Golden Stone discloses 25.2% Intchains (ICG) Class A share stake

Rhea-AI Filing Summary

Intchains Group Limited received an amended Schedule 13G showing that Golden Stone Capital Limited, a Samoa company 100% owned by Zhaoyang Ma, beneficially owned 14,099,120 Class A ordinary shares as of December 31, 2025. This stake represents 25.2% of the Class A ordinary shares, based on 56,028,722 shares outstanding as of December 31, 2024, as reported in Intchains’ Form 20-F. Golden Stone and Zhaoyang Ma each report sole voting and dispositive power over these shares, with no shared power.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Intchains Group Limited

(Name of Issuer)

Class A ordinary shares, par value US$0.000001 per share

(Title of Class of Securities)

45828E104

(CUSIP Number)

12/31/2025

(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)

SCHEDULE 13G

CUSIP No. 45828E104

1

Names of Reporting Persons

Golden Stone Capital Limited

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

SAMOA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 14,099,120.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 14,099,120.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

14,099,120.00

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)

25.2 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: (1) The value in rows 5 and 7 represents 14,099,120 Class A ordinary shares held of record by Golden Stone Capital Limited as of December 31, 2025. (2) Percent of class represented by amount in row (9) is calculated based on an aggregate of 56,028,722 Class A ordinary shares issued and outstanding as of December 31, 2024, as reported in the Issuer's Form 20-F filed with the U.S. Securities and Exchange Commission on April 30, 2025.

SCHEDULE 13G

CUSIP No. 45828E104

1

Names of Reporting Persons

Zhaoyang Ma

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

CHINA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 14,099,120.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 14,099,120.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

14,099,120.00

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)

25.2 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: (1) The value in rows 5 and 7 represents 14,099,120 Class A ordinary shares held of record by Golden Stone Capital Limited, a Samoa company 100% owned by Zhaoyang Ma as of December 31, 2025. (2) Percent of class represented by amount in row (9) is calculated based on an aggregate of 56,028,722 Class A ordinary shares issued and outstanding as of December 31, 2024, as reported in the Issuer's Form 20-F filed with the U.S. Securities and Exchange Commission on April 30, 2025.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Intchains Group Limited
(b)	Address of issuer's principal executive offices: Building 16, Lane 999, Xinyuan South Road, Lin-gang Special Area, Pudong, Shanghai, People's Republic of China
Item 2.
(a)	Name of person filing: Golden Stone Capital Limited, a Samoa company 100% owned by Zhaoyang Ma. Zhaoyang Ma, a citizen of the People's Republic of China.
(b)	Address or principal business office or, if none, residence: The address of each of Golden Stone Capital Limited and Zhaoyang Ma is as follows: c/o Offshore Chambers, P.O. 217, Apia, Samoa
(c)	Citizenship: Golden Stone Capital Limited, a Samoa company Zhaoyang Ma, a citizen of the People's Republic of China
(d)	Title of class of securities: Class A ordinary shares, par value US$0.000001 per share
(e)	CUSIP No.: 45828E104
Item 4.	Ownership
(a)	Amount beneficially owned: The information for each reporting person contained in Items 5-11 of the cover pages is incorporated herein by reference.
(b)	Percent of class: The information for each reporting person contained in Items 5-11 of the cover pages is incorporated herein by reference.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information for each reporting person contained in Items 5-11 of the cover pages is incorporated herein by reference.
	(ii) Shared power to vote or to direct the vote: The information for each reporting person contained in Items 5-11 of the cover pages is incorporated herein by reference.
	(iii) Sole power to dispose or to direct the disposition of: The information for each reporting person contained in Items 5-11 of the cover pages is incorporated herein by reference.
	(iv) Shared power to dispose or to direct the disposition of: The information for each reporting person contained in Items 5-11 of the cover pages is incorporated herein by reference.
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:
	Not Applicable

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.

Golden Stone Capital Limited

Signature:	/s/ Zhaoyang Ma
Name/Title:	Zhaoyang Ma / Director
Date:	01/27/2026

Zhaoyang Ma

Signature:	/s/ Zhaoyang Ma
Name/Title:	Zhaoyang Ma
Date:	01/27/2026

FAQ

What ownership stake in Intchains Group Limited (ICG) is reported in this Schedule 13G/A?

The filing reports that 14,099,120 Class A ordinary shares of Intchains Group Limited are beneficially owned, representing 25.2% of the Class A ordinary shares.

Who is the reporting owner of Intchains Group Limited (ICG) shares in this filing?

The reporting persons are Golden Stone Capital Limited, a Samoa company, and Zhaoyang Ma, a citizen of the People’s Republic of China who owns 100% of Golden Stone Capital Limited.

How many Intchains (ICG) shares does Golden Stone Capital Limited control?

Golden Stone Capital Limited holds of record 14,099,120 Class A ordinary shares, with sole voting and sole dispositive power over all of these shares.

How is the 25.2% ownership percentage in Intchains (ICG) calculated?

The 25.2% figure is based on 56,028,722 Class A ordinary shares issued and outstanding as of December 31, 2024, as reported in Intchains’ Form 20-F filed on April 30, 2025.

Does Zhaoyang Ma report shared voting or dispositive power over Intchains (ICG) shares?

No. The filing shows sole voting power and sole dispositive power over 14,099,120 Class A ordinary shares, and zero shared voting or shared dispositive power.

What type of securities of Intchains Group Limited (ICG) are covered in this Schedule 13G/A?

The filing covers Class A ordinary shares of Intchains Group Limited, each with a par value of US$0.000001 per share, identified by CUSIP 45828E104.