PT Tumbuh, Siwu report 8.34% iOThree stake

iOThree Ltd (IOTR) received a Schedule 13G reporting that PT Tumbuh Lestari Abadi and Victor Tanamal Siwu each beneficially own 252,874 Ordinary Shares, par value $0.0625 per share.

Rhea-AI Filing Summary

iOThree Ltd (IOTR) received a Schedule 13G reporting that PT Tumbuh Lestari Abadi and Victor Tanamal Siwu each beneficially own 252,874 Ordinary Shares, par value $0.0625 per share. This represents 8.34% of the outstanding Ordinary Shares, based on 3,032,199 shares outstanding as of July 20, 2026.

Each reporting person reports sole voting and dispositive power over these shares and no shared power. The filing is made jointly pursuant to a joint filing agreement between PT Tumbuh Lestari Abadi and Victor Tanamal Siwu.

Key Figures

Beneficial ownership per reporting person: 252,874 Ordinary Shares Ownership percentage per reporting person: 8.34% Shares outstanding: 3,032,199 Ordinary Shares +3 more

6 metrics

Beneficial ownership per reporting person 252,874 Ordinary Shares Amount beneficially owned by each of PT Tumbuh Lestari Abadi and Victor Tanamal Siwu

Ownership percentage per reporting person 8.34% Percent of class for each reporting person based on shares outstanding as of July 20, 2026

Shares outstanding 3,032,199 Ordinary Shares Issued and outstanding as of July 20, 2026, used to calculate ownership percentage

Par value per Ordinary Share $0.0625 per share Par value of iOThree Ltd’s Ordinary Shares

Sole Voting Power 252,874.00 shares Sole voting power reported by each reporting person

Shared Voting Power 0.00 shares Shared voting power reported by each reporting person

Key Terms

beneficially owned, Sole Voting Power, Sole Dispositive Power, Schedule 13G, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: See Row 9 of the cover page"

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 Voting Power financial

"5 | Sole Voting Power 252,874.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Sole Dispositive Power financial

"7 | Sole Dispositive Power 252,874.00"

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.

Schedule 13G regulatory

"this statement is being jointed filed by Victor Tanamal Siwu"

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.

Joint Filing Agreement regulatory

"Exhibit 1 - Joint Filing Agreement Agreement by and between"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What percentage of iOThree Ltd (IOTR) does PT Tumbuh Lestari Abadi and Victor Tanamal Siwu report owning?

PT Tumbuh Lestari Abadi and Victor Tanamal Siwu each report beneficial ownership of 8.34% of iOThree Ltd’s Ordinary Shares, based on 3,032,199 shares issued and outstanding as of July 20, 2026.

How many iOThree Ltd (IOTR) shares are beneficially owned by each reporting person?

Each of PT Tumbuh Lestari Abadi and Victor Tanamal Siwu reports beneficial ownership of 252,874 Ordinary Shares of iOThree Ltd, with sole voting and sole dispositive power over these shares.

What share count did iOThree Ltd (IOTR) use to calculate the 8.34% ownership?

The 8.34% ownership figure is calculated based on 3,032,199 Ordinary Shares of iOThree Ltd issued and outstanding as of July 20, 2026, as stated in the filing.

Do the reporting persons have shared voting or dispositive power over iOThree Ltd (IOTR) shares?

No. The filing states that each reporting person has sole voting power and sole dispositive power over 252,874 shares and 0 shares of shared voting or dispositive power.

What type of security of iOThree Ltd (IOTR) is reported in this Schedule 13G?

The security reported is Ordinary Shares, par value $0.0625 per share of iOThree Ltd, identified with CUSIP G4940T112.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/26/2026 - 05:03 PM EDT Accepted by SEC EDGAR 08/26/2026 - 05:03 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

iOThree Limited

(Name of Issuer)

Ordinary Shares, par value $0.0625 per share

(Title of Class of Securities)

G4940T112

(CUSIP Number)

04/02/2026

(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): G4940T112

1

Names of Reporting Persons

PT Tumbuh Lestari Abadi

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

INDONESIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 252,874.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 252,874.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

252,874.00

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)

8.34 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: *This percentage is calculated based on 3,032,199 Ordinary Shares of the Issuer issued and outstanding as of July 20, 2026.

SCHEDULE 13G

CUSIP Number(s): G4940T112

1

Names of Reporting Persons

Victor Tanamal Siwu

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

INDONESIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 252,874.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 252,874.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

252,874.00

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)

8.34 %

12

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person: *This percentage is calculated based on 3,032,199 Ordinary Shares of the Issuer issued and outstanding as of July 20, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: iOThree Limited
(b)	Address of issuer's principal executive offices: 161 Kallang Way, #07-08, Mapletree Hi-Tech @ Kallang Way, Singapore 349247
Item 2.
(a)	Name of person filing: This statement is being jointed filed by Victor Tanamal Siwu and PT Tumbuh Lestari Abadi, a company incorporated in Indonesia (each a "Reporting Person").
(b)	Address or principal business office or, if none, residence: Victor Tanamal Siwu: Centennial Tower Lt. 36 Unit G-H, Jl. Gatot Subroto No. 25, Kel. Karet Semanggi, Kec. Setiabudi, Jakarta Selatan, DKI Jakarta 12930, Indonesia PT Tumbuh Lestari Abadi: Centennial Tower Lt. 36 Unit G-H, Jl. Gatot Subroto No. 25, Kel. Karet Semanggi, Kec. Setiabudi, Jakarta Selatan, DKI Jakarta 12930, Indonesia
(c)	Citizenship: Victor Tanamal Siwu: Indonesia PT Tumbuh Lestari Abadi: Indonesia
(d)	Title of class of securities: Ordinary Shares, par value $0.0625 per share
(e)	CUSIP Number(s): G4940T112
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: See Row 9 of the cover page for each Reporting Person.
(b)	Percent of class: See Row 11 of the cover page for each Reporting Person.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See Row 5 of the cover page for each Reporting Person.
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: See Row 7 of the cover page for each Reporting Person.
	(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.

PT Tumbuh Lestari Abadi

Signature:	/s/ Victor Tanamal Siwu
Name/Title:	Victor Tanamal Siwu/Director
Date:	08/26/2026

Victor Tanamal Siwu

Signature:	/s/ Victor Tanamal Siwu
Name/Title:	Victor Tanamal Siwu
Date:	08/26/2026

Exhibit Information

Exhibit 1 - Joint Filing Agreement Agreement by and between Victor Tanamal Siwu and PT Tumbuh Lestari Abadi with respect to the filing of this Schedule 13G.*