AEHR VP reports tax withholding on RSU vesting

AEHR TEST SYSTEMS executive Alistair N. Sporck reported routine equity activity involving company stock.

Accepted by SEC EDGAR 04/27/2026 - 09:43 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

AEHR TEST SYSTEMS executive Alistair N. Sporck reported routine equity activity involving company stock. The filing shows that 133 shares of common stock at $88.48 per share were withheld to cover tax obligations when restricted stock units vested, which the company notes does not represent a sale by Sporck. After this tax withholding, he directly holds 20,161 shares of common stock and indirectly holds 5,177 shares through a trust, and the indirect amount includes shares subject to unvested restricted stock units. The transactions reflect compensation and tax mechanics rather than open-market trading.

Insider Trade Summary

Exercise Price or Tax Liability: 133 shares

Exercise Price or Tax Liability 1 txn

Insider SPORCK ALISTAIR N

Role VP Contactor Business Unit

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	133	$88.48	$12K
Holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 20,161 shares (Direct); Common Stock — 5,177 shares (Indirect, By Trust)

Holdings Before and After: Common Stock, 20,294 to 20,161 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

Tax withholding shares: 133 shares Withholding price: $88.48 per share Direct holdings after transaction: 20,161 shares +2 more

5 metrics

Tax withholding shares 133 shares Shares withheld to satisfy tax obligations on RSU vesting

Withholding price $88.48 per share Price per AEHR share used for tax withholding

Direct holdings after transaction 20,161 shares AEHR common stock directly held by Sporck after tax withholding

Indirect holdings by trust 5,177 shares AEHR common stock held indirectly by trust, including unvested RSUs

Tax withholding count 1 transaction Tax withholding disposition entries in transaction summary

Key Terms

restricted stock units, tax withholding obligations, indirect ownership, Form 4

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"

indirect ownership financial

"total_shares_following_transaction 5177.0000, direct_or_indirect I, nature_of_ownership By Trust"

Form 4 regulatory

"INSIDER FILING DATA (Form 4): { "issuerName": "AEHR TEST SYSTEMS""

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

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

What insider activity did AEHR VP Alistair Sporck report on this Form 4?

Alistair Sporck reported a routine equity event where 133 AEHR shares were withheld to cover taxes on vested restricted stock units. This was recorded as a disposition but explicitly described as not being an open-market sale by the reporting person.

Did AEHR VP Alistair Sporck sell any shares in the latest Form 4 filing?

The filing states that 133 shares were withheld to satisfy tax withholding obligations upon vesting of restricted stock units. It specifically clarifies that this withholding “does not represent a sale” by Alistair Sporck, indicating no open-market sale occurred in this report.

How many AEHR shares does Alistair Sporck hold after the reported transactions?

Following the reported tax withholding, Alistair Sporck directly holds 20,161 shares of AEHR common stock. He also indirectly holds 5,177 shares through a trust, and the filing notes that this indirect amount includes shares subject to unvested restricted stock units.

What does the tax withholding transaction mean for AEHR VP Alistair Sporck’s stake?

The 133 AEHR shares were withheld to pay taxes triggered by restricted stock units vesting, a standard compensation-related mechanism. While it reduced the gross number of shares issued to him, it was not a discretionary market sale and reflects normal equity compensation treatment.

How are AEHR shares held by Alistair Sporck’s trust described in the Form 4?

The Form 4 shows 5,177 AEHR shares held indirectly “By Trust.” A footnote explains that this amount includes shares subject to unvested restricted stock units, indicating some of the trust’s reported holdings are still scheduled to vest over time.

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)
04/27/2026

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	04/27/2026		F		133(1)	D	$88.48	20,161(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	04/27/2026
	** 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)