Company Description

Pioneer Municipal High Income Fund, Inc. is a closed-ended fixed income mutual fund launched and managed by Pioneer Investment Management, Inc. It invests in the fixed income markets of the United States.

The fund primarily invests in municipal securities. It seeks to invest in securities across the credit rating and maturity spectrum.

The fund benchmarks the performance of its portfolio against the Barclays Municipal Bond Index and Barclays High Yield Municipal Bond Index.

Pioneer Municipal High Income Fund, Inc. was formed on March 13, 2003 and is domiciled in the United States.

Pioneer Municipal High Income Fund, Inc.

Country	United States
Founded	2003
Industry	Asset Management
Sector	Financials
CEO	Jonathan M. Chirunga

Contact Details

Address: 60 State Street Boston, Massachusetts 02109-1820 United States
Phone	617 422 4700
Website	us.pioneerinvestments.com

Stock Details

Ticker Symbol	MHI
Exchange	NYSE
Reporting Currency	USD
CIK Code	0001223026
CUSIP Number	723763108
ISIN Number	US7237631087
Employer ID	03-0512430

Key Executives

Name	Position
David J. Eurkus	Portfolio Manager
Jonathan M. Chirunga	Portfolio Manager

Latest SEC Filings

Date	Type	Title
Jul 17, 2025	N-23C-2	Filing
Jul 14, 2025	N-CEN	Filing
Jul 9, 2025	N-CSR	Filing
Jul 9, 2025	DEFA14A	Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Jun 27, 2025	NPORT-P	Monthly Portfolio Investments Report on Form N-PORT (Public)
Jun 10, 2025	DEF 14A	Other definitive proxy statements
May 20, 2025	PRE 14A	Other preliminary proxy statements
May 20, 2025	8-K	Current Report
May 15, 2025	SCHEDULE 13G/A	Filing
May 9, 2025	8-K	Current Report

View All SEC Filings