Jane Street discloses 5.1% stake in AXT Inc.

Jane Street Group reports passive ownership in AXT Inc. The filing discloses ownership of 2,837,432 shares of AXT Inc. common stock, representing 5.1% of the class, with shared voting and dispositive power reported.

Rhea-AI Filing Summary

Jane Street Group reports passive ownership in AXT Inc. The filing discloses ownership of 2,837,432 shares of AXT Inc. common stock, representing 5.1% of the class, with shared voting and dispositive power reported. The report lists related entities Jane Street Capital, LLC, Jane Street Options, LLC, and Jane Street Global Trading, LLC as filers and identifies shared control among them.

Insights

Institutional Ownership Analyst

Passive stake disclosed: Jane Street group holds a 5.1% position in AXT Inc.

The schedule reports 2,837,432 shares (5.1%) held with shared voting and dispositive power. The filing classifies the position under passive/investment purposes typical for a Schedule 13G reporting threshold.

Watch subsequent filings for any change to a Schedule 13D or Form 13F entries that would indicate active acquisition or strategy shifts; timing not specified in the excerpt.

Key Figures

Beneficial ownership: 2,837,432 shares Percent of class: 5.1% Jane Street Capital holdings: 2,349,425 shares +2 more

5 metrics

Beneficial ownership 2,837,432 shares Amount beneficially owned as reported

Percent of class 5.1% Percent of AXT Inc. common stock reported

Jane Street Capital holdings 2,349,425 shares Amount shown for Jane Street Capital, LLC

Jane Street Options holdings 53,088 shares Amount shown for Jane Street Options, LLC

Jane Street Global Trading holdings 344,919 shares Amount shown for Jane Street Global Trading, LLC

Key Terms

Schedule 13G, beneficially owned, shared dispositive power, passive investor

4 terms

Schedule 13G regulatory

"Item 1. | (a) | Name of issuer: AXT INC"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 2,837,432.00"

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 dispositive power regulatory

"shared power to dispose or to direct the disposition of: 2,837,432.00"

passive investor financial

"Schedule 13G reporting (passive/investment purposes) typical context"

FAQ

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

What stake does Jane Street report in AXTI?

Jane Street reports beneficial ownership of 2,837,432 shares, representing 5.1% of AXT Inc.'s common stock. The filing shows shared voting and dispositive power across affiliated entities.

Which Jane Street entities filed the Schedule 13G for AXTI?

The filing lists Jane Street Group, LLC, Jane Street Capital, LLC, Jane Street Options, LLC, and Jane Street Global Trading, LLC as reporting persons, with a common business address in New York.

Does the Schedule 13G indicate active control of AXTI?

No; the Schedule 13G characterizes the position as a passive disclosure with shared voting and dispositive power. It does not state that the filers control AXT Inc. or intend to influence management.

How is voting power reported for the 2,837,432 shares?

The filing reports 0 shares with sole voting power and 2,837,432 shares with shared voting power, indicating collective voting authority among the reporting entities.

When was the Schedule 13G signed for AXTI?

The signature block shows the filing was signed by Jeremy Kahn as Authorized Signatory on 04/29/2026, reflecting the date the reporting persons attested to the disclosure.

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

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Accepted by SEC EDGAR 04/29/2026 - 04:49 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

AXT INC

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

00246W103

(CUSIP Number)

03/31/2026

(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): 00246W103

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 2,837,432.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,837,432.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,837,432.00

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): 00246W103

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 2,439,425.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,349,425.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,349,425.00

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)

4.4 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 00246W103

1

Names of Reporting Persons

Jane Street Options, 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 53,088.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 53,088.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

53,088.00

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)

0.1 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 00246W103

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 344,919.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 344,919.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

344,919.00

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)

0.6 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AXT INC
(b)	Address of issuer's principal executive offices: 4281 TECHNOLOGY DR., FREMONT, CALIFORNIA, 94538.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Options, LLC; Jane Street Global Trading, LLC
(b)	Address or principal business office or, if none, residence: Jane Street Group, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Options, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 6th Floor New York, NY 10281
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock, $0.001 par value
(e)	CUSIP Number(s): 00246W103
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: 2,837,432.00
(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: 2,837,432.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 2,837,432.00
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 - (a) Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o); Jane Street Options, LLC - (a) Broker or dealer registered under section 15 of the Act (15 U.S.C.78o); Jane Street Global Trading, LLC - N/A;
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 acquired and are held in the ordinary course of business and 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/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	04/29/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	04/29/2026

Jane Street Options, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	04/29/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	04/29/2026