Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands |
3 Months Ended |
Mar. 31, 2016 |
Mar. 31, 2015 |
| Cash flow from operating activities |
|
|
| Net loss |
$ (17,745)
|
$ (5,291)
|
| Adjustments to reconcile net loss to net cash used in operating activities: |
|
|
| Stock-based compensation expense |
4,210
|
65
|
| Depreciation |
187
|
83
|
| Non-cash interest expense |
|
13
|
| Re-measurement of warrant to purchase redeemable securities |
87
|
|
| Change in fair value of preferred stock tranche asset or liability |
|
73
|
| Changes in fair value of anti-dilutive protection liability |
|
26
|
| Changes in deferred rent |
45
|
(21)
|
| Changes in operating assets and liabilities: |
|
|
| Accounts receivable |
(89)
|
|
| Prepaid expenses and other current assets |
(1,088)
|
(142)
|
| Other non-current assets |
2,248
|
|
| Accounts payable |
544
|
(1,612)
|
| Accrued expenses |
1,814
|
863
|
| Deferred revenue |
158
|
|
| Net cash used in operating activities |
(9,629)
|
(5,943)
|
| Cash flow from investing activities |
|
|
| Purchases of property and equipment |
(943)
|
(305)
|
| Changes in restricted cash |
(1,619)
|
|
| Net cash used in investing activities |
(2,562)
|
(305)
|
| Cash flow from financing activities |
|
|
| Proceeds from equipment loan, net of issuance costs |
|
791
|
| Proceeds from initial public offering of common stock, net of issuance costs |
98,182
|
|
| Proceeds from stock option exercises |
33
|
|
| Net cash provided by financing activities |
98,215
|
791
|
| Net increase (decrease) in cash and cash equivalents |
86,024
|
(5,457)
|
| Cash and cash equivalents, beginning of period |
143,180
|
10,623
|
| Cash and cash equivalents, end of period |
229,204
|
5,166
|
| Supplemental disclosure of cash and non-cash activities: |
|
|
| Conversion of preferred stock to common stock upon closing of the IPO |
199,915
|
|
| Capitalization of construction-in-progress related to facility lease obligation |
11,649
|
|
| Fixed asset additions included in accounts payable and accrued expenses |
526
|
113
|
| Initial public offering costs incurred but unpaid at period end |
497
|
|
| Reclassification of warrants to additional paid in capital |
376
|
|
| Accretion of redeemable convertible preferred stock to redemption value |
47
|
95
|
| Reclassification of liability for common stock subject to repurchase |
$ 3
|
|
| Accrual of final payment fee on equipment loan and debt discount |
|
$ 30
|