Aehr Test Systems Form 4 Filings

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 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 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.

AEHR TEST SYSTEMS executive Alistair N. Sporck reported routine equity activity involving company stock. The filing shows that 133 shares of common stock at $88.48 per share were withheld to cover tax obligations when restricted stock units vested, which the company notes does not represent a sale by Sporck. After this tax withholding, he directly holds 20,161 shares of common stock and indirectly holds 5,177 shares through a trust, and the indirect amount includes shares subject to unvested restricted stock units. The transactions reflect compensation and tax mechanics rather than open-market trading.

AEHR Test Systems executive Vernon Rogers reported a routine tax-related share disposition. On this Form 4, 139 shares of Common Stock were withheld at $88.48 per share to cover tax obligations when restricted stock units vested. The filing notes this was not an open-market sale. After this withholding, Rogers directly held 147,577 shares, which the filing states includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS CTO Donald P. Richmond II reported a small tax-related share disposition. On this Form 4, 102 shares of common stock were withheld at $88.48 per share to cover tax obligations upon vesting of restricted stock units. The footnote clarifies this was not an open-market sale. After this withholding, he directly holds 181,410 shares, including shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS President and CEO Gayn Erickson had 851 shares of common stock withheld at $88.48 per share to cover tax obligations when restricted stock units vested. This was a tax-withholding event, not an open-market sale.

After this transaction, Erickson holds 184,660 shares directly. An additional 197,723 shares are held indirectly by a trust, and this indirect amount includes shares subject to unvested restricted stock units and unvested restricted shares.

AEHR TEST SYSTEMS Chief Operating Officer Adil Engineer reported a routine tax-related share disposition. On the vesting of restricted stock units, 143 shares of common stock were withheld at $88.48 per share to satisfy tax withholding obligations. This was not an open-market sale. Following the withholding, Engineer holds 40,912 shares directly, and this amount includes shares subject to unvested restricted stock units.

Aehr Test Systems director Rhea J. Posedel reported open-market sales of company stock. On April 22, 2026, a trust associated with Posedel sold 604 shares of Aehr Test Systems common stock at $95.00 per share, reported as indirect ownership.

On the same date, Posedel directly sold an additional 17,115 shares at $100.00 per share. After these transactions, filings show 396,375 shares held indirectly by a trust and 45,261 shares held directly, with the indirect amount including shares subject to unvested restricted stock units. Overall, the activity reflects a partial reduction rather than an exit.

AEHR Test Systems executive Alistair N. Sporck, VP Contactor Business Unit, reported an indirect open‑market sale of 2,000 shares of common stock at $93.495 per share through a trust. After this transaction, the trust holds 5,177 shares indirectly. Sporck also reports 20,294 shares held directly, and this direct amount includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS EVP Alberto Salamone reported two open-market sales of common stock. He sold 15,000 shares at $94.56 on April 21, 2026 and 15,000 shares at $89.57 on April 20, 2026, totaling 30,000 shares sold.

After these sales, he directly holds 48,025 shares of AEHR common stock. A footnote states this amount includes shares subject to unvested restricted stock units, meaning part of his reported holdings are still vesting over time.

Aehr Test Systems director Howard T. Slayen reported a charitable stock gift. He transferred 1,800 shares of Common Stock as a bona fide gift at a stated price of $0.00 per share. The shares were donated to a Donor Advised Charitable Giving Fund.

After the gift, Slayen directly owns 176,528 shares of Aehr Test Systems common stock, and this amount includes shares subject to unvested restricted stock units. The filing shows no option exercises or open-market stock purchases or sales, only this charitable transfer.

Aehr Test Systems director Geoffrey Scott reported net open-market sales of 60,000 shares of Common Stock. Entities associated with him sold 50,000 shares at $95.00 per share through his spouse and 10,000 shares at $91.00 per share through a trust.

Following these transactions, he reports 52,864 shares held directly, 50,000 shares held indirectly by his spouse, and 50,686 shares held indirectly by a trust. The reported amounts include shares subject to unvested restricted stock units.

Aehr Test Systems executive Vernon Rogers sold 5,000 shares of Common Stock in an open-market transaction at $90.00 per share. After the sale, he directly holds 147,716 shares, which the disclosure states include shares subject to unvested restricted stock units. The transaction represents a small portion of his reported holdings and reflects a routine sale by the company’s Executive Vice President of Sales & Marketing.

