MHI / Pioneer Municipal High Income Fund, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

Pioneer Municipal High Income Fund, Inc.
US ˙ NYSE ˙ US7237631087
HINDI NA ACTIVE ANG SIMBONG ITO

Mga Batayang Estadistika
LEI 1SKUXW31ZFWF61CETQ82
CIK 1223026
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Pioneer Municipal High Income Fund, Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 27, 2025 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on September 08, 2025, pursuant to the provisions of Rule 12d2-2 (a).

July 9, 2025 DEFA14A

UNITED STATES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [ ] Definitive P

June 10, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 20, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

CEF Funds Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 20, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2025 PIONEER MUNICIPAL HI

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2025 PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Registrant) PIONEER MUNICIPAL HIGH INCOME ADVANTAGE FUND, INC. PIONEER MUNICIPAL HIGH INCOME OPPORTUNITIES FUND, INC. (Co-Re

May 9, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 PIONEER FLOATING RATE

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 PIONEER FLOATING RATE FUND, INC. (Registrant) PIONEER DIVERSIFIED HIGH INCOME FUND, INC. PIONEER HIGH INCOME FUND, INC. PIONEER MUNICIPAL HIGH INCOME FUND, INC. PIONEE

May 9, 2025 EX-99.1

PIONEER FLOATING RATE FUND, INC. AMENDED AND RESTATED BYLAWS ARTICLE I

EX-99.1 PIONEER FLOATING RATE FUND, INC. AMENDED AND RESTATED BYLAWS ARTICLE I OFFICES Section 1. PRINCIPAL OFFICE. The principal office of the Corporation in the State of Maryland shall be located at such place as the Board of Directors may designate. Section 2. ADDITIONAL OFFICES. The Corporation may have additional offices, including a principal executive office, at such places as the Board of

May 8, 2025 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025 PIONEER FLOATING RATE FUND, INC. (Registrant) PIONEER DIVERSIFIED HIGH INCOME FUND, INC. PIONEER HIGH INCOME FUND, INC. PIONEER MUNICIPAL HIGH INCOME FUND, INC. PIONEER MU

April 2, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2025 PIONEER FLOATING RATE FUND, INC. (Registrant) PIONEER DIVERSIFIED HIGH INCOME FUND, INC. PIONEER HIGH INCOME FUND, INC. PIONEER MUNICIPAL HIGH INCOME FUND, INC. PIONEER

March 26, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒         Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro

March 25, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 25, 2025 PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Registrant) PIONEER MUNICIPAL HIGH INCOME ADVANTAGE FUND, INC. PIONEER MUNICIPAL HIGH INCOME OPPORTUNITIES FUND, INC. (Co-Regi

March 25, 2025 EX-99.1

Pioneer Municipal High Income Advantage Fund, Inc. (MAV) Pioneer Municipal High Income Fund, Inc. (MHI) Pioneer Municipal High Income Opportunities Fund, Inc. (MIO) (each a “Fund” and together, the “Funds”) PIONEER CLOSED-END FUNDS ANNOUNCE POSTPONEM

Exhibit 99.1 Pioneer Municipal High Income Advantage Fund, Inc. (MAV) Pioneer Municipal High Income Fund, Inc. (MHI) Pioneer Municipal High Income Opportunities Fund, Inc. (MIO) (each a “Fund” and together, the “Funds”) PIONEER CLOSED-END FUNDS ANNOUNCE POSTPONEMENT OF MARCH 26, 2025 SPECIAL MEETING OF STOCKHOLDERS BOSTON, MA – (BUSINESS WIRE) – March 25, 2025. Each of the Funds listed above annou

February 24, 2025 DFAN14A

RULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

RULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant       ☐ Filed by a Party other than the Registrant      ☑ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Statement ☒ Definitive Additional Materials ☐ Soliciting Material Under Rule 14a-12 Pioneer Municipal High Income Fund (Name of Registrant as Specified In Its Charter) Saba Capital Management, L.

February 11, 2025 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [   ] Preliminary Proxy Statement [   ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [X] Definiti

February 10, 2025 DEFC14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ¨ Filed by a Party other than the Registrant þ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) þ Definitive Proxy Statement ☐ Definitive Additional Materials ☐ Soliciting Material Under Rule 14a-12 Pioneer Municipal High Income Fund, Inc.

February 10, 2025 CORRESP

Morgan, Lewis & Bockius LLP One Federal Street Boston, MA 02110 February 10, 2025

Morgan, Lewis & Bockius LLP One Federal Street Boston, MA 02110 February 10, 2025 VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, NE Washington, D.

January 31, 2025 PRRN14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

January 29, 2025 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [  ] Check the appropriate box: [X] Preliminary Proxy Statement [  ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [  ] Definitiv

January 28, 2025 EX-4

Schedule A

EX-4 2 exhibit4.htm EXHIBIT 4 EXHIBIT 4 Schedule A This Schedule sets forth information with respect to each purchase and sale of Common Shares which were effectuated by Saba Capital since the filing of the Schedule 13D/A on 12/30/24. All transactions were effectuated in the open market through a broker. Trade Date Buy/Sell Shares Price 12/30/2024 Buy 21,287 9.29 1/2/2025 Buy 5,889 9.35 1/8/2025 B

January 28, 2025 EX-3

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

EX-3 3 exhibit3.htm EXHIBIT 3 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant o Filed by a Party other than the Registrant þ Check the appropriate box: þ Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Definitive Proxy Statement o Definitive Additional Materials o S

January 24, 2025 PREC14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant o Filed by a Party other than the Registrant þ Check the appropriate box: þ Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Definitive Proxy Statement o Definitive Additional Materials o Soliciting Material Under Rule 14a-12 Pioneer Municipal High Income Fund, Inc.

December 30, 2024 EX-2

MHI / Pioneer Municipal High Income Fund, Inc. / Saba Capital Management, L.P. - EXHIBIT 2

EXHIBIT 2 Schedule A This Schedule sets forth information with respect to each purchase and sale of Common Shares which were effectuated by Saba Capital since the filing of the Schedule 13D/A on 11/26/24.

