Every Form 4 that Aehr Test Systems (AEHR) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow AEHR and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full AEHR filings page.
AEHR TEST SYSTEMS executive Alberto Salamone reported routine equity compensation-related transactions. On April 2, 2026, 553 shares of common stock were withheld at $44.32 per share to cover tax obligations upon vesting of restricted stock units, which the disclosure states does not represent a sale by Salamone. On April 1, 2026, 1,672 shares of common stock were purchased through the company’s Amended and Restated 2006 Employee Stock Purchase Plan, described as a tax-conditioned plan under Internal Revenue Code Section 423. Following these transactions, Salamone directly held 78,025 shares of AEHR common stock, and this amount includes shares subject to unvested restricted stock units.
Aehr Test Systems executive Vernon Rogers reported routine equity compensation activity. On April 1, he acquired 1,558 shares of common stock at $6.6725 per share through the company’s Amended and Restated 2006 Employee Stock Purchase Plan, described as a tax-conditioned plan under Section 423 of the Internal Revenue Code and exempt from Section 16 short-swing rules.
On April 2, 336 shares of common stock valued at $44.32 per share were withheld to cover tax obligations when restricted stock units vested, which the disclosure clarifies is not a sale by Rogers. After these transactions, he directly holds 178,428 shares, and the reported amount includes shares underlying unvested restricted stock units.
Aehr Test Systems CTO Donald P. Richmond II reported routine equity compensation activity. On April 1, he acquired 2,120 shares of common stock 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.
On April 2, 341 shares of common stock were withheld to satisfy tax obligations upon vesting of restricted stock units, which the company clarifies does not represent a sale by the reporting person. After these transactions, he directly owns 214,996 shares of common stock, and this amount includes shares subject to unvested restricted stock units.
AEHR Test Systems President and CEO Gayn Erickson reported routine share movements tied to equity compensation and tax obligations. On one date, 2,512 shares of common stock were withheld at $44.32 per share to cover tax liabilities upon vesting of restricted stock units, which a footnote clarifies does not represent a sale by him. A separate entry records 2,131 shares at $6.6725 per share as an “other” transaction, with a footnote noting certain shares were purchased through the company’s Amended and Restated 2006 Employee Stock Purchase Plan. Following these events, Erickson holds 250,918 shares directly and 291,628 shares indirectly through a trust.
AEHR TEST SYSTEMS Chief Operating Officer Adil Engineer reported routine equity compensation transactions. On April 1, 2026, he acquired 2,454 shares of common stock 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.
On April 2, 2026, 458 shares of common stock valued at $44.32 per share were withheld to satisfy tax obligations upon vesting of restricted stock units, which the disclosure states does not represent a sale by the reporting person. After these transactions, Engineer directly owned 47,672 shares of common stock, and this amount includes shares subject to unvested restricted stock units.
Aehr Test Systems director Geoffrey Scott reported a charitable stock transfer. On a Form 4, he disclosed a bona fide gift of 5,104 shares of common stock to the Scott Family Fund. After the donation, he directly owns 52,864 shares and indirectly holds 60,686 shares through a trust and 140,000 shares through his spouse, with some amounts including unvested restricted stock units.
AEHR Test Systems Executive VP of R&D Didier Wimmers reported a tax-related share withholding tied to restricted stock units. On March 3, 2026, 364 shares of common stock were withheld at $41.64 per share to cover tax obligations, not as an open-market sale. Following this, he held 14,186 shares, which the disclosure notes includes unvested restricted stock units.
AEHR TEST SYSTEMS CFO Chris Siu reported a tax-related share withholding transaction. On March 1, 2026, 368 shares of common stock were withheld at $37.43 per share to satisfy tax obligations upon vesting of restricted stock units, which the footnotes clarify does not represent a sale by the reporting person.
Following this transaction, Siu directly owned 72,258 shares of common stock, and an additional 5,211 shares were held indirectly by a trust. The indirect position is reported as a holding entry, without a specified buy or sell action.
Aehr Test Systems director Rhea J. Posedel reported an insider sale of common stock through a trust associated with her. On February 13, 2026, the trust sold 13,998 shares of Aehr Test Systems common stock in an open-market transaction at $30.0151 per share.
After this transaction, the trust continued to hold 456,979 shares indirectly. Posedel also directly held 71,163 shares, and this direct amount includes shares subject to unvested restricted stock units.
