SEC Form N-CSR filed by Pioneer Municipal High Income Advantage Fund Inc.

ITEM 2. CODE OF ETHICS.

(a) Disclose whether, as of the end of the period covered by the report, the registrant has adopted a code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. If the registrant has not adopted such a code of ethics, explain why it has not done so.

The registrant has adopted, as of the end of the period covered by this report, a code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer and controller.

(b) For purposes of this Item, the term “code of ethics” means written standards that are reasonably designed to deter wrongdoing and to promote:

(1) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships;

(2) Full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files with, or submits to, the Commission and in other public communications made by the registrant;

(3) Compliance with applicable governmental laws, rules, and regulations;

(4) The prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and

(5) Accountability for adherence to the code.

(c) The registrant must briefly describe the nature of any amendment, during the period covered by the report, to a provision of its code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item. The registrant must file a copy of any such amendment as an exhibit pursuant to Item 19(a), unless the registrant has elected to satisfy paragraph (f) of this Item by posting its code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by undertaking to provide its code of ethics to any person without charge, upon request, pursuant to paragraph (f)(3) of this Item.

The registrant has made no amendments to the code of ethics during the period covered by this report.

(d) If the registrant has, during the period covered by the report, granted a waiver, including an implicit waiver, from a provision of the code of ethics to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, that relates to one or more of the items set forth in paragraph (b) of this Item, the registrant must briefly describe the nature of the waiver, the name of the person to whom the waiver was granted, and the date of the waiver.

Not applicable.

(e) If the registrant intends to satisfy the disclosure requirement under paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from, a provision of its code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item by posting such information on its Internet website, disclose the registrant’s Internet address and such intention.

Not applicable.

(f) The registrant must:

(1) File with the Commission, pursuant to Item 19(a)(1), a copy of its code of ethics that applies to the registrant’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, as an exhibit to its annual report on this Form N-CSR (see attachment);

(2) Post the text of such code of ethics on its Internet website and disclose, in its most recent report on this Form N-CSR, its Internet address and the fact that it has posted such code of ethics on its Internet website; or

(3) Undertake in its most recent report on this Form N-CSR to provide to any person without charge, upon request, a copy of such code of ethics and explain the manner in which such request may be made. See Item 19(2)

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

(a) (1) Disclose that the registrant’s Board of Directors has determined that the registrant either:

(i) Has at least one audit committee financial expert serving on its audit committee; or

(ii) Does not have an audit committee financial expert serving on its audit committee.

The registrant’s Board of Directors has determined that the registrant has at least one audit committee financial expert.

(2) If the registrant provides the disclosure required by paragraph (a)(1)(i) of this Item, it must disclose the name of the audit committee financial expert and whether that person is “independent.” In order to be considered “independent” for purposes of this Item, a member of an audit committee may not, other than in his or her capacity as a member of the audit committee, the Board of Directors, or any other board committee:

(i) Accept directly or indirectly any consulting, advisory, or other compensatory fee from the issuer; or

(ii) Be an “interested person” of the investment company as defined in Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)).

Mr. Fred J. Ricciardi, an independent Director, is such an audit committee financial expert.

(3) If the registrant provides the disclosure required by paragraph (a)(1) (ii) of this Item, it must explain why it does not have an audit committee financial expert.

Not applicable.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

(a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant’s annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years.

The audit fees for the Fund were $48,300 payable to Deloitte & Touche LLP for the year ended March 31, 2025 and $47,300 for the year ended March 31, 2024.

(b) Disclose, under the caption AUDIT-RELATED FEES, the aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant’s financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category.

N/A

(c) Disclose, under the caption TAX FEES, the aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category.

The Fund paid aggregate non-audit fees to Deloitte & Touche LLP for tax services of $9,000 and $10,500 during the fiscal years ended March 31, 2025 and 2024, respectively.

(d) Disclose, under the caption ALL OTHER FEES, the aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category.

There were no other fees in 2025 or 2024.

(e) (1) Disclose the audit committee’s pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X.

