Aehr Test Systems (AEHR) Form 4 Filings

AEHR Test Systems director Narsing Krishna Vijayrao received a restricted stock unit award covering 2,169 shares of common stock on October 28, 2026, reported at 0.0000 per share. His direct holdings after the transaction were 3,169 shares, including shares subject to unvested restricted stock units. The award is subject to continued employment on vesting dates.

Alistair N. Sporck, VP Contactor Business Unit at AEHR TEST SYSTEMS, had 188 common shares withheld on October 27, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale. He reported 21,665 directly held shares afterward, including shares subject to unvested restricted stock units, and a separate indirect holding of 6,398 shares by trust.

Aehr Test Systems executive Vernon Rogers, Exec VP of Sales & Mktg., had 197 common shares withheld on October 27, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this did not represent a sale. The reported price was $63.95 per share. Rogers' reported post-transaction position was 186,682 shares, including shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS CTO Donald P. Richmond II had 145 shares withheld on October 27, 2026, to satisfy tax-withholding obligations upon vesting of restricted stock units; this was not a sale. The reported price was $63.95 per share. His reported post-transaction holdings were 186,583 shares, including shares subject to unvested restricted stock units. No Rule 10b5-1 plan is reported.

AEHR Test Systems President and CEO Gayn Erickson had 851 shares withheld on October 27, 2026, to satisfy tax-withholding obligations upon vesting of restricted stock units and restricted shares; this was not a sale. The reported price was $63.95 per share. After the transaction, his reported direct holdings were 190,257 shares, including unvested restricted stock units and restricted shares, and his reported indirect holdings through a trust were 158,776 shares.

AEHR TEST SYSTEMS Chief Operating Officer Adil Engineer had 202 shares of common stock withheld on October 27, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units. The reported price was $63.95 per share; a footnote states this was not a sale by the reporting person. His reported direct holdings after the transaction were 45,740 shares, including shares subject to unvested restricted stock units.

AEHR Test Systems director Rhea J. Posedel exercised 18,000 non-qualified options on October 20, 2026, at an exercise price of $1.77 per share, acquiring 18,000 common shares. Her direct common-share position following the transaction was 65,156 shares, including shares subject to unvested restricted stock units. The filing also lists 381,989 common shares held indirectly by trust. No Rule 10b5-1 plan is reported.

AEHR Test Systems CFO Chris Siu had 987 common shares withheld at a reported $84.64 per share on October 12, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale. His reported direct holdings afterward were 74,983 shares, including shares subject to unvested restricted stock units. He also reported 6,795 shares held indirectly by trust.

At AEHR TEST SYSTEMS (AEHR), Alistair N. Sporck, VP Contactor Business Unit, had 295 common shares withheld on October 12, 2026 to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale. The reported price per share was $84.64. His reported direct position afterward was 21,853 shares, including shares subject to unvested restricted stock units. He also reported 6,398 common shares held by trust.

Vernon Rogers, AEHR Test Systems' Exec VP of Sales & Mktg., had 426 shares withheld to satisfy tax withholding obligations upon vesting of restricted stock units on October 12, 2026; this did not represent a sale. His reported direct position afterward was 186,879 shares, including shares subject to unvested restricted stock units.

AEHR Test Systems CTO Donald P. Richmond II reported a tax-withholding disposition of 388 shares on October 12, 2026; the shares were withheld to satisfy tax obligations upon vesting of restricted stock units. The reported price was $84.64 per share, and the footnote states this was not a sale. His reported post-transaction amount was 186,728 shares, including shares subject to unvested restricted stock units.

AEHR Test Systems Chief Operating Officer Adil Engineer reported that 547 shares were withheld on October 12, 2026, to satisfy tax-withholding obligations upon restricted stock unit vesting; the footnote states this was not a sale. The reported price was $84.64 per share. His reported post-transaction amount was 45,942 shares, including shares subject to unvested restricted stock units.

AEHR Test Systems President and CEO Gayn Erickson had 2,675 common shares withheld on October 12, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares; the footnote states this was not a sale. His reported direct position after the transaction was 191,108 shares, including shares subject to unvested restricted stock units and unvested restricted shares. A separate holding entry lists 158,776 shares held indirectly by trust.

