Marex reports 4,005,709-share, 7.21% stake in AXT Inc (NASDAQ: AXTI)

Rhea-AI Filing Summary

AXT Inc. reported that Marex Securities Products, Inc. and Marex Group plc disclosed beneficial ownership of 4,005,709 shares of common stock, representing 7.21% of the class. The filing states the reporting entities have sole voting and sole dispositive power over all 4,005,709 shares. The address and CUSIP 00246W103 are included in the filing.

Insights

Corporate Governance Analyst

Marex discloses a passive, material stake of 4,005,709 shares (7.21%).

The filing is a Schedule 13G reporting beneficial ownership with sole voting and dispositive power attributed to Marex entities. This indicates a sizeable passive position reported pursuant to beneficial‑ownership disclosure rules rather than an active takeover filing.

Shareholders may note the 05/01/2026 reporting context and the filing signatures dated 05/06/2026. Subsequent filings could disclose changes in voting or disposition authority.

Key Figures

Reported shares beneficially owned: 4,005,709 shares Percent of class: 7.21% CUSIP: 00246W103 +2 more

5 metrics

Reported shares beneficially owned 4,005,709 shares Schedule 13G ownership reported

Percent of class 7.21% Percent of common stock reported

CUSIP 00246W103 AXT Inc Common Stock

Reporting date 05/01/2026 Ownership date shown in filing

Filing signature date 05/06/2026 Dates of signatures by Marex officers

Key Terms

Schedule 13G, Beneficially owned, Sole Dispositive Power

3 terms

Schedule 13G regulatory

"Name of issuer: AXT INC (Schedule 13G reporting)"

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 regulatory

"Amount beneficially owned: 4,005,709"

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.

Sole Dispositive Power regulatory

"Sole Dispositive Power 4,005,709.00"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

AXT INC

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

00246W103

(CUSIP Number)

05/01/2026

(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

Marex Securities Products Inc.

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 4,005,709.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,005,709.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,005,709.00

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)

7.2 %

12

Type of Reporting Person (See Instructions)

CO

SCHEDULE 13G

CUSIP Number(s): 00246W103

1

Names of Reporting Persons

Marex Group plc

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

UNITED KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 4,005,709.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 4,005,709.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,005,709.00

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)

7.2 %

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., FREMONT, CALIFORNIA, 94538.
Item 2.
(a)	Name of person filing: Marex Securities Products, Inc. Marex Group plc"
(b)	Address or principal business office or, if none, residence: Marex Securities Products, Inc. 140 East 45th Street, Floor 10?&?11 New York, NY 10017 Marex Group plc 155 Bishopsgate London, X0 EC2M 3TQ
(c)	Citizenship: Marex Securities Products, Inc. Delaware Marex Group plc United Kingdom
(d)	Title of class of securities: Common Stock, par value $0.001
(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: 4,005,709
(b)	Percent of class: 7.21 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 4,005,709
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 4,005,709
	(iv) Shared power to dispose or to direct the disposition of: 0
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.
	Not Applicable
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.

Marex Securities Products Inc.

Signature:	Jennifer Kaiser
Name/Title:	COO
Date:	05/06/2026

Marex Group plc

Signature:	Scott Linsley
Name/Title:	Corporate Secretary
Date:	05/06/2026

FAQ

What stake did Marex report in AXT Inc (AXTI)?

Marex reported beneficial ownership of 4,005,709 shares, equal to 7.21% of AXT Inc. This position is disclosed on the Schedule 13G and tied to CUSIP 00246W103.

Which Marex entities filed the Schedule 13G for AXTI?

The filing lists Marex Securities Products, Inc. and Marex Group plc as the reporting persons. Addresses for both entities and their citizenship (Delaware and United Kingdom) are included.

What voting and dispositive powers does Marex claim for AXTI shares?

Marex reports sole voting power of 4,005,709 shares and sole dispositive power of the same number, with no shared voting or dispositive power listed in the filing.

What dates appear in the Schedule 13G for AXTI?

The content shows an ownership date of 05/01/2026 and signatures dated 05/06/2026. These dates provide the reporting timeframe for the disclosed holdings.