Aehr Test Systems officer Alistair N. Sporck reported selling company stock. On 02/09/2026, Sporck, VP Contactor Business Unit, sold 2,700 shares of common stock at $27.57 per share and 300 shares at $27.59 per share, leaving 25,153 shares held directly and 5,214 shares held indirectly by a trust, which include shares subject to unvested restricted stock units.
Aehr Test Systems director Howard T. Slayen reported gifting 15,000 shares of common stock to family trusts. On 02/04/2026, he made three separate transfers of 5,000 shares each at a reported price of $0 per share, reflecting non-cash gifts.
The gifts went to the Leila James Slayen Trust, the Allison Elizabeth Slayen Trust, and the Max William Slayen Trust. After these transactions, Slayen beneficially owned 203,328 shares of Aehr Test Systems common stock, which the filing states includes shares subject to unvested restricted stock units.
AEHR Test Systems executive Alberto Salamone reported a small insider transaction related to equity compensation. On February 1, 2026, 234 shares of common stock were withheld at $25.64 per share to cover tax obligations when his restricted stock units vested. The filing explains this was not an open-market sale, but a share withholding for taxes. After this transaction, he beneficially owns 76,906 shares of AEHR common stock, which includes shares subject to unvested restricted stock units.
Aehr Test Systems vice president Alistair N. Sporck reported a routine tax-related share withholding tied to equity compensation. On January 27, 2026, 152 shares of common stock were withheld at $27.75 per share to satisfy tax obligations upon vesting of restricted stock units, which is not an open market sale.
After this transaction, Sporck beneficially owned 28,153 shares of Aehr Test Systems common stock directly, including shares subject to unvested restricted stock units, and 5,214 shares indirectly through a trust.
Aehr Test Systems executive Vernon Rogers reported a small tax-related share withholding. On January 27, 2026, 160 shares of common stock were withheld at $27.75 per share to cover tax obligations triggered by the vesting of restricted stock units.
This transaction is coded "F," indicating a tax withholding rather than an open-market sale, and the disclosure states it does not represent a sale by the reporting person. After this event, Rogers beneficially owned 177,206 shares of Aehr Test Systems common stock, which includes shares underlying unvested restricted stock units.
AEHR Test Systems CTO Donald P. Richmond II reported an automatic share withholding related to equity compensation. On 01/27/2026, 117 shares of common stock were withheld at $27.75 per share to cover tax obligations on vesting restricted stock units, which is not a market sale. Following this, he beneficially owned 213,217 shares directly, including shares subject to unvested restricted stock units.
Aehr Test Systems President and CEO Erickson Gayn, also a director, reported an automatic share withholding related to equity compensation. On January 27, 2026, 820 shares of common stock were withheld at $27.75 per share to cover tax obligations on vested restricted stock units, which is not a market sale.
After this transaction, Gayn beneficially owned 251,299 shares of common stock directly. He also reported an additional 291,628 shares held indirectly through a trust, which includes shares subject to unvested restricted stock units and unvested restricted shares.
AEHR TEST SYSTEMS Chief Operating Officer ENGINEER ADIL reported an automatic share withholding related to equity compensation. On 01/27/2026, 163 shares of common stock were withheld at $27.75 per share to cover tax obligations upon vesting of restricted stock units, which the company notes does not represent a sale. After this transaction, ADIL beneficially owned 45,676 common shares, including shares subject to unvested restricted stock units, all held in direct ownership.
AEHR TEST SYSTEMS director Laura Oliphant reported multiple open-market sales of common stock. On January 22, 2026, she sold 3,100, 1,026, 180, 100, and 140 shares of AEHR common stock at prices ranging from $31.38 to $31.485 per share.
After these transactions, she beneficially owned 18,432 shares directly and 7,665 shares indirectly through a trust. The directly held amount includes shares subject to unvested restricted stock units.
Aehr Test Systems officer Alistair N. Sporck reported a tax-related share withholding on company stock. On 01/19/2026, 387 shares of common stock were withheld at a price of $28.81 per share to cover tax obligations upon the vesting of restricted stock units. The filing clarifies that this was not a sale by the reporting person, but a share withholding for taxes.
After this transaction, Sporck beneficially owned 28,305 shares of Aehr Test Systems common stock directly, which includes shares subject to unvested restricted stock units. In addition, the filing reports 5,214 shares held indirectly through a trust.
AEHR Test Systems executive Vernon Rogers reported a routine tax-related share withholding. On 01/14/2026, 464 shares of AEHR common stock were withheld at $25.97 per share to cover tax obligations that arose when restricted stock units vested. The company notes this withholding does not represent a sale by the executive.
