Chris Siu insider trades: Aehr Test Systems (AEHR) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Chris reports to the SEC
Open-market buys and sales
5 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 14, 2026 | AEHR | ↓ Sell | 1,600 | $106.78 | $171K | By Trust | May 15, 2026 (1d) |
| May 14, 2026 | AEHR | ↓ Sell | 470 | $108.00 | $51K | Direct | May 15, 2026 (1d) |
| Dec 6, 2023 | AEHR | ↓ Sell | 322 | $25.27 | $8K | Direct | Dec 7, 2023 (1d) |
| Aug 4, 2020 | UCTT | ↓ Sell | 5,413 | $30.24 | $164K | Direct | Aug 5, 2020 (1d) |
| Nov 2, 2007 | TRID | ↑ Buy | 1,000 | $6.79 | $7K | Direct | Nov 5, 2007 (3d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other AEHR insiders
Open-market trades in the last 12 months
About Chris Siu's insider trades
Chris Siu is CFO at Aehr Test Systems (AEHR). Since Nov 2, 2007, Chris has reported 1 open-market purchase worth $7K and 4 sales worth $393K on SEC Form 4. In the last 12 months: 2 sales ($222K).
Their filings also include shares withheld for taxes (34 filings), grants and awards (13 filings), other transactions (6 filings), gifts (1 filing). 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 AEHR insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.