NEWARK, N.J. – Mars Wrigley will permanently close its U.S. headquarters and Newark market hub, eliminating 307 positions as the company consolidates corporate operations at its expanded campus in Chicago. The job cuts will begin on October 16, according to a Worker Adjustment and Retraining Notification (WARN) filed with the State of New Jersey.

The company plans to complete the phaseout of its Newark corporate operations by December 2027, marking the end of its headquarters presence in the city. Mars Wrigley said the move is part of a broader effort to centralize corporate functions following a $100 million expansion of its Chicago headquarters.

WARN filing confirms layoffs

The WARN notice submitted to New Jersey officials confirms that 307 employees in Newark will be affected by the closure. Employee separations are scheduled to begin on October 16 as the company starts winding down its local headquarters and market hub operations.

The phased closure will continue through next year until the Newark corporate offices are fully shuttered by December 2027. The filing provides advance notice to workers and state agencies as required under federal and state labor laws.

Manufacturing operations remain in New Jersey

Although the Newark headquarters is closing, Mars Wrigley said it will continue operating its manufacturing and business facilities in Hackettstown. The Warren County location remains one of the company’s major production sites and is not included in the announced layoffs.

The consolidation reflects Mars Wrigley’s decision to relocate corporate functions to Chicago, where it recently invested $100 million to expand its headquarters campus. The company has not announced additional layoffs affecting its New Jersey manufacturing workforce.

Why it matters

The closure represents one of the larger corporate workforce reductions announced in Newark this year and will eliminate hundreds of office-based positions. While Mars Wrigley will retain its manufacturing footprint in Hackettstown, the loss of its headquarters further shifts major corporate operations from New Jersey to Chicago.

What happens next

The first employee separations are scheduled to begin on October 16. Mars Wrigley expects the transition to continue through December 2027, when the Newark headquarters and market hub will be fully closed.

About this report

This article is based on a New Jersey WARN notice filed by Mars Wrigley and company statements regarding the consolidation of its U.S. corporate operations.