CARL ICAHN

Billionaire Carl Icahn raised his share in CVR Energy Inc. (NYSE: CVI) to 80 percent and is completing the replacement of the nine-member board of directors after winning the support of shareholders in the Texas-based refiner and marketer of transportation fuels.

LightSquared Inc., hedge-fund manager Philip Falcone?s national wireless venture, collapsed Monday and filed for protection in U.S. Bankruptcy Court in New York.

Shareholder activist Carl Icahn is expected to disclose his acquisition of a significant piece of Oklahoma City-based natural gas company Chesapeake Energy Corp. (NYSE: CHK), which has seen shares tumble amid a federal inquiry, a securities class-action suit and near-record-low natural gas prices. Both parties have yet to publicly confirm the deal.

For months, Yahoo has been in crisis. Market share fell. CEO Carol Bartz was fired. A Chinese tycoon said he?d buy the company.

Billionaire investor Carl Icahn has sold his $250 million debt holdings in Philip Falcone's telecom start-up LightSquared MOSAV.UL, while Falcone continues to negotiate with creditors to avoid a debt default, according to sources familiar with the matter.

Stocks were set to open little changed on Thursday as investors grappled with euro zone uncertainty, a raft of corporate earnings and softer-than-expected data on the domestic labor market.

Carl Icahn sued Amylin Pharmaceuticals Inc to block enforcement of a bylaw that prevents the billionaire investor from launching a proxy fight that could lead to a sale of the maker of diabetes drugs.

Carl Icahn sued Amylin Pharmaceuticals Inc to block enforcement of a bylaw that prevents the billionaire investor from launching a proxy fight that could lead to a sale of the maker of diabetes drugs.

Power producer Dynegy Inc. announced Thursday it settled disputes with creditors, putting one of its subsidiaries closer to emerging from bankruptcy protection.

Hedge fund manager Philip Falcone said in an interview on Wednesday he is seriously considering filing a voluntary bankruptcy for LightSquared, the struggling telecom startup in which his Harbinger Capital Partners is the majority owner.

The primary advocate group for former MF Global customers is undertaking an effort to convert the commodities broker's bankruptcy status to one that allows a more streamlined liquidation process, saying it would preserve more potential payback for customers.

Auto parts supplier Federal-Mogul Corp said on Monday Chief Executive Jose Maria Alapont will retire at the end of this month and the maker of powertrain and safety technology will create an independent aftermarket division.

Hedge fund manager Philip Falcone started 2012 with a series of setbacks, but there is one thing he can still count on this year: membership in the hyper-exclusive club of the world's richest people.

Motorola Solutions (NYSE: MSI) announced on Monday it will buy back $1.17 billion in stock from billionaire activist investor Carl Icahn.

Activist investor Carl Icahn announced Thursday he was sweetening a takeover offer for independent petroleum refiner CVR Energy Inc. (NYSE:CVI), proposing to buy all outstanding shares of the company, in cash, at $30 a share.

New Yahoo CEO Scott Thomson faces a new nightmare: activist shareholder Third Point Capital has upped its holdings and launched a proxy battle to control the company.

Even in defeat, Carl Icahn can change companies.

Oshkosh Corp. shareholders handed a defeat to activist investor Carl Icahn on Friday, electing at least 12 of the 13 management-backed nominees to the company's board.

Hedge fund manager Philip Falcone is looking at the possibility of selling some wireless assets to raise cash for his financially strapped telecom start-up LightSquared Inc, sources familiar with the matter said on Friday.

Billionaire investor Carl Icahn is buying some of the debt of hedge fund manager Philip Falcone's LightSquared Inc as the ailing wireless-network company runs short of cash, according to two sources familiar with the matter.

Billionaire investor Carl Icahn is buying some of the debt of hedge fund manager Philip Falcone's LightSquared Inc. as the ailing wireless-network company runs short of cash, according to two sources familiar with the matter.