Jane Street reports 4.78M AXT shares (7.5%)

Rhea-AI Filing Summary

Jane Street Group and affiliated entities reported beneficial ownership of 4,781,751 shares of AXT Inc. The filing is an amended Schedule 13G/A showing Jane Street Group’s shared voting and dispositive power over 4,781,751 shares, equal to 7.5% of the class as of the cover information.

The filing breaks down affiliated holdings: Jane Street Capital, LLC reports 4,028,992 shares (6.3%), Jane Street Global Trading, LLC reports 752,759 shares (1.2%), and Jane Street Options, LLC reports 0 shares. The report is signed by Jeremy Kahn on 04/29/2026.

Insights

Governance Analyst

Amended beneficial-ownership filing clarifies Jane Street affiliates’ shared control of 7.5% of AXT Inc.

The amendment restates aggregated and affiliate-level holdings, showing shared voting and dispositive power over 4,781,751 shares (7.5%). The largest affiliate, Jane Street Capital, LLC, holds 4,028,992 shares (6.3%).

Such 13G/A updates are routine disclosures of passive or qualifying ownership; the filing does not state acquisition method or changes to voting arrangements. Subsequent filings or company disclosures would show any actor-driven changes to voting or disposition plans.

Key Figures

Aggregate beneficial ownership: 4,781,751 shares Aggregate percent of class: 7.5% Jane Street Capital holdings: 4,028,992 shares +3 more

6 metrics

Aggregate beneficial ownership 4,781,751 shares Reported by Jane Street Group in the amendment

Aggregate percent of class 7.5% Percent of class tied to 4,781,751 shares

Jane Street Capital holdings 4,028,992 shares Held by Jane Street Capital, LLC (affiliate)

Jane Street Global Trading holdings 752,759 shares Held by Jane Street Global Trading, LLC (affiliate)

Jane Street Options holdings 0 shares Reported for Jane Street Options, LLC

Signature date 04/29/2026 Filing signed by Jeremy Kahn

Key Terms

Schedule 13G/A, beneficially owned, shared voting power, shared dispositive power

4 terms

Schedule 13G/A regulatory

"Amendment No. 1 filed as a Schedule 13G/A reporting beneficial ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned financial

"Amount beneficially owned: 4,781,751.00 (b) Percent of class: 7.5%"

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 governance

"Shared Voting Power 4,781,751.00 reported on Item 4"

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 governance

"Shared Dispositive Power 4,781,751.00 reported on Item 4"

FAQ

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

What does Jane Street report owning in AXT Inc. (AXTI)?

Jane Street reports beneficial ownership of 4,781,751 shares of AXT Inc., representing 7.5% of the class. The filing is an amended Schedule 13G/A signed on 04/29/2026 and lists affiliate-level holdings.

How are the Jane Street holdings allocated among affiliates?

Jane Street Capital, LLC holds 4,028,992 shares (6.3%), Jane Street Global Trading, LLC holds 752,759 shares (1.2%), and Jane Street Options, LLC reports 0 shares in the filing.

Does the Schedule 13G/A show voting power for these shares?

The filing reports shared voting power and shared dispositive power of 4,781,751 shares for Jane Street Group, indicating these shares are reported under shared control rather than sole voting or dispositive authority.

Who signed the amended Schedule 13G/A for Jane Street?

The amendment is signed by Jeremy Kahn as an authorized signatory for the filing entities. The signature date shown is 04/29/2026.

Does this filing indicate any change in ownership strategy or transactions?

The filing restates beneficial-ownership figures but does not disclose acquisition method, disposition plans, or a change in strategy. It documents reported holdings and voting/dispositive power without transaction details.

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

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Accepted by SEC EDGAR 04/29/2026 - 05:03 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

AXT INC

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

00246W103

(CUSIP Number)

04/23/2026

(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 4,781,751.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,781,751.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,781,751.00

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)

7.5 %

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 4,028,992.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,028,992.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,028,992.00

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)

6.3 %

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 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

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 752,759.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 752,759.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

752,759.00

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)

1.2 %

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., 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 No.: 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: 4,781,751.00
(b)	Percent of class: 7.5%
(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: 4,781,751.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 4,781,751.00
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. Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Options, 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/ 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