Facebook CEO Mark Zuckerberg has fallen down the list of the world’s billionaires after losing billions amid outages on the social media website.

This comes after former Facebook employee Frances Haugen coming forward as the whistleblower who filed complaints with federal law enforcement. According to Bloomberg, Facebook stock dropped 5% on Monday (October 4), which took Zuckerberg’s net worth down to $120.9 billion. He now sits below Bill Gates at No. 5 on the Bloomberg Billionaires Index. Bloomberg also pointed out that Zuckerberg has lost around $19 billion since September, which is when the Wall Street Journal published a series of private Facebook research documents that are damning to the company.

As of time of publishing this article, Facebook and Instagram are still down, with Facebook telling users via Twitter they are “working to get things back to normal as quickly as possible.”