Well, Facebook’s market cap is $347.21 billion at the time of me writing this. If Mark Zuckerberg owns 1% of that, that’s $3.4721 billion. However, it appears that Mark Zuckerberg actually owns over 475 million shares of Facebook [1], which at $12…
https://www.quora.com/How-much-is-Zuckerbergs-1-share-of-Facebook-stocks-worth