CTO of AEHR Test Systems (AEHR) sells 15,751 Common Stock shares

Rhea-AI Filing Summary

AEHR Test Systems CTO Donald P. Richmond II reported an open-market sale of 15,751 shares of Common Stock on April 9, 2026 at an average price of $68.6849 per share. After this transaction, he directly holds 199,245 shares, which the footnote states includes shares subject to unvested restricted stock units.

Insider Trade Summary

Net Seller: 15,751 shares ($1,081,856)

Net Sell 1 txn

Insider RICHMOND DONALD P. II

Role CTO

Sold 15,751 shs ($1.08M)

Type	Security	Shares	Price	Value
Sale	Common Stock	15,751	$68.6849	$1.08M

Holdings After Transaction: Common Stock — 199,245 shares (Direct)

Footnotes (1)

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Key Figures

Shares sold: 15,751 shares Sale price per share: $68.6849 per share Shares held after sale: 199,245 shares

3 metrics

Shares sold 15,751 shares Open-market sale on April 9, 2026

Sale price per share $68.6849 per share Average price for the reported sale

Shares held after sale 199,245 shares Direct ownership following the transaction; includes unvested RSUs

Key Terms

open-market sale, restricted stock units, Common Stock

3 terms

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

restricted stock units financial

"includes 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.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

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^*

RICHMOND DONALD P. II

(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)
	CTO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/09/2026

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	04/09/2026		S		15,751	D	$68.6849	199,245(1)	D

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

Remarks:

	/s/Chris Siu, Attorney-in-Fact	04/10/2026
	** 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)

FAQ

What insider transaction did AEHR CTO Donald P. Richmond II report?

He reported an open-market sale of 15,751 shares of AEHR Test Systems Common Stock. The transaction was recorded at an average price of $68.6849 per share and reflects a disposal of shares directly owned by him.

At what price did the AEHR CTO sell his 15,751 shares?

The 15,751 shares of AEHR Test Systems Common Stock were sold at an average price of $68.6849 per share. This price comes directly from the reported Form 4 transaction details for the April 9, 2026 trade.

How many AEHR shares does the CTO hold after this Form 4 sale?

Following the sale, the CTO directly holds 199,245 shares of AEHR Test Systems Common Stock. According to the filing footnote, this reported amount includes shares that are subject to unvested restricted stock units held by him.

What type of transaction was reported in the AEHR Form 4 filing?

The filing shows an open-market sale of Common Stock, coded as “S” on Form 4. This indicates a sale in the open market or private transaction, rather than an option exercise, gift, or tax-withholding related movement.

Does the AEHR CTO’s reported share balance include unvested RSUs?

Yes. A footnote explains that the amount reported as directly owned shares includes shares subject to unvested restricted stock units. This means some of the 199,245 reported shares are tied to equity awards not yet fully vested.