Apple Inc CEO Tim Cook earned roughly the same in 2013 as in 2012, but lost part of his performance-based stock award during a year in which intense competition and margin pressure bludgeoned the iPhone makers stock. Apples stock lost a quarter of its value over that one-year period. The company also advised shareholders to vote down a resolution by activist investor Carl Icahn, who proposed the iPhone maker buy back $50 billion worth of shares in fiscal 2014. Apple argued on Friday it has already returned $43 billion in dividends and share repurchases over the first six months of its roughly $100 billion capital return program.