Diversified US miner and energy producer Freeport-McMoran Inc said it has filed to sell additional shares to raise up to $1 billion. The company also raised $1 billion in gross proceeds through the sale of 96.7 million shares that was announced on August 10.
The second offering comes less than a month after activist investor Carl Icahn disclosed an 8.5 percent stake in Freeport, calling the company "undervalued".