AEHR Test Systems COO reports tax share withholding

AEHR Test Systems reports that Chief Operating Officer Adil Engineer had 387 shares of common stock withheld on July 13, 2026 to satisfy tax withholding obligations upon vesting of restricted stock units at $72.60 per share.

Rhea-AI Filing Summary

AEHR Test Systems reports that Chief Operating Officer Adil Engineer had 387 shares of common stock withheld on July 13, 2026 to satisfy tax withholding obligations upon vesting of restricted stock units at $72.60 per share. This was a non-market tax-withholding disposition, not a sale. After this event, he reports 47,119 shares, including shares subject to unvested restricted stock units.

Filing Explained

This filing records a 387-share tax withholding at vesting—not an open-market sale—with 47,119 shares reported afterward, including unvested RSUs.

The July 13 Form 4 reports that AEHR Chief Operating Officer Chris Siu had 387 common shares withheld when restricted stock units vested; the filing expressly says this was not a sale.

The transaction is coded F, which identifies shares withheld to cover taxes on vesting.

After the reported transaction, the filing lists 47,119 shares beneficially owned directly, including shares subject to unvested restricted stock units.

Insider Trade Summary

Tax Withholding: 387 shares

Tax Withholding 1 txn

Insider ENGINEER ADIL

Role Chief Operating Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	387	$72.60	$28K

Holdings After Transaction: Common Stock — 47,119 shares (Direct)

Footnotes (2)

1. F1. 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.
2. F2. The amount reported includes shares subject to unvested restricted stock units.

Key Figures

Shares Withheld for Taxes: 387 shares Tax Withholding Share Price: $72.60 per share Post-Transaction Reported Shares: 47,119 shares

3 metrics

Shares Withheld for Taxes 387 shares Shares of common stock withheld on 2026-07-13 to satisfy tax withholding obligations on RSU vesting

Tax Withholding Share Price $72.60 per share Valuation per share used for the 387 shares withheld for tax obligations

Post-Transaction Reported Shares 47,119 shares Common stock reported following the transaction, including shares subject to unvested restricted stock units

Key Terms

restricted stock units, tax withholding obligations, unvested restricted stock units

3 terms

restricted stock units financial

"upon vesting of restricted stock units. This does not represent a sale"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"shares that were withheld to satisfy tax withholding obligations upon vesting"

unvested restricted stock units financial

"The amount reported includes shares subject to unvested restricted stock units"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did AEHR (AEHR) COO Adil Engineer report?

COO Adil Engineer reported a tax-withholding disposition of 387 AEHR common shares. The shares were withheld to satisfy tax obligations upon the vesting of restricted stock units, rather than sold in the open market.

How many AEHR shares were involved in the July 13, 2026 Form 4?

The Form 4 reports 387 shares of AEHR common stock withheld. These shares were applied to cover tax withholding obligations tied to vesting restricted stock units, according to the footnote disclosure.

At what price were the AEHR shares valued for the tax withholding?

The 387 shares withheld for taxes were valued at $72.60 per share. This figure reflects the share price used to determine the value of stock withheld to satisfy the reporting person’s tax obligations on RSU vesting.

How many AEHR shares does COO Adil Engineer report after this transaction?

After the tax-withholding disposition, Adil Engineer reports 47,119 shares of AEHR common stock. This amount includes shares that are subject to unvested restricted stock units, as specifically noted in the footnote.

Was the AEHR Form 4 transaction an open-market sale of shares?

No. The Form 4 states the 387 AEHR shares were withheld for tax obligations upon RSU vesting. A footnote clarifies this does not represent a sale by the reporting person in the open market.

What type of equity award was involved in AEHR COO's tax withholding?

The tax withholding related to restricted stock units (RSUs) that vested. Shares were withheld to cover tax obligations arising from this vesting, and the reported share balance still includes unvested RSUs.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/13/2026 - 05:06 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

ENGINEER ADIL

(Last) (First) (Middle)

C/O AEHR TEST SYSTEMS

400 KATO TERRACE

(Street)

FREMONT CALIFORNIA 94539

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
AEHR TEST SYSTEMS [ AEHR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Operating Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	07/13/2026		F		387(1)	D	$72.6	47,119(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

2. The amount reported includes shares subject to unvested restricted stock units.

Remarks:

	/s/Chris Siu, Attorney-in-Fact	07/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)