The co-founder’s departure comes just months after activist investor Carl Icahn acquired an 8.5 percent stake in the mining company.
The billionaire investor raised his offer to $18.50 per share earlier Monday, after a prolonged bidding war with Bridgestone over the U.S. auto parts company.
The move comes four months after activist investor Carl Icahn announced an 8 percent stake and placed two lieutenants on the company's board.
CFO David Herzog was one of four executives to announce an exit Thursday amid mounting pressure from activist investors to streamline operations.
The insurer is scrambling to shore up shareholder sentiment after billionaire investor Carl Icahn accused the management of lagging behind its peers.
Activist investor and billionaire Carl Icahn told AIG it was too large and unwieldy in an open letter calling for the insurance company to restructure.
The copper producer needs to sell a 10.6 percent stake in exchange for a mine-contract extension.
A national poll released Wednesday revealed that 10 percent of likely Republican primary voters called Donald Trump an "idiot," a "jerk," "stupid" or "dumb."
The Apple CEO said iOS offers enterprise customers more security and better partners and, overall, is a better product than Android.
Billionaire investor activist Carl Icahn ramped up criticism of the U.S. Federal Reserve, warning about the unintended consequences of ultra low interest rates on the economy and financial markets.
Investors will worry about a company sitting on such a large pile of money when it could be put to good use for expanding operations or returning money to shareholders.
EBay's market capitalization will shrink to around $34 billion following the spinoff.
Carl Icahn says technology giant Apple also presents an opportunity for investors.
The head of Apple's operations amped up speculation about his company's automotive ambitions, answering a question about what it should do with its $194B cash hoard.
The tactic that has driven trillions of dollars to shareholders has now come under fire from major pension officials.
Apple is now focused on creating an online TV service and a new version of the Apple TV set-top box, the Wall Street Journal reports. Both are expected to be announced in June.
When corporate executives bow to Wall Street demands, investment guru Laurence Fink writes, long-term economic health suffers.
“Finance is no longer an instrument for getting money into productive businesses, but getting money out of them.”
Cisco helped propel the blue-chip index, while gains from Apple and Expedia boosted the Nasdaq to its loftiest level since 2000.
Activist investor Carl Icahn sees $1 trillion in the iPhone maker, but others aren't so sure.
Icahn urged the tech giant to buy back more shares Wednesday, boosting his forecast for EPS by 20 times its value in 2015.
Activist investor and major Apple Inc shareholder Carl Icahn said the iPhone maker's stock should be trading at $216, far above its record high of $124.92 hit on Wednesday.