Aehr Test Systems director Rhea J. Posedel reported an open-market sale of 8,787 shares of Common Stock at an average price of $96.0233 per share. The transaction occurred on April 21, 2026 and was recorded as a non-derivative sale.

Following the sale, she directly holds 62,376 Aehr shares. A separate indirect holding entry shows 396,979 shares held by a trust, and a footnote explains that this amount includes shares subject to unvested restricted stock units.

Aehr Test Systems executive vice president of sales and marketing Vernon Rogers reported an open-market sale of 6,486 shares of Common Stock at $94.0904 per share on April 21, 2026.

After this transaction, he directly holds 152,716 shares, and this figure includes shares underlying unvested restricted stock units. The sale amounts to roughly a small single-digit percentage of his reported holdings.

AEHR TEST SYSTEMS executive Alistair N. Sporck reported updated holdings of company stock. A Form 4 entry shows 341 shares of Common Stock were withheld at $83.86 per share to satisfy tax obligations upon the vesting of restricted stock units, which the footnote clarifies is not an open-market sale.

After this tax-withholding transaction, Sporck directly holds 20,294 shares of Common Stock, and an additional 7,177 shares are held indirectly through a trust. The disclosed direct holdings figure also includes shares underlying unvested restricted stock units.

Aehr Test Systems executive Vernon Rogers sold 2,431 shares of Common Stock in an open-market transaction at $90.00 per share. After this sale, he directly holds 159,202 shares. A footnote explains that this remaining amount includes shares underlying unvested restricted stock units.

AEHR TEST SYSTEMS director Rhea J. Posedel reported an open-market sale of 7,500 shares of Common Stock at $88.09 per share through a trust. After this indirect transaction, the trust holds 396,979 shares. A separate entry shows 71,163 shares held directly, which includes shares subject to unvested restricted stock units.

Aehr Test Systems director Fariba Danesh exercised options and sold shares in a linked transaction. Danesh exercised 8,000 Non-Qualified Options for Common Stock at $2.25 per share, then sold 8,000 Common shares at an average price of $82.63 on the same date.

After these transactions, Danesh directly holds 13,143 Common shares, and the reported amount includes shares subject to unvested restricted stock units. No derivative options remain from this specific grant following the exercise.

AEHR Test Systems director Rhea J. Posedel reported an open-market sale of 7,500 shares of Common Stock on April 17, 2026 at $82.00 per share, executed through an account held indirectly "By Trust". After this transaction, the trust still holds 404,479 shares, and Posedel also reports 71,163 shares held directly. A footnote notes that these reported amounts include shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS director Howard T. Slayen sold 25,000 shares of Common Stock in an open-market transaction at $85.00 per share. After this sale, he directly holds 178,328 shares. The reported holdings include shares subject to unvested restricted stock units, which may vest over time under company equity award terms.

Aehr Test Systems director Laura Oliphant reported an open-market sale of 1,716 shares of Common Stock on April 16, 2026 at $81.54 per share. After this transaction, she directly held 16,716 shares, and this amount includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS executive Vernon Rogers, Executive VP of Sales & Marketing, reported an open-market sale of company common stock. On April 16, 2026, he sold 5,000 shares at $86.88 per share. Following this transaction, he directly holds 161,633 shares, which include shares subject to unvested restricted stock units.

AEHR Test Systems VP Alistair N. Sporck sold shares in the company. On April 16, 2026, he executed an open-market sale of 2,000 shares of common stock at $81.8800 per share. After this sale, he directly holds 20,635 shares and indirectly holds 7,177 shares through a trust.

A footnote explains that the reported amounts include shares subject to unvested restricted stock units, meaning some of his reported holdings are still vesting and not yet fully unrestricted.

AEHR Test Systems director Laura Oliphant reported an indirect sale of 4,665 shares of Common Stock at an average price of $85.5879 per share. The shares were held by a trust, and this transaction reduced that indirect position to zero shares. After the sale, she continues to hold 18,432 shares directly, which include shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS director Rhea J. Posedel, through a trust, sold 15,000 shares of common stock in an open-market transaction at $80.72 per share.

After the sale, the trust holds 411,979 shares, including shares subject to unvested restricted stock units, and Posedel also holds 71,163 shares directly.

Aehr Test Systems director Geoffrey Scott Gates filed an amended Form 4 to correct details of previously reported stock sales on April 9, 2026. The amendment updates share counts and prices for his spouse’s indirect open-market sales of company common stock.