December 13, 2024 SC 13D/A

MHI / Pioneer Municipal High Income Fund, Inc. / BANK OF AMERICA CORP /DE/ - SC 13D/A Activist Investment

SC 13D/A 1 ef20039682sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4) PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Bank of America Corporation Bank of America Corporate C

December 13, 2024 EX-99.2

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY

EX-99.2 3 ef20039682ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the “Corporation”), does hereby make, constitute, and appoint each of Marie Andre, Szabina Biro, Andres Ortiz Custodio, Kamil Dziedzic, Valerie Ezeagbo, Kelvin Kwok, Frank Lui, James Todd, Ben Tsoi, Michelle Wong, and Monica Yake as an

December 13, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ef20039682ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or an

November 26, 2024 SC 13D/A

MHI / Pioneer Municipal High Income Fund, Inc. / Saba Capital Management, L.P. - FORM SC 13D/A Activist Investment

SC 13D/A 1 formsc13da.htm FORM SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* PIONEER MUNICIPAL HIGH INCOME FUND, INC (Name of Issuer) Common Shares, No par value (Title of Class of Securities) 723763108 (CUSIP Number) Saba Capital Management, L.P. 405 Lexington Avenue 58th Floor New York,

November 14, 2024 SC 13G

MHI / Pioneer Municipal High Income Fund, Inc. / RIVERNORTH CAPITAL MANAGEMENT, LLC Passive Investment

SC 13G 1 fp0091017-2sc13g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 0)* Pioneer Municipal High Income Fund, Inc. (Name of Issuer) Common (Title of Class of Securities) 723763108 (CUSIP Number) Mar

August 22, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [X] Definitive P

August 21, 2024 SC 13D/A

MHI / Pioneer Municipal High Income Fund, Inc. / Saba Capital Management, L.P. - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* PIONEER MUNICIPAL HIGH INCOME FUND, INC (Name of Issuer) Common Shares, No par value (Title of Class of Securities) 723763108 (CUSIP Number) Saba Capital Management, L.P. 405 Lexington Avenue 58th Floor New York, NY 10174 Attention: Michael D'Angelo (2

August 19, 2024 DEFC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [ ] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [X] Definitive P

August 15, 2024 CORRESP

Morgan, Lewis & Bockius LLP One Federal Street Boston, MA 02110

Morgan, Lewis & Bockius LLP One Federal Street Boston, MA 02110 August 15, 2024 VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, NE Washington, D.

August 9, 2024 PREC14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant [X] Filed by a Party other than the Registrant [ ] Check the appropriate box: [X] Preliminary Proxy Statement [ ] Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) [ ] Definitive P

July 19, 2024 EX-99.1

AMUNDI US ANNOUNCES PROPOSED TRANSACTION RELATING TO PIONEER CLOSED-END FUNDS

Exhibit 99.1 AMUNDI US ANNOUNCES PROPOSED TRANSACTION RELATING TO PIONEER CLOSED-END FUNDS FOR IMMEDIATE RELEASE July 19, 2024 Boston, Massachusetts— Amundi US today announced a proposed transaction affecting the following Pioneer closed-end funds: • Pioneer Diversified High Income Fund, Inc. (NYSEAMER: HNW) • Pioneer Floating Rate Fund, Inc. (NYSE: PHD) • Pioneer High Income Fund, Inc. (NYSE: PHT

July 19, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 19, 2024 PIONEER FLOATING RATE FUND, INC. (Registrant) PIONEER DIVERSIFIED HIGH INCOME FUND, INC. PIONEER HIGH INCOME FUND, INC. PIONEER MUNICIPAL HIGH INCOME FUND, INC. PIONEER

April 1, 2024 SC 13D/A

MHI / Pioneer Municipal High Income Fund, Inc. / Saba Capital Management, L.P. - FORM SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* PIONEER MUNICIPAL HIGH INCOME FUND, INC (Name of Issuer) Common Shares, No par value (Title of Class of Securities) 723763108 (CUSIP Number) Saba Capital Management, L.P. 405 Lexington Avenue 58th Floor New York, NY 10174 Attention: Michael D'Angelo (2

March 4, 2024 EX-99.2

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY

EX-99.2 3 ef20022799ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the "Corporation"), does hereby make, constitute, and appoint Michael Jentis as an attorney-in-fact for the Corporation acting for the Corporation and in the Corporation's name, place and stead, for the Corporation's use and benefit, to

March 4, 2024 SC 13D/A

MHI / Pioneer Municipal High Income Fund, Inc. / BANK OF AMERICA CORP /DE/ - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Bank of America Corporation Bank of America Corporate Center 100 North Tryon Street Charlotte,

March 4, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ef20022799ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or an

January 26, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ef20019811ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or an

January 26, 2024 EX-99.6

January 24, 2024

EX-99.6 4 ef20019811ex99-6.htm EXHIBIT 99.6 Exhibit 99.6 January 24, 2024 Banc of America Preferred Funding Corporation One Bryant Park 1111 Avenue of the Americas, 3rd Floor New York, New York 10036 Re: Acknowledgement and Consent of Waiver Concerning Variable Rate MuniFund Term Preferred Shares, Series 2021 (“2021 VMTP Shares”) of Pioneer Municipal High Income Fund, Inc. (the “Fund”) Ladies and

January 26, 2024 SC 13D/A

MHI / Pioneer Municipal High Income Fund, Inc. / BANK OF AMERICA CORP /DE/ - SC 13D/A Activist Investment

SC 13D/A 1 ef20019811sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Bank of America Corporation Bank of America Corporate

January 26, 2024 EX-99.2

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY

EX-99.2 3 ef20019811ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the “Corporation”), does hereby make, constitute, and appoint Michael Jentis as an attorney-in-fact for the Corporation acting for the Corporation and in the Corporation's name, place and stead, for the Corporation's use and benefit, to

January 5, 2024 EX-1

JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)

EX-1 2 exhibit1.htm EXHIBIT 1 EXHIBIT 1 JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agree

January 5, 2024 SC 13D

MHI / Pioneer Municipal High Income Fund, Inc. / Saba Capital Management, L.P. - FORM SC 13D Activist Investment

SC 13D 1 formsc13d.htm FORM SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* PIONEER MUNICIPAL HIGH INCOME FUND, INC (Name of Issuer) Common Shares, No par value (Title of Class of Securities) 723763108 (CUSIP Number) Saba Capital Management, L.P. 405 Lexington Avenue 58th Floor New York, NY 1017

October 20, 2023 SC 13D/A

MHI / Pioneer Municipal High Income Fund Inc / BANK OF AMERICA CORP /DE/ - SC 13D/A Activist Investment

SC 13D/A 1 ef20012598sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Bank of America Corporation Bank of America Corporate

October 20, 2023 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 ef20012598ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or an

October 20, 2023 EX-99.2

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY

EX-99.2 3 ef20012598ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the “Corporation”), does hereby make, constitute, and appoint Michael Jentis as an attorney-in-fact for the Corporation acting for the Corporation and in the Corporation’s name, place and stead, for the Corporation’s use and benefit, to

