The net worths of Coinbase (NASDAQ:) CEO Brian Armstrong and Binance CEO Changpeng Zhao (CZ) have suffered heavy blows due to recent lawsuits by the United States securities regulator.

Armstrong’s net worth was slashed by $289 million and Zhao’s by $1.33 billion within a span of 30 hours after the Securities Exchange Commission (SEC) sued Binance on June 5 and then Coinbase on June 6, according to data from the Bloomberg Billionaires Index and Forbes.