Tech Elon Musk now holds world record for largest loss of wealth ever, Guinness says January 10, 2023January 10, 2023 Natalie Neysa Alund, USA TODAY Comments Off on Elon Musk now holds world record for largest loss of wealth ever, Guinness says Prior to Musk, the record for largest personal fortune wiped out was set by Softbank founder and CEO Masayoshi Son in 2000, who lost $58.6 billion.