US WARN layoff notices › Employers › N › Northrop Grumman
Official state WARN filings by Northrop Grumman since 1988, normalized from state labor department sources. Latest notice: 2025-08-20.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-08-20 | California | Santa Clara County | 78 | 2025-10-31 | Closure Permanent |
| 2024-08-13 | California | Los Angeles County | 500 | 2024-10-14 | Layoff Permanent |
| 2024-03-20 | California | Los Angeles County | 2 | 2024-04-29 | Layoff Permanent |
| 2024-03-20 | California | Los Angeles County | 105 | 2024-04-29 | Layoff Permanent |
| 2024-03-20 | California | Los Angeles County | 731 | 2024-04-29 | Layoff Permanent |
| 2024-03-20 | California | Los Angeles County | 3 | 2024-04-29 | Layoff Permanent |
| 2024-03-20 | California | Los Angeles County | 227 | 2024-04-29 | Layoff Permanent |
| 2024-03-20 | California | Los Angeles County | 1 | 2024-04-29 | Layoff Permanent |
| 2021-01-12 | California | San Diego, San Diego County | 100 | 2021-03-12 | Layoff Permanent |
| 2020-03-09 | Arizona | Sierra Vista | — | — | WARN |
| 2017-11-14 | Washington | Lakewood | 43 | 2018-01-12 | Closure |
| 2017-11-02 | Colorado | Pikes Peak | 50 | — | Reduction in Force |
| 2015-04-29 | Indiana | Edinburg | 49 | 2015-06-29 | LO |
| 2015-04-03 | California | Fort Irwin | 476 | 2015-05-31 | Layoff Permanent |
| 2014-08-05 | California | Fort Irwin | 423 | 2014-10-03 | Layoff Permanent |
| 2013-05-24 | Arizona | Yuma | 58 | — | WARN |
| 2012-11-05 | Connecticut | Norwalk | 297 | 2012-12-31 | Closing |
| 2012-09-01 | New Jersey | Mount Laurel | 61 | 2012-11-06 | — |
| 2012-04-26 | Oklahoma | — | — | — | Mass Layoff |
| 2012-02-15 | Maryland | P.O. Box 100, Fort Meade, MD | 224 | 2012-04-20 | 2 |
| 2012-02-15 | Utah | Lehi | 84 | — | — |
| 2011-02-28 | Maryland | 7040 TroyHill Dr., Elkridge, MD | 146 | 2011-04-30 | 2 |
| 2011-01-31 | Alabama | Redstone Arsenal | 97 | 2011-03-31 | Layoff * |
| 2010-09-27 | Vermont | St. Albans | 106 | — | WARN |
| 2010-08-06 | Alabama | Redstone Arsenal | 92 | 2010-09-30 | Layoff * |
| 2010-06-28 | Maryland | 18450 Showalter Road, Hagerstown, MD | 59 | 2010-08-16 | 2 |
| 2010-03-11 | Maryland | Hagerstown | 174 | 2010-05-09 | 2 |
| 2006-06-06 | Alabama | Redstone Arsenal | 97 | 2006-06-09 | Layoff * |
| 2006-02-01 | New Jersey | NEWARK/CHERRY HILL | — | 2006-03-31 | — |
| 2005-08-23 | Illinois | O'Fallon, 670 Pierce Blvd | 54 | — | State |
Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, no delay, notices 1988+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.
