New York: Jan Koum may be leaving Facebook Inc. but that didn’t stop him from getting stock awards this week worth $458 million.

The co-founder of WhatsApp, a Facebook messaging unit, had 2.5 million shares vest on Tuesday, with about half withheld to satisfy tax obligations, according to a regulatory filing. Koum’s Butterfly Trust sold the rest on Wednesday.

Koum, 42, confirmed in an 30 April Facebook post that he’s leaving the social-media giant, without saying exactly when that will happen. He won’t stand for re-election to the board at the firm’s 31 May annual meeting, the company said in a filing. A Facebook spokeswoman declined to comment.

Koum still owns 4.6 million restricted shares, which vest in August and November. The awards are contingent on him being employed through those dates unless his exit is categorized as an involuntary termination or resignation for good reason, regulatory filings show.

Facebook shares rose 0.6% to $183.80 at 10:51am in New York, bringing this year’s advance to 4.2%.

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