Insider · CIK 0001722000
Stephen Chunping Chang
Files at AOSL (ALPHA & OMEGA SEMICONDUCTOR Ltd). First filing Apr 16, 2026, latest Apr 20, 2026.
In brief
Stephen Chunping Chang files SEC Form 4 as CEO and director at AOSL (ALPHA & OMEGA SEMICONDUCTOR Ltd). Since Apr 16, 2026, Stephen Chunping Chang has reported 0 open-market buys worth $0 and 2 open-market sells worth $691k, the latest filed on Apr 20, 2026.
A track record needs three past buys with six months of prices behind them; Stephen Chunping Chang has 0, so none is measured yet.
The newest scored trade: sold $513k of AOSL on Apr 17, 2026, filed Apr 20, 2026, scored 38 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 2 sells worth $691k.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
AOSL: ALPHA & OMEGA SEMICONDUCTOR Ltd
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 38Weak | ALPHA & OMEGA SEMICONDUCTOR Ltd | $513k 14,884 shares | -2% | +108% from low0% from high | |
| 32Weak | ALPHA & OMEGA SEMICONDUCTOR Ltd | $178k 5,594 shares | -1% | +87% from low-5% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Apr 17, 2026 | AOSL ALPHA AND OMEGA SEMICONDUCTOR LIMITED | 14,884 0.05% of outstanding | $513k | Apr 17, 2026 | $178k |
| Apr 14, 2026 | AOSL ALPHA AND OMEGA SEMICONDUCTOR LIMITED | 5,594 0.02% of outstanding | $178k | Apr 14, 2026 | none |
Transactions
Every row this insider has filed, 23 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 24, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | GGift Common Shareindirect: By STEPHEN CHUPING CHANG TTEE TRUST | +100,947 | $0.00 | $0 | 100,947 | 33 d ago |
| May 21, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | GGift Common Share | -2,000 | $0.00 | $0 | 634,070 | May 26, 2026 |
| Apr 17, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | SOpen-market sale Common Share10b5-1 | -1,492 | $32.90 | $49k | 649,293 | Apr 20, 2026 |
| Apr 17, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | SOpen-market sale Common Share10b5-1 | -3,481 | $33.90 | $118k | 645,812 | Apr 20, 2026 |
| Apr 17, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | SOpen-market sale Common Share10b5-1 | -9,911 | $34.90 | $346k | 635,901 | Apr 20, 2026 |
| Apr 14, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | SOpen-market sale Common Share10b5-1 | -5,594 | $31.90 | $178k | 650,785 | Apr 16, 2026 |
| Mar 16, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Share | +67,500 | $0.00 | $0 | 632,362 | Mar 18, 2026 |
| Mar 16, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -25,644 | $21.43 | $550k | 606,718 | Mar 18, 2026 |
| Mar 16, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -17,839 | $21.43 | $382k | 588,879 | Mar 18, 2026 |
| Mar 16, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Share | +67,500 | $0.00 | $0 | 656,379 | Mar 18, 2026 |
| Jan 2, 2026 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -12,002 | $20.66 | $248k | 564,862 | Jan 5, 2026 |
| Sep 9, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | GGift Common Share | -2,100 | $0.00 | $0 | 576,705 | Sep 10, 2025 |
| Mar 17, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Share | +67,500 | $0.00 | $0 | 552,187 | Mar 18, 2025 |
| Mar 17, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -19,996 | $27.61 | $552k | 532,191 | Mar 18, 2025 |
| Mar 17, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -11,013 | $27.61 | $304k | 521,178 | Mar 18, 2025 |
| Mar 17, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Share | +57,500 | $0.00 | $0 | 578,678 | Mar 18, 2025 |
| Jan 2, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -11,224 | $36.54 | $410k | 484,687 | Jan 3, 2025 |
| Nov 8, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | GGift Common Share | -2,000 | $0.00 | $0 | 495,784 | Nov 8, 2024 |
| Mar 15, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Share | +57,500 | $0.00 | $0 | 516,929 | Mar 18, 2024 |
| Mar 15, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -13,940 | $21.55 | $300k | 502,989 | Mar 18, 2024 |
| Mar 15, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -6,080 | $21.55 | $131k | 496,909 | Mar 18, 2024 |
| Jan 2, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Share | +90,000 | $0.00 | $0 | 467,637 | Jan 5, 2024 |
| Jan 2, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | FTax withholding Common Share | -8,208 | $27.38 | $225k | 459,429 | Jan 5, 2024 |
Questions about Stephen Chunping Chang
Answered from the filings on this page, as of the latest one.
Is Stephen Chunping Chang buying or selling?
In the last 12 months Stephen Chunping Chang reported 0 open-market buys worth $0 and 2 open-market sells worth $691k on SEC Form 4; the latest was sold $513k of AOSL on Apr 17, 2026. Grants, option exercises and tax withholding are not counted.
How did Stephen Chunping Chang's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Stephen Chunping Chang has 0.
Where does Stephen Chunping Chang file Form 4?
Stephen Chunping Chang has filed Form 4 at AOSL (ALPHA & OMEGA SEMICONDUCTOR Ltd) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.