Tarek Mansour Net Worth

Tarek Mansour has an estimated net worth of $2.6 billion, according to Forbes Real-Time Billionaires, Tarek Mansour profile (figures as of October 20, 2026). That is up from $1.3 billion in 2026.

Tarek Mansour is the cofounder and CEO of Kalshi, a prediction markets company in the United States. He started the business with Luana Lopes Lara after they met while studying at MIT. Mansour studied mathematics and computer science there and finished in 2018. Before launching Kalshi, he interned at Goldman Sachs in 2016 and then worked as a trader at Citadel until 2018, experiences that later helped shape the company.

His wealth is tied to Kalshi, where Forbes says he owns an estimated 12% stake. The company lets users trade on outcomes tied to sports games, political elections, entertainment awards, and other events. Kalshi got federal approval to operate in the U.S. in 2020, then made history in 2024 when it won approval for legal presidential election contracts. In December 2025, a $1 billion funding round valued Kalshi at $11 billion and pushed Mansour into billionaire territory.

How Tarek Mansour built his fortune

Mansour’s money comes mainly from his stake in Kalshi, the prediction markets firm he cofounded in 2018 and now leads as CEO. The idea grew out of his background in markets and trading after time at Goldman Sachs in 2016 and Citadel until 2018. Kalshi launched in July 2021 and built a business around contracts tied to real-world outcomes, giving users a legal way to trade on what they think will happen.

Kalshi’s platform covers a wide mix of categories, including sports results, political elections, and entertainment awards. A big part of the company’s rise came from regulation. It received federal approval in 2020 to operate in the U.S. Then, in 2024, it became the first platform in more than a century to get federal approval for legal election contracts on a U.S. presidential race. That expanded Kalshi’s reach and helped raise Mansour’s profile.

Forbes net worth snapshot

Forbes estimated Mansour’s fortune at $1.3 billion on the 2026 World’s Billionaires List. That estimate followed a major jump in Kalshi’s value. In December 2025, the company reached an $11 billion valuation after a $1 billion funding round. Forbes also notes that Mansour owns about 12% of the business, so changes in Kalshi’s valuation have an outsized effect on his wealth.

As of October 20, 2026, Forbes put his net worth at $2.6 billion on its real-time billionaires tracker. The same core asset still drives the number: his ownership in Kalshi. Because his wealth is closely tied to one private company, the estimate can move with investor views of that business, especially after milestone moments like new approvals, funding rounds, and the company’s expanding role in prediction markets.