Filing Flows › Astera Labs (ALAB) › Q4 2025
Astera Labs (ALAB) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Feb 20, 2026
Astera Labs (ALAB) reported revenue of $271M for the fourth quarter 2025 (Q4 2025), +92% from a year earlier and +17% from the quarter before. Operating margin was 24.7%, net earnings $45.0M (16.6% of revenue).
Astera Labs, Q4 2025: revenue $271M (+92% year over year), operating margin 24.7%, net earnings $45.0M, operating cash flow $95.3M. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $271M | +17% | +92% |
| Gross profit | $204M | +16% | +96% |
| Operating profit | $67.0M | +21% | 465× |
| Net earnings | $45.0M | -51% | +82% |
| Operating cash flow | $95.3M | +22% | +140% |
| Free cash flow | $76.6M | +16% | +216% |
What changed
Revenue was $270.6M in Q4 2025, up 92% year over year and up 17% from the previous quarter.
Gross margin was 75.6%, up 1.5 points from a year earlier. Operating profit was $67.0M, a 24.7% margin (up 24.6 points year over year). Of the extra revenue versus a year earlier, 52% reached operating profit, above the 0% margin then. Operating expenses grew 32% against revenue growth of 92%. The fastest-growing cost line was Research & development (+66%). Net earnings were $45.0M, up 82% year over year. The effective tax rate was 43.0%.
Operating cash flow was $95.3M (up 140% year over year), 212% of net earnings. Non-cash charges added back $2.8M of depreciation and amortization and $41.4M of share-based compensation. Working capital and other items added $6.1M. Capital expenditures of $18.7M left free cash flow of $76.6M.
Questions
What was Astera Labs' revenue in the fourth quarter 2025?
Astera Labs (ALAB) reported revenue of $271M for the fourth quarter 2025 (Q4 2025), +92% from a year earlier and +17% from the quarter before.
Was Astera Labs profitable in the fourth quarter 2025?
Operating profit was $67.0M (24.7% of revenue) and net earnings $45.0M.
Source: Astera Labs 10-K on SEC EDGAR.