Jan Koum (#163)
I want to do one thing and do it well.
- $ 17 B
- United States
- M
- 50 Years
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About Me
Jan Koum cofounded WhatsApp, now the world's biggest mobile messaging service, in 2009. Facebook bought the startup for $22 billion in cash and stock in 2014. He resigned as CEO of WhatsApp in 2018 and announced he would leave Facebook's board as well. Koum worked at Yahoo for nearly nine years before leaving to found WhatsApp. Now, he invests through his firm Newlands, which holds nearly 10 million shares of Facebook's parent company Meta and is building a portfolio of startups.
Achievements
Career Highlights
A snapshot of the defining milestones, leadership decisions, and breakthroughs that shaped Jan Koum’s rise and global influence.
Wealth Growth
Net Worth Growth Over Time
Tracking Jan Koum’s net worth journey over the years, highlighting key growth phases and financial milestones.
Current Net Worth: $17.0B
(May 4, 2026)
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