164.57	205,710
2024-11-29	Prevoznik Michael E (SVP & General Counsel)	Sale	35,146	162.70	5,718,359
2024-11-29	Prevoznik Michael E (SVP & General Counsel)	Option Ex	35,146	86.63	3,044,697
2024-11-27	Doherty Catherine T. (EVP, Regional Businesses)	Sale	33,103	162.64	5,383,838
2024-11-27	Doherty Catherine T. (EVP, Regional Businesses)	Option Ex	33,103	103.57	3,428,477
2024-11-06	Deppe Michael J (SVP, Corp. Controller & CAO)	Sale	18,755	153.82	2,884,856
2024-11-06	Deppe Michael J (SVP, Corp. Controller & CAO)	Option Ex	18,755	68.84	1,291,094
2024-10-28	Kuppusamy Karthik (SVP, Clinical Solutions)	Sale	1,775	156.92	278,525
2024-08-29	Prevoznik Michael E (SVP & General Counsel)	Sale	32,551	154.97	5,044,526
2024-08-29	Prevoznik Michael E (SVP & General Counsel)	Option Ex	32,551	95.80	3,118,223
2024-08-28	Kuppusamy Karthik (SVP, Clinical Solutions)	Sale	1,990	153.26	304,989
2024-07-24	Delaney Mark E (SVP & Chief Commercial Officer)	Sale	420	143.08	60,093
2024-04-29	Kuppusamy Karthik (SVP, Clinical Solutions)	Sale	1,760	140.00	246,400
2024-02-29	Doherty Catherine T. (EVP, Regional Businesses)	Sale	1,187	125.88	149,419
2024-02-29	Prevoznik Michael E (SVP & General Counsel)	Sale	5,611	125.88	706,312
2024-02-28	Doherty Catherine T. (EVP, Regional Businesses)	Sale	5,557	126.57	703,349
2023-03-07	Doherty Catherine T. (SVP, Regional Businesses)	Sale	5,307	140.55	745,898
2023-03-07	Prevoznik Michael E (SVP & General Counsel)	Sale	4,754	140.55	668,174
2023-03-03	Doherty Catherine T. (SVP, Regional Businesses)	Sale	717	140.63	100,831
2023-03-02	Prevoznik Michael E (SVP & General Counsel)	Sale	593	138.54	82,154
2023-02-24	Doherty Catherine T. (SVP, Regional Businesses)	Sale	1,690	141.42	238,999
2023-02-24	Prevoznik Michael E (SVP & General Counsel)	Sale	1,415	141.42	200,109
2022-12-01	Ring Timothy M	Sale	2,025	152.50	308,812
2022-12-01	Ring Timothy M	Option Ex	2,025	57.57	116,573
2022-11-28	Doherty Catherine T. (SVP, Regional Businesses)	Sale	40,765	149.15	6,079,895
2022-11-28	Doherty Catherine T. (SVP, Regional Businesses)	Option Ex	40,765	86.63	3,531,471
2022-11-01	Ring Timothy M	Sale	2,000	144.06	288,120
2022-11-01	Ring Timothy M	Option Ex	2,000	61.34	122,680
2022-10-26	Deppe Michael J (VP, Corp. Controller & CAO)	Sale	15,497	145.00	2,247,065
2022-10-26	Deppe Michael J (VP, Corp. Controller & CAO)	Option Ex	15,497	54.14	839,054
2022-09-01	Ring Timothy M	Sale	2,000	125.02	250,040
2022-09-01	Ring Timothy M	Option Ex	2,000	61.23	122,450
2022-08-01	Ring Timothy M	Sale	2,000	136.04	272,080
2022-08-01	Ring Timothy M	Option Ex	2,000	58.74	117,476
2022-07-01	Ring Timothy M	Sale	2,000	133.47	266,940
2022-07-01	Ring Timothy M	Option Ex	2,000	57.47	114,936
2022-05-24	Rusckowski Stephen H (Chairman, CEO and President)	Sale	282,408	140.12	39,571,291
2022-05-24	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	282,408	95.10	26,857,000
2022-05-23	Rusckowski Stephen H (Chairman, CEO and President)	Sale	77,466	141.30	10,945,790
2022-05-23	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	77,466	95.10	7,367,016
2022-05-17	Prevoznik Michael E (SVP & General Counsel)	Sale	50,604	139.97	7,082,991
