This page lists the SEC filings reported by Chang Mike F.
| Type | Filed | Filer | Subject | Shares Owned | Percent Owned | |
|---|---|---|---|---|---|---|
| SC 13G/A | 2024-02-12 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,119,651 | 14.7% | EDGAR |
| SC 13G/A | 2023-02-09 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,274,710 | 15.5% | EDGAR |
| SC 13G/A | 2022-02-11 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,364,126 | 16.3% | EDGAR |
| SC 13G/A | 2021-02-11 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,506,397 | 17.5% | EDGAR |
| SC 13G/A | 2020-02-12 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,732,975 | 19.1% | EDGAR |
| SC 13G/A | 2019-02-12 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,653,001 | 19.4% | EDGAR |
| SC 13G/A | 2018-02-09 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,434,738 | 18.6% | EDGAR |
| SC 13G/A | 2017-02-13 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,376,524 | 18.6% | EDGAR |
| SC 13G/A | 2016-02-12 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,563,279 | 20.5% | EDGAR |
| SC 13G/A | 2015-02-17 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,419,811 | 16.6% | EDGAR |
| SC 13G/A | 2014-02-14 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,344,083 | 16.7% | EDGAR |
| SC 13G/A | 2013-02-12 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,267,045 | 16.8% | EDGAR |
| SC 13G/A | 2012-02-14 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,295,168 | 17.5% | EDGAR |
| SC 13G | 2011-02-10 | Chang Mike F | ALPHA & OMEGA SEMICONDUCTOR Ltd | 4,224,335 | 17.3% | EDGAR |
- Form 13F-HR
- The 13F-HR report is filed quarterly to report securities held by the filer that fall under the SEC's 13F rules.
- Form SC 13D/G
- Reported by persons and groups who own 5% or more of any class of a company's outstanding shares. If the ownership changes by 1% or more, an amendment must be filed.
- Form 3, 4, and 5
- Form 3, 4, and 5 reports are filed to report insider transactions by company officers and directors, and any beneficial owners of more than ten percent of a company's shares. Form 3 is the initial report that must be filed when a person becomes an officer, director, or beneficial owner. Form 4 reports are used to report changes in ownership, while the Form 5 report is used for reporting transactions that should have been reported earlier in a Form 4 filing.