Facebook shares took a big hit Monday, shaving $5.3 billion off of Mark Zuckerberg’s net worth.
The stock tumbled 7% Monday on news that data firm Cambridge Analytica, which had ties to Trump’s campaign, reportedly accessed information from about 50 million Facebook users. This is the stock’s biggest drop, on a percentage basis, in more than five years.
Zuckerberg holds about 400 million shares of Facebook through various entities that he controls, according to a filing last week. Shares were down $13.08 in midday trading.