Aehr Test Systems (AEHR) CTO reports tax-withholding share disposition

Rhea-AI Filing Summary

AEHR TEST SYSTEMS CTO Donald P. Richmond II reported a tax-withholding transaction tied to vesting of restricted stock units. 102 shares of common stock were withheld on 2026-07-27 at $77.48 per share to satisfy tax obligations, and the report notes this is not a sale by the insider. After this withholding, he directly holds 186,567 shares of common stock, including shares subject to unvested restricted stock units.

Insider Trade Summary

Net Seller: 102 shares

Net Sell 1 txn

Insider RICHMOND DONALD P. II

Role CTO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	102	$77.48	$8K

Holdings After Transaction: Common Stock — 186,567 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: 102 shares Per-Share Value for Withholding: $77.48 per share Shares Held After Transaction: 186,567 shares

3 metrics

Shares Withheld for Taxes 102 shares Common stock withheld on 2026-07-27 to satisfy tax withholding obligations

Per-Share Value for Withholding $77.48 per share Value used for the 102 shares withheld for tax obligations

Shares Held After Transaction 186,567 shares Direct common stock holdings after withholding, including unvested RSUs

Key Terms

restricted stock units, tax withholding obligations, Reporting Person

3 terms

restricted stock units financial

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

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"

Reporting Person regulatory

"This does not represent a sale by the Reporting Person."

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/27/2026 - 08:12 PM Accepted by SEC EDGAR 07/27/2026 - 08:11 PM Learn about SEC filing dates

FAQ

What insider transaction did AEHR CTO Donald P. Richmond II report?

Donald P. Richmond II, CTO of AEHR, reported a tax-withholding disposition of common stock. 102 shares were withheld to cover taxes due upon vesting of restricted stock units, and this was explicitly described as not being a sale by the reporting person.

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

A total of 102 AEHR shares were withheld to satisfy tax obligations at an indicated value of $77.48 per share. This withholding occurred in connection with the vesting of restricted stock units rather than an open-market stock sale.

How many AEHR shares does the CTO hold after this Form 4 transaction?

Following the tax-withholding event, the AEHR CTO directly holds 186,567 shares of common stock. The reported amount includes shares underlying unvested restricted stock units, according to the disclosure’s footnote explaining the post-transaction share total.

Was the AEHR CTO’s reported transaction an open-market sale of shares?

No. The disclosure states the 102 shares represent stock withheld to satisfy tax withholding obligations upon vesting of restricted stock units. A footnote clarifies that this does not represent a sale by the reporting person in the open market.

Was the AEHR CTO’s tax-withholding transaction under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is marked as not affirmed, indicating the transaction was not reported as executed under a pre-arranged 10b5-1 trading plan. It is characterized instead as stock withheld to meet tax obligations from RSU vesting.

What triggered the AEHR CTO’s tax-withholding share disposition?

The tax-withholding disposition was triggered by the vesting of restricted stock units. To cover associated tax withholding obligations, 102 shares of AEHR common stock were withheld instead of being sold directly by the reporting person on the open market.

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)
07/27/2026

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	07/27/2026		F		102(1)	D	$77.48	186,567(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	07/27/2026
	** 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)