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Who

Mike F. Chang

Director and 10% owner

Company insider

Files Form 4 as: Chairman of Board, Alpha and Omega Semiconductor.

In numbers

Trades disclosed
171
Buys
14
Sells
19
Bought
$2.8M
Sold
$18.7M
Companies
1
Companies where not an officer
0
First trade
26 Apr 2012
Last trade
24 Aug 2026
Last filed
11 Sep 2026

Companies traded

Where they are an officer
AOSL Alpha and Omega SemiconductorDirector, Officer, 10% owner, Other · Semiconductors · last 24 Aug 202614 buys · 19 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
01Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
24 Aug 2026filed 11 Sep 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—100,947 at $0.00filing
24 Aug 2026filed 11 Sep 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—100,947 at $0.00filing
13 Aug 2026filed 14 Aug 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—3,000,000 at $0.00filing
13 Aug 2026filed 14 Aug 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—3,000,000 at $0.00filing
13 Jul 2026filed 15 Jul 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—23,754 at $0.00filing
13 Jul 2026filed 15 Jul 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—23,754 at $0.00filing
1 Jun 2026filed 3 Jun 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—30,000 at $0.00filing
1 Jun 2026filed 3 Jun 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—30,000 at $0.00filing
26 May 2026filed 28 May 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—39,780 at $0.00filing
26 May 2026filed 28 May 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—39,780 at $0.00filing
22 May 2026filed 27 May 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—736,252 at $0.00filing
22 May 2026filed 27 May 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code G—736,252 at $0.00filing
16 Mar 2026filed 25 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code F$309K14,419 at $21.43filing
16 Mar 2026filed 25 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code A—22,500 at $0.00filing
16 Mar 2026filed 25 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code F$309K14,419 at $21.43filing
16 Mar 2026filed 25 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code A—22,500 at $0.00filing
16 Mar 2026filed 18 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code A—22,500 at $0.00filing
16 Mar 2026filed 18 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code F$385K17,984 at $21.43filing
16 Mar 2026filed 18 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code F$211K9,829 at $21.43filing
16 Mar 2026filed 18 Mar 2026AOSL Alpha and Omega SemiconductorSemiconductorsSEC FORM 4 Code A—22,500 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Technology33

Buys in green, sells in red, by the company’s sector.

Related people

Stephen Chunping ChangChief Executive Officer · Chief Executive Officer at Alpha & Omega Semiconductor, filing Form 4 there in the last year
Joshua C. ChienDirector · Director at Alpha & Omega Semiconductor, filing Form 4 there in the last year
Bing XueEVP-WW Sales & Bus Development · EVP-WW Sales & Bus Development at Alpha & Omega Semiconductor, filing Form 4 there in the last year
Claudia ChenDirector · Director at Alpha & Omega Semiconductor, filing Form 4 there in the last year
Yifan LiangCFO and Corp Secretary · CFO and Corp Secretary at Alpha & Omega Semiconductor, filing Form 4 there in the last year