2022-05-17	Prevoznik Michael E (SVP & General Counsel)	Option Ex	50,604	66.51	3,365,672
2022-03-08	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	7,032	135.21	950,796
2022-03-08	Prevoznik Michael E (SVP & General Counsel)	Sale	6,228	135.21	842,087
2022-02-28	Prevoznik Michael E (SVP & General Counsel)	Sale	661	130.00	85,930
2022-02-24	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	2,750	126.26	347,215
2022-02-24	Prevoznik Michael E (SVP & General Counsel)	Sale	1,669	126.26	210,727
2021-11-29	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	37,565	155.67	5,847,630
2021-11-29	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Option Ex	37,565	95.80	3,598,539
2021-07-29	Rusckowski Stephen H (Chairman, CEO and President)	Sale	9,493	140.90	1,337,601
2021-07-29	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	9,493	95.80	909,381
2021-07-28	Rusckowski Stephen H (Chairman, CEO and President)	Sale	139,751	140.14	19,584,844
2021-07-28	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	139,751	95.80	13,387,447
2021-07-27	Rusckowski Stephen H (Chairman, CEO and President)	Sale	32,788	140.01	4,590,549
2021-07-27	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	32,788	95.80	3,140,926
2021-07-27	Wilensky Gail R	Sale	12,222	139.30	1,702,475
2021-07-27	Wilensky Gail R	Option Ex	12,222	59.40	725,925
2021-07-26	Rusckowski Stephen H (Chairman, CEO and President)	Sale	5,813	140.03	813,994
2021-07-26	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	5,813	95.80	556,856
2021-05-07	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	8,536	139.96	1,194,724
2021-05-05	Prevoznik Michael E (SVP & General Counsel)	Sale	44,939	137.00	6,156,643
2021-05-05	Prevoznik Michael E (SVP & General Counsel)	Option Ex	44,939	71.17	3,198,308
2021-03-10	Prevoznik Michael E (SVP & General Counsel)	Sale	5,574	120.47	671,499
2021-02-25	Prevoznik Michael E (SVP & General Counsel)	Sale	801	115.49	92,507
2021-02-24	Prevoznik Michael E (SVP & General Counsel)	Sale	1,188	116.95	138,936
2020-12-24	Guinan Mark (Executive Vice President & CFO)	Sale	81,756	120.62	9,861,245
2020-12-24	Guinan Mark (Executive Vice President & CFO)	Option Ex	81,756	66.51	5,437,591
2020-11-24	Wilensky Gail R	Sale	6,111	126.02	770,120
2020-11-24	Wilensky Gail R	Option Ex	6,111	57.66	352,390
2020-10-21	Deppe Michael J (VP, Corp. Controller & CAO)	Sale	10,450	125.00	1,306,250
2020-10-21	Deppe Michael J (VP, Corp. Controller & CAO)	Option Ex	10,450	57.21	597,875
2020-10-16	Rusckowski Stephen H (Chairman, CEO and President)	Sale	291,997	120.00	35,039,640
2020-10-16	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	291,997	66.51	19,420,720
2020-10-14	Prevoznik Michael E (SVP & General Counsel)	Sale	35,591	119.00	4,235,329
2020-10-14	Prevoznik Michael E (SVP & General Counsel)	Option Ex	35,591	52.16	1,856,604
2020-09-02	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	58,392	110.85	6,472,578
2020-09-02	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Option Ex	58,392	66.51	3,883,651
2020-06-08	Guinan Mark (Executive Vice President & CFO)	Sale	72,596	117.69	8,543,678
