Facebook pays NO income taxes

[John V]

“The employees cash in stock options, and at that point there is tax deduction for the company,” Robert McIntyre of watchdog group Citizens for Tax Justice told Fox News during an interview. “Because even though it doesn’t cost Facebook a nickel, the government treats it as wages and they get a deduction for it. And usually it doesn’t wipe out companies whole tax bill, although many companies get big breaks from it.”

Note the bolded part. It's taxable income to the employees. The highest individual rate in 2012 was the same as the highest corporate rate. Some amount might have been lost because you had more people stepping through the brackets, but basically, tax was paid.