Filing Flows › Ambiq Micro (AMBQ) › Q4 2025
Ambiq Micro (AMBQ) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Mar 5, 2026
Ambiq Micro (AMBQ) reported revenue of $20.7M for the fourth quarter 2025 (Q4 2025), +2% from a year earlier and +14% from the quarter before. Operating margin was -57.7%, net loss $10.7M (51.5% of revenue).
Ambiq Micro, Q4 2025: revenue $20.7M (+2% year over year), operating margin -57.7%, net loss $10.7M, operating cash flow −$4.1M. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $20.7M | +14% | +2% |
| Operating profit | −$12.0M | — | — |
| Net earnings | −$10.7M | — | — |
| Operating cash flow | −$4.1M | — | — |
What changed
Revenue was $20.7M in Q4 2025, up 2% year over year and up 14% from the previous quarter.
Gross margin was 42.7%, up 17.9 points from a year earlier. Operating costs exceeded revenue by $12.0M, an operating margin of -57.7%. Operating expenses grew 35% against revenue growth of 2%. The fastest-growing cost line was Research & development (+37%). The quarter ended with a net loss of $10.7M, wider than the previous quarter's $9.0M loss.
Operating cash flow was −$4.1M. Non-cash charges added back $1.6M of depreciation and amortization and $3.2M of share-based compensation. Working capital and other items added $1.8M.
Questions
What was Ambiq Micro's revenue in the fourth quarter 2025?
Ambiq Micro (AMBQ) reported revenue of $20.7M for the fourth quarter 2025 (Q4 2025), +2% from a year earlier and +14% from the quarter before.
Was Ambiq Micro profitable in the fourth quarter 2025?
Operating loss was $12.0M (-57.7% of revenue) and net loss $10.7M.
Source: Ambiq Micro 10-K on SEC EDGAR.