| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 167,146a | 284,829a |
| Marketable securities | 583,221a | 446,155a |
| Accounts receivable, net | 130,064a | 134,586a |
| Prepaid expenses and other current assets | 23,963a | 23,309a |
| Total current assets | 904,394a | 888,879a |
| Property and equipment, net | 88,631a | 84,578a |
| Goodwill | 625a | 625a |
| Long-term marketable securities | 0a | 81,418a |
| Other assets, non-current | 44,575a | 47,528a |
| Total assets | 1,038,225a | 1,103,028a |
| Liabilities and stockholders’ equity | — | — |
| Current liabilities | — | — |
| Accounts payable | 11,316a | 24,610a |
| Accrued compensation and employee benefits | 44,263a | 46,513a |
| Deferred revenue, current | 37,230a | 47,846a |
| Accrued and other current liabilities | 9,526a | 17,070a |
| Total current liabilities | 102,335a | 136,039a |
| Deferred revenue, non-current | 1,732a | 4a |
| Other long-term liabilities | 60,805a | 37,320a |
| Total liabilities | 164,872a | 173,363a |
| Stockholders’ equity | — | — |
| Class A common stock | 120a | 110a |
| Class B common stock | 3a | 3a |
| Additional paid-in capital | 1,963,726a | 1,740,174a |
| Accumulated other comprehensive loss | -563a | -385a |
| Accumulated deficit | -1,089,933a | -810,237a |
| Total stockholders’ equity | 873,353a | 929,665a |
| Total liabilities and stockholders’ equity | 1,038,225a | 1,103,028a |