He served in a variety of strategy, operating, and finance positions, rising to senior vice president before being named the company's Chief Financial Officer (CFO) in March 2016.
[1][3][2] After the death of Sheldon Adelson on January 11, 2021, Dumont was elevated to president and Chief Operating Officer (COO) of Las Vegas Sands Corp, positioning him as the heir to the family's gambling empire.
[4] The NBA Board of Governors unanimously approved the sale of the controlling ownership interest of the Dallas Mavericks to Miriam Adelson and Sivan and Patrick Dumont on December 27, 2023.
[1] In late 2024, Dumont played a pivotal role in thawing relations between the NBA and China, which frayed following Houston Rockets General Manager Daryl Morey tweeted in support of the 2019–2020 Hong Kong protests.
[7] Dumont was the "ultimate decision maker" of the controversial blockbuster trade of star Luka Doncic to the Los Angeles Lakers on February 1, 2025, according to Mavericks general manager Nico Harrison.