Aehr Test Systems President and CEO and director Gayn Erickson reported 3,239 shares withheld on October 2, 2026, to satisfy tax-withholding obligations upon vesting of restricted stock units and restricted shares; a footnote says this was not a sale. Reported holdings afterward were 193,783 shares directly, including shares subject to unvested restricted stock units and unvested restricted shares, and 158,776 shares indirectly through a trust.

AEHR Test Systems Chief Operating Officer Adil Engineer reported 620 shares withheld on October 2, 2026, to satisfy tax-withholding obligations upon vesting of restricted stock units and restricted shares. The transaction was not a sale. His reported post-transaction position was 46,489 shares, including shares subject to unvested restricted stock units.

AEHR Test Systems CTO Donald P. Richmond II had 439 common shares withheld on October 2, 2026, to satisfy tax-withholding obligations upon vesting of restricted stock units. The reported price was $107.21 per share; the footnote states that the withholding does not represent a sale. His reported holdings after the transaction were 187,116 shares, including shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS Exec VP of Sales & Mktg. Vernon Rogers had 476 shares withheld on October 2, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale. The reported price was $107.21 per share. His reported direct holdings after the transaction were 187,305 shares, including shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS executive vice president, PPBI Business Alberto Salamone reported 556 common shares withheld on October 2, 2026, to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale. The reported price was $107.21 per share. His reported post-transaction holdings were 42,873 shares, including shares subject to unvested restricted stock units. No Rule 10b5-1 plan is reported.

Aehr Test Systems CFO Chris Siu reported that 1,164 shares were withheld on October 2, 2026, at $107.21 per share to satisfy tax withholding obligations upon vesting of restricted stock units. The transaction was not a sale. Afterward, he reported 75,970 directly held shares, including shares subject to unvested restricted stock units, and 6,795 shares held indirectly by trust.

AEHR TEST SYSTEMS reported that VP Contactor Business Unit Alistair N. Sporck had 345 shares withheld on October 2, 2026, to satisfy tax-withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale. His direct post-transaction holding was 22,148 shares, including shares subject to unvested restricted stock units. A separate indirect holding lists 6,398 shares by trust.

Aehr Test Systems reported an indirect trust purchase of 1,053 shares through its Amended and Restated 2006 Employee Stock Purchase Plan at $6.6725 per share on October 1, 2026. President and CEO Gayn Erickson had 499 shares withheld for taxes upon vesting; this was not a sale. No Rule 10b5-1 plan is reported. After the transactions, the trust position was 158,776 shares and Erickson’s direct position was 197,022 shares, including shares subject to unvested restricted stock units and unvested restricted shares.

AEHR Test Systems VP Contactor Business Unit Alistair N. Sporck reported 54 shares withheld to satisfy tax obligations upon vesting of restricted stock units on October 1, 2026; the footnote says this was not a sale. His reported direct position afterward was 22,493 shares, including shares subject to unvested restricted stock units.

Separately, 1,221 shares were purchased through the company’s Amended and Restated 2006 Employee Stock Purchase Plan at $6.6725 per share and reported as held indirectly by a trust. The reported indirect position afterward was 6,398 shares. No Rule 10b5-1 plan is reported.

AEHR Test Systems Executive VP of R&D Didier Wimmers acquired 1,311 common shares at $6.6725 per share on October 1, 2026, through the company’s employee stock purchase plan. No Rule 10b5-1 plan is reported. On the same date, 54 shares were withheld at $101.60 per share to satisfy tax withholding obligations upon vesting of restricted stock units; the footnote says this was not a sale.

At AEHR Test Systems, executive vice president, PPBI Business, Alberto Salamone acquired 1,512 shares on October 1, 2026, through the company's Amended and Restated 2006 Employee Stock Purchase Plan, at $6.6725 per share. The same day, 45 shares were withheld to satisfy tax obligations upon vesting of restricted stock units; this does not represent a sale by Salamone. No Rule 10b5-1 plan is reported.

AEHR Test Systems Exec VP of Sales & Mktg. Vernon Rogers acquired 1,626 common shares on October 1, 2026, at $6.6725 per share through the company's Amended and Restated 2006 Employee Stock Purchase Plan, described as a tax-conditioned plan under Internal Revenue Code Section 423. Separately, 77 shares were withheld at a reported $101.6000 per share to satisfy tax withholding upon restricted stock unit vesting; this was not a sale. No Rule 10b5-1 plan is reported.

