3M Layoffs & WARN Notices — 4,195 Workers Affected
All WARN Act mass layoff and plant closure notices filed by 3M.
Data updated
24
Total Notices
4,195
Workers Affected
10
States
2001
First Filing
2023
Latest Filing
Data Insights
Industry Breakdown
Workers affected by industry sector
Layoff Types
Workers affected by notice type
3M WARN Act Filings
| Company | Location | Employees | Notice Date | Type |
|---|---|---|---|---|
| 3M - HQ | Maplewood, MN | 1,100 | ||
| 3M's Wonewok | Park Rapids, MN | 40 | ||
| 3M Company DBA 3M Oral Care | Monrovia, CA | 464 | Layoff | |
| 3M | Irvine, CA | 264 | Layoff | |
| 3M-Research Blvd | Austin, TX | 113 | ||
| Irwin Industries, Inc.(3M Moreno Valley) | Corona, CA | 1 | Closure | |
| 3M | Elyria, OH | 136 | ||
| 3M | Milford, OH | 135 | ||
| 3M | Brookville, OH | 75 | ||
| 3M | Enfield, CT | 69 | Closure | |
| 3M, DBA Ceradyne ACO (Ceradyne, Inc.) | Louisville, KY | 93 | Layoff | |
| 3M Company (Western Distribution Center) | Ontario, CA | 132 | ||
| 3M | Ardmore, OK | 125 | ||
| 3M | Columbia, MO | 21 | Layoff | |
| 3M | Simi Valley, CA | 109 | ||
| 3M | Petaluma, CA | 105 | ||
| 3M Precision Optics | Cincinnati, OH | 106 | ||
| 3M Precision Optics | Cincinnati, OH | 78 | ||
| 3M - Columbia | Columbia, MO | 240 | Layoff | |
| 3M | Belle Mead, NJ | 87 |
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3M Layoff FAQ
Is 3M laying off in 2026?
3M has no 2026 WARN notices on record. The most recent WARN Act filing was in 2023.
How many layoffs has 3M had?
3M has filed 24 WARN Act notices affecting a total of 4,195 workers across 10 states.
When was 3M's most recent layoff?
3M's most recent WARN Act filing was on 2023-06-30.
What states has 3M laid off workers in?
3M has filed WARN Act notices in: California, Connecticut, Kentucky, Minnesota, Missouri, New Jersey, Ohio, Oklahoma, Pennsylvania, Texas.
What is the WARN Act?
The Worker Adjustment and Retraining Notification (WARN) Act is a federal law that requires employers with 100 or more employees to provide 60 calendar days' advance notice of plant closings and mass layoffs.
How do I get notified about 3M layoffs?
Subscribe using the form above to receive free daily email alerts whenever new WARN Act notices are filed. You can also set up custom filters and webhooks with a paid API plan at warnfirehose.com/pricing.
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SEC Filings & Hiring Signals
Cross-dataset signals for 3M: SEC 8-K event filings and H-1B labor condition applications often move before and after WARN notices.
8-K — 8-K
Filed 2026-07-21
8-K — 8-K
Filed 2026-06-08
8-K — 8-K
Filed 2026-05-13
8-K — 8-K
Filed 2026-05-06
8-K — 8-K
Filed 2026-04-21
419 H-1B LCA petitions filed (FY2010–FY2026) — check H-1B layoff risk →
Related Industries
Browse layoff data for industries where 3M operates:
States with Filings
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