Karpus reports 433,550 shares (5.56%) in StoneBridge

Karpus Management, Inc. reports beneficial ownership of 5.56%—433,550 shares—of StoneBridge Acquisition II Corp common stock as of 03/31/2026.

Rhea-AI Filing Summary

Karpus Management, Inc. reports beneficial ownership of 5.56%—433,550 shares—of StoneBridge Acquisition II Corp common stock as of 03/31/2026.

The filing (Schedule 13G) states these shares are owned directly by accounts managed by Karpus and that Karpus has sole voting and dispositive power over 433,550 shares. The CUSIP is G85096108.

Insights

Compliance Counsel

Schedules show passive beneficial ownership disclosure under Section 13 rules.

The Schedule 13G from Karpus Management, Inc. discloses beneficial ownership of 433,550 shares or 5.56% of common stock as of 03/31/2026. The form identifies sole voting and dispositive power held by Karpus.

Disclosure notes that voting and investment decisions are exercised by Karpus independently of its controller; subsequent filings may update percentages if holdings change.

Key Figures

Shares beneficially owned: 433,550 shares Percent of class: 5.56% CUSIP: G85096108 +3 more

6 metrics

Shares beneficially owned 433,550 shares ownership reported as of <date>03/31/2026</date>

Percent of class 5.56% percent of common stock reported in Schedule 13G

CUSIP G85096108 StoneBridge Acquisition II Corp common stock

Sole voting power 433,550 shares shares subject to sole voting power per filing

Sole dispositive power 433,550 shares shares subject to sole dispositive power per filing

Signature date 05/14/2026 filing signed by Chief Compliance Officer Jodi L. Hedberg

Key Terms

Schedule 13G, Beneficial ownership, Sole dispositive power

3 terms

Schedule 13G regulatory

"This statement is being filed by Karpus Management, 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.

Beneficial ownership financial

"Amount beneficially owned: 433,550.00"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 433,550.00"

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.

FAQ

What does the Schedule 13G filed for APAC state?

It discloses Karpus Management's beneficial ownership of 433,550 shares (5.56%). The filing lists sole voting and dispositive power and the CUSIP G85096108, with the position shown as of 03/31/2026.

Who is listed as the reporting person for APAC in this filing?

The reporting person is Karpus Management, Inc. The filing states Karpus is a registered investment adviser and that the shares are owned by accounts it manages, with an address in Pittsford, New York.

How much voting and dispositive power does Karpus report for APAC?

Karpus reports sole voting power and sole dispositive power over 433,550 shares. The Schedule 13G shows 0 shared voting or dispositive power in the disclosure.

What dates appear in the APAC Schedule 13G filing?

The ownership position is reported as of 03/31/2026 and the filing bears a signature dated 05/14/2026. These dates are shown in the statement's ownership and signature sections.

Does the filing attribute ownership to Karpus's controller, CLIG?

No. The filing states effective informational barriers exist so voting and investment power are exercised by Karpus independently of City of London Investment Group plc, and attribution to CLIG is not required.

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

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Accepted by SEC EDGAR 05/14/2026 - 04:09 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

StoneBridge Acquisition II Corp

(Name of Issuer)

Common

(Title of Class of Securities)

G85096108

(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): G85096108

1

Names of Reporting Persons

KARPUS MANAGEMENT, INC.

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

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 433,550.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 433,550.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

433,550.00

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)

5.56 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: StoneBridge Acquisition II Corp
(b)	Address of issuer's principal executive offices: One World Trade Center, Suite 8500, New York, NY 10007
Item 2.
(a)	Name of person filing: This statement is being filed by Karpus Management, Inc., d/b/a Karpus Investment Management ("Karpus" or the "Reporting Person"). Karpus is a registered investment adviser under Section 203 of the Investment Advisers Act of 1940. Karpus is controlled by City of London Investment Group plc ("CLIG"), which is listed on the London Stock Exchange. However, in accordance with SEC Release No. 34-39538 (January 12, 1998), effective informational barriers have been established between Karpus and CLIG such that voting and investment power over the subject securities is exercised by Karpus independently of CLIG, and, accordingly, attribution of beneficial ownership is not required between Karpus and CLIG. The Shares to which this Schedule 13G relates are owned directly by the accounts managed by Karpus.
(b)	Address or principal business office or, if none, residence: 183 Sully's Trail, Pittsford, New York 14534.
(c)	Citizenship: The members of the Karpus Management Committee are US citizens. Karpus is a New York corporation.
(d)	Title of class of securities: Common
(e)	CUSIP Number(s): G85096108
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: 433,550.00
(b)	Percent of class: 5.56 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 433,550.00
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 433,550.00
	(iv) Shared power to dispose or to direct the disposition of: 0.00
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.

KARPUS MANAGEMENT, INC.

Signature:	/s/ Jodi L. Hedberg
Name/Title:	Jodi L. Hedberg / Chief Compliance Officer
Date:	05/14/2026