Jane Street reports 5.1% stake in AEHR Test Systems

Jane Street Group, LLC and its subsidiaries reported a passive ownership stake in AEHR TEST SYSTEMS common stock.

Accepted by SEC EDGAR 07/29/2026 - 04:11 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Jane Street Group, LLC and its subsidiaries reported a passive ownership stake in AEHR TEST SYSTEMS common stock. The filing states that Jane Street Group, LLC beneficially owns 1,648,523 shares of AEHR common stock, representing 5.1% of the class.

All of these shares are reported with shared voting and shared dispositive power, and no shares are held with sole voting or dispositive power. Subsidiaries Jane Street Capital, LLC and Jane Street Global Trading, LLC, each organized in Delaware, are identified as the entities through which the securities were acquired. The reporting persons list their principal business address at 250 Vesey Street, 3rd Floor, New York, NY 10281.

Key Figures

Beneficial ownership: 1,648,523 shares Percent of class: 5.1% Shared voting power: 1,648,523 shares +3 more

6 metrics

Beneficial ownership 1,648,523 shares AEHR common stock beneficially owned by Jane Street Group, LLC

Percent of class 5.1% Portion of AEHR common stock class beneficially owned

Shared voting power 1,648,523 shares Shares over which the reporting persons share voting power

Shared dispositive power 1,648,523 shares Shares over which the reporting persons share dispositive power

Jane Street Capital, LLC holdings 845,164 shares Shares with shared voting and dispositive power reported for Jane Street Capital, LLC

Jane Street Global Trading, LLC holdings 803,359 shares Shares with shared voting and dispositive power reported for Jane Street Global Trading, LLC

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company or control person

4 terms

beneficially owned financial

"Ownership (a) | Amount beneficially owned: 1,648,523.00"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

shared voting power financial

"Shared Voting Power 1,648,523.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 1,648,523.00"

parent holding company or control person financial

"filed this schedule, pursuant to (ii)(G), so indicate under Item 3(g)"

FAQ

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

What percentage of AEHR (AEHR) shares does Jane Street Group, LLC report owning?

Jane Street Group, LLC reports beneficial ownership of 5.1% of AEHR common stock. This corresponds to 1,648,523 shares, all held with shared voting and dispositive power according to the Schedule 13G filing.

How many AEHR (AEHR) shares are beneficially owned by the Jane Street reporting group?

The Jane Street reporting group reports beneficial ownership of 1,648,523 AEHR common shares. These shares represent 5.1% of the outstanding class and are held with shared authority to vote and dispose.

Which Jane Street entities are included in the AEHR (AEHR) Schedule 13G filing?

The filing lists Jane Street Group, LLC, Jane Street Capital, LLC, and Jane Street Global Trading, LLC. Jane Street Capital, LLC and Jane Street Global Trading, LLC are identified as the subsidiaries through which the AEHR securities were acquired.

What voting power over AEHR (AEHR) shares does Jane Street report?

Jane Street reports 0 shares with sole voting power and 1,648,523 shares with shared voting power. The same 1,648,523 shares are also reported as having shared dispositive power, with no sole dispositive power.

What is the title of the AEHR (AEHR) securities held by Jane Street?

The securities are AEHR TEST SYSTEMS Common Stock, par value $0.01 per share. This class of stock, identified by CUSIP 00760J108, is the subject of Jane Street’s reported 5.1% beneficial ownership.

Where are the Jane Street reporting entities for AEHR (AEHR) based?

Each reporting entity lists its principal business office as 250 Vesey Street, 3rd Floor, New York, NY 10281. All three—Jane Street Group, LLC, Jane Street Capital, LLC, and Jane Street Global Trading, LLC—are organized in Delaware.

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

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

AEHR TEST SYSTEMS

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

00760J108

(CUSIP Number)

07/24/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 00760J108

1

Names of Reporting Persons

JANE STREET GROUP, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,648,523.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,648,523.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,648,523.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 00760J108

1

Names of Reporting Persons

Jane Street Capital, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 845,164.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 845,164.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

845,164.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

2.6 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 00760J108

1

Names of Reporting Persons

Jane Street Global Trading, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 803,359.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 803,359.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

803,359.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

2.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AEHR TEST SYSTEMS
(b)	Address of issuer's principal executive offices: 400 KATO TERRACE, FREMONT, CALIFORNIA, 94539.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Global Trading, LLC
(b)	Address or principal business office or, if none, residence: Jane Street Group, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 3rd Floor New York, NY 10281
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock, par value $0.01 per share
(e)	CUSIP Number(s): 00760J108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1,648,523.00
(b)	Percent of class: 5.1%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 1,648,523.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 1,648,523.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Subsidiary Jane Street Capital, LLC Jane Street Global Trading, LLC
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

JANE STREET GROUP, LLC

Signature:	/s/ Brian Ignatowitz
Name/Title:	Brian Ignatowitz (Authorized Signatory)
Date:	07/29/2026

Jane Street Capital, LLC

Signature:	/s/ Brian Ignatowitz
Name/Title:	Brian Ignatowitz (Authorized Signatory)
Date:	07/29/2026

Jane Street Global Trading, LLC

Signature:	/s/ Brian Ignatowitz
Name/Title:	Brian Ignatowitz (Authorized Signatory)
Date:	07/29/2026