Aehr Test Sys SEC Filings

AEHR Test Systems CFO Siu Chris reported insider activity on a Form 4 dated 10/01/2025. The filing shows an acquisition of 1,009 shares at a price of $6.6725 through the companys Amended and Restated 2006 Employee Stock Purchase Plan, which the filing states is a Section 423 tax-conditioned plan and exempt from six-month short-swing liability. The filing also records a disposition of 76,229 shares, and reports beneficial ownership of 5,211 shares following the transactions, held indirectly. The filing notes some reported shares include unvested restricted stock units. The signature on the form is "/s/ SIU CHRIS" dated 10/01/2025.

Engineer Adil, Chief Operating Officer of AEHR TEST SYSTEMS (AEHR), reported a purchase of 730 shares of the company's common stock on 10/01/2025 at a price of $6.6725 per share. The shares were acquired through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a tax-conditioned plan under Internal Revenue Code Section 423, and this purchase is exempt from six-month short-swing liability under Section 16. Following the transaction, the reporting person beneficially owns 47,747 shares, an amount that includes shares subject to unvested restricted stock units.

Aehr Test Systems director Howard T. Slayen reported a change in beneficial ownership on 09/24/2025. The Form 4 shows a disposition of 5,000 shares of common stock, coded G, with a reported price of $0.00; the filing explains those shares were donated to Donor Advised Charitable Giving Inc. After the reported transaction the reporting person beneficially owned 224,328 shares, which the filer notes includes shares subject to unvested restricted stock units. The Form 4 was submitted by an attorney-in-fact and signed on 09/25/2025.

Aehr Test Systems describes its equity and executive compensation programs, including the 2023 Equity Incentive Plan, the Amended and Restated 2006 Employee Stock Purchase Plan (ESPP), and cash-based programs such as base salary, annual bonuses and commission plans. The filing explains award types available under the 2023 Plan—Nonqualified Stock Options, Incentive Stock Options, Restricted Stock, Restricted Stock Units, Stock Appreciation Rights, Performance Bonus Awards, Performance Stock Units and Dividend Equivalents—and summarizes their basic vesting, transfer and tax treatment.

The ESPP reserve and recent activity are disclosed: 209,594 shares remained available as of the record date; shares purchased in fiscal 2023, 2024 and 2025 were 210,765, 71,722 and 116,281, respectively; 86 employees participated in the most recent offering period purchasing 75,003 shares at an average purchase price of $6.6725 per share (value $7.85 on purchase date). Executive severance and change-in-control arrangements are described with specified cash multiples and continued healthcare and accelerated equity vesting for named executives.

Insider reported RSU withholding to cover taxes and a small disposition of common stock. The filing shows Executive VP of R&D Didier Wimmers had 308 shares withheld at $24.52 per share on 09/03/2025 to satisfy tax withholding upon vesting of restricted stock units; the filing clarifies this withholding "does not represent a sale" by the reporting person. Following the transaction, the reporting person is shown as beneficially owning 13,293 shares, which the filer notes includes shares subject to unvested restricted stock units.

AEHR Test Systems (AEHR) Form 4: Chris Siu, the company's Chief Financial Officer, reported transactions on 09/02/2025 related to restricted stock units (RSUs). The filing shows 349 shares were withheld to satisfy tax withholding obligations upon RSU vesting; the filing explicitly states this withholding does not represent a sale by the reporting person. After the transaction, Mr. Siu beneficially owns 76,229 shares directly (the total includes shares subject to unvested RSUs) and an additional 4,202 shares held indirectly through a trust. The form is a routine Section 16 disclosure of an insider equity change tied to compensation vesting rather than an open-market trade.

A director of Aehr Test Systems (AEHR) reported a donation of 639 shares of common stock on 09/02/2025 using a Form 4 disclosure. The reported disposition was coded as a gift (transaction code G) with no cash proceeds ($0). After the donation, the reporting person beneficially owned 229,328 shares, an amount the filer notes includes unvested restricted stock units. The filing lists the reporting person as a director and shows the shares were donated to the California Association of CASAs, indicating a charitable transfer rather than a market sale.

Aehr Test Systems (AEHR) Form 144 notice reports a proposed sale of 10,000 common shares, with an aggregate market value of $201,600, to be sold through Charles Schwab & Co., Inc. on or about 08/15/2025 on Nasdaq. The shares were acquired on 04/05/2023 via stock option exercise from the issuer and were paid for in cash on the acquisition date. The filer reports no securities sold in the past three months and includes the standard representation that they are not aware of undisclosed material adverse information about the issuer. The filing presents a routine insider sale notification rather than operational or financial results.

AEHR Test Systems (AEHR) filed a Form 4 for EVP Alberto Salamone. On 08/01/2025, 186 common shares were withheld (code “F”) at $16.84 each—about $3.1 k—to cover taxes due on the vesting of restricted stock units. Such F-code transactions are executed by the company and are not open-market sales, so they do not reflect discretionary selling by the insider.

Following the withholding, Salamone directly owns 78,349 shares, which still include unvested RSUs; no derivative securities were reported. The change is immaterial to both his ownership percentage and the company’s share count. The filing is therefore routine and has neutral investment impact.