[SCHEDULE 13G] PIONEER MUNICIPAL HIGH INCOME FUND, INC. SEC Filing

Rhea-AI Filing Summary

Pioneer Municipal High Income Fund, Inc. (MHI)Almitas Capital LLC reporting that it no longer holds any beneficial ownership in the fund’s common stock. As of the event date of 09/30/2025, Almitas reports beneficial ownership of 0 shares, representing 0.0% of the class. The filing also shows Almitas has no sole or shared power to vote or dispose of any shares, confirming it is below the 5% reporting threshold.

11/14/2025 - 09:47 PM

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

PIONEER MUNICIPAL HIGH INCOME FUND, INC.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

723763405

(CUSIP Number)

09/30/2025

(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. 723763405

1

Names of Reporting Persons

Almitas 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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: PIONEER MUNICIPAL HIGH INCOME FUND, INC.
(b)	Address of issuer's principal executive offices: 60 STATE STREET, 5TH FLOOR, BOSTON, MASSACHUSETTS, 02109
Item 2.
(a)	Name of person filing: Almitas Capital LLC
(b)	Address or principal business office or, if none, residence: 1460 4th Street, Suite 300 Santa Monica, CA 90401
(c)	Citizenship: Delaware
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 723763405
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: 0
(b)	Percent of class: 0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	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 foreign regulatory scheme applicable to Investment Advisor is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

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.

Almitas Capital LLC

Signature:	Ronald Mass
Name/Title:	Managing Principal
Date:	11/14/2025

FAQ

What does Almitas Capital LLC report in this Schedule 13G for MHI?

Almitas Capital LLC reports 0 shares of Pioneer Municipal High Income Fund, Inc. common stock beneficially owned, representing 0.0% of the class as of 09/30/2025.

Who is the reporting person in this MHI Schedule 13G filing?

The reporting person is Almitas Capital LLC, an investment adviser organized in Delaware with its principal business office at 1460 4th Street, Suite 300, Santa Monica, CA 90401.

What class of securities of MHI is covered in this Schedule 13G?

The filing covers common stock of Pioneer Municipal High Income Fund, Inc., with CUSIP number 723763405.

Does Almitas Capital LLC have any voting or dispositive power over MHI shares?

No. Almitas Capital LLC reports 0 sole voting power, 0 shared voting power, 0 sole dispositive power, and 0 shared dispositive power over MHI common stock.

What does the filing say about Almitas Capital LLC’s ownership relative to the 5% threshold in MHI?

The filing states ownership of 5 percent or less of the class, with Almitas specifically reporting 0.0% beneficial ownership of MHI common stock.

Who signed the Schedule 13G related to MHI and in what capacity?

The Schedule 13G was signed by Ronald Mass in his capacity as Managing Principal of Almitas Capital LLC on 11/14/2025.