Insider · CIK 0001598738
Michael L Pfeiffer
Files at AOSL (ALPHA & OMEGA SEMICONDUCTOR Ltd). First filing Jan 19, 2024, latest Jan 19, 2024.
In brief
Michael L Pfeiffer files SEC Form 4 as director at AOSL (ALPHA & OMEGA SEMICONDUCTOR Ltd). Since Jan 19, 2024, Michael L Pfeiffer has reported 0 open-market buys worth $0 and 1 open-market sell worth $91k, the latest filed on Jan 19, 2024.
A track record needs three past buys with six months of prices behind them; Michael L Pfeiffer has 0, so none is measured yet.
The newest scored trade: sold $91k of AOSL on Jan 18, 2024, filed Jan 19, 2024, scored 4 (weak), under a 10b5-1 plan.
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 |
|---|---|---|---|---|---|
| 4Weak | ALPHA & OMEGA SEMICONDUCTOR Ltd | $91k 3,337 shares | -6% | +33% from low-29% 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 |
|---|---|---|---|---|---|
| Jan 19, 2024 | AOSL ALPHA AND OMEGA SEMICONDUCTOR LIMITED | 2,673 0.01% of outstanding | $73k | Jan 19, 2024 | $18k |
Transactions
Every row this insider has filed, 9 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Nov 11, 2025 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Shares | +5,681 | $0.00 | $0 | 71,294 | Nov 12, 2025 |
| Nov 7, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Shares | +4,456 | $0.00 | $0 | 65,613 | Nov 8, 2024 |
| Jan 18, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | MOption exercise Common Shares10b5-1 | +2,375 | $7.21 | $17k | 59,994 | Jan 19, 2024 |
| Jan 18, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | SOpen-market sale Common Shares10b5-1 | -664 | $26.68 | $18k | 59,330 | Jan 19, 2024 |
| Jan 19, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | MOption exercise Common Shares10b5-1 | +4,500 | $7.21 | $32k | 63,830 | Jan 19, 2024 |
| Jan 19, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | SOpen-market sale Common Shares10b5-1 | -2,673 | $27.34 | $73k | 61,157 | Jan 19, 2024 |
| Jan 18, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | MOption exercise Share Option (Right to Buy)derivative10b5-1 | -2,375 | $0.00 | $0 | 4,500 | Jan 19, 2024 |
| Jan 19, 2024 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | MOption exercise Share Option (Right to Buy)derivative10b5-1 | -4,500 | $0.00 | $0 | 0 | Jan 19, 2024 |
| Nov 9, 2023 | AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd | AGrant or award Common Shares | +5,593 | $0.00 | $0 | 57,619 | Nov 13, 2023 |
Questions about Michael L Pfeiffer
Answered from the filings on this page, as of the latest one.
Is Michael L Pfeiffer buying or selling?
Not in the last 12 months. Michael L Pfeiffer's latest open-market trade on SEC Form 4 was sold $91k of AOSL on Jan 18, 2024.
How did Michael L Pfeiffer's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Michael L Pfeiffer has 0.
Where does Michael L Pfeiffer file Form 4?
Michael L Pfeiffer has filed Form 4 at AOSL (ALPHA & OMEGA SEMICONDUCTOR Ltd). 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.