Market Basket announced a new management shakeup, promoting longtime executive Chuck Casassa to president while interim Chief Executive Officer Donald T. Mulligan prepares to retire after 43 years with the company.
Casassa, a 50-year veteran who began as a bagger in 1976, most recently served as director of operations. He spent more than three decades as a store manager before overseeing more than 25 stores as grocery supervisor, according to the company.
Mulligan, who had been chief financial officer for 27 years, was elevated to interim CEO in September 2025 after the board ousted former chief executive Arthur T. Demoulas. The company said Mulligan will remain as an advisor during the transition, but no successor has been named for the CEO role.
The changes come days after the Delaware Court of Chancery upheld Demoulas’ firing, ruling the board acted validly in suspending and later terminating him after a months-long dispute over governance and control of the privately held grocer.
Market Basket has faced repeated family-control battles over the years, most notably the 2014 conflict that triggered employee walkouts and customer boycotts before Demoulas was restored to leadership. This latest dispute has not generated the same level of public backlash, but it again underscores the governance tensions surrounding one of New England’s most closely watched retailers.
Based in Tewksbury, MA the chain operates about 90 stores across Massachusetts, New Hampshire, Maine and Rhode Island. Market Basket is known for its low-price, no-frills model and unusually loyal customer base, with estimates placing annual revenue around $8 billion.
