QUEST DIAGNOSTICS INC
Public company- Headquarters
- SECAUCUS, New Jersey
- Ticker
- DGX
- CIK
- 0001022079
WARN notices since 2024
Workers affected since 2024
Executive changes, last 12 months
Last event
Workers affected over time
Cumulative workers in WARN notices since 2024
| Notice date | Workers affected | Cumulative |
|---|---|---|
| Aug 26, 2024 | 121 | 121 |
| Sep 29, 2025 | 98 | 219 |
Leadership
| Role and person | Since | Change |
|---|---|---|
| Executive Vice PresidentCatherine T. Doherty | Oct 6, 2026 | Role change |
Related companies
Same industry and state, with recent events.
- Guardant Health, Inc.
Class II director appointed: Kevin R. Sayer
- Celcuity Inc.
director appointed: David W. Gryska
- Fortrea Holdings Inc.
Chief Accounting Officer appointed: Carrie Russell
- SERA PROGNOSTICS, INC.
CFO appointed: Scott Gleason
- Role change
Executive Vice President role change: Catherine T. Doherty
Catherine T. Doherty moved to Executive Vice President at QUEST DIAGNOSTICS INC, effective November 1, 2026. The company reported the change in an 8-K that cites Item 5.02.
Source: SEC 8-K, filed Oct 6, 2026Role: Executive Vice President
layoffs from Nov 28, 2025
Plant closurePlant closure: Birmingham, AL
Quest Diagnostics/Pack Health filed a WARN notice with the Alabama WARN list on Sep 29, 2025 covering 98 workers in Birmingham. The site closes on Nov 28, 2025.
Source: Alabama WARN list, filed Sep 29, 2025Site: Birmingham, AL
Workers affected: 98
- Plant closure
Plant closure: Norristown, PA
Quest Diagnostics, Inc. filed a WARN notice with the Pennsylvania WARN list covering 121 workers at 400 Egypt Road , Norristown, PA 19403. The site closes on Aug 26, 2024.
Source: Pennsylvania WARN list, filed Aug 26, 2024Site: Norristown, PA
Workers affected: 121
layoffs from Sep 27, 2020
WARN noticeWARN notice: Halethorpe, MD
Quest Diagnostics, Inc. filed a WARN notice with the Maryland WARN list on Aug 7, 2020 covering 52 workers at 1901 Sulphur Springs Road Halethorpe, MD 21227. The layoffs take effect on Sep 27, 2020.
Source: Maryland WARN list, filed Aug 7, 2020Site: Halethorpe, MD
Workers affected: 52
layoffs from Apr 13, 2020
WARN noticeWARN notice: Woodland, CA
Quest Diagnostics filed a WARN notice with the California WARN list on Apr 3, 2020 covering 3 workers in Woodland. The layoffs take effect on Apr 13, 2020.
Source: California WARN list, filed Apr 3, 2020Site: Woodland, CA
Workers affected: 3
layoffs from Apr 13, 2020
WARN noticeWARN notice: Auburn, CA
Quest Diagnostics Incorporated filed a WARN notice with the California WARN list on Apr 3, 2020 covering 7 workers in Auburn. The layoffs take effect on Apr 13, 2020.
Source: California WARN list, filed Apr 3, 2020Site: Auburn, CA
Workers affected: 7
layoffs from Oct 16, 2015
WARN noticeWARN notice: San Jose, CA
Quest Diagnostics Incorporated filed a WARN notice with the California WARN list on Aug 12, 2015 covering 78 workers in San Jose. The layoffs take effect on Oct 16, 2015.
Source: California WARN list, filed Aug 12, 2015Site: San Jose, CA
Workers affected: 78
- Plant closure
Plant closure: Schaumburg, IL
Quest Diagnostics filed a WARN notice with the Illinois WARN list on Apr 19, 2007 covering 58 workers at 506 E. State Parkway, Schaumburg.
Source: Illinois WARN list, filed Apr 19, 2007Site: Schaumburg, IL
Workers affected: 58
Last verified Nov 8, 2026