Quest Diagnostics Layoffs & WARN Notices — 916 Workers Affected
All WARN Act mass layoff and plant closure notices filed by Quest Diagnostics.
Data updated
13
Total Notices
916
Workers Affected
7
States
2001
First Filing
2024
Latest Filing
Data Insights
Industry Breakdown
Workers affected by industry sector
Layoff Types
Workers affected by notice type
Quest Diagnostics WARN Act Filings
| Company | Location | Employees | Notice Date | Type |
|---|---|---|---|---|
| Quest Diagnostics | Norristown, PA | 121 | ||
| Quest Diagnostics | Horsham, PA | 154 | Layoff | |
| Quest Diagnostics | Tucker, GA | 71 | ||
| Quest Diagnostics | Baltimore, MD | 52 | Layoff | |
| Quest Diagnostics | Auburn, CA | 7 | Layoff | |
| Quest Diagnostics | Woodland, CA | 3 | Layoff | |
| Quest Diagnostics | Troy, MI | 57 | Closure | |
| Quest Diagnostics Inc. | Wallingford, CT | 77 | Layoff | |
| Quest Diagnostics | San Jose, CA | 78 | Layoff | |
| Quest Diagnostics Inc. (Update to 7/1/15 notice) | Wallingford, CT | 81 | Layoff | |
| Quest Diagnostics | Wallingford, CT | 80 | Layoff | |
| Quest Diagnostics | Schaumburg, IL | 55 | Closure | |
| Quest Diagnostics | Grand Rapids, MI | 80 | Layoff |
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Quest Diagnostics Layoff FAQ
Is Quest Diagnostics laying off in 2026?
Quest Diagnostics has no 2026 WARN notices on record. The most recent WARN Act filing was in 2024.
How many layoffs has Quest Diagnostics had?
Quest Diagnostics has filed 13 WARN Act notices affecting a total of 916 workers across 7 states.
When was Quest Diagnostics's most recent layoff?
Quest Diagnostics's most recent WARN Act filing was on 2024-08-26.
What states has Quest Diagnostics laid off workers in?
Quest Diagnostics has filed WARN Act notices in: California, Connecticut, Georgia, Illinois, Maryland, Michigan, Pennsylvania.
What is the WARN Act?
The Worker Adjustment and Retraining Notification (WARN) Act is a federal law that requires employers with 100 or more employees to provide 60 calendar days' advance notice of plant closings and mass layoffs.
How do I get notified about Quest Diagnostics layoffs?
Subscribe using the form above to receive free daily email alerts whenever new WARN Act notices are filed. You can also set up custom filters and webhooks with a paid API plan at warnfirehose.com/pricing.
Latest Layoff Reports
SEC Filings & Hiring Signals
Cross-dataset signals for Quest Diagnostics: SEC 8-K event filings and H-1B labor condition applications often move before and after WARN notices.
8-K — 8-K
Filed 2026-07-23
8-K — 8-K
Filed 2026-05-21
8-K — FORM 8-K
Filed 2026-05-08
8-K — FORM 8-K
Filed 2026-05-01
8-K — 8-K
Filed 2026-04-21
11 H-1B LCA petitions filed (FY2010–FY2012) — check H-1B layoff risk →
Related Industries
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States with Filings
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