Who gained/lost since 2025/01 (top 1000 richest)

# Worth ($M) 2025-01-08 Gain since ($M) Name Age Source Industries Citizenship Gender
191 15,742 15,989 -247 George Kaiser Graph only 82 Oil & gas, banking Energy United States M

Wikipedia

George Bruce Kaiser is an American billionaire businessman. He is the chairman of BOK Financial Corporation in Tulsa, Oklahoma. As of 2026, he was the 177th richest person in the world with an estimated net worth of $16 billion.

George Kaiser — Wikipedia