The judge who will sentence Raj Rajaratnam for insider trading will hold a hearing next week to determine the amount of losses from his crimes, a court spokeswoman said.

US District Judge Richard Holwell in Manhattan is set to sentence Rajaratnam, the co-founder of Galleon Group, on Oct. 13. Rajaratnam, 54, was convicted in May on all 14 criminal counts against him. Prosecutors said he gained $63.8 million by trading with inside information in 11 stocks, including Goldman Sachs Group, Intel, Google, ATI Technologies and Clearwire.

Galleon earned $53.8 million in profit and avoided losses of $9.9 million, an FBI agent testified at Rajaratnam’s trial. His lawyers argued in court papers filed Sept. 9 that the government’s loss calculation, used to support its recommendation that Rajaratnam be sentenced to as much as 24 1/2 years in prison, “massively overstates the seriousness of the offense.”

Prosecutors have asked for a prison term of at least 19 years and seven months, calling Rajaratnam “the modern face of illegal insider trading.”