Amgen Inc., the world's largest biotechnology company, will buy back about 83.3 million shares at $60 each in a modified Dutch auction, amounting to about 9.5 percent of the stock outstanding.
About 98 million shares were tendered at or below $60 each, Thousand Oaks-based Amgen said Thursday. The $5 billion auction, announced last month, is part of a $10 billion buyback program.
