Peter Seidler

Peter Seidler (November 7, 1960 – November 14, 2023) was an American businessman. He was the chairman of the San Diego Padres of Major League Baseball.

Seidler was born in Alhambra, California, on November 7, 1960. He was the grandson of Walter O'Malley and nephew of Peter O'Malley, who had owned the Brooklyn (later renamed Los Angeles) Dodgers of Major League Baseball (MLB). He earned a bachelor's degree in finance from the University of Virginia and a Master of Business Administration from the University of California, Los Angeles. While at Virginia, he joined the Delta Upsilon Fraternity.

Seidler founded a private equity firm, Seidler Equity Partners in Marina del Rey, California, in 1992. He was the managing partner. The firm had an estimated $1.8 billion in assets under management in 2020 and $3.5 billion in 2023.

In 2012, Seidler, his uncle Peter, and Ron Fowler formed the O'Malley Group, which purchased MLB's San Diego Padres from John Moores. On November 18, 2020, MLB approved the transfer of the role of chairman from Fowler to Seidler, who purchased part of Fowler's stake in the team to become the largest stakeholder.

Seidler increased the Padres' payroll to $214 million for the 2022 season, which was the sixth-highest in MLB. The Padres reached the 2022 National League Championship Series. The Padres payroll increased to $237 million for the 2023 MLB season, the third-highest in MLB. He authorized the acquisitions and contract extensions to star players, including Xander Bogaerts, Yu Darvish, Manny Machado, Fernando Tatís Jr., Juan Soto, Josh Hader, and Joe Musgrove.

Seidler and his wife, Sheel, had three children. They lived in La Jolla, California.

Seidler had type 1 diabetes. He also survived two bouts with non-Hodgkin lymphoma.

In September 2023, Seidler announced that he had undergone a medical procedure which would prevent him from attending any further games in the 2023 season. He died in San Diego on November 14, 2023, at the age of 63.