Company filings profile · CIK 0001387467
ALPHA & OMEGA SEMICONDUCTOR Ltd — SEC filings & insider activity.
Real, source-linked SEC EDGAR activity for ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL): 15 filings in the last 90 days vs 29 in the prior 90 (filing-velocity cooling ↓ · 0.52×). Latest material 8-K events, insider Form-4 transactions, and periodic reports — monitored for change.
✔ Verified against the public SEC EDGAR filing record as of Sep 19, 2026. Source-linked, daily-refreshed.
Material 8-K events — ALPHA & OMEGA SEMICONDUCTOR Ltd
8-K disclosures decoded by item code (the material events: agreements, results, control/management changes, impairments, restatements).
| Filed | Event | |
|---|---|---|
| Aug 12, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Jul 10, 2026 | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| May 12, 2026 | Completion of Acquisition/Disposition; Financial Statements and Exhibits | ↗ |
| May 6, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Apr 17, 2026 | Departure/Election of Directors or Officers | ↗ |
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Insider transactions (Form 4 / 3 / 5)
Recent filings
| Filed | Form | Detail | |
|---|---|---|---|
| Sep 11, 2026 | 4 | FORM 4 | ↗ |
| Sep 11, 2026 | 4 | FORM 4 | ↗ |
| Aug 27, 2026 | S-8 | S-8 | ↗ |
| Aug 27, 2026 | 10-K | 10-K | ↗ |
| Aug 14, 2026 | 4 | FORM 4 | ↗ |
| Aug 12, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Aug 10, 2026 | SCHEDULE 13G/A | ↗ | |
| Aug 7, 2026 | SCHEDULE 13G | ↗ | |
| Jul 21, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 4 | FORM 4 | ↗ |
| Jul 17, 2026 | 3 | FORM 3 | ↗ |
| Jul 16, 2026 | 144 | ↗ | |
| Jul 15, 2026 | 4 | FORM 4 | ↗ |
| Jul 14, 2026 | SCHEDULE 13G/A | ↗ | |
| Jul 10, 2026 | 8-K | Departure/Election of Directors or Officers; Financial Statements and Exhibits | ↗ |
| Jun 17, 2026 | 4 | FORM 4 | ↗ |
| Jun 16, 2026 | 144 | ↗ | |
| Jun 3, 2026 | 4 | FORM 4 | ↗ |
| May 28, 2026 | 4 | FORM 4 | ↗ |
| May 27, 2026 | 4 | FORM 4 | ↗ |
| May 26, 2026 | 4 | FORM 4 | ↗ |
| May 26, 2026 | 4 | FORM 4 | ↗ |
| May 22, 2026 | 144 | ↗ | |
| May 20, 2026 | 4 | FORM 4 | ↗ |
| May 18, 2026 | 144 | ↗ | |
| May 12, 2026 | 8-K | Completion of Acquisition/Disposition; Financial Statements and Exhibits | ↗ |
| May 6, 2026 | 10-Q | 10-Q | ↗ |
| May 6, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Apr 30, 2026 | 4 | FORM 4 | ↗ |
| Apr 20, 2026 | 4 | FORM 4 | ↗ |
| Apr 20, 2026 | 4 | FORM 4 | ↗ |
| Apr 20, 2026 | 4 | FORM 4 | ↗ |
| Apr 17, 2026 | 144 | ↗ | |
| Apr 17, 2026 | 8-K | Departure/Election of Directors or Officers | ↗ |
| Apr 17, 2026 | 144 | ↗ | |
| Apr 16, 2026 | 4 | FORM 4 | ↗ |
| Apr 16, 2026 | 4 | FORM 4 | ↗ |
| Apr 16, 2026 | 144 | ↗ | |
| Apr 14, 2026 | 144 | ↗ | |
| Apr 14, 2026 | 144 | ↗ |