| Cash Flow | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 |
|---|---|---|---|---|
| Change in fair value of common stock warrant liability | NaN | 9,308 | 32,117 | 2,469 |
| Change in fair value of derivative liability | NaN | 0 | 4,818 | 2,493 |
| Net loss | -27,380 | -24,395 | -50,855 | -41,541 |
| Depreciation and amortization | 1,423 | 1,371 | 1,302 | 2,767 |
| Stock-based compensation expense | 6,554 | 5,260 | 3,960 | 4,745 |
| Amortization of debt discount and debt issuance costs | NaN | 0 | 1,602 | 3,765 |
| Asset impairment charge | 7,482 | NaN | NaN | NaN |
| Amortization of right-of-use asset | 1,011 | 875 | 786 | 1,472 |
| Loss on extinguishment of debt | NaN | 0 | -6,360 | NaN |
| Non-cash interest charges | NaN | 0 | -39 | 1,110 |
| Change in allowance for credit losses | NaN | 359 | 0 | -171 |
| Accretion of discounts on investments, net | 836 | 1,676 | NaN | NaN |
| Accounts receivable | 6,184 | 1,844 | -1,829 | 4,877 |
| Prepaid expenses and other current assets | 3,912 | 5,314 | 216 | 2,413 |
| Other non-current assets | 1,576 | -1,946 | 796 | 1,883 |
| Accounts payable | 1,669 | 1,137 | 514 | -1,433 |
| Accrued expenses and other current liabilities | -7,393 | 3,358 | 6,222 | -267 |
| Operating lease liabilities | -981 | -990 | -938 | -1,787 |
| Other non-current liabilities | 19 | 9 | 13 | 67 |
| Net cash used in operating activities | -30,104 | -10,596 | -2,957 | -40,470 |
| Purchase of property and equipment | 1,889 | 1,899 | 1,235 | 1,891 |
| Purchase of investments | 29,538 | 233,543 | NaN | NaN |
| Maturities of investments | 30,000 | NaN | NaN | NaN |
| Net cash used in investing activities | -1,427 | -235,442 | -1,235 | -1,891 |
| Proceeds from initial public offering, net of issuance costs | NaN | -397 | 332,784 | NaN |
| Proceeds from convertible notes offering, net of issuance costs | NaN | 0 | -44 | 72,813 |
| Proceeds from exercise of stock options | 3,342 | 857 | 1,011 | 1,430 |
| Repayment of term loan | NaN | 0 | 115,137 | NaN |
| Payments of exit, prepayment penalty and lender fees | NaN | 0 | 5,698 | 1,066 |
| Issuance of common stock under employee stock purchase plan | 3,288 | NaN | NaN | NaN |
| Payments of deferred offering costs | NaN | NaN | NaN | 2,028 |
| Payment of taxes related to vested restricted stock units | 473 | 510 | NaN | NaN |
| Net cash provided by financing activities | 6,157 | -50 | 214,944 | 71,149 |
| Effect of foreign exchange rates | 262 | -69 | 205 | 55 |
| Net increase (decrease) in cash and cash equivalents | -25,112 | -246,157 | 210,957 | 28,843 |
| Balance, beginning of period | 49,485 | 295,642 | 84,685 | 55,842 |
| Balance, end of period | 24,373 | 49,485 | 295,642 | 84,685 |
Heartflow, Inc. (HTFL)
Heartflow, Inc. (HTFL)