Keep Me Logged In
David Karp built his first business years before he could drive or legally drink in a bar with his clients. Then in 2007, at 21, Karp founded Tumblr, the blogging platform and social networking website.
Got a confidential news tip? We want to hear from you.
Sign up for free newsletters and get more CNBC delivered to your inbox
© 2019 CNBC LLC. All Rights Reserved. A Division of NBCUniversal
Data is a real-time snapshot *Data is delayed at least 15 minutes. Global Business and Financial News, Stock Quotes, and Market Data and Analysis.
Data also provided by