Condensed Consolidated Balance Sheets - USD ($) $ in Thousands |
Mar. 31, 2016 |
Dec. 31, 2015 |
| Current assets: |
|
|
| Cash and cash equivalents |
$ 229,204
|
$ 143,180
|
| Accounts receivable |
1,108
|
1,019
|
| Prepaid expenses and other current assets |
1,874
|
786
|
| Total current assets |
232,186
|
144,985
|
| Property and equipment, net |
15,003
|
2,130
|
| Restricted cash and other non-current assets |
1,619
|
2,248
|
| Total assets |
248,808
|
149,363
|
| Current liabilities: |
|
|
| Accounts payable |
2,909
|
1,381
|
| Accrued expenses |
7,251
|
5,456
|
| Deferred rent, current portion |
62
|
88
|
| Total current liabilities |
10,222
|
6,925
|
| Deferred rent, net of current portion |
71
|
|
| Deferred revenue |
25,479
|
25,321
|
| Warrant to purchase redeemable securities |
|
289
|
| Construction financing lease obligation |
11,649
|
|
| Other non-current liabilities |
24
|
27
|
| Total liabilities |
$ 47,445
|
$ 32,562
|
| Commitments and contingencies (see note 6) |
|
|
| Stockholders’ equity (deficit) |
|
|
| Preferred stock |
|
|
| Common stock, $0.0001 par value per share: 195,000,000 shares and 92,000,000 shares authorized at March 31, 2016 and December 31, 2015, respectively; 36,608,136 and 4,869,829 shares issued, and 35,169,842 and 3,233,638 shares outstanding at March 31, 2016 and December 31, 2015, respectively |
$ 4
|
|
| Additional paid-in capital |
307,448
|
$ 5,234
|
| Accumulated deficit |
(106,089)
|
(88,348)
|
| Total stockholders’ equity (deficit) |
201,363
|
(83,114)
|
| Total liabilities, redeemable convertible preferred stock and stockholders’ equity (deficit) |
$ 248,808
|
149,363
|
| Series A-1 redeemable convertible |
|
|
| Stockholders’ equity (deficit) |
|
|
| Preferred stock |
|
21,137
|
| Series A-2 redeemable convertible |
|
|
| Stockholders’ equity (deficit) |
|
|
| Preferred stock |
|
59,027
|
| Series B redeemable convertible |
|
|
| Stockholders’ equity (deficit) |
|
|
| Preferred stock |
|
$ 119,751
|