Jinxin Tech 13G/A Shows Namibox Holding 357.1M Shares (25%)

Rhea-AI Filing Summary

Schedule 13G/A (Amendment 1) reports that Namibox Technology Ltd., a British Virgin Islands company wholly owned by founder Jin Xu, holds 357,136,214 ordinary shares of Jinxin Technology Holding Company (symbol: NAMI), equal to 25.09 % of the 1,423,285,396 shares outstanding as of 20 Jun 2025.

Namibox and Mr. Xu each disclose sole voting and sole dispositive power over the entire stake; no shared power or group members are indicated. The filing is made on Schedule 13G rather than 13D, signalling a passive investment stance with no intent to influence control disclosed. No new acquisitions or dispositions are detailed in this amendment.

The update confirms that more than one-quarter of the company remains under founder ownership, giving Mr. Xu substantial influence over shareholder resolutions that require a simple majority. Minority investors should weigh the benefits of founder alignment against the potential governance constraints posed by such concentrated ownership.

Positive

• High insider alignment: Founder Jin Xu maintains a significant 25.09 % stake, aligning his economic interest with public shareholders.

Negative

• Concentrated control: A single holder can block ordinary resolutions, potentially limiting minority influence and takeover flexibility.

Insights

Securities Analyst

TL;DR: Founder retains 25% stake, confirming strong insider alignment but concentrated control; no transactional changes disclosed.

The amendment merely refreshes ownership data—357.1 million shares or 25.09%—with sole voting and dispositive authority. Because the disclosure is on a 13G, Namibox and Jin Xu present themselves as passive owners, limiting immediate strategic implications. Nevertheless, a quarter-stake confers effective veto power over ordinary resolutions, which can protect long-term vision yet curtail activist influence. No buying/selling data or price points accompany the filing, so valuation impact should be minimal and trading volumes are unlikely to spike on this update alone.

Corporate Governance Specialist

TL;DR: Concentrated founder ownership improves accountability but heightens minority-shareholder risk.

Mr. Xu’s control via Namibox ensures strategy continuity and aligns incentives, often viewed positively in early-stage tech firms. However, with 25% he can block mergers requiring simple majority approval and exerts strong influence on board elections. The absence of any group or shared power lessens complexity, yet investors must monitor related-party transactions and governance safeguards to mitigate entrenchment risk. Overall impact: governance-neutral unless future actions shift to Schedule 13D.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Jinxin Technology Holding Company

(Name of Issuer)

Ordinary shares, par value US$0.00001428571428 per share

(Title of Class of Securities)

47760D102

(CUSIP Number)

05/15/2025

(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. 47760D102

1

Names of Reporting Persons

Namibox Technology 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

VIRGIN ISLANDS, BRITISH

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 357,136,214.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 357,136,214.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

357,136,214.00

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)

25.09 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: (1) For Rows 5, 7 and 9: represents 357,136,214 ordinary shares directly held by Namibox Technology Limited, a British Virgin Islands company wholly-owned by Mr. Jin Xu. (2) For Row 11: the percentage of class of securities beneficially owned by each Reporting Person is calculated based on a total of 1,423,285,396 ordinary shares issued and outstanding as of June 20, 2025 according to records of the Issuer.

SCHEDULE 13G

CUSIP No. 47760D102

1

Names of Reporting Persons

Jin Xu

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 357,136,214.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 357,136,214.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

357,136,214.00

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)

25.09 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: (1) For Rows 5, 7 and 9: represents 357,136,214 ordinary shares directly held by Namibox Technology Limited, a British Virgin Islands company wholly-owned by Mr. Jin Xu. (2) For Row 11: the percentage of class of securities beneficially owned by each Reporting Person is calculated based on a total of 1,423,285,396 ordinary shares issued and outstanding as of June 20, 2025 according to records of the Issuer.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Jinxin Technology Holding Company
(b)	Address of issuer's principal executive offices: Floor 8, Building D, Shengyin Building, Shengxia Road 666, Pudong District, Shanghai 201203, People's Republic of China
Item 2.
(a)	Name of person filing: Namibox Technology Limited Jin Xu
(b)	Address or principal business office or, if none, residence: Namibox Technology Limited: Floor 8, Building D, Shengyin Building, Shengxia Road 666, Pudong District, Shanghai, People's Republic of China Jin Xu: Floor 8, Building D, Shengyin Building, Shengxia Road 666, Pudong District, Shanghai, People's Republic of China
(c)	Citizenship: Namibox Technology Limited: British Virgin Islands Jin Xu: People's Republic of China
(d)	Title of class of securities: Ordinary shares, par value US$0.00001428571428 per share
(e)	CUSIP No.: 47760D102
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: Namibox Technology Limited: 357,136,214 Jin Xu: 357,136,214 Represents 357,136,214 ordinary shares directly held by Namibox Technology Limited, a British Virgin Islands company wholly-owned by Mr. Jin Xu
(b)	Percent of class: Namibox Technology Limited: 25.09% Jin Xu: 25.09% The percentage of class of securities beneficially owned by each Reporting Person is calculated based on a total of 1,423,285,396 ordinary shares issued and outstanding as of June 20, 2025 according to records of the Issuer.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Namibox Technology Limited: 357,136,214 Jin Xu: 357,136,214
	(ii) Shared power to vote or to direct the vote: Namibox Technology Limited: 0 Jin Xu: 0
	(iii) Sole power to dispose or to direct the disposition of: Namibox Technology Limited: 357,136,214 Jin Xu: 357,136,214
	(iv) Shared power to dispose or to direct the disposition of: Namibox Technology Limited: 0 Jin Xu: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
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.

Namibox Technology Limited

Signature:	/s/ Jin Xu
Name/Title:	Jin Xu / Director
Date:	08/04/2025

Jin Xu

Signature:	/s/ Jin Xu
Name/Title:	Jin Xu
Date:	08/04/2025

Exhibit Information

Exhibit 99.1 Joint Filing Agreement

FAQ

How many Jinxin Technology (NAMI) shares does Jin Xu own?

The filing states Jin Xu, through Namibox Technology Limited, beneficially owns 357,136,214 ordinary shares.

What percentage of Jinxin Technology’s outstanding shares is held by Namibox Technology Limited?

Namibox’s holdings equal 25.09 % of the 1.423 billion shares outstanding as of 20 Jun 2025.

Does Jin Xu share voting power with other parties?

No. The Schedule 13G reports sole voting and dispositive power over the entire stake and zero shared power.

Is this a passive or active ownership filing?

Because it is on Schedule 13G (rather than 13D), the ownership is reported as passive with no disclosed intent to influence control.

Are there any new share purchases or sales disclosed?

No transactions are detailed; the amendment only updates beneficial ownership numbers and percentages.