[SCHEDULE 13G] Ostin Technology Group Co., Ltd. SEC Filing

Rhea-AI Filing Summary

Schedule 13G filing summary for Ostin Technology Group Co., Ltd. (NASDAQ: OST)

The filing, dated 30 June 2025, discloses that three related reporting persons — Streeterville Capital LLC, Streeterville Management LLC, and John M. Fife — have acquired an aggregate of 10,500,000 Class A Ordinary Shares of the issuer. The holding represents 9.8 % of OST’s outstanding Class A shares, based on 107,430,032 shares outstanding as of 12 May 2025.

All shares are held with sole voting and sole dispositive power; there is no shared voting or dispositive authority indicated. The shares are beneficially owned directly by Streeterville Capital LLC and indirectly by the other two filers. The parties filed under Schedule 13G, certifying the stake was not acquired to change or influence control of the issuer, which signals a passive investment posture rather than an activist agenda.

Key filing details:

• CUSIP: G67927114
• Issuer HQ: Nanjing, Jiangsu, China
• Reporting Persons’ HQ: 303 E Wacker Dr., Suite 1040, Chicago, IL 60601
• Citizenship: Streeterville entities — Utah, USA; John M. Fife — United States

No additional transactions, derivative positions, or intent to form a group were disclosed. The certification affirms the investment is not for control purposes, and there are no indications of plans that could materially alter OST’s governance or capital structure.

Insights

Securities Analyst

TL;DR: Passive investor now holds 9.8 % of OST, signaling sizeable but non-activist stake; limited immediate market impact.

The Schedule 13G reveals Streeterville Capital and related parties collectively own 10.5 million OST Class A shares. Filing as a 13G (versus 13D) indicates the investors’ passive intent, reducing near-term risk of governance disruption. The position sits just below the 10 % threshold that would trigger Section 16 insider reporting, suggesting calculated sizing. While a sub-10 % bloc is meaningful for liquidity considerations, there is no evidence of an imminent strategic transaction. For valuation models, the disclosure primarily affects ownership tables rather than cash-flow forecasts; therefore I classify market impact as neutral.

Corporate Governance Expert

TL;DR: 9.8 % holding gives filer influence but certification of passivity tempers governance concerns.

Cross-entity filing consolidates voting and dispositive power under Streeterville Capital, yet the 13G certification explicitly renounces control intent. Because all shares are held with sole authority, coordination risk with other shareholders is minimal. The stake nonetheless positions Streeterville as OST’s largest reported holder (public data dependent), enabling informal influence on management. Absent activism language, boards typically regard such holders as monitoring investors rather than agitators. Regulatory compliance appears straightforward; no exemptions or complex derivative structures are cited. Overall governance effect is limited, and I assign a neutral impact.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Ostin Technology Group Co., Ltd.

(Name of Issuer)

Class A Ordinary Shares

(Title of Class of Securities)

G67927114

(CUSIP Number)

06/30/2025

(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

Streeterville 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

UTAH

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 10,500,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 10,500,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10,500,000.00

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)

9.8 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: Based on 107,430,032 Class A Ordinary Shares outstanding as of May 12, 2025.

SCHEDULE 13G

CUSIP No. G67927114

1

Names of Reporting Persons

Streeterville Management, 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

UTAH

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 10,500,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 10,500,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10,500,000.00

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)

9.8 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: Based on 107,430,032 Class A Ordinary Shares outstanding as of May 12, 2025.

SCHEDULE 13G

CUSIP No. G67927114

1

Names of Reporting Persons

John M Fife

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 STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 10,500,000.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 10,500,000.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10,500,000.00

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)

9.8 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: Based on 107,430,032 Class A Ordinary Shares outstanding as of May 12, 2025.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Ostin Technology Group Co., Ltd.
(b)	Address of issuer's principal executive offices: ROOM 101 BUILDING 2 KECHUANG ROAD 1, QIXIA DISTRICT, NANJIANG JIANGSU, CHINA, 231300
Item 2.
(a)	Name of person filing: This report is filed by Streeterville Capital LLC, Streeterville Management LLC, and John M. Fife with respect to the Class A Ordinary Shares of the Issuer that are directly beneficially owned by Streeterville Capital LLC and indirectly beneficially owned by the other reporting and filing persons.
(b)	Address or principal business office or, if none, residence: 303 East Wacker Drive, Suite 1040, Chicago, IL 60601
(c)	Citizenship: Streeterville Capital LLC is a Utah limited liability company. Streeterville Management LLC is a Utah limited liability company. John M. Fife is a United States citizen.
(d)	Title of class of securities: Class A Ordinary Shares
(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: 10,500,000
(b)	Percent of class: 9.8%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 10,500,000
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 10,500,000
	(iv) Shared power to dispose or to direct the disposition of: 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:

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.

Streeterville Capital LLC

Signature:	John Fife
Name/Title:	President
Date:	06/30/2025

Streeterville Management, LLC

Signature:	John Fife
Name/Title:	President
Date:	06/30/2025

John M Fife

Signature:	John Fife
Name/Title:	John Fife
Date:	06/30/2025

FAQ

How many Ostin Technology Group (OST) shares does Streeterville Capital now own?

The filing reports 10,500,000 Class A Ordinary Shares beneficially owned.

What percentage of OST’s outstanding shares is held by Streeterville Capital and affiliates?

The stake represents 9.8 % of the Class A shares, based on 107,430,032 shares outstanding.

Is the investment considered passive or activist?

Filed on Schedule 13G, the investors certify the holding is passive and not intended to influence control.

Who are the reporting persons in this OST Schedule 13G?

The filers are Streeterville Capital LLC, Streeterville Management LLC, and John M. Fife.

Does the filing disclose any shared voting or dispositive power?

No. All voting and dispositive power is sole; shared power is reported as zero.