ESS Tech financials
$0.1800+1.98%
Close Sep 29, 2026 · split-adjustedRevenue
Net income
Income statement & cash flow
| Fiscal year | FY25 Dec 31 | FY24 Dec 31 | FY23 Dec 31 | FY22 Dec 31 | FY21 Dec 31 |
|---|---|---|---|---|---|
| Revenue | $1.6M | $6.3M | $7.5M | $894.0K | $0.00 |
| Gross profit | -$27.7M | -$45.4M | -$13.0M | $894.0K | $0.00 |
| Gross margin | −1748.1% | −720.5% | −171.8% | 100.0% | — |
| Operating income | -$57.4M | -$89.8M | -$85.9M | -$105.5M | -$60.6M |
| Net income | -$63.4M | -$86.2M | -$77.6M | -$78.0M | -$477.1M |
| Net margin | −4007.6% | −1369.7% | −1028.9% | −8721.4% | — |
| Diluted EPS | $-4.34 | $-7.32 | $-7.27 | $-7.65 | $-85.95 |
| EBITDA | -$51.7M | -$85.1M | -$79.4M | -$104.0M | -$60.0M |
| Operating cash flow | -$50.3M | -$72.2M | -$54.9M | -$81.6M | -$51.8M |
| Free cash flow | -$53.7M | -$79.5M | -$60.7M | -$95.8M | -$54.6M |
| Diluted shares | 14.6M | 11.8M | 10.7M | 10.2M | 5.6M |
Balance sheet
| Period end | Dec 31 | Dec 31 | Dec 31 | Dec 31 | Dec 31 |
|---|---|---|---|---|---|
| Cash & equivalents | $14.5M | $13.3M | $20.2M | $34.8M | $238.9M |
| Short-term investments | $7.6M | $18.3M | $87.9M | $105.0M | $0.00 |
| Total debt | $17.3M | $0.00 | $0.00 | $1.9M | $3.8M |
| Total assets | $51.2M | $71.8M | $143.2M | $173.6M | $250.2M |
| Total liabilities | $42.6M | $42.9M | $39.9M | $36.6M | $45.0M |
| Shareholders' equity | $8.6M | $28.9M | $103.4M | $137.0M | $205.2M |
From SEC filings via Massive. Fiscal periods follow the company's own calendar; free cash flow is operating cash flow minus capital expenditure.
Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology