Report: WhatsApp founder's early Facebook departure could cost him $1 billion
May 01, 2018 at 14:27 PM EDT
Koum's departure date hasn't been announced. But if he leaves before May 15 he will forfeit 5.8 million Facebook shares, worth $997.5 million as of Monday's market close, Bloomberg reported, "unless his exit is categorized as an involuntary termination or resignation for good reason, regulatory filings show."