Welcome to our dedicated page for Aehr Test Sys SEC filings (Ticker: AEHR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Aehr Test Systems filings document material events, operating results, capital actions and governance matters for a semiconductor test and burn-in equipment company. Recent Form 8-K disclosures include quarterly financial-result releases covering revenue, bookings, backlog, cash position and GAAP and non-GAAP earnings measures.
The filing record also includes capital-structure disclosures tied to an at-the-market common stock offering under a Form S-3 registration statement, along with proxy and annual meeting materials. Those governance filings address director elections, shareholder voting results, amendments to the company’s equity incentive and employee stock purchase plans, auditor ratification and executive-compensation matters.
AEHR Test Systems Executive VP of R&D Didier Wimmers reported a routine tax-withholding transaction related to equity compensation. On the vesting of restricted stock units, 332 shares of common stock were withheld at a reference price of $114.59 per share to cover tax obligations, rather than being sold on the open market.
After this withholding, Wimmers is reported as beneficially owning 10,327 shares of AEHR common stock, and this total includes shares that remain subject to unvested restricted stock units. The filing emphasizes that the transaction does not represent a discretionary sale by the executive.
AEHR Test Systems CFO Chris Siu reported a routine tax-related share withholding on recently vested restricted stock units. The company withheld 350 shares of common stock at $93.62 per share to satisfy tax obligations, which the filing states does not represent a sale by the reporting person.
After this withholding, Siu beneficially owns 69,920 shares of common stock directly, and 5,706 shares indirectly through a trust. The direct total includes shares subject to unvested restricted stock units, showing he retains a sizable equity position following this non-market transaction.
AEHR Test Systems director Howard T. Slayen reported an open-market sale of 6,819 shares of the company’s common stock at $104.73 per share. After this transaction, he directly holds 169,709 shares. A footnote notes that this amount includes shares subject to unvested restricted stock units.
Aehr Test Systems CFO Chris Siu reported open-market sales of company common stock. He sold 1,600 shares at an average price of $106.78 per share through an indirect holding by a trust, and 470 shares at $108.00 per share from his direct holdings.
After these transactions, Siu holds 5,706 shares indirectly through a trust and 70,270 shares directly. A footnote states that the reported amounts include shares subject to unvested restricted stock units, meaning some of the remaining position is tied to equity awards that have not yet fully vested.
AEHR submitted a Form 144 notice related to a proposed sale of common stock, listing 2,070 units and showing associated entries for 470 Restricted Stock Units (09/01/2023) and 1,600 Employee Stock Purchase Plan shares (04/01/2024). The filing lists a monetary figure of $213,727.50 and an ownership figure of 31,453,254 with an associated date of 05/14/2026.
AEHR insider Howard Slayen reported the sale of 25,000 shares of Common Stock on 04/17/2026, with aggregate proceeds of $2,125,000.00.
The filing also lists multiple prior restricted stock vesting events with small lot sizes between 01/27/2024 and 04/27/2025; these vesting entries are disclosure items and are shown for context.
Aehr Test Systems director Geoffrey Scott Gates filed an amended insider report updating how a prior transaction was classified. The amendment corrects the transaction code from F to G, confirming a bona fide gift of 10,000 shares of Common Stock held indirectly through a trust. After this gift, he reports 40,686 shares held indirectly by a trust, 50,000 shares held indirectly by his spouse, and 52,864 shares held directly.
AEHR TEST SYSTEMS ownership update: FMR LLC reports beneficial ownership of 2,142,638.70 shares of Common Stock, representing 7.0% of the class as shown on the cover (date: 03/31/2026). The filing is an amendment to a Schedule 13G and notes related authority via a Power of Attorney.
AEHR TEST SYSTEMS executive Alberto Salamone reported a routine tax-related share disposition. Upon vesting of restricted stock units, 204 shares of Common Stock were withheld to satisfy tax withholding obligations at an effective price of $93.07 per share, according to the Form 4.
After this withholding, Salamone directly holds 47,821 shares of AEHR Common Stock, and this amount includes shares subject to unvested restricted stock units. The footnotes clarify that this withholding does not represent an open-market sale by the reporting person but a non-market, compensation-related tax payment.
Aehr Test Systems director Geoffrey Scott Gates reported updated holdings of the company’s Common Stock. The Form 4 shows an indirect disposition of 10,000 shares coded as a tax-withholding transaction, leaving 40,686 shares held indirectly through a trust and 50,000 shares held indirectly by his spouse.
Following these entries, Gates also reports 52,864 shares held directly. A footnote states that the 10,000 shares were donated to a Charitable Gift Fund and that the reported amounts include shares subject to unvested restricted stock units, so part of his position is still vesting over time.