Lawrence Joseph Ellison (born August 17, 1944) is an American business magnate and investor. He is the co-founder, executive chairman, chief technology officer (CTO) and former chief executive officer (CEO) of the American computer technology company Oracle Corporation. As of February 2023, he was listed by Bloomberg Billionaires Index as the sixth-wealthiest person in the world, with an estimated fortune of $102.6 billion. Ellison is also known for his 98% ownership stake in Lanai, the sixth-largest island in the Hawaiian Archipelago.