Company / Free Cash Flow
ESS Tech, Inc. Free Cash Flow History
FY2021-FY2025 · Annual data · Source: SEC filings
At a glance
Latest annual filing availableLatest Free Cash Flow
-$53.7M
FY2025
5-year range
-$95.8M / -$53.7M
FY2021-FY2025
Trend
+32.5%
vs FY2024
Sector context
Sector data unavailable
Latest sector comparison
What the data says
Free Cash Flow has fluctuated over the past 5 years, ranging from -$96M in FY2022 to -$54M in FY2025.
Based on SEC 10-K filings.
-$54M in FY2025.
Improved from -$61M to -$54M over the past 2 years.
Free Cash Flow over time
Growth rates
- 3-Year CAGR
- -
- 5-Year CAGR
- -
- 10-Year CAGR
- -
Key checks
Key Insights
- In FY2025, free cash flow increased 32.5% year-over-year.
- Lowest free cash flow in the period was in FY2022.
Company context
Key Data Points
- Low Piotroski F-Score: 1/9 (multiple financial health concerns)
- Altman Z-Score -17.36 (distress zone, below 1.8 threshold)
- High earnings quality (cash-backed earnings)
Data sourced from SEC EDGAR filings. Not investment advice.
Annual data
| Year | Free Cash FlowValue | YoY GrowthYoY |
|---|---|---|
| FY2025 | -$53.7M | +32.5% |
| FY2024 | -$79.5M | -31.0% |
| FY2023 | -$60.7M | +36.7% |
| FY2022 | -$95.8M | -75.4% |
| FY2021 | -$54.6M | - |
As of FY2025 · SEC Form 10-K · Last checked Jun 22, 2026