| Mar'20 | Dec'19 | Sep'19 | Jun'19 | Mar'19 | Dec'18 | Sep'18 | Jun'18 | Mar'18 |
|---|---|---|---|---|---|---|---|---|
Operating activities: | ||||||||
Net loss | ||||||||
-32,499 | -24,924 | -22,296 | 7,115 | -13,687 | 9,377 | 6,683 | 1,797 | 310 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||
Change in fair value of convertible preferred stock warrant liability | ||||||||
- | - | - | - | - | 0 | 68 | 187 | 322 |
Amortization of discount on marketable securities | ||||||||
347 | 338 | 263 | 436 | 526 | 322 | 65 | 0 | 0 |
Depreciation | ||||||||
502 | 495 | 502 | 489 | 346 | 76 | 69 | 61 | 46 |
Stock-based compensation | ||||||||
4,389 | 3,249 | 3,252 | 3,476 | 2,205 | 1,377 | 686 | 372 | 366 |
Deferred rent | ||||||||
0 | -272 | -273 | -252 | 472 | 277 | 468 | 0 | 0 |
Non-cash lease expense | ||||||||
131 | - | - | - | 0 | - | - | - | - |
Changes in operating assets and liabilities: | ||||||||
Prepaid expenses and other assets | ||||||||
462 | 2,507 | -499 | -1,137 | -471 | 1,489 | -8,875 | 10,093 | -520 |
Deferred revenue | ||||||||
0 | 0 | 0 | 0 | -5,160 | -16,137 | -13,564 | -2,987 | -11,449 |
Accounts payable | ||||||||
-227 | -473 | -1,557 | -17 | -35 | -310 | 1,504 | 821 | -981 |
Accrued liabilities | ||||||||
1,461 | 3,091 | 1,753 | 2,410 | -492 | 1,375 | 1,600 | -854 | -159 |
Lease liability | ||||||||
-420 | - | - | - | 0 | - | - | - | - |
Net cash used in operating activities | ||||||||
-27,472 | -21,679 | -18,383 | 13,922 | -16,406 | -5,776 | 6,324 | -10,696 | -11,025 |
Investing activities: | ||||||||
Purchases of property and equipment | ||||||||
178 | 17 | 241 | 537 | 1,376 | 612 | 87 | 215 | 153 |
Maturities of marketable securities | ||||||||
84,761 | 47,356 | 49,025 | 69,125 | 34,410 | 5,000 | 8,500 | 0 | 0 |
Purchases of marketable securities | ||||||||
37,745 | 243,581 | 43,137 | 57,114 | 36,536 | 111,615 | 39,199 | 8,485 | 0 |
Net cash provided by (used in) investing activities | ||||||||
46,838 | -196,242 | 5,647 | 11,474 | -3,502 | -107,227 | -30,786 | -8,700 | -153 |
Financing activities: | ||||||||
Net proceeds from equity offerings | ||||||||
- | - | - | - | - | - | - | - | 126 |
Proceeds from issuances of common stock upon exercise of options and participation in employee stock purchase plan | ||||||||
524 | 1,573 | 1,074 | 1,007 | 7 | - | - | - | - |
Net cash provided by financing activities | ||||||||
524 | 228,047 | 1,074 | 1,007 | 7 | -1,561 | 163,576 | -200 | 126 |
Net increase (decrease) in cash, cash equivalents and restricted cash | ||||||||
19,890 | 10,126 | -11,662 | 26,403 | -19,901 | -114,564 | 139,114 | -19,596 | -11,052 |
Supplemental disclosures of cash flow information | ||||||||
Non cash tenant improvement allowance used for leasehold improvements | ||||||||
0 | 0 | 0 | 0 | 8,324 | -8,324 | 8,324 | 0 | 0 |
Purchases of property and equipment accrued but not yet paid | ||||||||
0 | 0 | -172 | -121 | 293 | 578 | 49 | -129 | 144 |