John A. McCarthy Jr., 65, entrepreneur, beloved father and grandfather, and citizen of Boston, died on Saturday, August 31st, 2024. He will be missed by all who knew his laugh and smile, empathy, generosity, and curiosity for life.

John was an avid and skilled golfer and an active member of Woodland Golf Club for 35 years. He was an accomplished cyclist and 6-time participant in the 192-mile Pan-Mass Challenge charity ride. John loved being physically active, sharing good food and wine with friends, playing paddle tennis, taking long walks on the Esplanade, skiing, and reading non-fiction books.

John was born in Evanston, IL and grew up in New Canaan, CT, graduating from New Canaan High School in 1977. He received a BS from Lehigh University in 1981 and an MBA from Harvard Business School in 1987.

John started his career in investment banking, before transitioning to the healthcare field where he held CEO, CFO, and board roles with medical technology companies. More recently, John co-founded LuxMed Systems in 2019, where he served as Chief Business Officer until his death.

John enjoyed sharing his wisdom and time, and was active in the start-up community, serving as an investor, advisor, and board member for early-stage companies. John was a great listener and believed in paying forward the mentorship he received from others as a young man.

John is survived by his former wife, Cathy McCarthy, daughters Erin and Kara, son-in-law Chris Moses, grandson Carson, sisters Claire Alexander, Susan Stetson, and Kelly McCarthy, and brother Thomas McCarthy, who all loved him very much.

A visitation will be held at 9am on Friday, September 13th at Saint Cecelia Parish in Boston, followed by a Funeral Mass at 10am. In lieu of flowers, memorial contributions may be made to the Dana-Farber Cancer Institute www.dana-farber.org in his honor.