Nick Woodman is officially a stock market billionaire.
The GoPro founder and CEO has 53.04 million shares in the company, which debuted on the Nasdaq on Thursday morning. Based on the latest trading price, they are now worth about $1.66 billion.
Read MoreGoPro shares spike on debut
But Woodman's payday isn't just theoretical—it's also real cash. In addition to his shares, he already sold 3.56 million shares for $85 million.
Woodman's not the only one at GoPro enjoying a payday. Dozens of GoPro employees, executives, investors and Woodman family members also sold their stock Thursday. Michael Marks of Riverwood Capital sold 1.15 million shares and Edward Gilhuly of Sageview Capital sold 436,700 shares.