Ambiq Micro, Inc. 8-K

What Happened

• Ambiq Micro, Inc. filed an 8-K on January 21, 2026 (Item 2.02) disclosing selected preliminary unaudited financial results for the year ended December 31, 2025. The company reported estimated net sales of $71.77M to $72.47M and a GAAP gross profit of $31.36M to $31.67M (gross margin ~43.7%). These figures are preliminary, subject to year-end close procedures, and have not been audited or reviewed by Ambiq’s auditor, KPMG LLP.

Key Details

• Net sales (estimated): $71,770k to $72,470k for year ended Dec 31, 2025.
• Geographic split: Net sales outside Mainland China $65,331k–$66,368k (91.0%–91.6%); Mainland China $6,439k–$6,102k (9.0%–8.4%).
• Gross profit and margins: GAAP gross profit $31,359k–$31,667k (43.7% margin). Non-GAAP gross profit $31,792k–$32,300k (non-GAAP margin 44.3%–44.6%).
• Non-GAAP reconciliation (estimated): adds depreciation & amortization $1,856k–$1,956k and stock-based compensation $177k–$277k; includes a $1,600k gain on a nonmonetary transaction (subtracted in reconciliation).

Why It Matters

• These preliminary results give investors an early look at Ambiq’s full-year 2025 revenue, geographic exposure, and profitability measures before audited statements are issued. The high percentage of sales outside Mainland China (~91%) and the reported gross margin (~43.7% GAAP, ~44.3–44.6% non-GAAP) are key metrics for evaluating sales mix and product profitability. Because these are unaudited estimates and may change during the close and audit, investors should treat them as provisional and wait for the audited 10-K for final results.