Aehr Test Systems VP reports tax share withholding

Aehr Test Systems officer Alistair N. Sporck reported that 133 shares of common stock were withheld at $77.48 per share to satisfy tax withholding obligations upon vesting of restricted stock units; this was not an open‑market sale.

Accepted by SEC EDGAR 07/27/2026 - 08:52 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Aehr Test Systems officer Alistair N. Sporck reported that 133 shares of common stock were withheld at $77.48 per share to satisfy tax withholding obligations upon vesting of restricted stock units; this was not an open‑market sale. After the withholding, he held 25,547 shares directly, including unvested RSUs, and 5,177 shares indirectly through a trust.

Insider Trade Summary

Tax Withholding: 133 shares

Tax Withholding 1 txn

Insider SPORCK ALISTAIR N

Role VP Contactor Business Unit

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	133	$77.48	$10K
Holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 25,547 shares (Direct); Common Stock — 5,177 shares (Indirect, By Trust)

Holdings Before and After: Common Stock, 25,680 to 25,547 shares (Direct)

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: 133 shares Tax withholding price: $77.48 per share Direct holdings after transaction: 25,547 shares +2 more

5 metrics

Shares withheld for taxes 133 shares Common stock withheld to satisfy tax withholding obligations on RSU vesting

Tax withholding price $77.48 per share Value used for 133 shares withheld for tax obligations

Direct holdings after transaction 25,547 shares Direct AEHR common stock position after tax withholding, includes unvested RSUs

Indirect holdings by trust 5,177 shares Indirect AEHR common stock held by trust

ExercisePriceOrTaxLiabilityShares 133 shares Shares tied to tax liability event (code F) in transaction summary

Key Terms

restricted stock units, tax withholding obligations, indirect, nature_of_ownership

4 terms

restricted stock units financial

"tax withholding obligations upon vesting of 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.

tax withholding obligations financial

"shares that were withheld to satisfy tax withholding obligations upon vesting"

indirect financial

"total_shares_following_transaction" : "5177.0000" ... "ownership_type" : "indirect""

nature_of_ownership financial

""nature_of_ownership" : "By Trust""

FAQ

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

What insider transaction did AEHR report for Alistair N. Sporck?

Alistair N. Sporck reported 133 AEHR common shares withheld at $77.48 per share to cover tax withholding obligations on vested restricted stock units. The company notes this was a tax withholding event, not an open‑market sale by the reporting person.

Was the AEHR insider transaction by Alistair N. Sporck a stock sale?

No, the filing states the 133 AEHR shares were withheld to satisfy tax obligations on vesting RSUs, and it explicitly says this does not represent a sale. The transaction is coded as tax‑withholding, not a discretionary market sale.

How many AEHR shares does Alistair N. Sporck hold directly after this transaction?

After the tax withholding, Alistair N. Sporck directly holds 25,547 AEHR common shares. A footnote explains this amount includes shares subject to unvested restricted stock units, meaning some of these reported shares are still subject to vesting conditions.

What indirect AEHR shareholdings does Alistair N. Sporck report?

In addition to his direct holdings, Alistair N. Sporck reports 5,177 AEHR common shares held indirectly "By Trust." These trust‑held shares are reported as indirect ownership and are separate from his directly held and RSU‑related share position.

How is the AEHR tax withholding price for Alistair N. Sporck’s shares reported?

The filing reports that the 133 shares withheld for taxes were valued at $77.48 per AEHR share. This per‑share amount is used solely for the tax‑withholding calculation and does not describe an open‑market trade price or sale transaction.

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

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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)
07/27/2026

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	07/27/2026		F		133(1)	D	$77.48	25,547(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	07/27/2026
	** 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)