InsiderTrades

Form 4 for AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd

Accepted 2026-04-16 16:11:42 ET · period of report 2026-04-14 · accession 0001628280-26-025500 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
T 2026-04-16 16:11 2026-04-14 AOSL Chang Stephen Chunping CEO, Dir S - Sale $31.90 -5,594 650.8K -0.9% -$178.4K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Share 2026-04-14 S D 5,594 $31.90 650,785 D — — (F1) The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 8, 2025. (F2) The price reported in Column 4 is the exact price at which all shares were sold. (F3) Includes 22,500 unvested shares subject to the Market-Based Performance Share Unit (MSU) granted on July 1, 2018 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person. (F4) Includes 79,375 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2024 and March 17, 2025 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person. (F5) Includes an aggregate of 161,250 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2023, March 15, 2024, March 17, 2025, and March 16, 2026 which will be issued as such units vest in accordance with their terms, and excludes 67,500 unvested common shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future.