PIONEER FUNDS

APPROVAL OF AUDIT, AUDIT-RELATED, TAX AND OTHER SERVICES

PROVIDED BY THE INDEPENDENT AUDITOR

SECTION I - POLICY PURPOSE AND APPLICABILITY

The Pioneer Funds recognize the importance of maintaining the independence of their outside auditors. Maintaining independence is a shared responsibility involving Amundi Asset Management US, Inc., the audit committee and the independent auditors.

The Funds recognize that a Fund’s independent auditors: 1) possess knowledge of the Funds, 2) are able to incorporate certain services into the scope of the audit, thereby avoiding redundant work, cost and disruption of Fund personnel and processes, and 3) have expertise that has value to the Funds. As a result, there are situations where it is desirable to use the Fund’s independent auditors for services in addition to the annual audit and where the potential for conflicts of interests are minimal. Consequently, this policy, which is intended to comply with Rule 210.2-01(C)(7), sets forth guidelines and procedures to be followed by the Funds when retaining the independent audit firm to perform audit, audit-related tax and other services under those circumstances, while also maintaining independence.

Approval of a service in accordance with this policy for a Fund shall also constitute approval for any other Fund whose pre-approval is required pursuant to Rule 210.2-01(c)(7)(ii).

In addition to the procedures set forth in this policy, any non-audit services that may be provided consistently with Rule 210.2-01 may be approved by the Audit Committee itself and any pre-approval that may be waived in accordance with Rule 210.2-01(c)(7)(i)(C) is hereby waived.

Selection of a Fund’s independent auditors and their compensation shall be determined by the Audit Committee and shall not be subject to this policy.

SECTION II - POLICY

SECTION III - POLICY DETAIL, CONTINUED

SECTION III - POLICY DETAIL, CONTINUED

SECTION III - POLICY DETAIL, CONTINUED

GENERAL AUDIT COMMITTEE APPROVAL POLICY:

(2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

Non-Audit Services

Beginning with non-audit service contracts entered into on or after May 6, 2003, the effective date of the new SEC pre-approval rules, the Fund’s audit committee is required to pre-approve services to affiliates defined by SEC rules to the extent that the services are determined to have a direct impact on the operations or financial reporting of the Fund. For the years ended March 31, 2025 and 2024, there were no services provided to an affiliate that required the Fund’s audit committee pre-approval.

(f) If greater than 50 percent, disclose the percentage of hours expended on the principal accountants engagement to audit the registrant’s financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant’s full-time, permanent employees.

N/A

(g) Disclose the aggregate non-audit fees billed by the registrants accountant for services rendered to the registrant, and rendered to the registrants investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant.

The Fund paid aggregate non-audit fees to Deloitte & Touche LLP for tax services of $9,000 and $10,500 during the fiscal years ended March 31, 2025 and 2024, respectively.

(h) Disclose whether the registrants audit committee of the Board of Directors has considered whether the provision of non-audit services that were rendered to the registrants investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant’s independence.

The Fund’s audit committee of the Board of Directors has considered whether the provision of non-audit services that were rendered to the Affiliates (as defined) that were not pre- approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant’s independence.

(i) A registrant identified by the Commission pursuant to Section 104(i)(2)(A) of the Sarbanes-Oxley Act of 2002 (15 U.S.C. 7214(i)(2)(A)), as having retained, for the preparation of the audit report on its financial statements included in the Form NCSR, a registered public accounting firm that has a branch or office that is located in a foreign jurisdiction and that the Public Company Accounting Oversight Board has determined it is unable to inspect or investigate completely because of a position taken by an authority in the foreign jurisdiction must electronically submit to the Commission on a supplemental basis documentation that establishes that the registrant is not owned or controlled by a governmental entity in the foreign jurisdiction. The registrant must submit this documentation on or before the due date for this form. A registrant that is owned or controlled by a foreign governmental entity is not required to submit such documentation.

