AEHR (AEHR) CFO logs tax-withholding of 368 shares, retains over 77K

Rhea-AI Filing Summary

AEHR TEST SYSTEMS CFO Chris Siu reported a tax-related share withholding transaction. On March 1, 2026, 368 shares of common stock were withheld at $37.43 per share to satisfy tax obligations upon vesting of restricted stock units, which the footnotes clarify does not represent a sale by the reporting person.

Following this transaction, Siu directly owned 72,258 shares of common stock, and an additional 5,211 shares were held indirectly by a trust. The indirect position is reported as a holding entry, without a specified buy or sell action.

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

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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^*

Siu Chris

(Last) (First) (Middle)

C/O AEHR TEST SYSTEMS

400 KATO TERRACE

(Street)

FREMONT CA 94539

(City) (State) (Zip)

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)
	CFO

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	03/01/2026		F		368(1)	D	$37.43	72,258(2)	D
Common Stock								5,211	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

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/SIU CHRIS	03/02/2026
	** 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.

FAQ

What insider transaction did AEHR CFO Chris Siu report on this Form 4 for AEHR?

AEHR CFO Chris Siu reported a tax-withholding disposition of 368 common shares. The shares were withheld to cover tax obligations from vesting restricted stock units and, per footnotes, do not represent an open-market sale by the executive.

How many AEHR shares were withheld for taxes in Chris Siu's Form 4 filing?

The Form 4 shows 368 AEHR common shares withheld at $37.43 each. This withholding satisfied tax obligations tied to restricted stock unit vesting, rather than reflecting a discretionary sale by the chief financial officer.

How many AEHR shares does CFO Chris Siu hold after the reported transactions?

After the reported transactions, Chris Siu directly holds 72,258 AEHR common shares. An additional 5,211 shares are reported as indirectly owned through a trust, which is listed as a holding without a specified buy or sell transaction.

Does the AEHR Form 4 indicate that CFO Chris Siu sold shares on the open market?

The Form 4 explicitly states the 368 shares were withheld to satisfy tax withholding obligations. Footnotes clarify this treatment does not represent a sale by the reporting person, distinguishing it from an open-market disposal of AEHR shares.

What does transaction code F mean in AEHR CFO Chris Siu's Form 4?

Transaction code F on the AEHR Form 4 indicates payment of tax liability by delivering securities. In this case, 368 shares were withheld upon restricted stock unit vesting, covering taxes instead of being sold in the market by Chris Siu.