| Balance Sheets | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 |
|---|---|---|---|---|
| Cash and cash equivalents | 36,586 | 48,915 | 43,121 | 40,790 |
| Accounts receivable, net of allowances of 3,889 and 3,893 as of march31, 2026 and december31, 2025, respectively | 33,345 | 38,353 | 35,836 | 42,843 |
| Inventory | 5,698 | 4,587 | 5,165 | 4,599 |
| Assets held for sale | 1,363 | NaN | NaN | NaN |
| Other current assets | 8,303 | 8,236 | 9,634 | 10,993 |
| Total current assets | 85,295 | 100,091 | 93,756 | 99,225 |
| Energy storage systems, net | 36,238 | 43,925 | 47,894 | 50,962 |
| Contract origination costs, net | 7,205 | 7,466 | 8,663 | 8,805 |
| Intangible assets, net | 117,286 | 123,028 | 129,169 | 135,158 |
| Operating lease right-of-use assets | 11,284 | 9,571 | 10,147 | 11,258 |
| Prepaid warranties and maintenance | NaN | 14,585 | NaN | NaN |
| Unbilled receivables, net | NaN | 84 | NaN | NaN |
| Receivable from spes (note 15) | NaN | 2,035 | NaN | NaN |
| Self-generation incentive program deposits | NaN | 147 | NaN | NaN |
| Investment in vies | NaN | 2,274 | NaN | NaN |
| Property and equipment, net | NaN | 615 | NaN | NaN |
| Project assets | NaN | 0 | NaN | NaN |
| Restricted cash | NaN | 1,786 | NaN | NaN |
| Other | NaN | 3,280 | NaN | NaN |
| Other noncurrent assets | 24,572 | 24,806 | 72,978 | 73,808 |
| Total assets | 281,880 | 308,887 | 362,607 | 379,216 |
| Accounts payable | 7,084 | 10,310 | 10,986 | 11,430 |
| Accrued liabilities | 25,667 | 26,875 | 29,913 | 30,422 |
| Accrued payroll | 5,136 | 9,131 | 8,389 | 6,257 |
| Financing obligation, current portion | 13,198 | 13,792 | 14,181 | 14,983 |
| Deferred revenue, current portion | 42,783 | 43,625 | 43,104 | 42,089 |
| Other current liabilities | 7,399 | 6,832 | 6,988 | 6,877 |
| Total current liabilities | 101,267 | 110,565 | 113,561 | 112,058 |
| Deferred revenue, noncurrent | 83,030 | 85,251 | 85,817 | 84,273 |
| Asset retirement obligation | 4,365 | 4,349 | 4,314 | 4,256 |
| Convertible notes, noncurrent | 183,800 | 183,594 | 183,389 | 183,186 |
| Senior secured notes, noncurrent | 134,266 | 128,796 | 127,609 | 126,709 |
| Financing obligation, noncurrent | 26,659 | 29,590 | 31,091 | 33,369 |
| Warrant liability | 2,710 | 5,121 | 6,089 | 1,899 |
| Lease liabilities, noncurrent | 11,000 | 9,860 | 10,653 | 11,644 |
| Other liabilities | 664 | 820 | 35,193 | 35,301 |
| Total liabilities | 547,761 | 557,946 | 597,716 | 592,695 |
| Common stock, 0.0001 par value 250,000,000 and 250,000,000 shares authorized as of march31, 2026 and december31, 2025, respectively 8,567,751 and 8,489,540 issued and outstanding as of march31, 2026 and december31, 2025, respectively | 1 | 1 | 1 | 1 |
| Additional paid-in capital | 1,241,228 | 1,239,263 | 1,236,905 | 1,234,571 |
| Accumulated other comprehensive income | 179 | 41 | 175 | 348 |
| Accumulated deficit | -1,507,672 | -1,488,747 | -1,472,768 | -1,448,977 |
| Total stem stockholders deficit | -266,264 | -249,442 | -235,687 | -214,057 |
| Non-controlling interests | 383 | 383 | 578 | 578 |
| Total stockholders deficit | -265,881 | -249,059 | -235,109 | -213,479 |
| Total liabilities and stockholders deficit | 281,880 | 308,887 | 362,607 | 379,216 |
STEM, INC. (STEM)
STEM, INC. (STEM)