October 3, 2023 SC 13G/A

MHI / Pioneer Municipal High Income Fund Inc / Saba Capital Management, L.P. - FORM SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* PIONEER MUNICIPAL HIGH INCOME FUND, INC (Name of Issuer) Common Stock, No par value (Title of Class of Securities) 723763108 (CUSIP Number) September 27, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designat

August 31, 2023 SC 13G

MHI / Pioneer Municipal High Income Fund Inc / Saba Capital Management, L.P. - FORM SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.)* PIONEER MUNICIPAL HIGH INCOME FUND, INC (Name of Issuer) Common Stock, No par value (Title of Class of Securities) 723763108 (CUSIP Number) August 22, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the r

July 26, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant |X| Filed by a Party other than the Registrant | | Check the appropriate box: | | Preliminary Proxy Statement | | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |X|

June 7, 2023 EX-99.3

VOTING TRUST AGREEMENT

Exhibit 99.3 VOTING TRUST AGREEMENT THIS VOTING TRUST AGREEMENT (this “Agreement”) is made and entered into effective for all purposes and in all respects as of May 31, 2023 by and among Lord Securities Corporation, as trustee (the “Trustee” or any successor thereto), Banc of America Preferred Funding Corporation, a Delaware corporation, including its successors and assigns by operation of law (“P

June 7, 2023 SC 13D

MHI / Pioneer Municipal High Income Fund Inc / BANK OF AMERICA CORP /DE/ - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. n/a)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Bank of America Corporation Bank of America Corporate Center 100 North Tryon Street Charlotte

June 7, 2023 EX-99.2

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY

EX-99.2 3 brhc20054109ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the “Corporation”), does hereby make, constitute, and appoint Michael Jentis as an attorney-in-fact for the Corporation acting for the Corporation and in the Corporation’s name, place and stead, for the Corporation’s use and benefit,

June 7, 2023 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder (including a

June 7, 2023 EX-99.4

TABLE OF CONTENTS

Exhibit 99.4 VMTP Purchase Agreement Pioneer Municipal High Income Fund, Inc. and Banc of America Preferred Funding Corporation May 31, 2023 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 1.1 Incorporation of Certain Definitions by Reference 7 ARTICLE II PURCHASE AND TRANSFERS, COSTS AND EXPENSES; ADDITIONAL FEE 8 2.1 Purchase and Transfer of VMTP Shares 8 2.2 Operating Expenses; Fees 8 2.3 Additi

June 7, 2023 EX-99.5

REGISTRATION RIGHTS AGREEMENT

Exhibit 99.5 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this "Agreement"), executed as of May 31, 2023, is made among (i) Pioneer Municipal High Income Fund, Inc., a closed-end fund organized as a Maryland corporation (the "Fund") and (ii) Banc of America Preferred Funding Corporation, a wholly-owned subsidiary of Bank of America Corporation, organized and existing under the

June 1, 2023 SC 13D/A

MHI / Pioneer Municipal High Income Fund Inc / WELLS FARGO & COMPANY/MN - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Mary E. Schaffner Senior Vice President and Senior Lead Counsel Wells Fargo & Company

June 1, 2023 EX-99.2

LIMITED POWER OF ATTORNEY

EX-99.2 Exhibit 99.2 LIMITED POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Debra Cho, Patricia Arce and Stacy Otieno, acting alone, the undersigned’s true and lawful attorney-in-fact to: (1) complete and sign, for and on behalf of the undersigned, all reports and filings required by Sections 13 and 16 of the Securities Exchange Act of 193

June 1, 2023 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 d487725dex991.htm EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT This Statement is filed by Wells Fargo & Company on its own behalf and on behalf of Wells Fargo Municipal Capital Strategies, LLC. Aggregate beneficial ownership reported by Wells Fargo & Company under Item 11 on page 2 is on a consolidated basis and includes any beneficial ownership separately reported herein by Wells Fargo M

March 23, 2023 EX-99.2

LIMITED POWER OF ATTORNEY

EX-99.2 Exhibit 99.2 LIMITED POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Debra Cho, Patricia Arce and Stacy Otieno, acting alone, the undersigned’s true and lawful attorney-in-fact to: (1) complete and sign, for and on behalf of the undersigned, all reports and filings required by Sections 13 and 16 of the Securities Exchange Act of 193

March 23, 2023 SC 13D/A

MHI / Pioneer Municipal High Income Fund Inc / WELLS FARGO & COMPANY/MN - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Mary E. Schaffner Senior Vice President and Senior Lead Counsel Wells Fargo & Company

March 23, 2023 EX-99.10

[AMENDMENT NO. 1 TO THE SECOND AMENDED AND RESTATED VMTP PURCHASE AGREEMENT DATED MARCH 21, 2023]

EX-99.10 Exhibit 99.10 [AMENDMENT NO. 1 TO THE SECOND AMENDED AND RESTATED VMTP PURCHASE AGREEMENT DATED MARCH 21, 2023] PIONEER MUNICIPAL HIGH INCOME FUND, INC. AMENDMENT NO. 1 TO THE SECOND AMENDED AND RESTATED VMTP PURCHASE AGREEMENT, DATED APRIL 21, 2021 This amendment (the “Amendment”), dated as of March 21, 2023, to the Second Amended and Restated VMTP Purchase Agreement, dated as of April 2

March 23, 2023 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT This Statement is filed by Wells Fargo & Company on its own behalf and on behalf of Wells Fargo Municipal Capital Strategies, LLC. Aggregate beneficial ownership reported by Wells Fargo & Company under Item 11 on page 2 is on a consolidated basis and includes any beneficial ownership separately reported herein by Wells Fargo Municipal Capital Strategies,

February 14, 2023 SC 13G

MHI / Pioneer Municipal Income Trust / RIVERNORTH CAPITAL MANAGEMENT, LLC Passive Investment

SC 13G 1 fp0082124-6sc13g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 0)* Pioneer Municipal High Income Fund, Inc. (Name of Issuer) Common (Title of Class of Securities) 723763108 (CUSIP Number) Mar

November 16, 2022 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT This Statement is filed by Wells Fargo & Company on its own behalf and on behalf of Wells Fargo Municipal Capital Strategies, LLC. Aggregate beneficial ownership reported by Wells Fargo & Company under Item 11 on page 2 is on a consolidated basis and includes any beneficial ownership separately reported herein by Wells Fargo Municipal Capital Strategies,

