diamond game Coming Up This Morning: Ken Griffin, founder of Citadel; Sam Altman, co-founder of OpenAI; Serena Williams; and former President Bill Clinton

This year’s DealBook Summit will include interviews with some of the most powerful figures from Wall Street, Silicon Valley and Washington. Each has been at the heart of the news cycle this year, and they are likely to be at the center of some of the biggest events of 2025, too.

Here are the guests speaking this morning with Andrew Ross Sorkin, the founder of DealBook:

Ken Griffin is the founder and chief executive of Citadel and the founder and nonexecutive chairman of Citadel Securities. He is one of the country’s biggest donors to Republican political candidates.

Sam Altman is a co-founder and the chief executive of OpenAI, the start-up behind ChatGPT and DALL-E. The company set off the artificial-intelligence boom in 2022 and was valued at $157 billion in October.

Serena Williams, considered one of the greatest professional athletes ever, won 23 career Grand Slam tennis tournaments before retiring in 2022. She is the managing partner of Serena Ventures.

Bill Clinton was the president of the United States from 1993 to 2001. He also wrote the book “Citizen: My Life After the White House.”diamond game