Amentum has a WARN Act filing history stretching from August 2001 to November 2026, with 36 notices affecting 2,412 employees in total. Filings are concentrated in Colorado (11) and Maryland (4), with additional notices across 10 other states. Notices include 27 layoffs and 9 facility closures. The largest single filing affected 317 employees in Hanover, MD (October 2026).
Under the WARN Act (Worker Adjustment and Retraining Notification Act), employers with 100 or more employees are required to provide 60 days advance notice before conducting plant closures or mass layoffs. These notices are filed with state labor departments and are public record.
Filing Identities (2)
This page aggregates WARN Act notices filed under 2 related names:
- Amentum
- Amentum (Update)
Layoff History
Employees affected over time
All WARN Act Notices
| Location | Effective Date | Employees | Type |
|---|---|---|---|
| Hanover, MD | Nov 13, 2026 | 65 | layoff |
| Hanover, MD | Oct 31, 2026 | 317 | layoff |
| Unknown, GA | Sep 4, 2026 | 77 | layoff |
| Suitland, MD | May 3, 2026 | 27 | layoff |
| Fort Washington, MD | May 3, 2026 | 9 | layoff |
| Pueblo, CO | Jan 26, 2026 | — | layoff |
| Pueblo, CO | Dec 1, 2025 | 10 | layoff |
| Pueblo, CO | Oct 31, 2025 | 55 | layoff |
| Pueblo, CO | Oct 31, 2025 | 60 | layoff |
| Pueblo, CO | Sep 30, 2025 | 135 | closure |
| Pueblo, CO | May 1, 2025 | 93 | layoff |
| Anniston, AL | Apr 3, 2025 | 62 | layoff |
| Madison, KY | Mar 26, 2025 | 90 | closure |
| Pueblo, CO | Jan 28, 2025 | 40 | layoff |
| Madison, KY | Jan 15, 2025 | 20 | closure |
| Pueblo, CO | Sep 30, 2024 | 72 | closure |
| Falls Church & Springfield, VA | Sep 27, 2024 | 53 | closure |
| New Orleans, LA | Sep 2, 2024 | 102 | layoff |
| Pueblo, CO | Jul 1, 2024 | 11 | closure |
| Pueblo, CO | Mar 1, 2024 | 45 | closure |
| City, NC | Feb 3, 2024 | 92 | closure |
| Everett, WA | Jul 30, 2023 | 3 | layoff |
| Oak Harbor, WA | Dec 31, 2022 | 194 | layoff |
| New Orleans, LA | Oct 15, 2022 | 25 | layoff |
| New Boston, TX | Mar 26, 2022 | 178 | layoff |
| New Boston, TX | Oct 28, 2021 | 92 | layoff |
| Virginia Beach, VA | Oct 26, 2020 | 91 | layoff |
| County, NC | Aug 28, 2020 | 100 | layoff |
| Whidbey Island, WA | Aug 28, 2020 | 13 | layoff |
| Chantilly, VA | Jun 16, 2020 | 40 | layoff |
| Whidbey Island, WA | May 12, 2020 | 13 | layoff |
| Pueblo, CO | Aug 25, 2001 | 92 | closure |
| Fort Worth, AZ | N/A | — | layoff |
| Yuma, AZ | N/A | 62 | layoff |
| Chandler, AZ | N/A | — | layoff |
| Chantilly, OR | N/A | 74 | layoff |