November 16, 2022 EX-99.2

LIMITED POWER OF ATTORNEY

EX-99.2 Exhibit 99.2 LIMITED POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Debra Cho, Patricia Arce and Stacy Otieno, acting alone, the undersigned’s true and lawful attorney-in-fact to: (1) complete and sign, for and on behalf of the undersigned, all reports and filings required by Sections 13 and 16 of the Securities Exchange Act of 193

November 16, 2022 SC 13D/A

MHI / Pioneer Municipal Income Trust / WELLS FARGO & COMPANY/MN - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Mary E. Schaffner Senior Vice President and Senior Lead Counsel Wells Fargo & Company

March 30, 2022 NPORT-EX

Level 1 – unadjusted quoted prices in active markets for identical securities. Level 2 – other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risks, etc.). Level 3 – significan

Pioneer Municipal High Income Fund, Inc. Ticker Symbol: MHI Schedule of Investments | 1/31/22 (unaudited) Principal Amount USD ($) Value UNAFFILIATED ISSUERS — 149.5% Municipal Bonds — 149.5% of Net Assets(a) Arizona — 2.4% 4,000,000(b) City of Phoenix, 5.00%, 7/1/27 $   4,636,760 2,220,000 City of Phoenix, Industrial Development Authority, 3rd & Indian School Assisted Living Project, 5.40%, 10/1/

September 29, 2021 NPORT-EX

Level 1

Pioneer Municipal High Income Fund, Inc. Schedule of Investments | July 31, 2021 Ticker Symbol: MHI Principal Amount USD ($) Value UNAFFILIATED ISSUERS - 145.9% MUNICIPAL BONDS - 145.9% of Net Assets(a) Arizona - 2.4% 4,000,000(b) City of Phoenix, 5.0%, 7/1/27 $4,881,040 2,230,000 City of Phoenix, Industrial Development Authority, 3rd & Indian School Assisted Living Project, 5.4%, 10/1/36 2,330,70

April 23, 2021 EX-99.1

Joint Filing Agreement

EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT This Statement is filed by Wells Fargo & Company on its own behalf and on behalf of Wells Fargo Municipal Capital Strategies, LLC. Aggregate beneficial ownership reported by Wells Fargo & Company under Item 11 on page 2 is on a consolidated basis and includes any beneficial ownership separately reported herein by Wells Fargo Municipal Capital Strategies,

April 23, 2021 EX-99.9

Second Amended and Restated Registration Rights Agreement, dated as of April 21, 2021

Exhibit 99.9 SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT THIS SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this ?Agreement?), executed as of April 21, 2021, is made among (i) Pioneer Municipal High Income Fund, Inc. (formerly, Pioneer Municipal High Income Trust), a closed-end fund organized as a Maryland corporation (the ?Fund?) and (ii) Wells Fargo Municipal Capital S

April 23, 2021 EX-99.2

Limited Power of Attorney

Exhibit 99.2 LIMITED POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Debra Cho, Patricia Arce and Stacy Otieno, acting alone, the undersigned?s true and lawful attorney-in-fact to: (1) complete and sign, for and on behalf of the undersigned, all reports and filings required by Sections 13 and 16 of the Securities Exchange Act of 1934, as am

April 23, 2021 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* PIONEER MUNICIPAL HIGH INCOME FUND, INC. (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Mary E. Schaffner Senior Vice President and Senior Company Counsel Wells Fargo & Compa

April 23, 2021 EX-99.8

Second Amended and Restated VMTP Purchase Agreement, dated as of April 21, 2021

Exhibit 99.8 Second Amended and Restated VMTP Purchase Agreement Pioneer Municipal High Income Fund, Inc. and Wells Fargo Municipal Capital Strategies, LLC April 21, 2021 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 2 1.1 Incorporation of Certain Definitions by Reference 8 ARTICLE II PURCHASE AND TRANSFERS, COSTS AND EXPENSES; ADDITIONAL FEE 8 2.1 Purchase and Transfer of VMTP Shares 8 2.2 Operati

April 21, 2021 EX-3.1

Articles of Incorporation of each Maryland corporation

PIONEER FLOATING RATE FUND, INC. ARTICLES OF INCORPORATION ARTICLE I INCORPORATOR The undersigned, Hirsh Ament, whose address is c/o Venable LLP, 750 E. Pratt Street, Suite 900, Baltimore, MD 21202, being at least 18 years of age, does hereby form a corporation under the general laws of the State of Maryland. ARTICLE II NAME The name of the corporation (the ?Corporation?) is: Pioneer Floating Rate

April 21, 2021 EX-3.2

Bylaws of each Maryland corporation

PIONEER FLOATING RATE FUND, INC. BYLAWS ARTICLE I OFFICES Section 1. PRINCIPAL OFFICE. The principal office of the Corporation in the State of Maryland shall be located at such place as the Board of Directors may designate. Section 2. ADDITIONAL OFFICES. The Corporation may have additional offices, including a principal executive office, at such places as the Board of Directors may from time to ti

April 21, 2021 EX-2.1

Merger Agreements

AGREEMENT AND PLAN OF MERGER THIS AGREEMENT AND PLAN OF MERGER (this ?Agreement?) is made as of this 21st day of April, 2021, between Pioneer Floating Rate Trust, a Delaware statutory trust (the ?Acquired Fund?), and Pioneer Floating Rate Fund, Inc.

April 21, 2021 EX-99.2

PIONEER MUNICIPAL HIGH INCOME FUND, INC. ARTICLE I

PIONEER MUNICIPAL HIGH INCOME FUND, INC. BYLAWS ARTICLE I OFFICES Section 1. PRINCIPAL OFFICE. The principal office of the Corporation in the State of Maryland shall be located at such place as the Board of Directors may designate. Section 2. ADDITIONAL OFFICES. The Corporation may have additional offices, including a principal executive office, at such places as the Board of Directors may from ti

April 21, 2021 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2021 PIONEER FLOATING RATE TRUST (Registrant) PIONEER DIVERSIFIED HIGH INCOME TRUST PIONEER MUNICIPAL HIGH INCOME TRUST PIONEER MUNICIPAL HIGH INCOME ADVANTAGE TRUST PIONEER

April 21, 2021 EX-99.(12)

visit us: www.amundipioneer.com/us

Pioneer Municipal High Income Trust Semiannual Report | October 31, 2020 Ticker Symbol: MHI Beginning in or after April 2021, as permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Trust?s shareholder reports like this one will no longer be sent by mail, unless you specifically request paper copies of the reports from the Trust or from your financial intermediary, such as a broker-dealer, bank or insurance company.

