Pfeiffer Michael L
SEC CIK 1598738 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Dir | 71.3K | — | $90.8K | 7 | 2021-11-11 | 2025-11-11 |
Most active insiders at AOSL, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Liang Yifan | CFO, Corp Sec | — | $1.11M |
| 2 | Xue Bing | EVP-WW Sales, Bus Development | — | $715.7K |
| 3 | Chang Stephen Chunping | CEO, Dir | — | $691.4K |
| 4 | Chang Mike F | Dir, 10% | $640.8K | — |
| 5 | Chen Claudia | Dir | — | $160.5K |
| 6 | Chien Joshua C. | Dir | — | — |
| 7 | Jeong So-Yeon | Dir | — | — |
| 8 | Li Hanqing | Dir | — | — |
| 9 | Li Wenjun | COO | — | — |
| 10 | Chang Lucas S. | Dir | — | — |
| 11 | Pfeiffer Michael L | Dir | — | — |
Transactions 7
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-11-12 | 2025-11-11 | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | A - Grant | $0.00 | +5,681 | 71.3K | +9% | $0 | |
| 2024-11-08 | 2024-11-07 | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | A - Grant | $0.00 | +4,456 | 65.6K | +7% | $0 | |
| DM | 2024-01-19 | 2024-01-18+ | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | M - OptEx | $7.21 | +6,875 | 63.8K | +12% | +$49.6K |
| DM | 2024-01-19 | 2024-01-18+ | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | S - Sale+OE | $27.21 | -3,337 | 59.3K | -5% | -$90.8K |
| 2023-11-13 | 2023-11-09 | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | A - Grant | $0.00 | +5,593 | 57.6K | +11% | $0 | |
| 2022-12-01 | 2022-11-29 | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | A - Grant | $0.00 | +4,061 | 52.0K | +8% | $0 | |
| 2021-11-15 | 2021-11-11 | AOSL | ALPHA & OMEGA SEMICONDUCTOR Ltd | Pfeiffer Michael L | Dir | A - Grant | $0.00 | +4,009 | 48.0K | +9% | $0 |
Purchase Sale Sale after option exercise All abbreviations