Aehr director granted 1,658 stock units

SLAYEN HOWARD T reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

SLAYEN HOWARD T reported acquisition or exercise transactions in this Form 4 filing.

Aehr Test Systems director Howard T. Slayen received a grant of 1,658 shares of Common Stock, awarded at a price of $0.0000 per share. These shares are subject to restricted stock unit awards that vest in four equal parts every three full calendar months, as long as he continues serving on the Board of Directors. After this grant, he directly holds 171,367 shares of Common Stock, including shares subject to unvested restricted stock units.

Insider Trade Summary

Grant/Award: 1,658 shares

Grant/Award 1 txn

Insider SLAYEN HOWARD T

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,658	$0.00	$0.00

Holdings After Transaction: Common Stock — 171,367 shares (Direct)

Footnotes (2)

1. F1. One-fourth (1/4) of the total number of shares subject to the restricted stock unit awards shall vest at the end of each three full calendar months following the date of this action, provided that such recipient still serves as a member of the Board of Director of the corporation on such dates.
2. F2. The amount reported includes shares subject to unvested restricted stock units.

Key Figures

Equity grant: 1,658 shares Award price: $0.0000 per share Post-grant holdings: 171,367 shares +1 more

4 metrics

Equity grant 1,658 shares Common Stock award on 2026-07-01

Award price $0.0000 per share Grant of Common Stock as compensation

Post-grant holdings 171,367 shares Direct Common Stock holdings after transaction

Vesting cadence 1/4 every 3 months Restricted stock unit vesting schedule

Key Terms

restricted stock unit awards, vest, Board of Director, unvested restricted stock units

4 terms

restricted stock unit awards financial

"shares subject to the restricted stock unit awards shall vest at the end of each three full calendar months"

Restricted stock unit awards are company promises to deliver a specific number of shares to employees or service providers in the future once conditions—such as staying with the company for a set time or meeting performance targets—are met. They matter to investors because when the promises convert into actual shares they increase the total share count and can reduce earnings per share, while also aligning recipients’ interests with stock performance much like deferred pay that turns into ownership if goals are met.

vest financial

"One-fourth (1/4) of the total number of shares subject to the restricted stock unit awards shall vest at the end"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

Board of Director financial

"provided that such recipient still serves as a member of the Board of Director of the corporation"

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 director Howard T. Slayen report?

Director Howard T. Slayen reported receiving a grant of 1,658 shares of Aehr Test Systems Common Stock. The award was made at $0.0000 per share as a restricted stock unit grant tied to his service on the Board of Directors.

How many AEHR shares does Howard T. Slayen hold after this grant?

After the grant, Howard T. Slayen directly holds 171,367 shares of Aehr Test Systems Common Stock. This total includes shares subject to unvested restricted stock units, reflecting both currently vested and future-vesting equity tied to his board role.

What is the vesting schedule for Howard T. Slayen’s AEHR restricted stock units?

One-fourth of the shares subject to the restricted stock unit awards vest at the end of each three full calendar months. Vesting continues only if Slayen is still serving as a member of Aehr Test Systems’ Board of Directors on those vesting dates.

Was there a purchase price for Howard T. Slayen’s new AEHR shares?

The 1,658 Aehr Test Systems shares were awarded at a price of $0.0000 per share. This indicates a compensation-related equity grant, not an open-market purchase, with value tied to his continued service on the company’s Board of Directors.

Do Howard T. Slayen’s reported AEHR holdings include unvested restricted stock units?

Yes. The reported 171,367 Aehr Test Systems shares include shares subject to unvested restricted stock units. This means part of his disclosed position will vest over time, assuming ongoing Board service under the award’s vesting conditions.

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

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Accepted by SEC EDGAR 07/02/2026 - 05:22 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^*

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)
07/01/2026

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	07/01/2026		A		1,658(1)	A	$0	171,367(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. One-fourth (1/4) of the total number of shares subject to the restricted stock unit awards shall vest at the end of each three full calendar months following the date of this action, provided that such recipient still serves as a member of the Board of Director of the corporation on such dates.

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

Remarks:

	/s/Chris Siu, Attorney-in-Fact	07/02/2026
	** 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)