Michael P. Sullivan (December 5, 1934 – November 20, 2024) was an American attorney and President and CEO of Dairy Queen.
[1] Sullivan practiced business and franchise law at Gray Plant Mooty for 25 years prior to becoming the CEO of Dairy Queen, including 10 years as the firm's managing officer.
[2] Sullivan guided Dairy Queen from 1987 to 2001, and battled McDonald's, Wendy's, and Burger King in the fast food market.
[4] Sullivan sold Dairy Queen to Warren Buffett and Berkshire Hathaway in 1998.
[2] Sullivan served as Director of Allianz Life Insurance Co. of North America and Adler Trust Company.