AEHR director Slayen sells 5,700 shares

AEHR TEST SYSTEMS director Howard T. Slayen reported a sale of 5,700 shares of Common Stock on August 14, 2026 at an average price of $133.0288 per share in an open-market or private transaction.

Rhea-AI Filing Summary

AEHR TEST SYSTEMS director Howard T. Slayen reported a sale of 5,700 shares of Common Stock on August 14, 2026 at an average price of $133.0288 per share in an open-market or private transaction. Following this sale, he holds 140,667 shares directly, including shares subject to unvested restricted stock units.

Insider Trade Summary

Net Seller: 5,700 shares

Net Sell 1 txn

Insider SLAYEN HOWARD T

Role Director

Sold 5,700 shs ($758K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	5,700	$133.0288	$758K

Holdings After Transaction: Common Stock — 140,667 shares (Direct)

Footnotes (1)

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

Key Figures

Shares sold: 5,700 shares Sale price per share: $133.0288 per share Shares held after transaction: 140,667 shares +1 more

4 metrics

Shares sold 5,700 shares Common Stock sale on August 14, 2026

Sale price per share $133.0288 per share Average price for the 5,700-share sale

Shares held after transaction 140,667 shares Direct holdings after sale, including unvested RSUs

Net buy/sell shares -5,700 shares Transaction summary net-sell direction

Key Terms

restricted stock units, transaction code S, non-derivative, net-sell

4 terms

restricted stock units financial

"includes shares subject to unvested 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.

transaction code S financial

"transaction code S, described as a sale in open market"

non-derivative financial

"a single non-derivative transaction in Common Stock"

net-sell financial

"transaction summary shows a net-sell of 5,700 shares"

FAQ

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

What insider transaction did AEHR (AEHR) report for Howard T. Slayen?

AEHR reported that director Howard T. Slayen sold 5,700 shares of Common Stock on August 14, 2026 in an open-market or private transaction, as indicated by transaction code S.

At what price were the AEHR (AEHR) shares sold by Howard T. Slayen?

Howard T. Slayen sold the 5,700 shares of AEHR Common Stock at an average price of $133.0288 per share, based on the reported per-share transaction price classification.

How many AEHR (AEHR) shares does Howard T. Slayen hold after this sale?

After the reported sale, Howard T. Slayen directly holds 140,667 AEHR shares. This reported amount includes shares subject to unvested restricted stock units, according to the attached footnote.

Is the AEHR (AEHR) transaction by Howard T. Slayen a buy or a sell?

The transaction is a sale. It is coded as S, described as a sale in an open-market or private transaction, with the filing’s normalized direction showing a net-sell of 5,700 shares.

Does Howard T. Slayen’s AEHR (AEHR) holding include unvested RSUs?

Yes. A footnote states that the 140,667 shares reported as held after the transaction include shares subject to unvested restricted stock units, meaning not all reported shares are fully vested.

Were any derivative securities involved in this AEHR (AEHR) Form 4 filing?

No derivative securities are reported. The filing shows a single non-derivative transaction in Common Stock and a derivativeTransactionCount of 0 in the transaction summary.

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

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Accepted by SEC EDGAR 08/14/2026 - 05:52 PM EDT 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^*

SLAYEN HOWARD T

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/14/2026

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	08/14/2026		S		5,700	D	$133.0288	140,667(1)	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. The amount reported includes shares subject to unvested restricted stock units.

Remarks:

	/s/Chris Siu, Attorney-in-Fact	08/14/2026
	** 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)