---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-092653"
form_type: "8-K"
ticker: "AMBQ"
cik: "0001500412"
company_name: "Ambiq Micro, Inc."
filed_at: "2026-03-05T23:59:59+00:00"
generated_at: "2026-05-15T19:33:42.480091+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ambiq Q4 net sales $20.7M, highest of 2025; gross margin 42.7%; guides Q1 $21-22M

## Summary
- Q4 net sales $20.7M, highest of 2025; 14.2% QoQ growth and 2.0% YoY growth.
- GAAP gross margin 42.7% vs 24.8% YoY; non-GAAP 45.5%; full-year gross profit record.
- Q4 GAAP net loss $10.7M ($0.58 per share); EPS improved from -$26.41 in Q4 2024.
- Q1 2026 guidance: net sales $21-22M, signaling continued momentum.
- Completed upsized IPO ($102.7M net) and follow-on ($76.8M net); launched Atomiq NPU SoC.

## SEC filing metadata
- accession: 0001193125-26-092653
- form_type: 8-K
- ticker: AMBQ
- cik: 0001500412
- company_name: Ambiq Micro, Inc.
- filed_at: 2026-03-05T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1500412/000119312526092653/0001193125-26-092653-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1500412/000119312526092653/ambq-20260305.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-092653
- JSON: https://secwatch.observer/filing/0001193125-26-092653.json
- Plain text: https://secwatch.observer/filing/0001193125-26-092653.txt

## Key facts
- Earnings Releases
  Ambiq Micro, Inc. reported fourth quarter and full year ended December 31, 2025 results: revenue Full Year 2025 net sales of $72.5 million, net income Net loss attributable to common stockholders $(10,679), EPS Net loss per share attributable to common stockholders $(0.58). Guidance reaffirmed.
  - Period: fourth quarter and full year ended December 31, 2025
  - Revenue: Full Year 2025 net sales of $72.5 million
  - Net income: Net loss attributable to common stockholders $(10,679)
  - EPS: Net loss per share attributable to common stockholders $(0.58)
  - Guidance: reaffirmed
  - Result: reported results
  source text: On March 5, 2026, Ambiq Micro, Inc. (the "Company") issued a press release to report financial results for its fourth quarter and full year ended December 31, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1500412/000119312526092653/0001193125-26-092653-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.