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

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

In a move that proves the power of live TV and a little public pressure, YouTube megastar MrBeast just landed a $2.25 million ...

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.

Mr. Griffin had given $5 million to Mr. DeSantis’s re-election effort, and he told Politico that while Mr. DeSantis was not yet a White House candidate, “he has a tremendous record as governor ...

Ken Griffin has a few bones to pick when it comes to “Dumb Money” – among them the way the star-studded flick depicts his habits when it comes to expensive art.

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.

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