Chris Siu, Chief Financial Officer of Aehr Test Systems, filed a Form 4 on September 1, 2026, reporting the disposition of 496 shares of common stock to satisfy tax withholding obligations upon the vesting of restricted stock units and restricted shares.

Key Highlights

  • Reporting person: Chris Siu, CFO of Aehr Test Systems
  • Transaction date: September 1, 2026
  • Shares withheld: 496 shares of common stock, coded "F" (tax withholding), at $76.59 per share
  • Beneficial ownership following transaction: 77,328 shares held directly, including shares subject to unvested restricted stock units
  • Indirect ownership: 5,706 shares held indirectly by trust
  • Filing clarification: The disposition "does not represent a sale by the Reporting Person," according to the filing

Aehr Test Systems CFO Tax Withholding Transaction Details

According to the Form 4 filed with the SEC, Chris Siu, the Chief Financial Officer of Aehr Test Systems (NASDAQ:AEHR), reported a single non-derivative transaction on September 1, 2026. The transaction involved 496 shares of common stock disposed of under transaction code "F," which the filing identifies as shares withheld to satisfy tax withholding obligations upon the vesting of restricted stock units and restricted shares.

The filing states that the 496 shares were disposed of at a price of $76.59 per share. Following the transaction, Siu is reported to beneficially own 77,328 shares of common stock directly. The filing notes that this total "includes shares subject to unvested restricted stock units." In addition to direct holdings, Siu holds 5,706 shares indirectly through a trust, as disclosed in the filing.

No derivative securities transactions were reported in Table II of the form. The filing was made by one reporting person and bears the signature of Siu Chris, dated September 1, 2026. The filing explicitly states that the share withholding "does not represent a sale by the Reporting Person."

What Was Disclosed

Aehr Test Systems CFO Chris Siu disclosed the withholding of 496 common shares at $76.59 each to cover tax obligations on vesting equity awards, leaving direct beneficial ownership of 77,328 shares and indirect ownership of 5,706 shares via trust.