Aehr Test Systems director exercises 18,000 options

The reported post-exercise position includes direct shares subject to unvested restricted stock units and 381,989 shares held indirectly by trust.

Rhea-AI Filing Summary

AEHR Test Systems director Rhea J. Posedel exercised 18,000 non-qualified options on October 20, 2026, at an exercise price of $1.77 per share, acquiring 18,000 common shares. Her direct common-share position following the transaction was 65,156 shares, including shares subject to unvested restricted stock units. The filing also lists 381,989 common shares held indirectly by trust. No Rule 10b5-1 plan is reported.

Insider Trade Summary

18,000 shares exercised/converted

Exercise 3 txns

Insider POSEDEL RHEA J

Role Director

Type	Security	Shares	Price	Value
Exercise	Non-Qualified Option (right to buy)	18,000	$0.00	$0.00
Exercise	Common Stock F1	18,000	$1.77	$32K
holding	Common Stock	--	--	--

Holdings After Transaction: Non-Qualified Option (right to buy) — 0 contracts (Direct); Common Stock — 65,156 shares (Direct); Common Stock — 381,989 shares (Indirect, By Trust)

Footnotes (1)

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

Key Figures

Common shares acquired: 18,000 shares Exercise price: $1.77 per share Direct common shares following transaction: 65,156 shares +1 more

4 metrics

Common shares acquired 18,000 shares Option exercise on October 20, 2026

Exercise price $1.77 per share Option exercise on October 20, 2026

Direct common shares following transaction 65,156 shares Includes shares subject to unvested restricted stock units

Common shares held indirectly by trust 381,989 shares Reported October 20, 2026

Key Terms

Non-Qualified Option, restricted stock units, exercise price

3 terms

Non-Qualified Option financial

"Non-Qualified Option (right to buy)"

restricted stock units financial

"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.

exercise price financial

"exercise price of $1.77 per share"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

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

How many AEHR shares did Rhea J. Posedel acquire, and at what exercise price?

On October 20, 2026, Rhea J. Posedel exercised 18,000 non-qualified options at an exercise price of $1.77 per share and acquired 18,000 common shares.

What AEHR share holdings did Rhea J. Posedel report after the exercise?

The reported direct common-share position after the transaction was 65,156 shares, including shares subject to unvested restricted stock units. The filing also lists 381,989 common shares held indirectly by trust.

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

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Available on EDGAR 10/20/2026 - 06:41 PM EDT Accepted by SEC EDGAR 10/20/2026 - 06:40 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^*

POSEDEL RHEA J

(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)
10/20/2026

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	10/20/2026		M		18,000	A	$1.77	65,156(1)	D
Common Stock								381,989	I	By Trust

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
Non-Qualified Option (right to buy)	$1.77	10/20/2026		M			18,000	11/22/2019	10/22/2026	Common Stock	18,000	$0	0	D

Explanation of Responses:

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

Remarks:

	/s/Chris Siu, Attorney-in-Fact	10/20/2026
	** 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)