Layoffs Tracker›Johns Manville
WARN Act · Public Record
Johns Manville
WARN Act filings on record for Johns Manville. Each filing represents a notice submitted to a state workforce agency for a qualifying mass layoff or plant closing.
4
filings
504
employees affected (total)
CA
state
All filings
Ordered by announcement date, most recent first. Source links open the original state agency record.
| State | Location | Employees | Announced | Effective |
|---|---|---|---|---|
| CA | Glenn County | 90 | Feb 6, 2026 | Apr 19, 2026 |
| CA | Glenn County | 100 | Aug 30, 2024 | Nov 3, 2024 |
| CA | Glenn County | 54 | Jul 21, 2023 | Sep 25, 2023 |
| CA | Glenn County | 260 | Sep 7, 2021 | Nov 7, 2021 |
Where tech workers check this company
Were you laid off from Johns Manville?
Create a fully customized ATS-optimized resume and cover letter in seconds — matched to the specific role you’re applying for.
About this data: WARN Act filings are public records submitted to state workforce agencies when employers plan mass layoffs of 50+ employees or plant closings affecting 100+ workers. Some filings are later rescinded or modified — this tracker reflects raw filed data and may include filings that did not result in actual layoffs. Data is updated weekly from primary state agency sources.