An employee at Perot Systems was sued by regulators on claims he illegally made “extremely large and profitable” bets on Perot based on confidential information about Dell’s $3.9 billion bid.

The Securities and Exchange Commission filed the lawsuit against Reza Saleh, 53, yesterday in a Dallas federal court. Saleh, an employee of Perot Investments reaped an $8.6 million profit, the suit said.