Mark Zuckerberg Made $3 Billion After Testifying In Front of Congress Zuckerberg's testimony earlier this week caused investors to feel more confident in Facebook’s direction, sending share values up. As the founder and CEO of Facebook, Zuckerberg owns over 400 million shares, making his shares worth about $66 billion, according to CNN Money. Zuckerberg wasn’t the only person to make money, with anyone owning stock in Facebook also seeing a nice boost. Overall, Facebook’s stock has recovered to go up 4.5 percent since Tuesday, still below the all-time high that was reached prior to the Cambridge Analytica scandal.