Ostin Technology: Schedule 13G shows insider now below 5 % threshold

Rhea-AI Filing Summary

Schedule 13G/A (Amendment No. 1) filing for Ostin Technology Group Co., Ltd. (OST) reports that individual shareholder Lo Sheng-Lun now holds 3,814,034 Class A ordinary shares, representing 3.55 % of the Class A float and 2.99 % of total voting power as of 19 June 2025. Because the position has fallen below the 5 % threshold, the submission is characterised as an “exit filing.”

The filing confirms: (i) sole voting and dispositive power over the entire stake, (ii) no shared voting or dispositive power, and (iii) no affiliation with a filing “group.” The stake size is calculated against 107,430,032 Class A and 200,000 Class B shares outstanding, figures taken from OST’s Form 6-K (12 May 2025) and Form 20-F (17 Jan 2025). Each Class A share carries one vote, whereas Class B shares carry 100 votes, explaining the lower percentage of overall voting power vs. economic ownership.

Implications for investors: dropping below the 5 % level removes mandatory Schedule 13D/G reporting going forward unless the stake rises again. Reduced insider ownership can be interpreted as potentially lower alignment with minority shareholders, but the filing gives no information on sale timing, price, or motivation. No other material corporate events, earnings data, or transaction details are provided.

Positive

• None.

Negative

• Insider ownership falls below 5 %, potentially signalling selling pressure or reduced alignment with minority shareholders
• Future trades by the insider will no longer trigger mandatory 13G/D filings, lowering disclosure transparency for investors

Insights

Financial Analyst

TL;DR: Insider’s stake slips to 3.55 %; exit filing signals reduced disclosure going forward.

Lo Sheng-Lun’s holding has declined below the pivotal 5 % threshold, prompting this Schedule 13G/A amendment. The ownership drop reduces mandatory reporting frequency, so public visibility on any future trading activity will diminish. While the filing alone does not confirm whether shares were sold or diluted, a declining insider stake often raises questions on commitment and future involvement. That said, 3.55 % is still a meaningful position and voting influence remains limited due to OST’s dual-class structure that heavily favours Class B shares. Overall effect leans slightly negative because insider selling—or dilution—can pressure sentiment, yet the percentage change is not large enough to materially alter control dynamics.

Corporate Governance Expert

TL;DR: Exit filing reflects lower transparency; governance influence unchanged by dual-class setup.

OST’s dual-class capital structure already concentrates voting power in Class B shares; therefore, Lo Sheng-Lun’s reduction from >5 % to 3.55 % only marginally decreases minority influence. Governance risk remains high given 100:1 vote differential. Investors should note decreased future visibility on this insider’s trades once below 5 %. However, there are no red flags around control contests or activist activity, as the filer certifies no intent to influence control. Net governance impact is modest but directionally negative for transparency.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Ostin Technology Group Co., Ltd.

(Name of Issuer)

Class A Ordinary Shares, $0.001 par value per share

(Title of Class of Securities)

G67927114

(CUSIP Number)

06/19/2025

(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. G67927114

1

Names of Reporting Persons

LO SHENG-LUN

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

TAIWAN, PROVINCE OF CHINA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,814,034.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,814,034.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,814,034.00

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)

3.55 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: (1) Represents 3,814,034 Class A Ordinary Shares held by LO SHENG-LUN. (2) The percentage of the class of securities is calculated by dividing the number of shares beneficially owned by the reporting person by all of the issuer's issued and outstanding Class A ordinary shares as of May 12, 2025, as provided by the issuer in the Form 6-K filed on May 12, 2025 and the Form 20-F filed on January 17, 2025 by the issuer, 107,430,032 Class A ordinary shares and 200,000 Class B ordinary shares are issued and outstanding. The shares beneficially owned by the reporting person represents 3.55% of the total outstanding Class A Ordinary Shares. The shares beneficially owned by the reporting person represents 2.99% of the total outstanding voting power. The percentage of voting power is calculated by dividing the voting power beneficially owned by the reporting person by the voting power beneficially owned by all of the issuer's holders of Class A ordinary shares and Class B ordinary shares as a single class as of May 12, 2025. Each holder of the Class A ordinary share is entitled to one vote per share and each holder of the Class B ordinary share is entitled to 100 votes per share.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Ostin Technology Group Co., Ltd.
(b)	Address of issuer's principal executive offices: Building 2, 101, 1 Kechuang Road, Qixia District, Nanjing, Jiangsu Province, China 210046
Item 2.
(a)	Name of person filing: LO SHENG-LUN
(b)	Address or principal business office or, if none, residence: NO. 22, LANE 370, SECTION 3, ZHISHAN ROAD, SHILIN DISTRICT, TAIPEI CITY 111001, TAIWAN
(c)	Citizenship: Taiwan
(d)	Title of class of securities: Class A Ordinary Shares, $0.001 par value per share
(e)	CUSIP No.: G67927114
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: According to the Form 6-K filed on May 12, 2025 by the issuer, 107,430,032 Class A ordinary shares are issued and outstanding. As of the date hereof, LO SHENG-LUN holds 3,814,034 Class A Ordinary Shares and no longer owns more than five percent of the Class A ordinary shares. This filing represents an exit filing for the reporting person.
(b)	Percent of class: 3.55%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 3,814,034 Class A Ordinary Shares
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 3,814,034 Class A Ordinary Shares
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	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:

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.

LO SHENG-LUN

Signature:	/s/ LO SHENG-LUN
Name/Title:	LO SHENG-LUN
Date:	06/25/2025

FAQ

How many Ostin Technology (OST) shares does Lo Sheng-Lun currently own?

3,814,034 Class A ordinary shares according to the Schedule 13G/A.

What percentage of OST’s Class A shares does this stake represent?

The holding equals 3.55 % of issued Class A shares as of 12 May 2025.

Why is this filing considered an "exit filing"?

Because the investor’s stake dropped below the 5 % ownership threshold, ending ongoing 13D/G reporting obligations.

Does Lo Sheng-Lun share voting or dispositive power with anyone else?

No. The filing states sole voting and dispositive power over the entire stake.

How does OST’s dual-class structure affect voting power?

Each Class A share has 1 vote, while each Class B share has 100 votes, lowering Class A holders’ overall influence.