| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 141,789a | 118,316a |
| Marketable securities | 378,864a | 277,143a |
| Prepaid expenses and other current assets | 9,060a | 2,950a |
| Total current assets | 529,713a | 398,409a |
| Long-term marketable securities | 210,416a | 0a |
| Property and equipment, net | 1,959a | 377a |
| Right-of-use asset, net | 11,365a | 2,217a |
| Other non-current assets | 498a | 401a |
| Total assets | 753,951a | 401,404a |
| Liabilities and stockholders' equity | — | — |
| Current liabilities | — | — |
| Accounts payable | 1,071a | 2,143a |
| Lease liability | 3,234a | 1,101a |
| Accrued expenses and other current liabilities | 24,255a | 17,314a |
| Total current liabilities | 28,560a | 20,558a |
| Long-term liabilities | — | — |
| Lease liability, net of current | 8,597a | 933a |
| Total liabilities | 37,157a | 21,491a |
| Stockholders' equity | — | — |
| Common stock | 1a | 0a |
| Additional paid-in capital | 1,021,794a | 503,354a |
| Accumulated other comprehensive income | 915a | 329a |
| Accumulated deficit | -305,916a | -123,770a |
| Total stockholders’ equity | 716,794a | 379,913a |
| Total liabilities and stockholders’ equity | 753,951a | 401,404a |