April 21, 2021 8-A12B/A

- PIONEER MUNICIPAL HIGH INCOME TRUST

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A Amendment No.

April 21, 2021 N-8A/A

- PIONEER MUNICIPAL HIGH INCOME TRUST

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-8A/A AMENDMENT TO AND ADOPTION OF NOTIFICATION OF REGISTRATION FILED PURSUANT TO SECTION 8(a) OF THE INVESTMENT COMPANY ACT OF 1940 The undersigned investment company, a Maryland corporation (the ?Registrant?), hereby notifies the U.S. Securities and Exchange Commission that it is adopting as its own the registration of

April 21, 2021 EX-99.1

PIONEER MUNICIPAL HIGH INCOME FUND, INC. ARTICLES OF INCORPORATION ARTICLE I

PIONEER MUNICIPAL HIGH INCOME FUND, INC. ARTICLES OF INCORPORATION ARTICLE I INCORPORATOR The undersigned, Hirsh Ament, whose address is c/o Venable LLP, 750 E. Pratt Street, Suite 900, Baltimore, MD 21202, being at least 18 years of age, does hereby form a corporation under the general laws of the State of Maryland. ARTICLE II NAME The name of the corporation (the ?Corporation?) is: Pioneer Munic

April 7, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 7, 2021 PIONEER FLOATING RATE TRUST (Registrant) PIONEER DIVERSIFIED HIGH INCOME TRUST PIONEER MUNICIPAL HIGH INCOME TRUST PIONEER MUNICIPAL HIGH INCOME ADVANTAGE TRUST PIONEER

April 7, 2021 EX-99.1

PIONEER US CLOSED-END FUNDS TO REDOMICILE TO MARYLAND

Press Release dated April 7, 2021 PIONEER US CLOSED-END FUNDS TO REDOMICILE TO MARYLAND FOR IMMEDIATE RELEASE April 7, 2021 Boston, Massachusetts — The Board of each of Pioneer Diversified High Income Trust (NYSE American: HNW), Pioneer Floating Rate Trust (NYSE: PHD), Pioneer High Income Trust (NYSE: PHT), Pioneer Municipal High Income Advantage Trust (NYSE: MAV) and Pioneer Municipal High Income Trust (NYSE: MHI) (each, a “Fund”) announced today that it has voted to redomicile the Fund from a Delaware statutory trust to a Maryland corporation (in each case, the “redomiciling”).

April 1, 2021 NPORT-EX

Level 1

Pioneer Municipal High Income Trust Schedule of Investments | January 31, 2021 Ticker Symbol: MHI Schedule of Investments | 1/31/21 (unaudited) Principal Amount USD ($) Value UNAFFILIATED ISSUERS - 136.

February 18, 2021 EX-99.2

Limited Power of Attorney

EX-99.2 3 d137413dex992.htm EX-99.2 Exhibit 99.2 LIMITED POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Debra Cho, Patricia Arce and Stacy Otieno, acting alone, the undersigned’s true and lawful attorney-in-fact to: (1) complete and sign, for and on behalf of the undersigned, all reports and filings required by Sections 13 and 16 of the Se

February 18, 2021 EX-99.6

Amended and Restated VMTP Purchase Agreement, dated as of February 16, 2021

EX-99.6 Exhibit 99.6 Amended and Restated VMTP Purchase Agreement Pioneer Municipal High Income Trust and Wells Fargo Municipal Capital Strategies, LLC February 16, 2021 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 2 1.1 Incorporation of Certain Definitions by Reference 8 ARTICLE II PURCHASE AND TRANSFERS, COSTS AND EXPENSES; ADDITIONAL FEE 8 2.1 Purchase and Transfer of VMTP Shares 8 2.2 Operatin

February 18, 2021 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* PIONEER MUNICIPAL HIGH INCOME TRUST (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* PIONEER MUNICIPAL HIGH INCOME TRUST (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Christopher F. Nenno Senior Counsel Wells Fargo & Company 1700 Lincoln Street, 12th Floor D

February 18, 2021 EX-99.1

Joint Filing Agreement

EX-99.1 2 d137413dex991.htm EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT This Statement is filed by Wells Fargo & Company on its own behalf and on behalf of Wells Fargo Municipal Capital Strategies, LLC. Aggregate beneficial ownership reported by Wells Fargo & Company under Item 11 on page 2 is on a consolidated basis and includes any beneficial ownership separately reported herein by Wells Fargo M

February 18, 2021 EX-99.7

Amended and Restated Registration Rights Agreement, dated as of February 16, 2021”

EX-99.7 5 d137413dex997.htm EX-99.7 Exhibit 99.7 AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT THIS AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT (this “Agreement”), executed as of February 16, 2021, is made among (i) Pioneer Municipal High Income Trust, a closed-end fund organized as a Delaware statutory trust (the “Fund”) and (ii) Wells Fargo Municipal Capital Strategies, LLC, a wholly

November 25, 2020 EX-99.1(A)

PIONEER MUNICIPAL HIGH INCOME TRUST AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST

Amended and Restated Agreement and Declaration of Trust PIONEER MUNICIPAL HIGH INCOME TRUST AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST This AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST is made as of this 24th day of November, 2020 by the Trustees hereunder; WHEREAS, PIONEER MUNICIPAL HIGH INCOME TRUST was established pursuant to an Agreement and Declaration of Trust dated a

November 25, 2020 EX-99.1(B)

BY-LAWS PIONEER MUNICIPAL HIGH INCOME TRUST (As amended and restated as of November 24, 2020) ARTICLE I

Amended and Restated Bylaws BY-LAWS OF PIONEER MUNICIPAL HIGH INCOME TRUST (As amended and restated as of November 24, 2020) ARTICLE I DEFINITIONS All capitalized terms not defined herein have the respective meanings given them in the Agreement and Declaration of Trust of Pioneer Municipal High Income Trust dated March 13, 2003, as may be amended or restated from time to time (the “Declaration of Trust”).

November 25, 2020 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits - PIONEER MUNICIPAL HIGH INCOME TRUST

PIONEER MUNICIPAL HIGH INCOME TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 29, 2020 NPORT-EX

Level 1

Pioneer Municipal High Income Trust Schedule of Investments | July 31, 2020 Ticker Symbol: MHI Principal Amount USD ($) Value UNAFFILIATED ISSUERS - 140.