N/A

(j) A registrant that is a foreign issuer, as defined in 17 CFR 240.3b-4, identified by the Commission pursuant to Section 104(i)(2)(A) of the Sarbanes-Oxley Act of 2002 (15 U.S.C. 7214(i)(2)(A)), as having retained, for the preparation of the audit report on its financial statements included in the Form N-CSR, a registered public accounting firm that has a branch or office that is located in a foreign jurisdiction and that the Public Company Accounting Oversight Board has determined it is unable to inspect or investigate completely because of a position taken by an authority in the foreign jurisdiction, for each year in which the registrant is so identified, must provide the below disclosures. Also, any such identified foreign issuer that uses a variable-interest entity or any similar structure that results in additional foreign entities being consolidated in the financial statements of the registrant is required to provide the below disclosures for itself and its consolidated foreign operating entity or entities. A registrant must disclose:

(1) That, for the immediately preceding annual financial statement period, a registered public accounting firm that the PCAOB was unable to inspect or investigate completely, because of a position taken by an authority in the foreign jurisdiction, issued an audit report for the registrant;

N/A

(2) The percentage of shares of the registrant owned by governmental entities in the foreign jurisdiction in which the registrant is incorporated or otherwise organized;

N/A

(3) Whether governmental entities in the applicable foreign jurisdiction with respect to that registered public accounting firm have a controlling financial interest with respect to the registrant;

N/A

(4) The name of each official of the Chinese Communist Party who is a member of the board of directors of the registrant or the operating entity with respect to the registrant;

N/A

(5) Whether the articles of incorporation of the registrant (or equivalent organizing document) contains any charter of the Chinese Communist Party, including the text of any such charter.

N/A

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS

(a) If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act (17 CFR 240.10A-3), state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)). If the registrant has such a committee, however designated, identify each committee member. If the entire Board of Directors is acting as the registrant’s audit committee as specified in Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)), so state.

N/A

(b) If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption from the listing standards for audit committees.

N/A

ITEM 6. SCHEDULE OF INVESTMENTS.

File Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.1212 of Regulation S-X [17 CFR 210.12-12], unless the schedule is included as part of the report to shareholders filed under Item 1 of this Form.

Included in Item 7

ITEM 7. FINANCIAL STATEMENTS AND FINANCIAL HIGHLIGHTS FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES

Included in Item 1

ITEM 8. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

N/A

ITEM 9. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES. (Unaudited)

N/A

Item 10. REMUNERATION PAID TO DIRECTORS, OFFICERS, AND OTHERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. (Unaudited)

Each Board Member also serves as a Board Member of other Funds in the Pioneer Family of Funds complex. Annual retainer fees and attendance fees are allocated to each Fund based on net assets. Directors’ fees paid by the Fund are within Item 1. Statement of Operations as Directors’ fees and expenses.

Item 11. STATEMENT REGARDING BASIS FOR APPROVAL OF INVESMENT ADVISORY CONTRACT. (Unaudited)

Approval of New Investment Advisory

Agreement and Interim Investment Advisory

Agreement with Victory Capital

Management Inc.

Effective April 1, 2025, Amundi Asset Management US, Inc. (“Amundi US”), the Fund’s previous investment adviser, has been contributed to Victory Capital Holdings, Inc. (“Victory Capital Holdings”), the parent company of Victory Capital Management Inc. (“Victory Capital”) (the “Transaction”). As a result of the Transaction, the Fund’s investment advisory agreement with Amundi US (the “Amundi US Investment Advisory Agreement”) terminated automatically on April 1, 2025. In connection with the Transaction, the Fund’s Board of Directors (the “Board” or the “Directors”) approved a new investment advisory agreement with Victory Capital (the “New Investment Advisory Agreement”) at a Board meeting held on December 16, 2024, subject to approval by the Fund’s stockholders. As of May 1, 2025, the Fund’s stockholders had not approved the New Investment Advisory Agreement. At the December 16, 2024 Board meeting, the Board also approved an interim investment advisory agreement with Victory Capital (the “Interim Investment Advisory Agreement”) to take effect upon the closing of the Transaction in the event that additional time was needed to solicit stockholder approval of the New Investment Advisory Agreement. The Board’s considerations in approving the New Investment Advisory Agreement and the Interim Investment Advisory Agreement are discussed below.

