Moores was born in San Antonio, Texas—the eldest son of Jack and Katherine Broderick. Jack Broderick abandoned his wife, son John, and two younger sons in 1948. In 1950, Katherine wed again, to Cyrus "Red" Moores, a photographer with the Corpus Christi Caller newspaper, and her sons were given their stepfather's name. Red Moores, by then in insurance, moved the family to Houston, Texas in 1960, and John spent his high school years there. He left Texas A&M University before graduating and became a programmer for IBM. He later studied at the University of Houston where he earned his Bachelor of Science degree in economics and a Juris Doctor from the University of Houston Law Center.
Business
He founded BMC Software in Texas in 1980 and was the lead venture capital financier for Peregrine Systems in California starting in 1981 as well as ServiceNow, another California corporation founded in 2005. He served as a director of Peregrine from March 1989 to March 2003 and as chairman of the board from March 1990 through July 2000 and from May 2002 through March 2003, during which he cashed out between US$600 and US$630 million in Peregrine stock. He resigned as Peregrine chairman in February 2003 as part of the company's Chapter 11 reorganization. He also founded JMI Equity. In 1994 Moores purchased the San Diego Padres professional baseball team from Tom Werner. In 2009, he began the process of incrementally selling the Padres to a group of 12 investors, headed by Jeff Moorad for about $500 million. The deal fell through in 2012, and Moores instead sold the team for $800 million to a group led by Ron Fowler. He continues to operate in the IT service management market with continued investments through his venture capital firm JMI Equity.
John and Becky Moores met in a high school history class in Texas and married in 1963. They have four adult children, two biological and two adopted. In February 2008, Moores' wife Becky filed for divorce, citing irreconcilable differences, and demanding that Moores's numerous costly gifts to his mistress be accounted for. Moores gave up ownership of the family home on a golf course at Pebble Beach, California. The property overlooked the Pacific and the 18th fairway of the golf course. The divorce also prompted a major overhaul of the San Diego Padres roster, followed by the sale of Moores's majority ownership of the MLB team. During the divorce proceedings, Moores spent the majority of his time in Texas and refused to attend Padres and San Diego State games, while his wife regularly attended Padres games. In 2013, Moores married Dianne Rosenberg.
Honors and awards
1996: Donor of the Year by the National Association of Athletic Development Directors