Mark W. Sullivan, a former executive at General Motors , died on March 14, 2023 of complications from diabetes. Mr. Sullivan was born in 1953 in Naples, Italy, where his father was stationed as a U. S. diplomat. After living in Italy and the Netherlands, he spent some time in the United States before joining his family in Vientiane, Laos. He was educated at Williston Academy in Easthampton, MA, and Occidental College. He then spent a period working for USAID in the Philippines before obtaining an MBA from UCLA Anderson School of Management in 1979. Mr. Sullivan spent 28 years at General Motors, taking positions of increasing responsibility as a manager in benchmarking and strategic analysis; his final role was as Manager of Strategic Analysis, responsible for analyzing industry trends in the automotive industry, and providing advice on financial and corporate strategy. After he left General Motors, Mr. Sullivan built on his experience to provide independent consulting services in the automotive industry. He is survived by two sisters, Anne Sullivan and Margaret Sullivan, and six nephews and nieces, Brian Wallach, Thomas Wallach, Peter Wallach, Mercedes Plessmann, Sarah Ross, and Maximiliano Plessmann. A memorial service will be held shortly. For details, please contact Pixley Funeral Home, Rochester MI at 248-651-9641. Donations in his memory may be made to I Am ALS, https://iamals.org.