AEHR TEST SYSTEMS CTO Donald P. Richmond II reported acquiring 1,064 common shares on October 1, 2026, through the company's Amended and Restated 2006 Employee Stock Purchase Plan at $6.6725 per share. On the same date, 76 shares were withheld to satisfy tax-withholding obligations upon vesting of restricted stock units, at a reported $101.6000 per share; the footnote says this does not represent a sale by the reporting person.

AEHR Test Systems Chief Operating Officer Adil Engineer acquired 730 common shares on October 1, 2026, through the company’s Amended and Restated 2006 Employee Stock Purchase Plan at $6.6725 per share. The plan is described as a tax-conditioned plan under Internal Revenue Code Section 423. On the same date, 98 shares were withheld to satisfy tax obligations upon vesting of restricted stock units; the footnote says this was not a sale. No Rule 10b5-1 plan is reported.

AEHR Test Systems CFO Chris Siu reported two transactions on October 1, 2026. A trust acquired 1,089 shares through the company’s Amended and Restated 2006 Employee Stock Purchase Plan at $6.6725 per share, with a reported trust holding of 6,795 shares afterward. Separately, 194 shares were withheld for tax obligations upon restricted stock unit vesting; this was not a sale. Siu’s reported direct holdings afterward were 77,134 shares, including shares subject to unvested restricted stock units. No Rule 10b5-1 plan is reported.

AEHR TEST SYSTEMS (AEHR) reported that Executive VP of R&D Didier Wimmers had 317 shares of common stock withheld on September 3, 2026 to satisfy tax withholding obligations upon vesting of restricted stock units, which the company notes does not represent a market sale. Following this tax-withholding disposition, Wimmers holds 12,379 shares directly, including shares underlying unvested restricted stock units, and no Rule 10b5-1 trading plan is reported.

AEHR TEST SYSTEMS (AEHR) reported an insider equity transaction by CFO Chris Siu. On 2026-09-01, 496 shares of common stock were withheld at $76.59 per share to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares; this was not an open-market sale. Following this tax-withholding disposition, Siu directly held 77,328 shares, including shares subject to unvested restricted stock units, and indirectly held 5,706 shares by trust.

AEHR TEST SYSTEMS (AEHR) reported that executive officer Vernon Rogers, Exec VP of Sales & Marketing, sold a total of 5,994 shares of common stock in open market or private transactions. The sales occurred on August 14, 2026 (two trades of 1,000 shares at $134.00 and $139.00) and on August 17, 2026 (3,994 shares at $143.77). A footnote explains that the amount reported for one transaction includes shares subject to unvested restricted stock units. The Rule 10b5-1 trading plan checkbox was not marked as applying to these transactions.

AEHR TEST SYSTEMS Chief Operating Officer Adil Engineer reported a bona fide gift of 500 shares of Common Stock on 2026-08-14, donated to the Engineer Z&A Giving Fund. Following the donation, he holds 46,477 shares directly, which includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS director Howard T. Slayen reported a sale of 5,700 shares of Common Stock on August 14, 2026 at an average price of $133.0288 per share in an open-market or private transaction. Following this sale, he holds 140,667 shares directly, including shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS director Rhea J. Posedel, through a trust, reported selling 5,973 shares of common stock on 2026-08-14 in a sale described as an open market or private transaction at $140.00 per share. After this sale, the trust holds 381,989 indirect shares, and a separate line shows 47,156 direct shares, which include shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS executive Alberto Salamone reported two open-market sales of company common stock on 2026-08-13, totaling 9,672 shares. Shares were sold at per-share prices of $128.00 and $127.5014. A portion of the reported holdings includes shares subject to unvested restricted stock units.

Aehr Test Systems President and CEO Gayn Erickson reported two open-market sales of company common stock on August 12, 2026, totaling 40,000 shares held indirectly through a trust. The filing also reports 197,521 shares held directly after the transactions, including shares subject to unvested restricted stock units and unvested restricted shares.