After this transaction, Rogers beneficially owned 177,366 shares, which includes shares underlying unvested restricted stock units. The filing reflects the executive’s updated equity position rather than an open-market trade.
AEHR TEST SYSTEMS chief technology officer Donald P. Richmond II reported a routine tax-related share withholding. On 01/14/2026, 343 shares of common stock were withheld at a price of $25.97 per share to cover tax obligations triggered by the vesting of restricted stock units, and this was not an open-market sale. After this transaction, he beneficially owned 213,334 shares, which include shares subject to unvested restricted stock units, all held in direct ownership form.
AEHR Test Systems President and CEO Erickson Gayn reported a tax-related share withholding rather than an open-market sale. On January 14, 2026, 2,680 shares of common stock were withheld at $25.97 per share to cover tax obligations triggered by the vesting of restricted stock units and restricted shares, and the filing states this does not represent a sale by the reporting person. Following this transaction, Gayn directly beneficially owned 252,119 shares of common stock and indirectly beneficially owned 291,628 shares through a trust, with the indirect holdings reported as "By Trust."
Aehr Test Systems VP of Engineering filed an amended Form 4 to correct previously reported figures related to a tax withholding transaction on common stock dated 01/11/2026. The amendment clarifies that 486 shares were withheld to satisfy tax obligations at a price of $26.32 per share, rather than the 576 shares originally reported. It also updates the officer’s direct beneficial ownership after the transaction from the previously stated 213,587 shares to the correct total of 213,677 common shares.
AEHR TEST SYSTEMS President and CEO Erickson Gayn reported tax-related share withholding, not an open-market sale. On January 11, 2026, 3,531 shares of AEHR common stock were withheld at $26.32 per share to cover tax obligations triggered by the vesting of restricted stock units and restricted shares, as explained in the footnote.
After this transaction, Gayn beneficially owned 254,799 shares of common stock directly and 291,628 shares indirectly through a trust. The indirect amount includes shares subject to unvested restricted stock units and unvested restricted shares.
AEHR TEST SYSTEMS executive Vernon Rogers reported a routine tax-related share withholding tied to restricted stock units. On 01/11/2026, 576 shares of common stock were withheld at $26.32 per share to cover tax obligations when his restricted stock units vested, and this was not an open-market sale by Rogers. Following this transaction, he beneficially owned 177,830 shares of AEHR common stock, which the disclosure notes includes shares subject to unvested restricted stock units.
AEHR TEST SYSTEMS CTO Donald P. Richmond II reported a routine share withholding transaction related to equity compensation. On 01/11/2026, 576 shares of common stock were withheld at $26.32 per share to cover tax obligations that arose when restricted stock units vested. The filing states this does not represent a sale by the reporting person, but an administrative tax withholding.
After this transaction, Richmond beneficially owned 213,587 shares of AEHR Test Systems common stock, and this amount includes shares subject to unvested restricted stock units. The filing confirms that these holdings are reported as directly owned.
AEHR Test Systems chief financial officer Siu Chris reported an automatic share withholding related to equity compensation. On January 11, 2026, 799 shares of common stock were withheld at $26.32 per share to cover tax obligations when restricted stock units vested, which the filing clarifies does not represent a sale by the executive. After this transaction, the CFO beneficially owned 72,626 shares of AEHR common stock directly, and an additional 5,211 shares held indirectly by a trust. The reported direct holdings include shares underlying unvested restricted stock units.
AEHR TEST SYSTEMS VP Contactor Business Unit Alistair N. Sporck filed a Form 4 reporting a tax-related share withholding. On January 11, 2026, 239 shares of common stock were withheld at $26.32 per share to satisfy tax obligations upon the vesting of restricted stock units, and this is explicitly stated as not a sale by the reporting person.
After this withholding, Sporck beneficially owns 28,692 shares of common stock directly, which include shares subject to unvested restricted stock units, and an additional 5,214 shares indirectly held by a trust.
Aehr Test Systems Chief Operating Officer Engineer Adil reported an automatic share withholding related to restricted stock units, not an open-market sale. On January 11, 2026, 444 shares of common stock were withheld at $26.32 per share to cover tax obligations when restricted stock units vested. After this entry, Adil beneficially owned 45,839 shares of Aehr Test Systems common stock, which includes shares subject to unvested restricted stock units.
Aehr Test Systems director reported an open‑market sale of 6,000 shares of common stock on November 5, 2025 at a weighted average price of $25.7262, with individual trades executed between $25.50 and $25.99.
