Justice Department says total recovery from Ponzi scheme has now covered more than 88% of losses.
Prosecutors allege that Neil Phillips artificially drove the dollar-rand exchange rate lower to trigger a $20 million option payout.
Regulator says it is the largest fraudulent scheme involving the cryptocurrency in any CFTC case.
Nathaniel Chastain was arrested for what the Justice Department calls the ‘first ever digital asset insider trading scheme.’
Andrew Middlebrooks allegedly embezzled money from investors to pay for jewelry, credit card bills and his wife’s business.
The owners of EmpowerCoin, ECoinPlus and Jet-Coin face charges of wire fraud, money laundering and obstruction of justice, among others.