The corrected data show three sales totaling 40,000 shares of common stock at prices of $68.00, $68.12, and $67.79 per share. After these transactions, his spouse held 100,000 shares indirectly, while he also held 52,864 shares directly and 60,686 shares indirectly through a trust.

AEHR Test Systems executive Didier Wimmers reported open-market sales of 5,400 shares of common stock. He sold 3,500 shares on April 13, 2026 at an average price of $71.1102 per share and 1,900 shares on April 15, 2026 at an average price of $72.0239.

After these transactions, Wimmers directly holds 10,659 shares of AEHR common stock, and this amount includes shares subject to unvested restricted stock units. All reported transactions were classified as open-market sales.

Aehr Test Systems CTO Donald P. Richmond II sold 17,011 shares of Common Stock in an open-market transaction. The shares were sold at an average price of $73.1764 per share. Following this sale, he directly holds 181,512 shares, which include shares subject to unvested restricted stock units.

AEHR Test Systems President and CEO Gayn Erickson had 2,784 shares of common stock withheld at $74.38 per share to cover tax obligations when restricted stock units and restricted shares vested. This was a tax-withholding event, not an open-market sale. After these withholdings, he holds 185,511 shares directly and 197,723 shares indirectly through a trust, including unvested restricted stock units and restricted shares.

AEHR Test Systems CFO Chris Siu reported a routine tax-related share withholding tied to equity compensation. On the RSU vesting date, 697 shares of common stock were withheld at an implied price of $70.43 per share to satisfy tax withholding obligations, and this was not an open-market sale. Following the withholding, Siu directly owns 70,740 common shares. He also has 7,306 shares held indirectly through a trust, and this amount includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS executive Vernon Rogers, Exec VP of Sales & Marketing, reported routine tax-related share withholdings tied to vesting of restricted stock units. On April 14, 2026, 404 shares of common stock were withheld at $74.38 per share to satisfy tax obligations. On April 11, 2026, 503 shares were similarly withheld at $70.43 per share. A footnote clarifies these are tax-withholding dispositions and do not represent open-market sales. After these transactions, Rogers directly holds 166,633 shares of common stock, which the disclosure notes includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS Chief Technology Officer Donald P. Richmond II reported routine tax-related share dispositions tied to restricted stock unit vesting, not open-market sales. A total of 722 shares of common stock were withheld to cover tax obligations at prices of $74.38 and $70.43 per share.

After these withholding transactions, Richmond directly holds 198,523 shares of AEHR common stock, which the disclosure states includes shares subject to unvested restricted stock units. The filing clarifies that the withheld shares do not represent a sale by the reporting person.

Aehr Test Systems President and CEO Gayn Erickson reported significant insider sales of Common Stock alongside a routine tax withholding. On April 10, 2026, he executed open-market sales totaling 152,824 shares at about $70.5831 per share, including both direct holdings and shares held indirectly by a trust.

On April 11, 2026, an additional 3,704 shares were disposed of at $70.4300 to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares, which the footnotes clarify does not represent a sale by the reporting person. After these transactions, Erickson holds 188,295 shares directly and 197,723 shares indirectly through a trust.

AEHR Test Systems vice president Alistair N. Sporck reported one open-market sale and one tax-related share withholding. On April 10, 2026, he sold 2,000 shares of common stock at $67.365 per share. On April 11, 2026, 220 shares were withheld to satisfy tax obligations upon vesting of restricted stock units, which the disclosure states does not represent a sale. Following these events, he holds 22,635 shares directly, and an additional 7,177 shares are held indirectly by a trust.

Aehr Test Systems Chief Operating Officer Adil Engineer reported several stock transactions. On April 9, he completed open-market sales totaling 3,728 shares of common stock at prices around $66.27–$66.32 per share, leaving him with 41,441 shares after those sales.

On April 11, 386 shares were withheld at $70.43 per share to cover tax obligations when restricted stock units vested. A footnote clarifies this withholding does not represent a sale by the executive. After all reported transactions, Engineer directly holds 41,055 shares, which includes shares subject to unvested restricted stock units.

Aehr Test Systems director Fariba Danesh exercised stock options and sold shares. On April 13, 2026, she exercised a non-qualified option to acquire 7,000 shares of common stock at $2.25 per share, then sold 7,000 shares at an average price of $71.4901. On April 10, 2026, she also sold 3,500 shares at $70.045 per share in open-market transactions. After these trades, she directly held 13,143 shares of common stock, and this amount includes shares subject to unvested restricted stock units.

