SES AI Corporation (SES) Cash Flow Statement

In a normal loss-making company, cash losses typically exceed accounting losses due to ongoing cash costs not reflected in net income; SES AI's pattern is inverted and erratic, with operating cash flow exceeding net losses in periods like 2024Q4 (ratio 0.36) and falling short in others such as 2025Q1 (ratio 1.84). The inconsistency largely tracks large, volatile working capital swings — from -$8.0M in 2025Q1 to +$8.3M in 2024Q4 — rather than any stable operational conversion dynamic. For an investor, this means the gap between net income and operating cash flow offers limited signal about underlying cash generation quality at this stage of the company's development.

The burn reduction appears driven by declining R&D and stock-based compensation costs rather than genuine cash generation — gross profit of ~$1.1M in 2026Q2 still cannot cover the $19.2M operating loss, as noted in prior analysis. FCF margins have tightened from -6.1% (2024Q4) to the -2% to -3% range in recent quarters, but this ratio improvement is partly an artifact of a shrinking cost base rather than a widening revenue denominator. Investors should treat the narrowing burn as cost containment rather than a trajectory toward self-funded operations.

When D&A consistently exceeds capex, it can suggest a company is running down existing productive assets faster than it replaces them, which for a battery manufacturer may indicate that pilot-scale or pre-commercial facilities are being harvested rather than upgraded. The sharp decline in quarterly capex — from -$6.8M in 2024Q1 to -$330K in 2026Q1 — may signal a deliberate shift toward capital-light operations ahead of commercialization, or it could reflect deferred investment that will need to be funded later to scale production. Either interpretation warrants monitoring, as the sustainability of this capex posture is unclear from the data alone.

The divergence is largely explained by stock-based compensation, which contributed roughly $33M in non-cash add-backs over the ten-quarter window, and by depreciation charges that consistently exceed capital spending. While this cushion reduces immediate liquidity pressure, it is not self-funding — the cumulative operating cash burn is still substantial relative to a business generating only $5.1M in quarterly revenue, and the cushion narrows as SBC declines. Investors should recognize that the negative gap between accounting losses and cash burn is itself shrinking, which could tighten liquidity headroom faster than headline loss figures alone would suggest.