AEHR · Aehr Test Systems · Insider Trading

$60.60 -8.61 (-12.44%) At close · Oct 16

Russell 2000 member Rebalance outlook locked

Market Cap

$2.17B

32.62M

Volume · Oct 16 3.55M Avg daily vol (3M) 2.73M

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.

Query insider transactions through the insider trading API or MCP →

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-9

Net shares bought

-0.42%

Net buy value

-$17,304,581

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-10-12	SPORCK ALISTAIR N	VP Contactor Business Unit	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	295	$84.64	$24,969	21,853
2026-10-12	ENGINEER ADIL	Chief Operating Officer	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	547	$84.64	$46,298	45,942
2026-10-12	Erickson Gayn	Director, President and CEO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units and unvested restricted shares.	Common Stock	2,675	$84.64	$226,412	191,108
2026-10-12	ROGERS VERNON	Exec VP of Sales & Mktg.	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	426	$84.64	$36,057	186,879
2026-10-12	RICHMOND DONALD P. II	CTO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	388	$84.64	$32,840	186,728
2026-10-12	Siu Chris	CFO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	987	$84.64	$83,540	74,983
2026-10-02	SPORCK ALISTAIR N	VP Contactor Business Unit	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	345	$107.21	$36,987	22,148
2026-10-02	Erickson Gayn	Director, President and CEO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units and unvested restricted shares.	Common Stock	3,239	$107.21	$347,253	193,783
2026-10-02	Siu Chris	CFO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	1,164	$107.21	$124,792	75,970
2026-10-02	ENGINEER ADIL	Chief Operating Officer	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	620	$107.21	$66,470	46,489
2026-10-02	RICHMOND DONALD P. II	CTO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	439	$107.21	$47,065	187,116
2026-10-02	SALAMONE ALBERTO	EVP, PPBI BUSINESS	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	556	$107.21	$59,609	42,873
2026-10-02	ROGERS VERNON	Exec VP of Sales & Mktg.	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	476	$107.21	$51,032	187,305
2026-10-01	ENGINEER ADIL	Chief Operating Officer	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	98	$101.60	$9,957	47,109
2026-10-01	ROGERS VERNON	Exec VP of Sales & Mktg.	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	77	$101.60	$7,823	187,781
2026-10-01	SPORCK ALISTAIR N	VP Contactor Business Unit	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	54	$101.60	$5,486	22,493
2026-10-01	SALAMONE ALBERTO	EVP, PPBI BUSINESS	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	45	$101.60	$4,572	43,429
2026-10-01	ROGERS VERNON	Exec VP of Sales & Mktg.	Other↑ Filing footnotes — Common Stock (Direct) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock	1,626	$6.67	$10,849	187,858
2026-10-01	Erickson Gayn	Director, President and CEO	Other↑ Filing footnotes — Common Stock (Indirect) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock (I)	1,053	$6.67	$7,026	158,776
2026-10-01	WIMMERS DIDIER	Executive VP of R&D	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	54	$101.60	$5,486	13,636
2026-10-01	Erickson Gayn	Director, President and CEO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units and unvested restricted shares.	Common Stock	499	$101.60	$50,698	197,022
2026-10-01	Siu Chris	CFO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	194	$101.60	$19,710	77,134
2026-10-01	SPORCK ALISTAIR N	VP Contactor Business Unit	Other↑ Filing footnotes — Common Stock (Indirect) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock (I)	1,221	$6.67	$8,147	6,398
2026-10-01	RICHMOND DONALD P. II	CTO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	76	$101.60	$7,722	187,555
2026-10-01	ENGINEER ADIL	Chief Operating Officer	Other↑ Filing footnotes — Common Stock (Direct) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock	730	$6.67	$4,871	47,207
2026-10-01	SALAMONE ALBERTO	EVP, PPBI BUSINESS	Other↑ Filing footnotes — Common Stock (Direct) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock	1,512	$6.67	$10,089	43,474
