---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-056197"
form_type: "8-K"
ticker: "AOSL"
cik: "0001387467"
company_name: "ALPHA & OMEGA SEMICONDUCTOR Ltd"
filed_at: "2026-08-12T20:11:41+00:00"
generated_at: "2026-08-12T20:12:49.483444+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# AOS reports Q4 FY26 net loss of $13.1M; revenue $170.4M, down 3.5% YoY

## Summary
- Q4 FY26 revenue $170.4M, up 4% sequentially from $163.8M but down 3.5% YoY from $176.5M.
- GAAP net loss $13.1M ($0.43 diluted EPS), improved from $77.1M loss ($2.58 EPS) in year-ago quarter.
- Non-GAAP net loss $4.0M ($0.13 diluted EPS) vs $0.7M income a year ago; non-GAAP operating loss $4.8M.
- GAAP gross margin 23.1% (23.7% non-GAAP) vs 23.4% GAAP and 24.4% non-GAAP in Q4 FY25.
- CFO Yifan Liang said on the call he will provide guidance for the September 2026 quarter.

## SEC filing metadata
- accession: 0001628280-26-056197
- form_type: 8-K
- ticker: AOSL
- cik: 0001387467
- company_name: ALPHA & OMEGA SEMICONDUCTOR Ltd
- filed_at: 2026-08-12T20:11:41+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1387467/000162828026056197/0001628280-26-056197-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1387467/000162828026056197/aosl-20260812.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-056197
- JSON: https://secwatch.observer/filing/0001628280-26-056197.json
- Plain text: https://secwatch.observer/filing/0001628280-26-056197.txt

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