Jane Street reports 6.7% stake in AXT Inc

Jane Street Group, LLC and its affiliates report beneficial ownership of AXT Inc. common stock on a Schedule 13G/A (Amendment No. 2).

Rhea-AI Filing Summary

Jane Street Group, LLC and its affiliates report beneficial ownership of AXT Inc. common stock on a Schedule 13G/A (Amendment No. 2). The group reports beneficial ownership of 4,382,115 shares of common stock, representing 6.7% of the class.

All reported shares are held with shared voting and dispositive power. Jane Street Capital, LLC holds 3,836,581 shares (5.9%), Jane Street Global Trading, LLC holds 545,503 shares (0.8%), and Jane Street Singapore Pte. Ltd holds 31 shares. Jane Street Group, LLC is identified as the parent holding company of these subsidiaries.

Key Figures

Beneficial ownership shares: 4,382,115 shares Beneficial ownership percentage: 6.7% Jane Street Capital holdings: 3,836,581 shares +3 more

6 metrics

Beneficial ownership shares 4,382,115 shares Total AXT Inc common stock beneficially owned by Jane Street Group, LLC and affiliates

Beneficial ownership percentage 6.7% Percent of AXT Inc common stock class held by Jane Street entities

Jane Street Capital holdings 3,836,581 shares AXT Inc shares beneficially owned by Jane Street Capital, LLC (5.9% of class)

Jane Street Global Trading holdings 545,503 shares AXT Inc shares beneficially owned by Jane Street Global Trading, LLC (0.8% of class)

Jane Street Singapore holdings 31 shares AXT Inc shares beneficially owned by Jane Street Singapore Pte. Ltd (0.0% of class)

Form type Schedule 13G/A (Amendment No. 2) Passive beneficial ownership report for AXT Inc common stock

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 4,382,115.00"

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 4,382,115.00"

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 4,382,115.00"

parent holding company regulatory

"If a parent holding company has filed this schedule, pursuant to (ii)(G)"

Schedule 13G/A regulatory

"AXT INC (Amendment No. 2 ) ... SCHEDULE 13G/A"

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.

FAQ

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

What percentage of AXT Inc (AXTI) does Jane Street Group report owning?

Jane Street Group, LLC reports beneficial ownership of 6.7% of AXT Inc’s common stock, corresponding to 4,382,115 shares with shared voting and dispositive power across its subsidiaries.

How many AXT Inc (AXTI) shares are beneficially owned by Jane Street entities?

Jane Street entities collectively report 4,382,115 AXT Inc common shares beneficially owned, all held with shared voting and dispositive power as disclosed under Item 4 of the Schedule 13G/A.

Which Jane Street subsidiary holds the largest AXT Inc (AXTI) position?

Jane Street Capital, LLC holds the largest position, reporting 3,836,581 AXT Inc shares, or 5.9% of the common stock, all with shared voting and dispositive power.

What stakes do the other Jane Street subsidiaries hold in AXT Inc (AXTI)?

Jane Street Global Trading, LLC holds 545,503 shares (0.8%), and Jane Street Singapore Pte. Ltd holds 31 shares (0.0%), each with shared voting and dispositive power over their respective holdings.

Does Jane Street Group have sole voting or dispositive power over AXT Inc (AXTI) shares?

Jane Street Group, LLC reports no sole voting or dispositive power. All 4,382,115 AXT Inc shares are held with shared voting and shared dispositive power among its reporting subsidiaries.

What type of filing did Jane Street make regarding AXT Inc (AXTI)?

The Jane Street entities filed a Schedule 13G/A (Amendment No. 2), reporting their passive beneficial ownership of AXT Inc common stock and detailing their aggregate 6.7% stake.

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

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Available on EDGAR 08/12/2026 - 04:13 PM Accepted by SEC EDGAR 08/12/2026 - 04:12 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

AXT INC

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

00246W103

(CUSIP Number)

06/30/2026

(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 4,382,115.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,382,115.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,382,115.00

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)

6.7 %

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 3,836,581.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,836,581.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,836,581.00

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)

5.9 %

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 545,503.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 545,503.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

545,503.00

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)

0.8 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 00246W103

1

Names of Reporting Persons

Jane Street Singapore Pte. Ltd

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

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 31.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 31.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

31.00

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)

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 Global Trading, LLC; Jane Street Singapore Pte. Limited
(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 Jane Street Singapore Pte. Limited 2 Central Boulevard, #43-01 IOI Central Boulevard Towers (West Tower) 018916, Singapore
(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: 4,382,115.00
(b)	Percent of class: 6.7%
(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: 4,382,115.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 4,382,115.00
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 Jane Street Singapore Pte. Limited
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:	08/12/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/12/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/12/2026

Jane Street Singapore Pte. Ltd

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/12/2026