When MrBeast and Mark Rober were on TODAY last week talking about their new project getting clean water to millions of people ...

Ken Griffin has the distinction of being one of history's most successful investors. The billionaire founded and leads ...

MrBeast reacted to Ken Griffin donating $2.25 million to his water fundraiser, Team Water, in a video that aired exclusively ...

YouTuber Jimmy "MrBeast' recently shared news of a major donation by American billionaire Ken Griffin that has topped ...

Billionaire Ken Griffin's investing acumen has turned Citadel LLC into the world's most profitable hedge fund, but he's not ...

Not even a billionaire and Palm Beach's largest property owner Ken Griffin can build a fence without permission from the town ...

Billionaire investor Ken Griffin is placing a major bet on a company that's far outperformed expectations this year.

The gift will support the under-construction Braman Comprehensive Cancer Center in Miami Beach and a freestanding Emergency ...

Billionaire philanthropist and Citadel CEO Ken Griffin has donated $15 million to Mount Sinai Medical Center to help expand cancer research and treatment in Miami Beach and Hialeah.

Griffin, who’s worth an estimated $30.5 billion, according to Bloomberg Billionaires Index, has slowly ramped up his involvement — and his election spending — over the last decade.

Ken Griffin, the founder and CEO of Citadel, on Nov. 5, 2014. “Richard Irvin is the best person to lead our state in this election cycle,” Griffin said. “This is not just about beating J.B.

Griffin, Palm Beach's largest property owner, requested the taller fence because of the natural grade on his estate's north property line.