2020-06-08	Guinan Mark (Executive Vice President & CFO)	Option Ex	72,596	71.17	5,166,657
2020-06-08	Ring Timothy M	Sale	11,730	116.60	1,367,718
2020-06-08	Ring Timothy M	Option Ex	11,730	59.61	699,272
2020-04-27	Eglinton Manner Carrie (SVP, Advanced Diagnostics)	Sale	5,000	111.02	555,075
2020-04-27	Rusckowski Stephen H (Chairman, CEO and President)	Sale	11,717	112.01	1,312,432
2020-04-27	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	11,717	71.17	833,898
2020-03-16	Davis J. E. (EVP, General Diagnostics)	Sale	3,513	87.75	308,251
2020-03-11	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	2,501	104.25	260,729
2020-03-11	Prevoznik Michael E (SVP & General Counsel)	Sale	2,175	104.25	226,743
2020-03-10	Rusckowski Stephen H (Chairman, CEO and President)	Sale	100	112.19	11,219
2020-03-10	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	100	71.17	7,117
2020-03-06	Rusckowski Stephen H (Chairman, CEO and President)	Sale	230,178	114.36	26,324,076
2020-03-06	Rusckowski Stephen H (Chairman, CEO and President)	Option Ex	230,178	71.17	16,381,768
2020-02-27	Davis J. E. (EVP, General Diagnostics)	Sale	1,100	109.02	119,922
2020-02-27	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	789	109.02	86,016
2020-02-27	Prevoznik Michael E (SVP & General Counsel)	Sale	690	109.02	75,223
2020-02-26	Davis J. E. (EVP, General Diagnostics)	Sale	510	111.09	56,655
2020-02-26	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	368	111.09	40,881
2020-02-26	Prevoznik Michael E (SVP & General Counsel)	Sale	321	111.09	35,659
2020-02-25	Davis J. E. (EVP, General Diagnostics)	Sale	598	112.73	67,412
2020-02-25	Doherty Catherine T. (SVP, Group Exec. Clin. Fran.)	Sale	405	112.73	45,655
2020-01-02	Davis J. E. (EVP, General Diagnostics)	Sale	143,537	105.98	15,212,481
2020-01-02	Davis J. E. (EVP, General Diagnostics)	Option Ex	143,546	68.84	9,881,706
2019-11-27	Prevoznik Michael E (SVP & General Counsel)	Sale	44,556	107.50	4,789,814
2019-11-27	Prevoznik Michael E (SVP & General Counsel)	Option Ex	44,556	54.14	2,412,395
2019-09-17	Deppe Michael J (VP, Corp. Controller & CAO)	Sale	5,000	106.00	530,000
2019-09-17	Deppe Michael J (VP, Corp. Controller & CAO)	Option Ex	5,000	55.65	278,250
2019-06-13	Guinan Mark (Executive Vice President & CFO)	Sale	73,005	100.00	7,300,500
2019-06-13	Guinan Mark (Executive Vice President & CFO)	Option Ex	73,005	52.16	3,808,305
2019-06-13	Rusckowski Stephen H (Chairman, President and CEO)	Sale	244,565	100.00	24,456,500
2019-06-13	Rusckowski Stephen H (Chairman, President and CEO)	Option Ex	244,565	52.16	12,757,733
2019-04-24	Davis J. E. (EVP, General Diagnostics)	Sale	47,574	95.00	4,519,530
2019-04-24	Davis J. E. (EVP, General Diagnostics)	Option Ex	47,574	60.67	2,886,552

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Insider trading activities including stock purchases, stock sales, and option exercises of DGX listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Quest Diagnostics Inc (symbol DGX, CIK number 1022079) see the Securities and Exchange Commission (SEC) website.

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