The Philadelphia Phillies are primarily owned by John S. Middleton, who is the managing partner and principal owner with about a 48% stake. Middleton purchased a minority stake in 1994 and became the Phillies' controlling owner in 2016. The ownership structure is a limited partnership, so no single party owns a majority of the team. Other significant investors include Stanley Middleman (around 16.25% stake), the Buck family, the Montgomery family, Pat Gillick, and newly added investors such as Mitchell L. Morgan and Guntram J. Weissenberger Jr., who joined the ownership group in 2024. Middleton remains the managing partner and CEO, serving as the MLB control person for the Phillies. This broad ownership group helps share financial risks while maintaining Middleton’s leadership and controlling interest.