Dudediligence.

Quest Diagnostics Incorporated

DGXNYSE · Services-Medical Laboratories
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$36.8M

21 notices · 177,383 sh

Oct 2025 to Oct 2026

Reported ·

$28.9M

25 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

22 of 25 reported sales carry the 10b5-1 box. Together they are 0.13% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-01: Davis J. E., Form 1442026-08-28: PREVOZNIK MICHAEL E, Form 1442026-07-28: DELANEY MARK E, Form 1442026-06-04: KUPPUSAMY KARTHIK, Form 1442026-06-01: Davis J. E., Form 1442026-03-05: PREVOZNIK MICHAEL E, Form 1442026-03-05: Doherty Catherine T., Form 1442026-03-05: Plewman Patrick, Form 1442026-03-03: Doherty Catherine T., Form 1442026-03-03: PREVOZNIK MICHAEL E, Form 1442026-03-03: Plewman Patrick, Form 1442026-03-02: Davis J. E., Form 1442026-02-19: Plewman Patrick, Form 1442026-02-19: Doherty Catherine T., Form 1442026-02-19: PREVOZNIK MICHAEL E, Form 1442026-02-13: Doherty Catherine T., Form 1442026-02-10: Plewman Patrick, Form 1442025-11-25: Davis J. E., Form 1442025-11-25: Gregg Vicky B, Form 1442025-11-18: DELANEY MARK E, Form 1442025-10-22: PFEIFFER GARY M, Form 1442025-10-22: PFEIFFER GARY M, sold2025-11-18: DELANEY MARK E, sold2025-11-25: Gregg Vicky B, sold2025-11-25: Davis J. E., sold2026-02-10: Plewman Patrick, sold2026-02-13: Doherty Catherine T., sold2026-02-19: PREVOZNIK MICHAEL E, sold2026-02-19: Plewman Patrick, sold2026-02-19: Doherty Catherine T., sold2026-03-02: Davis J. E., sold2026-03-03: Plewman Patrick, sold2026-03-03: PREVOZNIK MICHAEL E, sold2026-03-03: Doherty Catherine T., sold2026-03-04: KUPPUSAMY KARTHIK, sold2026-03-05: Plewman Patrick, sold2026-03-05: PREVOZNIK MICHAEL E, sold2026-03-05: Doherty Catherine T., sold2026-06-01: Davis J. E., sold2026-06-04: KUPPUSAMY KARTHIK, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-09-01Davis J. E., CEO and President$2,427,200
10,000 shplan 2025-08-26Form 4s on file end Jun 23144 ↗
2026-08-28PREVOZNIK MICHAEL E, SVP & General Counsel$5,513,082
22,677 shplan 2026-05-29Form 4s on file end Jun 23144 ↗
2026-07-28DELANEY MARK E, SVP & Chief Commercial Officer$376,288
1,600 shplan 2026-04-23Form 4s on file end Jun 23144 ↗
2026-06-04KUPPUSAMY KARTHIK, SVP, Clinical Solutions$1,629,400
8,147 shplan 2026-02-26144 ↗
Form 4, 2026-06-08: sold 8,147 at $200.00 Form 4 ↗
2026-06-01Davis J. E., CEO and President$1,941,360
10,000 shplan 2025-08-26144 ↗
Form 4, 2026-06-02: sold 10,000 at $194.14 Form 4 ↗
2026-03-05PREVOZNIK MICHAEL E, SVP & General Counsel$799,682
3,878 shplan 2025-05-30144 ↗
Form 4, 2026-03-06: sold 3,878 at $206.21 Form 4 ↗
2026-03-05Doherty Catherine T., EVP, Regional Businesses$1,146,115
5,558 shplan 2025-11-14144 ↗
Form 4, 2026-03-06: sold 5,558 at $206.21 Form 4 ↗
2026-03-05Plewman Patrick, SVP for Diagnostic Services$588,730
2,855 shplan 2025-05-01144 ↗
Form 4, 2026-03-06: sold 2,855 at $206.21 Form 4 ↗
2026-03-03Doherty Catherine T., EVP, Regional Businesses$131,285
632 shplan 2025-11-14144 ↗
Form 4, 2026-03-04: sold 632 at $207.73 Form 4 ↗
2026-03-03PREVOZNIK MICHAEL E, SVP & General Counsel$109,266
526 shplan 2025-05-30144 ↗
Form 4, 2026-03-04: sold 526 at $207.73 Form 4 ↗
2026-03-03Plewman Patrick, SVP for Diagnostic Services$85,169
410 shplan 2025-05-01144 ↗
Form 4, 2026-03-04: sold 410 at $207.73 Form 4 ↗
2026-03-02Davis J. E., CEO and President$2,125,200
10,000 shplan 2025-08-26144 ↗
Form 4, 2026-03-04: sold 10,000 at $212.52 Form 4 ↗
2026-02-19Plewman Patrick, SVP for Diagnostic Services$196,227
958 shplan 2025-05-01144 ↗
Form 4, 2026-02-20: sold 958 at $204.83 Form 4 ↗
2026-02-19Doherty Catherine T., EVP, Regional Businesses$293,521
1,433 shplan 2025-11-14144 ↗
Form 4, 2026-02-20: sold 1,433 at $204.83 Form 4 ↗
2026-02-19PREVOZNIK MICHAEL E, SVP & General Counsel$227,566
1,111 shplan 2025-05-30144 ↗
Form 4, 2026-02-20: sold 1,111 at $204.83 Form 4 ↗
2026-02-13Doherty Catherine T., EVP, Regional Businesses$5,428,714
26,165 shplan 2025-11-14144 ↗
Form 4, 2026-02-17: sold 26,165 at $206.15 Form 4 ↗
2026-02-10Plewman Patrick, SVP for Diagnostic Services$1,155,048
5,662 shplan 2025-05-01144 ↗
Form 4, 2026-02-12: sold 5,662 at $204.00 Form 4 ↗
2025-11-25Davis J. E., CEO and President$10.6M
55,093 shplan 2025-08-26144 ↗
Form 4, 2025-11-28: sold 55,093 at $192.22 Form 4 ↗
2025-11-25Gregg Vicky B, Director$239,700
1,250 shno plan date144 ↗
Form 4, 2025-11-28: sold 1,250 at $191.76 Form 4 ↗
2025-11-18DELANEY MARK E, SVP & Chief Commercial Officer$1,488,683
7,946 shplan 2025-08-18144 ↗
Form 4, 2025-11-20: sold 7,946 at $187.35 Form 4 ↗
2025-10-22PFEIFFER GARY M, Director$270,317
1,482 shno plan date144 ↗
Form 4, 2025-10-24: sold 1,482 at $182.40 Form 4 ↗