Following the transaction, the reporting person beneficially owned 218,328 shares, held directly. The filing notes that this amount includes shares subject to unvested restricted stock units.
AEHR Test Systems reported an insider transaction on a Form 4. On November 3, 2025, an officer (EVP, PPBI Business) had 203 shares of common stock withheld to cover taxes upon the vesting of restricted stock units, coded F at $25.99 per share. This was a tax withholding event, not a market sale by the insider.
Following the transaction, the insider beneficially owns 77,776 shares. The reported total includes shares subject to unvested restricted stock units.
Aehr Test Systems (AEHR) reported an insider equity transaction by its CTO. On 10/27/2025, 102 shares of common stock were withheld at $25.14 to cover tax obligations upon the vesting of restricted stock units; this was not an open‑market sale by the reporting person.
Following this tax withholding, the reporting person beneficially owned 214,518 shares directly. The reported total includes shares subject to unvested restricted stock units.
Aehr Test Systems executive reported a routine tax-withholding transaction. On 10/27/2025, the VP, Contactor Business Unit had 132 shares withheld at $25.14 per share (code F) to cover taxes upon RSU vesting; this was not an open‑market sale.
Following the transaction, the reporting person beneficially owned 29,228 shares directly and 5,214 shares indirectly through a trust.
Aehr Test Systems (AEHR) President and CEO, also a director, reported a routine Form 4 transaction. On 10/27/2025, 819 shares of common stock were withheld at $25.14 under code “F” to satisfy tax obligations upon RSU vesting; this is not a market sale.
Following the transaction, beneficial ownership stands at 261,095 shares direct and 291,628 shares indirect by trust. The reported amounts include shares subject to unvested restricted stock units and unvested restricted shares.
Aehr Test Systems (AEHR) Chief Operating Officer filed a Form 4 reporting an automatic tax withholding related to RSU vesting. On 10/27/2025, 142 shares of common stock were withheld at $25.14 under transaction code F, which reflects shares withheld to cover taxes and is not a sale by the reporting person. Following the transaction, the officer directly beneficially owned 46,784 shares, which the filing notes include shares subject to unvested RSUs.
AEHR Test Systems reported an insider transaction by its Executive VP of Sales & Marketing. On 10/27/2025, the officer had 197 shares of common stock withheld to satisfy tax obligations upon the vesting of restricted stock units, coded F at $25.14 per share. The filing notes this was a tax withholding and not a sale by the reporting person.
Following the transaction, the officer beneficially owned 178,792 shares directly. The reported total includes shares subject to unvested restricted stock units.
Aehr Test Systems reported an insider transaction by its Exec VP of Sales & Marketing. On 10/22/2025, the officer exercised options and acquired 110,283 and 185 shares of common stock at an exercise price of $2.03 per share (transaction code M).
Following these transactions, the officer reported 178,989 shares beneficially owned, held directly. The exercised options were from grants dated 11/23/2018 with expiration on 10/23/2025, and the remaining derivative balance for these grants is 0. A footnote states the reported amount includes shares subject to unvested restricted stock units.
Aehr Test Systems (AEHR) Form 4: A company officer reported an automatic share withholding tied to RSU vesting on 10/20/2025. 336 shares of common stock were withheld at $24.76 to cover taxes (Transaction Code F), which is not a market sale. After the transaction, the officer reports 29,360 shares held directly and 5,214 held indirectly by a trust.
Aehr Test Systems reported an amended Form 4 for an officer (Exec. VP Sales and Marketing) to correct prior-day disclosures. The filing updates tax-withholding share counts tied to equity transactions and the resulting ownership totals.
Corrected figures: 502 shares were withheld at $25.52 on 10/13/2025 (Code F), and 403 shares were withheld at $27.29 on 10/14/2025 (Code F). Beneficial ownership after these transactions was corrected to 68,924 shares following the 10/13 entry and 68,521 shares following the 10/14 entry.
Aehr Test Systems (AEHR) filed a Form 4 for an officer. On 10/13/2025, 208 shares of common stock were withheld (transaction code F) at $23.49 per share to satisfy tax withholding upon the vesting of restricted stock units; this was not an open-market sale.
Following the transaction, the reporting person beneficially owned 29,696 shares directly and 5,214 shares indirectly by trust. The filer is listed as an officer (VP Contractor Business Unit) and filed individually.
Aehr Test Systems (AEHR) CFO Siu Chris filed a Form 4 reporting a tax withholding transaction tied to restricted stock units. On 10/13/2025, 695 shares of common stock were withheld at $23.49 per share under code F (shares withheld for taxes upon RSU vesting), which the filer states is not a sale.
