Aehr Test VP has 334 shares withheld for taxes

Aehr Test Systems executive Alistair N. Sporck, VP Contactor Business Unit, had 334 common shares withheld at $81.05 on July 20, 2026 to satisfy tax withholding obligations upon vesting of restricted stock units; this was not an open-market sale.

Rhea-AI Filing Summary

Aehr Test Systems executive Alistair N. Sporck, VP Contactor Business Unit, had 334 common shares withheld at $81.05 on July 20, 2026 to satisfy tax withholding obligations upon vesting of restricted stock units; this was not an open-market sale.

After this withholding, Sporck holds 25,680 shares directly, including unvested restricted stock units, and 5,177 shares indirectly through a trust.

Insider Trade Summary

Tax Withholding: 334 shares

Tax Withholding 2 txns

Insider SPORCK ALISTAIR N

Role VP Contactor Business Unit

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	334	$81.05	$27K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 25,680 shares (Direct); Common Stock — 5,177 shares (Indirect, By Trust)

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: 334 shares Withholding price per share: $81.05 Direct holdings after transaction: 25,680 shares +2 more

5 metrics

Shares withheld for taxes 334 shares Common stock withheld on 2026-07-20 to satisfy RSU tax obligations

Withholding price per share $81.05 Value per share for the tax-withholding disposition of 334 shares

Direct holdings after transaction 25,680 shares Direct common stock holdings after July 20, 2026, including unvested RSUs

Indirect holdings after transaction 5,177 shares Indirect ownership by trust reported after the transactions

Tax withholding transactions reported 1 Number of F-code tax-withholding dispositions in this Form 4

Key Terms

restricted stock units, tax withholding obligations, By Trust

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"

By Trust financial

"total_shares_following_transaction 5177.0000, nature_of_ownership By Trust"

FAQ

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

What transaction did AEHR insider Alistair Sporck report?

Alistair Sporck reported 334 AEHR common shares withheld to cover tax obligations on vesting restricted stock units. According to the footnote, this withholding was for taxes only and does not represent a sale of shares by the reporting person.

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

The report shows 334 shares of Aehr Test Systems common stock withheld at $81.05 per share. These shares were used to satisfy tax withholding obligations tied to the vesting of restricted stock units, rather than sold in the open market.

How many AEHR shares does Alistair Sporck hold after this Form 4?

After the reported withholding, Sporck holds 25,680 shares directly, including unvested restricted stock units, and 5,177 shares indirectly through a trust. These totals reflect his reported ownership positions following the July 20, 2026 transaction.

Was the AEHR insider transaction an open-market sale of stock?

No. A footnote states the 334 shares were withheld to satisfy tax withholding obligations and do not represent a sale. The shares were used for taxes associated with restricted stock unit vesting, not sold on an exchange.

Is the AEHR Form 4 transaction reported under a Rule 10b5-1 trading plan?

The Rule 10b5-1 checkbox is not marked as an affirmative trading plan. The transaction is characterized instead as shares withheld for tax obligations related to restricted stock unit vesting, rather than discretionary trading under a pre-arranged plan.

How much indirect AEHR ownership does Sporck report via a trust?

Sporck reports 5,177 AEHR shares held indirectly “By Trust.” This entry reflects his indirect ownership position after the reported tax-withholding event and is separate from his 25,680 directly held shares, which include unvested restricted stock units.

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

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Accepted by SEC EDGAR 07/20/2026 - 07:19 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^*

SPORCK ALISTAIR N

(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)
	VP Contactor Business Unit

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026

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	07/20/2026		F		334(1)	D	$81.05	25,680(2)	D
Common Stock								5,177	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/Chris Siu, Attorney-in-Fact	07/20/2026
	** 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)