US WARN layoff notices › Employers › Oak Street Health MSO
Official state WARN filings by Oak Street Health MSO since 2024, normalized from state labor department sources. Latest notice: 2025-11-07.
| Notice date | State | Location | Employees | Effective date | Type |
|---|---|---|---|---|---|
| 2025-11-07 | Illinois | Chicago, 30 W Monroe St., Suite 1200 | 219 | — | State |
Source: state WARN Act disclosures, normalized in the free US WARN notices dataset (CSV/JSON, no login, 48h-delayed, notices 2024+). WARN notices are advance notifications of plant closings and mass layoffs; actual layoff counts and dates can change after filing.