Eight months and $16B later, Facebook now owns WhatsApp

For the last eight months we may all have been operating under the assumption that WhatsApp had become a key component of Facebook’s global messaging strategy, but until Monday, Facebook didn’t officially own the company. A filing with the SEC on Monday makes WhatsApp the legal property of Facebook, finalizing the $16 billion cash-and-stock acquisition.

WhatsApp founder and CEO Jan Koum will remain CEO of WhatsApp, but he will also take a place on Facebook’s board. Like Mark Zuckerberg, Koum will only draw a $1 annual salary and won’t be eligible for a Facebook’s bonus program. Instead he gets 24,853,468 restricted shares of [company]Facebook[/company] stock, which is more than half of the 46 million restricted shares awarded to WhatsApp employees.

Koum’s shares in Facebook will vest over the next four years as long as he stays with the company. At Facebook’s current price they would be worth about $1.9 billion. And that’s just executive compensation. The buyout itself transferred 117.8 million shares of Class A stock and $4.59 billion in cash to WhatsApps’s founders and investors.