AEHR Test Systems (AEHR) CTO logs RSU tax-withholding disposition

Rhea-AI Filing Summary

AEHR TEST SYSTEMS CTO Donald P. Richmond II reported a tax-withholding disposition related to restricted stock unit vesting. On 2026-07-13, 423 shares of common stock were withheld at $72.60 per share to satisfy tax obligations, and this did not involve an open-market sale. Following the withholding, he holds 186,997 shares directly, including shares subject to unvested restricted stock units.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider RICHMOND DONALD P. II

Role CTO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	423	$72.60	$31K

Holdings After Transaction: Common Stock — 186,997 shares (Direct)

Footnotes (1)

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

Key Figures

Shares withheld for taxes: 423 shares Withholding price per share: $72.60 Shares held after transaction: 186,997 shares

3 metrics

Shares withheld for taxes 423 shares Withheld on 2026-07-13 to satisfy tax withholding obligations upon RSU vesting

Withholding price per share $72.60 Value per AEHR common share used for the tax-withholding disposition

Shares held after transaction 186,997 shares Direct holdings of Donald P. Richmond II following the withholding, including unvested RSUs

Key Terms

restricted stock units, tax withholding obligations, tax-withholding disposition

3 terms

restricted stock units financial

"withheld to satisfy tax withholding obligations upon vesting of restricted stock units"

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

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

tax-withholding disposition financial

"transaction_action noted as a tax-withholding disposition of common stock"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/13/2026 - 05:43 PM Accepted by SEC EDGAR 07/13/2026 - 05:42 PM Learn about SEC filing dates

FAQ

What did AEHR (AEHR) CTO Donald P. Richmond II report in this Form 4?

The Form 4 shows that CTO Donald P. Richmond II had 423 AEHR shares withheld at $72.60 per share to cover tax obligations from restricted stock unit vesting, leaving him with 186,997 shares held directly, including unvested restricted stock units.

How many AEHR (AEHR) shares were withheld for taxes and at what price?

The filing reports that 423 shares of AEHR common stock were withheld at a price of $72.60 per share. These shares were used to satisfy tax withholding obligations arising from the vesting of restricted stock units awarded to CTO Donald P. Richmond II.

Does this AEHR (AEHR) Form 4 reflect an open-market sale by the CTO?

No. A footnote explains the 423 shares represent shares withheld for tax obligations upon restricted stock unit vesting and explicitly states this does not represent a sale by CTO Donald P. Richmond II in the open market.

How many AEHR (AEHR) shares does Donald P. Richmond II hold after the transaction?

After the tax-withholding disposition, CTO Donald P. Richmond II holds 186,997 shares of AEHR common stock directly. A footnote clarifies that this amount includes shares subject to unvested restricted stock units that remain part of his equity position.

What triggered the AEHR (AEHR) share withholding reported for the CTO?

The withholding of 423 shares was triggered by the vesting of restricted stock units granted to the CTO. Shares were withheld to satisfy associated tax withholding obligations, a routine administrative step for equity compensation rather than a discretionary stock sale.

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^*

RICHMOND DONALD P. II

(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)
	CTO

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		423(1)	D	$72.6	186,997(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)