Merck Layoffs - WARN Act Notices

Merck has a WARN Act filing history stretching from November 2003 to November 2025, with 18 notices affecting 6,061 employees in total. Filings span New Jersey (16) and Pennsylvania (2). All classified notices are layoffs. The largest single filing affected 4,400 employees (November 2003). Filing activity has slowed, with only 3 notices in the past 12 months.

Under the WARN Act (Worker Adjustment and Retraining Notification Act), employers with 100 or more employees are required to provide 60 days advance notice before conducting plant closures or mass layoffs. These notices are filed with state labor departments and are public record.