Tarek Mansour's net worth is estimated at about $2.6 billion in June 2026. Forbes put his co-founder Luana Lopes Lara at about $2.6 billion in December 2025, when it named both Kalshi founders billionaires. Kalshi is unlisted, so every figure is a snapshot tied to funding rounds.
Mansour and Lopes Lara founded Kalshi in 2018, first under the name Kownig, and went through Y Combinator. Kalshi received a CFTC designated contract market licence in November 2020 and launched publicly in July 2021. In 2024 a federal court ruled against the CFTC in Kalshi's fight over election contracts.
Kalshi raised $1 billion at $11 billion in December 2025. A second $1 billion round, a Series F, valued the company at about $22 billion by May 2026. Reports in June 2026 mentioned talks at up to $40 billion, which had not closed.
Kalshi's 2025 revenue was estimated at about $260 million, with sports contracts making up about 89 percent of fee revenue.