September 4, 2020 DEFA14A

- PIONEER CLOSED-END FUNDS

Pioneer Closed-End Funds UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 30, 2020 NPORT-EX

Level 1

Pioneer Municipal High Income Trust Schedule of Investments | January 31, 2020 Ticker Symbol: MHI Schedule of Investments | 1/31/20 (unaudited) Principal Amount USD ($) Value UNAFFILIATED ISSUERS - 140.

September 27, 2019 NPORT-EX

MHI / Pioneer Municipal Income Trust NPORT-EX - - SOI

Pioneer Municipal High Income Trust Schedule of Investments | July 31, 2019 Ticker Symbol: MHI Schedule of Investments | 7/31/19 (unaudited) Principal Amount USD ($) Value UNAFFILIATED ISSUERS - 142.

March 29, 2019 EX-99

CERTIFICATIONS

CERTIFICATIONS I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the pe

March 29, 2019 N-Q

MHI / Pioneer Municipal Income Trust NQ (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cull

September 28, 2018 N-Q

MHI / Pioneer Municipal Income Trust NQ (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cull

September 28, 2018 EX-99.CERT

CERTIFICATIONS

CERTIFICATIONS I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the pe

June 28, 2018 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Shareholders and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audits of the financial statements of Pioneer Municipal High Income Trust (the "Trust") as of and for the year ended April 30, 2018, in accordance with the standards of the Public Company Accounting Oversight Board (United States),

April 2, 2018 EX-99.CERT

CERTIFICATIONS

CERTIFICATIONS I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the pe

April 2, 2018 N-Q

MHI / Pioneer Municipal Income Trust NQ (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cull

February 28, 2018 SC 13G/A

MHI / Pioneer Municipal Income Trust / UBS Group AG - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Pioneer Municipal High Income Trust (MHI) (Name of Issuer) Auction Preferred Stock (Title of Class of Securities) 723763207 723763306 (CUSIP Number) February 28, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate

February 22, 2018 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 jfanew.htm EX-99.1 EXHIBIT 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or any rule or regul

February 22, 2018 SC 13G/A

MHI / Pioneer Municipal Income Trust / BANK OF AMERICA CORP /DE/ - NONE Passive Investment

SC 13G/A 1 doc1.htm NONE UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 03)* Pioneer Municipal High Income Trust (Name of Issuer) AUCTION RATE PREFERRED (Title of Class of Securities) 723763 (CUSIP Number) February 15, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

February 16, 2018 EX-99.2

EX-99.2

EX-99.2 3 attachment2.htm EX-99.2 DOCUMENT Exhibit 99.2 JOINT FILER INFORMATION Item Information Name: Wells Fargo Municipal Capital Strategies, LLC Address: 375 Park Avenue New York, New York 10152 Date of Event Requiring February 9, 2018 Statement (Month/Day/Year): Issuer Name and Ticker or Pioneer Municipal High Income Trust [MHI] Trading Symbol: Relationship of Reporting 10% Owner Person(s) to

February 16, 2018 EX-99.1

EX-99.1

Exhibit 99.1 JOINT FILING AGREEMENT Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the rules and regulations thereunder, each party hereto hereby agrees to the joint filing, on behalf of each of them, of any filing required by such party under Section 13 or Section 16 of the Exchange Act or any rule or regulation thereunder (including a

February 16, 2018 EX-99.4

REGISTRATION RIGHTS AGREEMENT

EX-99.4 Exhibit 99.4 REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), executed as of February 9, 2018, is made among (i) Pioneer Municipal High Income Trust, a closed-end fund organized as a Delaware statutory trust (the “Fund”), (ii) Wells Fargo Municipal Capital Strategies, LLC, a wholly-owned subsidiary of Wells Fargo Bank, National Association, organized and

February 16, 2018 EX-99.3

VOTING TRUST AGREEMENT

EX-99.3 Exhibit 99.3 VOTING TRUST AGREEMENT THIS VOTING TRUST AGREEMENT (this “Agreement”) is made and entered into effective for all purposes and in all respects as of February 9, 2018 by and among Lord Securities Corporation, as trustee (the “Trustee” or any successor thereto), Wells Fargo Municipal Capital Strategies, LLC, a wholly owned subsidiary of Wells Fargo Bank, National Association, org

February 16, 2018 EX-99.5

TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 1.1 Incorporation of Certain Definitions by Reference 8 ARTICLE II PURCHASE AND TRANSFERS, COSTS AND EXPENSES; ADDITIONAL FEE 8 2.1 Purchase and Transfer of VMTP Shares 8 2.2 Operating Expenses; Fees 9 2

EX-99.5 Exhibit 99.5 VMTP Purchase Agreement Pioneer Municipal High Income Trust and Wells Fargo Municipal Capital Strategies, LLC and WFC Holdings, LLC February 9, 2018 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 1.1 Incorporation of Certain Definitions by Reference 8 ARTICLE II PURCHASE AND TRANSFERS, COSTS AND EXPENSES; ADDITIONAL FEE 8 2.1 Purchase and Transfer of VMTP Shares 8 2.2 Operatin

February 16, 2018 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 Exhibit 99.1 JOINT FILING AGREEMENT This Statement is filed by Wells Fargo & Company on its own behalf and on behalf of Wells Fargo Municipal Capital Strategies, LLC and WFC Holdings, LLC. Aggregate beneficial ownership reported by Wells Fargo & Company under Item 11 on page 2 is on a consolidated basis and includes any beneficial ownership separately reported herein by Wells Fargo Municip

February 16, 2018 SC 13D

MHI / Pioneer Municipal Income Trust / WELLS FARGO & COMPANY/MN - SC 13D Activist Investment

SC 13D 1 d520772dsc13d.htm SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 PIONEER MUNICIPAL HIGH INCOME TRUST (Name of Issuer) VARIABLE RATE MUNIFUND TERM PREFERRED SHARES (Title of Class of Securities) 723763405 (CUSIP Number) Willie J. White Senior Counsel Wells Fargo & Company 301 South College Street, 22nd F

February 16, 2018 EX-99.2

LIMITED POWER OF ATTORNEY

EX-99.2 Exhibit 99.2 LIMITED POWER OF ATTORNEY Know all by these present, that the undersigned hereby constitutes and appoints each of Michael J. Choquette, Bruce A. Miller, Lori A. Ward and Karen E. Collins, acting alone, the undersigned’s true and lawful attorney-in-fact to: (1) complete and sign, for and on behalf of the undersigned, all reports and filings required by Section 13 of the Securit

February 14, 2018 SC 13G

MHI / Pioneer Municipal Income Trust / Karpus Management, Inc. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13 G Under the Securities Exchange Act of 1934 Pioneer Municipal High Income Trust (MHI) (Name of Issuer) Preferred (Title of Class of Securities) 723763207 723763306 (CUSIP Number) December 31, 2017 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to whi

December 29, 2017 EX-99.77Q1 OTHR EXHB

Deloitte & Touche

Deloitte & Touche llp 200 Berkeley Street Boston, MA 02116-5022 USA Tel: + 617 437 2000 www.

