Decagon Asset Management (PONO) reports 661,496 shares, 5.43% stake

Rhea-AI Filing Summary

Pono Capital Four Inc ownership disclosure: Decagon Asset Management LLP and Benjamin John Durham report shared beneficial ownership of 661,496 Class A ordinary shares, representing 5.43% of the class as of 03/31/2026. The filing states shared voting and shared dispositive power over those shares.

The filing is a Schedule 13G reporting passive/institutional ownership with signatures dated 05/07/2026.

Insights

Institutional Ownership Analyst

Large holder reports 5.43% stake with shared voting and dispositive power.

The filing shows 661,496 Class A shares beneficially owned, reported under Schedule 13G as of 03/31/2026. The table lists shared voting power and shared dispositive power for both Decagon Asset Management LLP and Benjamin John Durham.

Ownership at this scale can be relevant to governance dynamics; subsequent filings may show changes in status or intent if the stake or voting control shifts.

Corporate Governance Specialist

Schedule 13G indicates passive/institutional reporting rather than an active acquisition.

The form type is Schedule 13G, which typically signals passive or institutional investment reporting rather than an active intent to influence control. The filing explicitly reports shared powers, not sole voting or dispositive authority.

Watch for any future amendments or a conversion to Schedule 13D, which would change the regulatory profile and disclosure expectations.

Key Figures

Filing type: Schedule 13G Shares beneficially owned: 661,496 shares Percent of class: 5.43% +3 more

6 metrics

Filing type Schedule 13G ownership disclosure

Shares beneficially owned 661,496 shares Class A ordinary shares as of 03/31/2026

Percent of class 5.43% percentage of Class A ordinary shares

Voting power (sole) 0 sole voting power reported

Voting power (shared) 661,496 shares shared voting power reported

Signatures dated 05/07/2026 filing signed by Olivia Cooper and Benjamin Durham

Key Terms

Schedule 13G, Beneficially owned, Shared dispositive power

3 terms

Schedule 13G regulatory

"Item 1. (a) Name of issuer: Pono Capital Four Inc"

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.

Beneficially owned financial

"Item 4. (a) Amount beneficially owned: 661496"

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.

Shared dispositive power regulatory

"Item 4. (iv) Shared power to dispose: 661,496"

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

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Accepted by SEC EDGAR 05/14/2026 - 11:20 AM Learn about SEC filing dates

FAQ

What stake does Decagon Asset Management report in PONO?

Decagon Asset Management reports beneficial ownership of 661,496 shares, equal to 5.43% of Class A ordinary shares. The Schedule 13G lists these shares as held with shared voting and shared dispositive power as of 03/31/2026.

Does the Schedule 13G for PONO indicate control by the holder?

No; the filing reports shared voting and shared dispositive power with zero sole voting or dispositive power. That indicates the holder does not claim sole control over voting or disposition of the shares.

Who filed the Schedule 13G for PONO on behalf of the holder?

The filing names Decagon Asset Management LLP and Benjamin John Durham as reporting persons, with signatures by Olivia Cooper (COO) and Benjamin Durham (CIO) dated 05/07/2026.

What does Schedule 13G filing type mean for PONO investors?

Schedule 13G is used for passive or institutional holders reporting beneficial ownership. It signals disclosure of a significant stake (5.43%) without asserting active control actions or a change in intent under the filing.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Pono Capital Four Inc

(Name of Issuer)

Class A ordinary shares, par value $0.0001 per share

(Title of Class of Securities)

G71702107

(CUSIP Number)

03/31/2026

(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): G71702107

1

Names of Reporting Persons

Decagon Asset Management LLP

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 KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 661,496.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 661,496.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

661,496.00

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)

5.43 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP Number(s): G71702107

1

Names of Reporting Persons

Benjamin John Durham

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 KINGDOM

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 661,496.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 661,496.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

661,496.00

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)

5.43 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Pono Capital Four Inc
(b)	Address of issuer's principal executive offices: Suite 210, 2nd Floor Windward III, Regatta Office Park, PO Box 500, Grand Cayman, CAYMAN ISLANDS KY-1106
Item 2.
(a)	Name of person filing: Decagon Asset Management LLP Benjamin John Durham
(b)	Address or principal business office or, if none, residence: 5 SWALLOW PLACE LONDON, United Kingdom W1B 2AF
(c)	Citizenship: Decagon Asset Management LLP - UNITED KINGDOM Benjamin John Durham - UNITED KINGDOM
(d)	Title of class of securities: Class A ordinary shares, par value $0.0001 per share
(e)	CUSIP Number(s): G71702107
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: 661496
(b)	Percent of class: 5.43 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Decagon Asset Management LLP - 0 Benjamin John Durham - 0
	(ii) Shared power to vote or to direct the vote: Decagon Asset Management LLP - 661,496 Benjamin John Durham - 661,496
	(iii) Sole power to dispose or to direct the disposition of: Decagon Asset Management LLP - 0 Benjamin John Durham - 0
	(iv) Shared power to dispose or to direct the disposition of: Decagon Asset Management LLP - 661,496 Benjamin John Durham - 661,496
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 acquired and are held in the ordinary course of business and 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.

Decagon Asset Management LLP

Signature:	Olivia Cooper
Name/Title:	COO
Date:	05/07/2026

Benjamin John Durham

Signature:	Benjamin Durham
Name/Title:	CIO
Date:	05/07/2026