FireEye Slides on $1.2 Billion Sale of Products Business FireEye says the transaction will separate FireEye's network, email and cloud security products from its cyberforensics unit, Mandiant Solutions. Author: FireEye ( FEYE) - Get Report stock was lower Thursday after the cybersecurity company said it agreed to sell its products business, including the FireEye name, for $1.2 billion in cash to a group led by Symphony Technology Group. Separately, FireEye said the board had authorized management to buy back as much as $500 million of stock. Shares of the Milpitas, Calif., company at last check were off 12% to $19.83. The transaction would separate FireEye's network, email and cloud security products from its cyberforensics unit, Mandiant Solutions.