September 27, 2017 N-Q

Pioneer Municipal High Income Trust - MHI SCHEDULE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cull

September 27, 2017 EX-99

10:56 AM 9/27/2017 CERTIFICATIONS -------------- I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a materi

mhicert.htm 10:56 AM 9/27/2017 CERTIFICATIONS - I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not

June 27, 2017 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust: In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the "Trust"), as of and for the year ended April 30, 2017, in accordance with the standards of the Public Company Accounting Oversight Board (United States),

June 9, 2017 DEFA14A

Pioneer Diversified High Income Trust PIONEER FUNDS

PIONEER FUNDS SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

May 22, 2017 DEFA14A

Pioneer Municipal Income Trust PIONEER FUNDS

PIONEER FUNDS SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

April 26, 2017 DEFA14A

Pioneer Diversified High Income Trust PIONEER FUNDS

PIONEER FUNDS SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

April 3, 2017 EX-99

10:56 AM 4/3/2017 CERTIFICATIONS -------------- I, Lisa M. Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a materi

mhicert.htm 10:56 AM 4/3/2017 CERTIFICATIONS - I, Lisa M. Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, no

April 3, 2017 N-Q

Pioneer Municipal High Income Trust - MHI SCHEDULE

mhisoi.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terre

March 30, 2017 DEFA14A

Pioneer Diversified High Income Trust PIONEER FUNDS

PIONEER FUNDS SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

March 30, 2017 DEFA14A

Pioneer Diversified High Income Trust PIONEER FUNDS

PIONEER FUNDS SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

March 30, 2017 DEFA14A

Pioneer Diversified High Income Trust PIONEER FUNDS

PIONEER FUNDS SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement.

March 28, 2017 DEF 14A

Pioneer Diversified High Income Trust PIONEER CLOSED END FUNDS

PIONEER CLOSED END FUNDS Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 17, 2017 CORRESP

MORGAN, LEWIS & BOCKIUS LLP ONE FEDERAL STREET BOSTON, MASSACHUSETTS 02110

MORGAN, LEWIS & BOCKIUS LLP ONE FEDERAL STREET BOSTON, MASSACHUSETTS 02110 March 17, 2017 VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, NE Washington, D.

March 13, 2017 CORRESP

MORGAN, LEWIS & BOCKIUS LLP ONE FEDERAL STREET BOSTON, MASSACHUSETTS 02110 March 13, 2017

MORGAN, LEWIS & BOCKIUS LLP ONE FEDERAL STREET BOSTON, MASSACHUSETTS 02110 March 13, 2017 VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, NE Washington, D.

February 28, 2017 CORRESP

Morgan, Lewis & Bockius LLP One Federal Street Boston, MA 02110 February 28, 2017

SEC Cover Letter Morgan, Lewis & Bockius LLP One Federal Street Boston, MA 02110 February 28, 2017 VIA EDGAR Securities and Exchange Commission Division of Investment Management 100 F Street, NE Washington, D.

February 28, 2017 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

PIONEER FUNDS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definiti

September 28, 2016 N-Q

Pioneer Municipal Income Trust MHI SCHEDULE (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cull

September 28, 2016 EX-99

10:56 AM 9/28/2016 CERTIFICATIONS -------------- I, Lisa M. Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a mat

mhicert.htm 10:56 AM 9/28/2016 CERTIFICATIONS - I, Lisa M. Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, n

June 28, 2016 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

auditorsletter.htm REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust: In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the ?Trust?), as of and for the year ended April 30, 2016, in accordance with the standards of the Public Company Accounting Oversight Boar

March 30, 2016 N-Q

Pioneer Municipal High Income Trust MHI SCHEDULE (Quarterly Schedule of Portfolio Holdings)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-21321 Pioneer Municipal High Income Trust (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cull

March 30, 2016 EX-99

10:56 AM 3/30/2016 CERTIFICATIONS -------------- I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a materi

10:56 AM 3/30/2016 CERTIFICATIONS - I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading w

September 29, 2015 N-Q

Pioneer Municipal Income Trust MHI SCHEDULE (Quarterly Schedule of Portfolio Holdings)

OMB APPROVAL OMB Number: 3235-0578 Expires: January 31, 2016 Estimated average burden hours per response.

September 29, 2015 EX-99

10:56 AM 9/29/2015 CERTIFICATIONS -------------- I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a materi

10:56 AM 9/29/2015 CERTIFICATIONS - I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading w

June 26, 2015 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

auditorsletter.htm REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust: In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the ?Trust?), as of and for the year ended April 30, 2015, in accordance with the standards of the Public Company Accounting Oversight Boar

March 31, 2015 N-Q

Pioneer Municipal Income Trust MHI SCHEDULE (Quarterly Schedule of Portfolio Holdings)

OMB APPROVAL OMB Number: 3235-0578 Expires: January 31, 2016 Estimated average burden hours per response.

March 31, 2015 EX-99

10:56 AM 3/31/2015 CERTIFICATIONS -------------- I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material

mhicert.htm 10:56 AM 3/31/2015 CERTIFICATIONS - I, Lisa Jones, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not

December 29, 2014 EX-99.77K CHNG ACCNT

Attachment A

77(K). CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT LETTER The Board of Trustees of the Trust, with the approval and recommendation of the Audit Committee, appointed Deloitte & Touche LLP to serve as the Trust’s independent registered public accounting firm for the fiscal year ending April 30, 2015. Deloitte & Touche LLP replaces Ernst & Young LLP, which resigned as the Trust’s independent registe

December 2, 2014 SC 13G/A

MHI / Pioneer Municipal Income Trust / UBS Group AG - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) * Pioneer Municipal High Income Trust (Name of Issuer) Auction Preferred Stock (Title of Class of Securities) 723763207 723763306 (CUSIP Number) November 28, 2014** (Date of Event which Requires Filing of this Statement) Check the appropriate box

September 29, 2014 N-Q

Pioneer Municipal High Income Trust - MHI SCHEDULE

OMB APPROVAL OMB Number: 3235-0578 Expires: January 31, 2016 Estimated average burden hours per response.