2026-10-01	RICHMOND DONALD P. II	CTO	Other↑ Filing footnotes — Common Stock (Direct) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock	1,064	$6.67	$7,100	187,631
2026-10-01	WIMMERS DIDIER	Executive VP of R&D	Other↑ Filing footnotes — Common Stock (Direct) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock	1,311	$6.67	$8,748	13,690
2026-10-01	Siu Chris	CFO	Other↑ Filing footnotes — Common Stock (Indirect) These shares have been purchased through the company's Amended and Restated 2006 Employee Stock Purchase Plan, a "tax-conditioned plan" Per Internal Revenue Code Section 423. This purchase is exempt from Section 16 of the Securities Exchange Act of 1934 regarding liabilities arising from six-month short-swing transactions in the Company's securities.	Common Stock (I)	1,089	$6.67	$7,266	6,795
2026-09-03	WIMMERS DIDIER	Executive VP of R&D	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	317	$76.27	$24,178	12,379
2026-09-01	Siu Chris	CFO	Tax↓ Filing footnotes — Common Stock (Direct) Represents shares that were withheld to satisfy tax withholding obligations upon vesting of restricted stock units and restricted shares. This does not represent a sale by the Reporting Person. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	496	$76.59	$37,989	77,328
2026-08-17	ROGERS VERNON	Exec VP of Sales & Mktg.	Sell↓ Filing footnotes — Common Stock (Direct) The amount reported includes shares subject to unvested restricted stock units.	Common Stock	3,994	$143.77	$574,217	186,232
2026-08-14	SLAYEN HOWARD T	Director	Sell↓ Filing footnotes — Common Stock (Direct) The amount reported includes shares subject to unvested restricted stock units.	Common Stock	5,700	$133.03	$758,264	140,667
2026-08-14	ROGERS VERNON	Exec VP of Sales & Mktg.	Sell↓	Common Stock	1,000	$139.00	$139,000	190,226
2026-08-14	ENGINEER ADIL	Chief Operating Officer	Gift↓ Filing footnotes — Common Stock (Direct) The shares were donated to the Engineer Z&A giving Fund. The amount reported includes shares subject to unvested restricted stock units.	Common Stock	500	—	—	46,477
2026-08-14	POSEDEL RHEA J	Director	Sell↓	Common Stock (I)	5,973	$140.00	$836,220	381,989
2026-08-14	ROGERS VERNON	Exec VP of Sales & Mktg.	Sell↓	Common Stock	1,000	$134.00	$134,000	191,226
2026-08-13	SALAMONE ALBERTO	EVP, PPBI BUSINESS	Sell↓ Filing footnotes — Common Stock (Direct) The amount reported includes shares subject to unvested restricted stock units.	Common Stock	5,472	$127.50	$697,688	41,962
2026-08-13	SALAMONE ALBERTO	EVP, PPBI BUSINESS	Sell↓	Common Stock	4,200	$128.00	$537,600	47,434
2026-08-12	ENGINEER ADIL	Chief Operating Officer	Sell↓ Filing footnotes — Common Stock (Direct) The amount reported includes shares subject to unvested restricted stock units.	Common Stock	7,500	$131.10	$983,213	46,977
2026-08-12	ENGINEER ADIL	Chief Operating Officer	Sell↓	Common Stock	7,500	$130.95	$982,162	54,477
2026-08-12	OLIPHANT LAURA	Director	Sell↓ Filing footnotes — Common Stock (Direct) The amount reported includes shares subject to unvested restricted stock units.	Common Stock	1,717	$133.00	$228,361	16,100
2026-08-12	Erickson Gayn	Director, President and CEO	Sell↓	Common Stock (I)	38,452	$130.79	$5,028,968	157,723
2026-08-12	Erickson Gayn	Director, President and CEO	Sell↓	Common Stock (I)	1,548	$132.27	$204,750	196,175
2026-08-12	POSEDEL RHEA J	Director	Sell↓	Common Stock (I)	8,413	$130.00	$1,093,690	387,962
2026-08-12	ENGINEER ADIL	Chief Operating Officer	Convert↑	Common Stock	15,000	$9.45	$141,750	61,977
2026-08-12	ENGINEER ADIL	Chief Operating Officer	Convert↓	Option (right to buy)	7,500	—	—	31,330
2026-08-12	ENGINEER ADIL	Chief Operating Officer	Convert↓	Non-Qualified Option (right to buy)	7,500	—	—	28,088
2026-08-12	SCOTT GEOFFREY GATES	Director	Gift↓ Filing footnotes — Common Stock (Indirect) The shares were donated to Scott Family Gift Fund.	Common Stock (I)	6,731	—	—	23,955
2026-08-12	SCOTT GEOFFREY GATES	Director	Sell↓	Common Stock (I)	20,000	$131.51	$2,630,120	10,000

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 1,091 transactions

Key facts CIK 1040470 CUSIP 00760J108 13F (30d) 25 filings 25 filers Visit website Investor relations