(Reuters) - Former cryptocurrency executive Caroline Ellison urged a federal judge not to send her to prison after she pleaded guilty over her role in the theft of $8 billion from customers of Sam Bankman-Fried's bankrupt FTX exchange.

In a court filing just before midnight on Tuesday, Ellison's lawyers told U.S. District Judge Lewis Kaplan in Manhattan that she deserves leniency for helping prosecutors build a successful criminal case against Bankman-Fried, her onetime boyfriend.