Aehr Test Systems executive Vernon Rogers reported an open-market sale of 10,888 shares of Common Stock at $70.00 per share. After this transaction, he directly holds 167,540 shares. The reported holdings include shares that are subject to unvested restricted stock units.

AEHR Test Systems Chief Operating Officer Adil Engineer exercised stock options and sold shares in the company. He exercised options to acquire 10,582 shares of common stock at an exercise price of $9.45 per share, then sold 13,085 shares in open-market transactions at prices around the high‑$68 range. After these transactions, he directly holds 45,169 shares of AEHR common stock, and this amount includes shares underlying unvested restricted stock units.

AEHR Test Systems CTO Donald P. Richmond II reported an open-market sale of 15,751 shares of Common Stock on April 9, 2026 at an average price of $68.6849 per share. After this transaction, he directly holds 199,245 shares, which the footnote states includes shares subject to unvested restricted stock units.

AEHR TEST SYSTEMS director Laura Oliphant reported an open-market sale of common stock by a trust associated with her. The trust sold 3,000 shares of AEHR common stock at a price of $68.3575 per share on April 9, 2026. After this transaction, the trust continued to hold 4,665 shares indirectly. Separately, Oliphant also reported direct ownership of 18,432 shares of common stock, some of which are subject to unvested restricted stock units.

Aehr Test Systems director Rhea J. Posedel, through a trust, sold 30,000 shares of common stock in an open-market transaction at $70.00 per share on April 9, 2026. After this sale, the trust still holds 426,979 shares indirectly, and Posedel also holds 71,163 shares directly. The indirect holdings include shares subject to unvested restricted stock units, indicating a continuing equity stake tied to ongoing service or vesting conditions.

Aehr Test Systems director Geoffrey Scott Gates reported indirect open-market sales of AEHR common stock made by his spouse. On April 9, 2026, the spouse sold a total of 35,000 shares in three transactions at prices between $67.75 and $68.00 per share.

After these sales, the filing shows the spouse holding 105,000 indirect shares, while an additional 60,686 shares are held indirectly by a trust and 52,864 shares are held directly by Gates. A footnote states the reported amounts include shares subject to unvested restricted stock units.

Aehr Test Systems President and CEO Gayn Erickson filed an amended Form 4 to correct previously reported share counts and ownership form, not to report new trades. The filing confirms a prior tax-withholding disposition of 2,512 shares of Common Stock at $44.32 per share, after which he held 248,787 shares directly. It also clarifies that 2,131 shares at $6.67 per share are held indirectly by a trust, with 293,759 shares beneficially owned through that trust. The footnotes state that earlier Form 4 values for post-transaction holdings and the direct/indirect ownership designation were inaccurate and are now corrected.

AEHR Test Systems Executive VP of R&D Didier Wimmers completed an internal share purchase through the company’s employee stock purchase plan. On April 1, 2026, he acquired 1,873 shares of common stock at $6.6725 per share.

Following this transaction, Wimmers directly holds 16,059 shares of AEHR common stock, which includes shares tied to unvested restricted stock units. The purchase was made under the company’s tax-qualified Employee Stock Purchase Plan, which is treated as a tax-conditioned plan under Internal Revenue Code Section 423 and is exempt from certain short-swing trading liability rules.

Aehr Test Systems VP Alistair N. Sporck reported routine share movements involving compensation and employee purchase activity. On April 2, 298 shares of common stock at $44.32 per share were withheld to satisfy tax obligations upon vesting of restricted stock units, which the company states does not represent a sale. After this, he held 24,855 shares directly, including shares subject to unvested restricted stock units. On April 1, a separate 1,963-share transaction at $6.6725 per share, held indirectly by a trust, reflects shares purchased through the company’s employee stock purchase plan, which is described as a tax-conditioned plan exempt from certain Section 16 short-swing liability, with 7,177 shares held indirectly following that transaction.

AEHR Test Systems CFO Chris Siu reported routine equity-related transactions in company stock. On April 2, 821 shares of common stock at $44.32 per share were withheld to cover tax obligations upon vesting of restricted stock units, which the company notes is not a market sale. On April 1, 2,095 shares at $6.6725 per share were acquired through the company’s Employee Stock Purchase Plan and are held indirectly in a trust. Following these transactions, Siu holds 71,437 shares directly and 7,306 shares indirectly, with the indirect amount including shares subject to unvested restricted stock units.