Company profile
Aehr Test Systems Insider Trading
AEHREvery SEC Form 4 insider trading filing for Aehr Test Systems (AEHR) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Instruments For Meas & Testing of Electricity & Elec Signals
- CIK
- 0001040470
- Filings
- 425
- Insiders
- 17
- Last filing
- 2026-09-03
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $62K across 2 transactions.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Aehr Test Systems insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $42.3M.
90 day insight
Over the last 90 days, Aehr Test Systems insiders bought $207K (7 transactions) and sold $20.0M (37 transactions).
- Most active insider: Vernon Rogers with 10 transactions totaling $1.0M.
- Largest single sale: $5.0M by Gayn Erickson on Aug 12, 2026.
Activity skews bearish — sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 3, 2026 | Didier Wimmers | AEHR | Tax Withholding | 317 | $76.27 | $24K |
| Sep 1, 2026 | Chris Siu | AEHR | Tax Withholding | 496 | $76.59 | $38K |
| Aug 17, 2026 | Vernon Rogers | AEHR | Sale | 3,994 | $143.77 | $574K |
| Aug 14, 2026 | Rhea J Posedel | AEHR | Sale | 5,973 | $140.00 | $836K |
| Aug 14, 2026 | Howard T Slayen | AEHR | Sale | 5,700 | $133.03 | $758K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Aehr Test Systems as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →