Quick Answer
ESS Tech, Inc. reported R&D Expense of $8.30 million for fiscal year 2025.
ESS Tech, Inc. R&D Expense — Annual History
| Fiscal Year | R&D Expense | YoY Change |
|---|---|---|
| 2025 | $8.30M | -29.5% |
| 2024 | $11.77M | -72.4% |
| 2023 | $42.63M | -40.8% |
| 2022 | $71.98M | +137.8% |
| 2021 | $30.27M | +134.8% |
| 2020 | $12.90M | — |
Quarterly R&D Expense
| Quarter Ending | R&D Expense | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $1.03M | -61.7% | -27.9% |
| June 30, 2025 | $1.42M | -49.8% | -42.5% |
| March 31, 2025 | $2.48M | -30.1% | -7.7% |
| September 30, 2024 | $2.68M | +66.8% | -5.4% |
| June 30, 2024 | $2.84M | -85.4% | -20.0% |
| March 31, 2024 | $3.55M | -80.0% | +120.4% |
| September 30, 2023 | $1.61M | -92.0% | -91.7% |
| June 30, 2023 | $19.45M | +20.3% | +9.7% |
- ESS Tech, Inc. showed a decrease of -29.5% in R&D Expense compared to the prior fiscal year.
- Over the 2020–2025 period, ESS Tech, Inc.’s r&d expense has declined by 35.7% (from $12.90 million to $8.30 million).
- The most recent figure is from ESS Tech, Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on March 5, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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