| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 219,868a | 185,082a |
| Marketable securities | 1,281,629a | 410,269a |
| Prepaid and other assets | 40,793a | 15,956a |
| Total current assets | 1,542,290a | 611,307a |
| Property and equipment, net | 12,670a | 8,381a |
| Restricted cash | 2,795a | 295a |
| Right-of-use assets | 5,619a | 8,271a |
| Other assets | 521a | 301a |
| Total assets | 1,563,895a | 628,555a |
| Current liabilities | — | — |
| Accounts payable and accrued liabilities | 69,524a | 34,341a |
| Accrued compensation | 3,663a | 14,335a |
| Lease liabilities, current portion | 3,844a | 3,639a |
| Deferred revenue, current portion | 20,987a | 28,365a |
| Total current liabilities | 98,018a | 80,680a |
| Lease liabilities, net of current portion | 2,957a | 6,213a |
| Deferred revenue, net of current portion | 37,961a | 40,898a |
| Total liabilities | 138,936a | 127,791a |
| Stockholders’ equity | — | — |
| Common stock | 12a | 8a |
| Additional paid-in capital | 2,315,111a | 1,071,395a |
| Accumulated other comprehensive income | 2,902a | 125a |
| Accumulated deficit | -893,066a | -570,764a |
| Total stockholders’ equity | 1,424,959a | 500,764a |
| Total liabilities and stockholders’ equity | 1,563,895a | 628,555a |