US WARN layoff notices › Employers › C › CoStar Group
Official state WARN filings by CoStar Group since 1988, normalized from state labor department sources. Latest notice: 2025-11-11.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-11-11 | Georgia | Atlanta, Fulton County | 3 | 2026-01-12 | Permanent Layoff / Reduction in Force |
| 2023-05-17 | California | San Diego County | 4 | 2023-06-30 | Layoff Permanent |
| 2023-03-09 | California | San Diego County | 62 | 2023-05-12 | Layoff Permanent |
| 2022-12-07 | California | San Diego County | 14 | 2023-01-30 | Layoff Permanent |
| 2018-06-29 | Maryland | 7120 Samuel Morse Drive, 3rd Floor, Columbia, MD 21046 | 104 | 2018-08-31 | 1 |
| 2016-01-12 | Illinois | Chicago, 222 West Adams, 15th Floor | 44 | — | 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.
