SEC Form 4 reporting owner

Chang Stephen Chunping

Chang Stephen Chunping has filed 10 Form 4 transactions reported between January 2, 2026 and August 24, 2026, as Chief Executive Officer of ALPHA & OMEGA SEMICONDUCTOR Ltd.

Name as filed: Chang Stephen Chunping

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$691K

4 lines

Companies

with Form 4 filings

Latest transaction

Aug 24, 2026

transaction date

Roles and reported holdings

AOSLALPHA & OMEGA SEMICONDUCTOR Ltd
Jan 2, 2026 – Aug 24, 2026
Chief Executive Officer
Held directly634,070 sh as of May 21, 2026 · Form 4
Held indirectly (latest line)100,947 sh as of Aug 24, 2026 · Form 4
24 months: $691K sold

Transaction history

All 10 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Aug 24, 2026	AOSLChief Executive Officer	GiftCode G · indirect	100,947	—	—	100,947	Form 4
May 21, 2026	AOSLChief Executive Officer	GiftCode G · direct	2,000	—	—	634,070	Form 4
Apr 17, 2026	AOSLChief Executive Officer	Open-market saleCode S · direct	9,911	$34.90	$346K@ $34.90	635,901	Form 4
Apr 17, 2026	AOSLChief Executive Officer	Open-market saleCode S · direct	3,481	$33.90	$118K@ $33.90	645,812	Form 4
Apr 17, 2026	AOSLChief Executive Officer	Open-market saleCode S · direct	1,492	$32.90	$49K@ $32.90	649,293	Form 4
Apr 14, 2026	AOSLChief Executive Officer	Open-market saleCode S · direct	5,594	$31.90	$178K@ $31.90	650,785	Form 4
Mar 16, 2026	AOSLChief Executive Officer	Shares withheld for tax or exercise priceCode F · direct	17,839	$21.43	$382K@ $21.43	588,879	Form 4
Mar 16, 2026	AOSLChief Executive Officer	Shares withheld for tax or exercise priceCode F · direct	25,644	$21.43	$550K@ $21.43	606,718	Form 4
Mar 16, 2026	AOSLChief Executive Officer	Grant or awardCode A · direct	67,500	—	—	632,362	Form 4
Jan 2, 2026	AOSLChief Executive Officer	Shares withheld for tax or exercise priceCode F · direct	12,002	$20.66	$248K@ $20.66	564,862	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.