Microsoft WARN Filings in Washington
WARN Act layoff and closure notices filed by Microsoft with the Washington State Employment Security Department
Reading this history
The archive contains filings on 22 distinct dates, from August 23, 2004 to September 22, 2026. The records name 1 Washington county.
These records use the exact employer name shown above. Related businesses may appear under other names. Separate filings can cover overlapping groups of workers, so their combined counts cannot establish how many people lost jobs.
| Filing year | Filings | Sum of reported counts | Missing counts |
|---|---|---|---|
| 2026 | 2 | 882 | 0 |
| 2025 | 5 | 3,202 | 0 |
| 2023 | 7 | 3,199 | 0 |
| 2014 | 3 | 2,733 | 0 |
| 2009 | 4 | 2,101 | 0 |
| 2004 | 1 | 67 | 0 |
How to read a WARN notice · Find these filings in ESD's public search
Filing History
Swipe horizontally to see all columns.
| Filed | County | Effective | Workers | Type |
|---|---|---|---|---|
| September 22, 2026 | King | November 21, 2026 | 277 | Layoff |
| July 6, 2026 | King | September 4, 2026 | 605 | Layoff |
| September 8, 2025 | King | November 7, 2025 | 42 | Layoff |
| August 4, 2025 | King | October 3, 2025 | 40 | Layoff |
| July 2, 2025 | King | August 31, 2025 | 830 | Layoff |
| June 2, 2025 | King | August 1, 2025 | 305 | Layoff |
| May 13, 2025 | King | July 12, 2025 | 1,985 | Layoff |
| July 10, 2023 | King | September 8, 2023 | 276 | Layoff |
| June 5, 2023 | King | August 4, 2023 | 22 | Layoff |
| May 9, 2023 | King | May 26, 2023 | 158 | Layoff |
| March 27, 2023 | King | May 26, 2023 | 559 | Layoff |
| March 6, 2023 | King | May 5, 2023 | 689 | Layoff |
| February 9, 2023 | King | April 10, 2023 | 617 | Layoff |
| January 18, 2023 | King | March 20, 2023 | 878 | Layoff |
| October 30, 2014 | King | December 28, 2014 | 635 | Layoff |
| September 18, 2014 | King | November 17, 2014 | 747 | Layoff |
| July 17, 2014 | King | September 15, 2014 | 1,351 | Layoff |
| September 3, 2009 | King | November 1, 2009 | 27 | Layoff |
| May 5, 2009 | King | July 4, 2009 | 1,200 | Layoff |
| April 1, 2009 | King | June 30, 2009 | 2 | Layoff |
| January 23, 2009 | King | March 23, 2009 | 872 | Layoff |
| August 23, 2004 | King | October 25, 2004 | 67 | Layoff |
Microsoft WARN Questions
How many workers are reported in Microsoft's Washington WARN filings?
Microsoft has 22 WARN filings in this archive reporting a combined 12,184 workers. Announced actions can change, and filings may cover overlapping groups. The sum has not been deduplicated across announcements.
When was Microsoft's most recent WARN notice in Washington?
The most recent notice was filed September 22, 2026.
About This Data
Notices come from the Washington State ESD WARN database, with history back to 2004. Company names appear as filed; related entities may file under different names. Click a filing date for details and guidance on finding the filing in ESD's public WARN search. Review ESD's WARN requirements for thresholds and exceptions.