The global headquarters of Ken's hedge-fund firm, Citadel, will be moving from Chicago to Miami, becoming the latest large company to leave Illinois.

Ken Griffin, founder and CEO of Citadel, speaks during the Milken Institute Global Conference.

The Milken Institute Global Conference will be held in Beverly Hills. The photo was taken by Patrick T Fallon.

AFP via Getty Images

In a letter to employees seen by Forbes, he said that he had moved to Miami and that his company would also move to Florida.

The governor of Florida has been criticized for going after Disney's tax status in the state.

The billionaire did not mention crime rates as a reason for the relocation but he told the Wall Street Journal in April that he was considering moving the company's headquarters because of incidents involving employees in the city.

The company expects a few hundred employees to be based in Florida by next year and some of the company's 1,000 Chicago-based employees are expected to stay.

Last month, Boeing said it would move its headquarters from Chicago to the Washington, D.C. area to be closer to federal regulators.

The governor of Illinois, a billionaire named J.B. Pritzker, has been feuding with the billionaire. We're getting to the point that if things don't change, we're not going anymore. The University of Chicago donated $25 million to the Crime Lab program for policing and public safety training, as well as backing the opponent in the upcoming governor's race.

Surprising Fact

According to the Chicago Police Department, crime is up 34% in Chicago so far this year. Murders are down, but robbery is up, burglaries are up and theft is up.

Big Number

$28.6 billion. Forbes has a real-time wealth tracker. $600 million has been donated to organizations in the Chicago area.

The billionaire GOP megadonor said he didn't appreciate the governor going after Disney. There is a magazine called "Forbes."

The country's richest Politician is being bet against by a group of billionaires.

The headquarters of Boeing will move to the DC metro area.