United BioSource Layoffs & WARN Notices — 246 Workers Affected
All WARN Act mass layoff and plant closure notices filed by United BioSource.
Data updated
2
Total Notices
246
Workers Affected
2
States
2025
First Filing
2025
Latest Filing
United BioSource WARN Act Filings
| Company | Location | Employees | Notice Date | Type |
|---|---|---|---|---|
| United BioSource | Kansas City, MO | 123 | Closure | |
| United BioSource LLC (UBC) | Overland Park, KS | 123 | Layoff |
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United BioSource Layoff FAQ
Is United BioSource laying off in 2026?
United BioSource has no 2026 WARN notices on record. The most recent WARN Act filing was in 2025.
How many layoffs has United BioSource had?
United BioSource has filed 2 WARN Act notices affecting a total of 246 workers across 2 states.
When was United BioSource's most recent layoff?
United BioSource's most recent WARN Act filing was on 2025-09-26.
What states has United BioSource laid off workers in?
United BioSource has filed WARN Act notices in: Kansas, Missouri.
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 United BioSource 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.
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SEC Filings & Hiring Signals
Cross-dataset signals for United BioSource: SEC 8-K event filings and H-1B labor condition applications often move before and after WARN notices.
29 H-1B LCA petitions filed (FY2012–FY2025) — check H-1B layoff risk →
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