A summary of stock option and RSA activity as of December 31, 2013, and changes during the year is presented below:
| Stock Options | RSAs | |||||||||||
| (Shares in thousands) | Shares | Weighted-Average Exercise Price | Shares | Weighted- Average Grant Price | ||||||||
| Outstanding as of | ||||||||||||
| December 31, 2012 | 31,861 | $ | 43.62 | 11,800 | $ | 40.31 | ||||||
| Granted | 463 | 61.76 | 3,867 | 60.13 | ||||||||
| Exercised/vested | (13,672) | 42.39 | (5,559) | 33.24 | ||||||||
| Forfeited | (22) | 39.25 | (530) | 50.31 | ||||||||
| Expired | (15) | 45.61 | ― | ― | ||||||||
| Outstanding as of | ||||||||||||
| December 31, 2013 | 18,615 | 44.98 | 9,578 | $ | 51.88 | |||||||
| Options vested and | ||||||||||||
| expected to vest as of | ||||||||||||
| December 31, 2013 | 18,600 | 44.98 | ― | ― | ||||||||
| Options exercisable as of | ||||||||||||
| December 31, 2013 | 16,842 | $ | 44.51 | ― | ― | |||||||