30 W Monroe St., Suite 1200 Chicago, IL 60603, Illinois
219 workers · Closure · filed Nov 7, 2025
A WARN notice is filed with the state before a plant closing or a mass layoff, under the federal WARN Act or a state law like it. Workers is the number the employer said would be affected; plans can change after filing. Data sources
- Company
- Oak Street Health MSO, LLC
- Workers
- 219 workers
- Kind
- Closure
- Notice date
- Nov 7, 2025
- Location
- 30 W Monroe St., Suite 1200 Chicago, IL 60603
- State
- Illinois
- Notice
- il-93ecac6df5e3c3e3
As published
- Location Name
- Oak Street Health MSO, LLC
- Location Address
- 30 W Monroe St., Suite 1200
- Location City
- Chicago
- Location State
- IL
- Location Zipcode
- 60603
- County
- Cook County
- LWIA #
- 7
- LWIA
- 7 - Chicago Cook Workforce Partnership
- Layoff Type
- State
- WARN Notice
- True
- Trade
- No
- Causes
- Other
- Reason
- Plant Closure
- Status
- Active
- Report Source
- Company Notification
- Industry
- Administrative, Support, Waste Management, and Remediation Services
- NAICS Codes
- 561110 - Office Administrative Services
- IEBS Id
- 20251117004
- Approximate Total # of Full-Time Employees
- 219
- Expected Layoff
- 219
- Revised Layoff
- 219
- Initial Date Reported
- 2025-11-07 00:00:00
- Last Report Date
- 2025-11-07 00:00:00
- Notification Date(s)
- 11/7/2025
- Unions Involved
- False
- Has public layoff assistance web page
- Yes
From the Illinois Department of Commerce and Economic Opportunity's WARN list, row 259, read Oct 3, 2026; first seen here Oct 3, 2026. Read with Big Local News's warn-scraper and warn-transformer.