Aehr Test Systems director Rhea J. Posedel reported selling 8,413 shares of common stock on August 12, 2026 at $130 per share through an entity classified as a trust. Following this sale, indirect holdings total 387,962 shares and direct holdings total 47,156 shares, which include shares subject to unvested restricted stock units.

Aehr Test Systems director Geoffrey Scott reported two indirect transactions in Common Stock on 2026-08-12. An entity associated with him made a bona fide gift of 6,731 shares held by a trust to the Scott Family Gift Fund, leaving 23,955 indirect trust shares. His spouse sold 20,000 indirect shares at $131.506 per share, leaving 10,000 indirect shares. Separately, he holds 51,648 shares directly, including shares subject to unvested restricted stock units. The transactions were not reported under a Rule 10b5-1 trading plan.

AEHR TEST SYSTEMS Chief Operating Officer Adil Engineer reported a same-day option exercise and sale sequence. He exercised options to acquire 15,000 shares of common stock at an exercise price of $9.45 per share, then sold 7,500 shares at $130.9549 and another 7,500 shares at $131.0950 per share. Following the derivative exercises, he reported remaining direct option holdings of 31,330 and 28,088 options in the respective grants. One reported amount of common stock includes shares subject to unvested restricted stock units.

Aehr Test Systems director Laura Oliphant reported a sale of 1,717 shares of Common Stock on 2026-08-12 in an open market or private transaction at $133.00 per share. Following this transaction, she reported holding 16,100 shares, which the company notes include shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS executive Alistair N. Sporck, VP Contactor Business Unit, reported selling 1,000 shares of common stock on 2026-08-10 at $108.49 per share. After the sale, he holds 22,547 directly (including unvested restricted stock units) and 5,177 shares indirectly through a trust.

Aehr Test Systems officer Alistair N. Sporck, Vice President of the Contactor Business Unit, reported selling a total of 2,000 shares of common stock on 2026-08-04 in two open-market transactions at $100.695 and $101.10 per share. The filing also reports 5,177 shares held indirectly by a trust, and notes that one reported share amount includes unvested restricted stock units.

Howard T. Slayen, a director of Aehr Test Systems, sold 20,000 shares of common stock on 2026-08-04 at an average price of $108.2961 per share in a sale classified as an open-market or private transaction. Following the sale, he directly holds 146,367 shares, which include shares subject to unvested restricted stock units.

Aehr Test Systems director Laura Oliphant donated 500 shares of common stock on August 4, 2026 as a bona fide gift to USA Triathlon Foundation. The transaction carried a reported per-share price of $0.0000, so no sale proceeds were received. Following the donation, she directly owns 17,817 shares, which include shares subject to unvested restricted stock units.

EVP Alberto Salamone of Aehr Test Systems reported that 204 shares of Common Stock were withheld on August 3, 2026 at $79.98 per share to satisfy tax withholding obligations upon vesting of restricted stock units. This was not an open-market sale. Following the withholding, he holds 51,634 shares, including shares subject to unvested restricted stock units.

AEHR Test Systems director Howard T. Slayen reported a bona fide gift of 5,000 shares of Common Stock on 2026-07-30. The shares were gifted to the Everett Drake Slayen Trust. Following this transfer, he directly holds 166,367 shares, which include shares subject to unvested restricted stock units.

Aehr Test Systems President and CEO Gayn Erickson reported a tax-related share withholding. On 2026-07-27, 1057.0000 common shares were withheld at $77.4800 per share to satisfy tax obligations on vesting equity awards, and the disclosure states this did not represent a sale by Erickson. After this, he held 197521.0000 shares directly, including unvested awards, and 197723.0000 shares indirectly through a trust.

Aehr Test Systems executive Vernon Rogers, Exec VP of Sales & Mktg., reported a tax-related share withholding on July 27, 2026. 198 shares of common stock were withheld at $77.48 per share to satisfy tax obligations upon vesting of restricted stock units, which the company notes does not represent a sale. After this transaction, Rogers directly holds 192,226 shares, and this amount includes shares subject to unvested restricted stock units.

Aehr Test Systems officer Alistair N. Sporck reported that 133 shares of common stock were withheld at $77.48 per share to satisfy tax withholding obligations upon vesting of restricted stock units; this was not an open‑market sale. After the withholding, he held 25,547 shares directly, including unvested RSUs, and 5,177 shares indirectly through a trust.