Amentum has filed 16 WARN notices across 6 states, affecting 1,206 workers. Filings are concentrated in Pueblo, Milestone Parkway Hanover, and Chandler. Of these, 2 involved facility closures and 6 were layoff events. Filing dates range from Nov 11, 2024 through Aug 21, 2026. Amentum provided an average of 63 days notice before the effective date of these filings. The Aug 18, 2026 filing for 317 workers in Milestone Parkway Hanover is the third largest filed in Maryland in 2026 and larger than 94 percent of WARN filings nationally. Pueblo accounts for 40% of affected workers.
| Location | State | Type | Workers | Effective | Filed |
|---|---|---|---|---|---|
| Chandler 4500 S. DobsonChandler, Arizona 85248 |
AZ | 75 | 2026-08-21 | ||
| Milestone Parkway Hanover | MD | Layoff | 65 | 2026-11-13 | 2026-08-18 |
| Milestone Parkway Hanover | MD | Layoff | 317 | 2026-10-31 | 2026-08-18 |
| Fort Washington | MD | Layoff | 9 | 2026-05-03 | 2026-03-09 |
| Suitland | MD | Layoff | 27 | 2026-05-03 | 2026-03-09 |
| Pueblo | CO | 10 | 2025-12-01 | 2025-10-01 | |
| Pueblo | CO | 60 | 2025-10-31 | 2025-08-25 | |
| Pueblo | CO | 55 | 2025-10-31 | 2025-07-30 | |
| Richmond | VA | Layoff | 56 | 2025-08-31 | 2025-07-02 |
| Pueblo | CO | Closure | 135 | 2025-09-30 | 2025-06-24 |
Amentum has an upcoming layoff effective Nov 13, 2026. If you are affected, you remain employed with regular pay and benefits until the effective date. Use this time to prepare: file for unemployment insurance so your claim is ready when your last day arrives, review your COBRA health coverage options, and visit your local America's Job Center for free career counseling and retraining vouchers. Ask about Rapid Response services, which are specifically designed for WARN-affected workers.
Find your state's unemployment insurance program and apply online. You may be eligible before your last day.
Continue your employer health plan for up to 18 months, or compare lower-cost options on the Health Insurance Marketplace.
Employers with 100 or more employees must give 60 days written notice before mass layoffs or plant closings.
Free career counseling, resume help, job search assistance, and retraining programs through CareerOneStop.
Interview prep, job search management, and career planning tools to help you land your next role.
America's Job Centers offer free career counseling, resume help, interview prep, job search assistance, and retraining vouchers for workers affected by WARN Act layoffs. Ask about Rapid Response services.
All data on this site is sourced from official WARN Act filings published by state workforce agencies. Filings are updated regularly but may not reflect same-day submissions. Coverage varies by state.
One outlet has covered this, on 2026-08-27.
Across 12 filings where both a notice date and a layoff date are published, the median gap was 63 days. 4 of 12 (33 percent) fell short of the 60 days the WARN Act requires.
Notice length matters when a severance agreement lands, because most agreements ask you to waive WARN claims. How the notice period changes what severance is worth.
Severance is negotiable more often than people assume, and the leverage is largest before a notice lands. Financial Samurai's How To Engineer Your Layoff walks through how those conversations actually go, with real severance examples.
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