Following the transaction, the reporting person beneficially owns 74,714 shares directly and 5,211 shares indirectly by trust.
AEHR Test Systems officer filed a Form 4 reporting tax withholdings tied to RSU vesting. On 10/13/2025, 1,399 shares were withheld at $25.52 (Code F). On 10/14/2025, 1,125 shares were withheld at $27.29 (Code F). The filing states these are to satisfy tax obligations and are not sales by the reporting person. Following these entries, the officer directly beneficially owned 66,902 shares, which includes shares subject to unvested RSUs.
Aehr Test Systems officer (CTO) filed a Form 4 reporting automatic share withholdings to cover taxes upon RSU vesting. On 10/13/2025, 422 shares were withheld at $25.52 per share (transaction code F). On 10/14/2025, 298 shares were withheld at $27.29 per share (code F). The filing notes these entries do not represent sales by the reporting person.
Following these transactions, the officer reported beneficial ownership of 214,620 shares, which includes shares subject to unvested restricted stock units.
AEHR Test Systems reported insider transactions by its President and CEO/Director. On 10/13/2025 and 10/14/2025, the reporting person had F-code share withholdings to cover taxes upon vesting of equity awards: 3,791 shares at $25.52 and 3,448 shares at $27.29. The filer notes this does not represent a sale.
Following these transactions, beneficial ownership stood at 261,914 shares direct and 291,628 shares indirect by Trust. The direct amount reported includes shares subject to unvested restricted stock units and unvested restricted shares.
AEHR Test Systems reported an insider transaction by its Chief Operating Officer on a Form 4. On 10/13/2025, 385 shares of common stock were withheld at $25.52 under transaction code F to satisfy tax withholding obligations upon vesting of restricted stock units; this was not a sale by the reporting person.
Following the transaction, the officer beneficially owned 46,926 shares directly. The reported holdings include shares subject to unvested restricted stock units.
Aehr Test Systems director Danesh Fariba reported the sale of 9,000 shares of common stock on 10/09/2025, disclosed on a Form 4 filed under Section 16. The filing shows two sales: 2,665 shares at $24.87 and 6,335 shares at $24.755. After these transactions the form reports beneficial ownership levels of 22,978 and 16,643 shares (the latter figure includes unvested restricted stock units). The Form 4 was signed by an attorney-in-fact on 10/10/2025, indicating timely reporting of insider disposition activity.
AEHR Test Systems (AEHR) reporting person Erickson Gayn, who serves as President, CEO and a director, reported a non‑derivative transaction dated 10/02/2025 where 439 shares of common stock were withheld to satisfy tax withholding on vested restricted stock units at a price of $32.25. After the withholding, the filing reports 269,153 shares directly beneficially owned and 291,628 shares indirectly beneficially owned through a trust, with the total reported position including unvested restricted stock units and restricted shares. The filing clarifies the withholding was not a sale by the reporting person and discloses the relationship to the issuer as Officer and Director.
AEHR Test Systems (AEHR) Form 4 shows an insider transaction dated 10/02/2025 by Alistair N. Sporck, listed as a company officer. The filing records 51 shares removed from his holdings under Code F at a price of $32.25; the filer explains these shares were withheld to satisfy tax withholding on vested restricted stock units rather than sold on the open market. After the withholding, the reporting person is shown as beneficially owning 29,904 shares directly and 5,214 shares indirectly through a trust, with some shares still subject to unvested restricted stock units. The form is signed by an attorney-in-fact on 10/08/2025.
AEHR Test Systems (AEHR) Form 4 shows insider activity by Alberto Salamone, who is reported as an executive (EVP, PPBI Business). On 10/02/2025 the filing records 406 shares reported as disposed at a price of $32.25. The filing explains those shares were withheld to satisfy tax withholding upon vesting of restricted stock units and therefore do not represent a sale by the reporting person. After the transaction the reporting person beneficially owned 77,979 shares, a total that the filing states includes shares subject to unvested restricted stock units.
AEHR Test Systems (AEHR) chief financial officer Chris Siu reported a withholding-related disposition of 126 shares of common stock on 10/02/2025 at a price of $32.25 per share; the filing states these shares were withheld to satisfy tax withholding obligations upon vesting of restricted stock units and do not represent a sale by the reporting person. After the withholding, the report shows 75,409 shares beneficially owned directly and 5,211 shares beneficially owned indirectly by a trust, with the reported direct total including shares subject to unvested restricted stock units.