Mike F Chang insider trades: ALPHA & OMEGA SEMICONDUCTOR (AOSL) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Mike reports to the SEC
Open-market buys and sales
22 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026 | AOSL | ↑ Buy | 33,727 | $19.00 | $641K | Direct | Mar 10, 2026 (1d) |
| Jan 29, 2024 | AOSL | ↓ Sell10b5-1 | 30,000 | $26.91 | $807K | Direct | Jan 30, 2024 (1d) |
| Dec 28, 2023 | AOSL | ↓ Sell10b5-1 | 30,000 | $26.53 | $796K | Direct | Dec 29, 2023 (1d) |
| Dec 14, 2023 | AOSL | ↓ Sell10b5-1 | 30,000 | $25.00 | $750K | Direct | Dec 18, 2023 (4d) |
| Oct 26, 2023 | AOSL | ↓ Sell10b5-1 | 30,000 | $25.03 | $751K | Direct | Oct 27, 2023 (1d) |
| Sep 26, 2023 | AOSL | ↓ Sell10b5-1 | 30,000 | $28.64 | $859K | Direct | Sep 27, 2023 (1d) |
| Sep 1, 2023 | AOSL | ↓ Sell10b5-1 | 30,000 | $31.01 | $930K | Direct | Sep 5, 2023 (4d) |
| Jan 9, 2023 | AOSL | ↓ Sell10b5-1 | 56,400 | $29.96 | $1.7M | Direct | Jan 10, 2023 (1d) |
| Mar 17, 2022 | AOSL | ↓ Sell10b5-1 | 56,400 | $55.00 | $3.1M | Direct | Mar 17, 2022 (0d) |
| Jan 12, 2021 | AOSL | ↓ Sell10b5-1 | 25,434 | $28.70 | $730K | Direct | Jan 12, 2021 (0d) |
| Jan 8, 2021 | AOSL | ↓ Sell10b5-1 | 124,566 | $28.15 | $3.5M | Direct | Jan 8, 2021 (0d) |
| Oct 5, 2020 | AOSL | ↓ Sell10b5-1 | 94,000 | $15.50 | $1.5M | Direct | Oct 6, 2020 (1d) |
| Jan 3, 2019 | AOSL | ↑ Buy10b5-1 | 480 | $9.99 | $5K | Direct | Jan 4, 2019 (1d) |
| Dec 27, 2018 | AOSL | ↑ Buy10b5-1 | 37,671 | $9.86 | $371K | Direct | Dec 27, 2018 (0d) |
| Dec 21, 2018 | AOSL | ↑ Buy10b5-1 | 31,318 | $9.88 | $309K | Direct | Dec 21, 2018 (0d) |
| Dec 19, 2018 | AOSL | ↑ Buy10b5-1 | 40,252 | $9.96 | $401K | Direct | Dec 19, 2018 (0d) |
| Dec 11, 2018 | AOSL | ↑ Buy10b5-1 | 800 | $10.00 | $8K | Direct | Dec 13, 2018 (2d) |
| Dec 10, 2018 | AOSL | ↑ Buy10b5-1 | 36,405 | $9.93 | $362K | Direct | Dec 10, 2018 (0d) |
| Nov 20, 2018 | AOSL | ↑ Buy | 3,930 | $10.00 | $39K | Direct | Nov 21, 2018 (1d) |
| Dec 13, 2016 | AOSL | ↓ Sell10b5-1 | 50,000 | $22.15 | $1.1M | Direct | Dec 14, 2016 (1d) |
| Nov 14, 2016 | AOSL | ↓ Sell10b5-1 | 50,000 | $21.00 | $1.1M | Direct | Nov 15, 2016 (1d) |
| Oct 10, 2016 | AOSL | ↓ Sell10b5-1 | 50,000 | $22.64 | $1.1M | Direct | Oct 12, 2016 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other AOSL insiders
Open-market trades in the last 12 months
About Mike F Chang's insider trades
Mike F Chang is a director at ALPHA & OMEGA SEMICONDUCTOR (AOSL). Since Oct 10, 2016, Mike has reported 8 open-market purchases worth $2.1M and 14 sales worth $18.7M on SEC Form 4. In the last 12 months: 1 buy ($641K).
14 sales (100% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include shares withheld for taxes (36 filings), grants and awards (19 filings), gifts (18 filings), option exercises (10 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every AOSL insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.