did not include the newspaper's headquarters, which was retained by Manchester and would be leased by the newspaper. On May 26, 2015, the newspaper announced it would lay off 178 employees, representing about thirty percent of the total staff, as it consolidated its printing operations with the Times in Los Angeles. In 2016, The San Diego Union Tribune acquired the monthly entertainment magazine Pacific San Diego. On June 13, 2015, at 10:02 p.m. PDT the final run of The San Diego Union Tribune was printed at the San Diego headquarters in Mission Valley began. It was to print the Sunday edition newspaper for June 14, 2015. The following Monday's newspaper would be printed at the Los Angeles Times location. The dismantling of the printing presses in Mission Valley began in mid-September 2015. Purchase by Patrick Soon-Shiong In February 2018, a deal was reached to sell the Union-Tribune to Patrick Soon-Shiong, a medical doctor who has made billions as a biotech entrepreneur. The deal also included the Los Angeles Times and multiple community newspapers. The sale closed on June 18, 2018. Headquarters The newspaper was originally located in Old Town San Diego, and was moved to downtown San Diego in 1871. In 1973, it moved to a custom-built, brick and stone office and printing plant complex in Mission Valley. The newspaper moved back downtown in May 2016, to offices on the 9th through 12th floors of a tower at 600 B Street. The Union-Tribune was to be the named tenant of the building, replacing Bridgepoint Education and, before that, Comerica. Awards Pulitzer Prizes 1979, Breaking News Reporting: San Diego Evening Tribune for its coverage of the PSA Flight 182 jetliner collision with a small plane over North Park. 1987, Editorial Writing: San Diego Evening Tribune editorial writer Jonathan Freedman for his editorials urging passage of the first major immigration reform act in 34 years. 2006, National Reporting: The San Diego Union-Tribune and Copley News Service (with notable work by Marcus Stern and Jerry Kammer), for their disclosure of bribe-taking that sent former Rep. Randy "Duke" Cunningham to prison "in disgrace". They also received the George Polk Award for these stories. 2009, Editorial Cartooning: Steve Breen "for his agile use of a classic style to produce wide ranging cartoons that engage readers with power, clarity and humor". Criticisms Copleys and Platinum Equity Under the Copleys' ownership, the newspaper had a reliably conservative