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WhatsApp founder sold company for $19 billion - Business Z
Start Moves

WhatsApp founder sold company for $19 billion

By Piper Blackwell October 15, 2026
WhatsApp founder sold company for $19 billion - whatsapp founder
The acquisition of an iPhone in 2009 marked a significant turning point for Koum, as he recognized the potential of Apple’s App Store and began to explore new ideas.

Jan Koum, the co-founder of WhatsApp, had a humble beginning, relying on food stamps to support his family before selling the messaging service to Facebook for $19 billion.

From Humble Roots to Silicon Valley

Koum’s childhood was marked by financial struggles in a rural village near Kyiv, Ukraine, where his father worked in construction and his mother was a homemaker, living in a house without hot water, and experiencing the restrictions of life in the Soviet Union.

Food Stamps to Silicon Valley

At the age of 16, Koum and his mother relocated to Mountain View, California, with the help of government assistance, which provided them with a small apartment and food stamps, while Koum worked at a grocery store and his mother took on babysitting jobs to make ends meet.

Despite the challenges they faced, including his mother’s cancer diagnosis and subsequent reliance on disability benefits, Koum went on to lose both parents by 2000, as reported by Forbes, but he developed a strong interest in computers, teaching himself computer networking using second-hand manuals and later enrolling at San Jose State University, where he also worked as a security tester at Ernst & Young.

In 1997, Koum met Brian Acton while working on a project at Yahoo, and they formed a friendship that would eventually lead to them becoming colleagues, with Koum leaving university to focus on infrastructure engineering at the internet company.

After several years at Yahoo, both Koum and Acton became disillusioned with their work and left the company in 2007, embarking on a journey through South America to explore new opportunities, and although they were rejected by Facebook after applying for jobs, their passion for technology remained unwavering.

The iPhone Changed Everything

The acquisition of an iPhone in 2009 marked a significant turning point for Koum, as he recognized the potential of Apple’s App Store and began to explore new ideas.

Koum’s initial vision for WhatsApp was to create an app that would allow users to display their status next to their names in their phone contacts, indicating whether they were busy, working out, or unavailable, and although the early versions of the app were unreliable, Acton encouraged Koum to persist.

The incorporation of WhatsApp in February 2009 was followed by a period of struggle, but the introduction of push notifications from Apple helped guide the product’s direction, and Koum’s decision to add messaging to the app marked a significant shift, as WhatsApp began to gain users and evolve into a real-time communication tool.

WhatsApp’s use of phone numbers made it easy for people to connect with their existing contacts, and its ability to facilitate communication over the internet, regardless of geographical location, set it apart from traditional texting services.

In February 2014, Facebook agreed to acquire WhatsApp for a reported $19 billion, a deal that included $4 billion in cash, $12 billion in Facebook shares, and $3 billion in restricted stock units, making it one of the most significant technology acquisitions at the time.

A $19 Billion Deal Signed in a Social Services Office

For Koum, the signing of the deal held personal significance, as he chose to sign the agreement at the same social services office where he had once collected food stamps as a teenager, as reported by Forbes.

By 2017, WhatsApp had grown into a global communications platform with over one billion users worldwide, according to CNBC, a sign of the app’s rapid growth and widespread adoption.

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