| Wescom Financial WARN | February 19, 2026 | 1 | — | Corona, CA | — |
| Fender Musical Instruments WARN | February 6, 2026 | 60 | — | Corona, CA | — |
| Amazon WARN | January 28, 2026 | 160 | — | Corona, CA | — |
| Albertsons WARN | January 16, 2026 | 75 | — | Corona, CA | — |
| Ample Joy ABA Consulting WARN | December 1, 2025 | 100 | — | Corona, CA | — |
| Peabody Engineering & Supply WARN | October 24, 2025 | 19 | — | Corona, CA | — |
| Kaiser Foundation Hospitals WARN | October 6, 2025 | 2 | — | Corona, CA | — |
| Kaiser Foundation Hospitals WARN | October 6, 2025 | 1 | — | Corona, CA | — |
| Dart Container WARN | October 1, 2025 | 171 | — | Corona, CA | — |
| Thermal Structures WARN | September 2, 2025 | 447 | — | Corona, CA | — |
| Kaiser Foundation Hospitals WARN | August 25, 2025 | 1 | — | Corona, CA | — |
| Kaiser Foundation Hospitals WARN | August 25, 2025 | 2 | — | Corona, CA | — |
| Kaiser Foundation Hospitals WARN | August 18, 2025 | 2 | — | Corona, CA | — |
| Decra Roofing Systems WARN | July 28, 2025 | 57 | — | Corona, CA | — |
| Decra Roofing Systems WARN | July 28, 2025 | 4 | — | Corona, CA | — |
| International Flavors & Fragrances WARN | July 22, 2025 | 36 | — | Corona, CA | — |