September 29, 2014 EX-99

10:56 AM 9/29/2014 CERTIFICATIONS -------------- I, Mark Goodwin, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a mate

10:56 AM 9/29/2014 CERTIFICATIONS - I, Mark Goodwin, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading

June 27, 2014 EX-99.77K CHNG ACCNT

Attachment A

Change in Independent Registered Public Accounting Firm The Board of Trustees of the Trust, with the approval and recommendation of the Audit Committee, appointed Deloitte & Touche LLP to serve as the Trust's independent registered public accounting firm for the fiscal year ending April 30, 2015.

June 27, 2014 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Shareowners and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the Company) as of and for the year ended April 30, 2014 in accordance with the standards of the Public Company Accounting Oversight Board (United States), we

March 28, 2014 N-Q

Quarterly Schedule of Portfolio Holdings - MHI SCHEDULE

OMB APPROVAL OMB Number: 3235-0578 Expires: January 31, 2016 Estimated average burden hours per response.

March 28, 2014 EX-99

10:56 AM 2/26/2014CERTIFICATIONS -------------- I, Daniel K Kingsbury, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a

10:56 AM 2/26/2014CERTIFICATIONS - I, Daniel K Kingsbury, certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misle

September 25, 2013 EX-99

CERTIFICATIONS -------------- I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or

CERTIFICATIONS - I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

September 25, 2013 N-Q

Quarterly Schedule of Portfolio Holdings - MHI SCHEDULE

OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2013 Estimated average burden hours per response.

June 28, 2013 EX-99.77C VOTES

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Shareowners and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the Company) as of and for the year ended April 30, 2013 in accordance with the standards of the Public Company Accounting Oversight Board (United States), we

April 1, 2013 EX-99

CERTIFICATIONS -------------- I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or

CERTIFICATIONS - I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

April 1, 2013 N-Q

Quarterly Schedule of Portfolio Holdings - MHI NQ SOI

OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2013 Estimated average burden hours per response.

September 28, 2012 EX-99

CERTIFICATIONS -------------- I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or

CERTIFICATIONS - I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

September 28, 2012 N-Q

Quarterly Schedule of Portfolio Holdings - MHI NQ SOI

OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2013 Estimated average burden hours per response.

June 29, 2012 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Shareowners and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the Company) as of and for the year ended April 30, 2012 in accordance with the standards of the Public Company Accounting Oversight Board (United States), we

March 30, 2012 N-Q

Quarterly Schedule of Portfolio Holdings - MHI NQ SOI

OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2013 Estimated average burden hours per response.

March 30, 2012 EX-99

CERTIFICATIONS -------------- I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or

CERTIFICATIONS - I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

September 29, 2011 EX-99

EX-99

CERTIFICATIONS - I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

September 29, 2011 N-Q

Level 1

OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2013 Estimated average burden hours per response.

June 29, 2011 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Shareowners and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the Company) as of and for the year ended April 30, 2011 in accordance with the standards of the Public

April 1, 2011 N-Q

Level 1

OMB APPROVAL OMB Number: 3235-0578 Expires: April 30, 2013 Estimated average burden hours per response.

April 1, 2011 EX-99

EX-99

CERTIFICATIONS - I, John F. Cogan, Jr., certify that: 1. I have reviewed this report on Form N-Q of Pioneer Municipal High Income Trust: 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect

February 14, 2011 EX-99.1

Joint Filing Agreement

Exhibit 99.1 EXHIBIT 99.1 Joint Filing Agreement The undersigned hereby agree that they are filing this statement jointly pursuant to Rule 13d-1(k)(1). Each of them is responsible for the timely filing of such Schedule 13G and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completene

February 14, 2011 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) Pioneer Municipal High Income Trust (Name of Issuer) AUCTION RATE PREFERRED (Title of Class of Securities

Schedule 13G Amendment No. 2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) Pioneer Municipal High Income Trust (Name of Issuer) AUCTION RATE PREFERRED (Title of Class of Securities) 723763 (CUSIP Number) December 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate b

January 14, 2011 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Pioneer Municipal High Income Trust (Name of Issuer) Auction Preferred Stock (Title of Class of Securiti

sc13gza UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Pioneer Municipal High Income Trust (Name of Issuer) Auction Preferred Stock (Title of Class of Securities) 723763207 723763306 (CUSIP Number(s)) December 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

June 29, 2010 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Shareowners and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the Company) as of and for the year ended April 30, 2010 in accordance with the standards of the Public

June 29, 2009 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust (the Company) as of and for the year ended April 30, 2009, in accordance with the standards of the Publi

February 10, 2009 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Pioneer Municipal High Income Trust (Name of Issuer) Auction Preferred Stock (Title of Class of Securitie

SC 13G OMB APPROVAL OMB Number: 3235-0145 Expires: February 28, 2009 Estimated average burden hours per response.

June 27, 2008 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust as of and for the year ended April 30, 2008, in accordance with the standards of the Public Company Acco

June 28, 2007 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust as of and for the year ended April 30, 2007, in accordance with the standards of the Public Company Acco

June 27, 2006 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust as of and for the year ended April 30, 2006, in accordance with the standards of the Public Company Accounting Oversight Board (United States), we considered it

June 27, 2005 EX-99.77B ACCT LTTR

Report of Independent Registered Public Accounting Firm

Report of Independent Registered Public Accounting Firm Report of Independent Registered Public Accounting Firm To the Shareowners and Board of Trustees of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust for the year ended April 30, 2005, we considered its internal control, including control activities for safeguarding securities, in order to determine our auditing procedures for the purpose of expressing our opinion on the financial statements and to comply with the requirements of Form N-SAR, not to provide assurance on internal control.

June 28, 2004 EX-99.77B ACCT LTTR

Report of Ernst & Young LLP, Independent Auditors

Report of Ernst & Young LLP, Independent Auditors Report of Ernst & Young LLP, Independent Auditors To the Board of Trustees and Shareowners of Pioneer Municipal High Income Trust In planning and performing our audit of the financial statements of Pioneer Municipal High Income Trust for the period from July 21, 2003 (commencement of operations) to April 30, 2004, we considered its internal control, including control activities for safeguarding securities, in order to determine our auditing procedures for the purpose of expressing our opinion on the financial statements and to comply with the requirements of Form N-SAR, not to provide assurance on internal control.

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