Karpus Management takes 10.71% stake in AI Infrastructure Acquisition Corp. (AIIA)

Rhea-AI Filing Summary

AI Infrastructure Acquisition Corp. reports that Karpus Management, Inc. amended its Schedule 13G to show beneficial ownership of 2,066,198 shares of Common stock, representing 10.71% of the class. The filing states these shares are held directly by accounts managed by Karpus and that voting and disposition power is exercised solely by Karpus.

Insights

Institutional Ownership Analyst

Karpus now reports a 10.71% stake via managed accounts.

Karpus Management, Inc. reports beneficial ownership of 2,066,198 shares and sole voting and dispositive power over those shares. The filing attributes ownership to accounts managed by Karpus rather than to its parent, citing established informational barriers.

This amendment updates public ownership records; timing and trading activity that led to this position are not disclosed in the excerpt.

Key Figures

Beneficial ownership: 2,066,198 shares Percent of class: 10.71% CUSIP: G01336109 +1 more

4 metrics

Beneficial ownership 2,066,198 shares Amount beneficially owned per Schedule 13G/A amendment

Percent of class 10.71% Percent of Common stock beneficially owned

CUSIP G01336109 CUSIP for Common stock as listed in the filing

Signature date 05/14/2026 Date signed by Chief Compliance Officer on the amendment

Key Terms

Beneficially owned, Sole voting power, CUSIP

3 terms

Beneficially owned regulatory

"Amount beneficially owned: 2,066,198.00"

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 regulatory

"Sole Voting Power 2,066,198.00"

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.

CUSIP technical

"CUSIP No.: G01336109"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

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Available on EDGAR 05/14/2026 - 04:09 PM 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

(Amendment No. 1)

AI Infrastructure Acquisition Corp.

(Name of Issuer)

Common

(Title of Class of Securities)

G01336109

(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): G01336109

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 2,066,198.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 2,066,198.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,066,198.00

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)

10.71 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: AI Infrastructure Acquisition Corp.
(b)	Address of issuer's principal executive offices: 10845 Griffith Peak Drive, Suite 200, Las Vegas, Nevada 89135
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 No.: G01336109
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: 2,066,198.00
(b)	Percent of class: 10.71 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2,066,198.00
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 2,066,198.00
	(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

FAQ

What stake does Karpus Management report in AIIA?

Karpus Management reports beneficial ownership of 2,066,198 shares, equal to 10.71% of AI Infrastructure Acquisition Corp.'s Common stock, as stated in the amended Schedule 13G/A filing.

Who holds voting and dispositive power over the reported AIIA shares?

The filing states that Karpus Management, Inc. has sole voting power and sole dispositive power over 2,066,198 shares held in accounts it manages, per the Schedule 13G/A amendment.

Are the shares attributed to Karpus or its parent company?

The filing attributes the shares to accounts managed by Karpus and notes informational barriers with City of London Investment Group plc, so attribution to the parent is not required under the cited SEC release.

When was the Schedule 13G/A signed for this ownership update?

The Schedule 13G/A amendment is signed by Jodi L. Hedberg, Chief Compliance Officer, with signature date shown as 05/14/2026 on the excerpted filing.

Does the filing disclose how these shares were acquired or trading activity?

The excerpt does not describe acquisition methods or recent trades; it states only that the 2,066,198 shares are owned directly by accounts managed by Karpus without detailing the transactions.