Employers are legally required to alert employees along with state and local officials at least 60 days before a mass layoff in what’s known as a WARN notice. Mattel submitted the notice on Monday and said it expects laid-off workers will start leaving the company on May 19.

Mattel, the toy company behind Barbie and Hot Wheels, filed a notice with the state to lay off 120 employees at its El Segundo headquarters in the Los Angeles area.