The U.S. Attorney's Office in Manhattan 'has not made any claims or allegations against us or Mr. Icahn,' Icahn Enterprises LP said in a regulatory filing.

Activist investor Carl Icahn has stepped down from his informal advisory role on regulatory reform to President Donald Trump, he said on Friday.

Jim Cramer's take on stocks of interest to viewers includes positive comments on Berkshire Hathaway.

Best Buy's outstanding results show that investors are still getting it wrong and creating opportunities for others.

Carl Icahn exited his positions in Allergan and Nuance Communications during the first quarter of the year and acquired a stake in a Xerox spinoff after pressuring for a split.

Democratic lawmakers step up their campaign against Icahn, charging that the White House's designated agency ethics official previously provided paid legal services to the billionaire adviser to the Trump Administration.

The lawmakers asked three regulators to investigate whether the billionaire activist violated insider trading or other laws in the wake of his "actions in the market for renewable fuel credits."

CVR Energy had been in positive territory for most of the day.

The probe will focus on Icahn's activities in the U.S. biofuel blending credit market.

The 14-week decline in gasoline prices ended while two million people in Florida are still without power.

A new EV would radically change how cars are made and that could be a threat to the market leader.

The fast-food giant rarely tweaks its morning menu, but it's making two big additions as potentially an answer to a huge Wendy's move.