Board Evaluation of the New Investment Advisory Agreement and Interim Investment Advisory Agreement

The Board evaluated the Transaction and the New Investment Advisory Agreement and Interim Investment Advisory Agreement for the Fund. At in-person meetings held on May 14-15, 2024, July 22-23, 2024, September 16-17, 2024, November 12-13, 2024, and December 16, 2024, the Board met to consider the Transaction, including the plan to contribute Amundi US to Victory Capital Holdings in exchange for Amundi Asset Management S.A.S. (“Amundi”) becoming a significant shareholder of Victory Capital Holdings, and to establish a long-term reciprocal distribution partnership between Amundi and Victory Capital. The Board was advised that the Transaction, if completed, would constitute a change of control under the 1940 Act that would result in the termination of the Amundi US Investment Advisory Agreement.

At these meetings, which included meetings of the full Board and separate meetings of the Independent Directors, and at video conferences of the Independent Directors held on May 23, 2024, June 24, 2024, August 19, 2024, October 29, 2024 and December 9, 2024, the Board or the Independent Directors, as the case may be, considered, among other things, whether it would be in the best interests of the Fund and its stockholders to approve the New Investment Advisory Agreement. To assist the Board in its consideration of the New Investment Advisory Agreement and the anticipated impacts of the Transaction on the Fund and its stockholders, Victory Capital provided materials and information about Victory Capital, including its financial condition and asset management capabilities and organization, and Victory Capital and Amundi provided materials and information about the proposed Transaction between Victory Capital and Amundi.

To assist the Board in its consideration of the New Investment Advisory Agreement, Victory Capital provided extensive information to the Board regarding the Transaction and the investment advisory services to be provided by Victory Capital under the New Investment Advisory Agreement. Before and during the December 16, 2024 meeting, the Board sought additional information as it deemed necessary and appropriate. In connection with their consideration of the New Investment Advisory Agreement, the Independent Directors worked with their independent legal counsel to prepare requests for additional information that were submitted to Victory Capital and Amundi US. The Board’s requests for information

sought information relevant to the Board’s consideration of the New Investment Advisory Agreement and other anticipated impacts of the Transaction on the Fund and its stockholders. In addition, the Board formed a Transaction Sub-Committee, comprised solely of Independent Directors, to assist the Board in its consideration of the New Investment Advisory Agreement and the Transaction. The Board and the Transaction Sub- Committee met with senior management representatives of Victory Capital and Amundi US on numerous occasions to discuss various aspects of the Transaction, to review information provided to assist the Board in its consideration of the New Investment Advisory Agreement and the Transaction, and to make supplemental due diligence requests for additional information from Victory Capital and Amundi US with respect to the New Investment Advisory Agreement and the Transaction. Victory Capital and Amundi US provided documents and information in response to the requests from the Board and the Transaction Sub-Committee, as well as made presentations to, and responded to questions from, the Board and the Transaction Sub-Committee at various meetings. Prior to voting on the New Investment Advisory Agreement, the Independent Directors reviewed the Transaction and the New Investment Advisory Agreement with representatives of Amundi US and Victory Capital, counsel to the Fund and counsel to the Independent Directors. The Independent Directors also reviewed the Transaction and the New Investment Advisory Agreement with their counsel in private sessions at which no representatives of Amundi US, Victory Capital or counsel to the Fund were present.

The Board’s evaluation of the New Investment Advisory Agreement reflected the information provided specifically in connection with its review of the New Investment Advisory Agreement, as well as, where relevant, information that was previously furnished to the Board in connection with the renewal of the Amundi US Investment Advisory Agreement at inperson meetings held on September 17, 2024 and at other Board meetings throughout the prior year.

Among other things, the Directors considered:

(i) that, in the Transaction, Amundi US would be contributed to Victory Capital in exchange for shares of Victory Capital Holdings issued to Amundi without Amundi becoming a controlling stockholder of Victory Capital Holdings, and that Victory Capital and Amundi would establish a longterm reciprocal distribution partnership;

(ii) representations by Victory Capital regarding the reputation, experience, financial strength and resources of Victory Capital and its investment franchises;

(iii) that Victory Capital has informed the Board that the Transaction was not expected to have a material adverse impact on the nature, scope and overall quality of services provided to the Fund and its stockholders, including investment management, risk management, administrative, compliance, legal and other services;

(iv) that Victory Capital informed the Board that the portfolio managers of the Fund were expected to continue to act as portfolio managers of the Fund following the consummation of the Transaction as members of Pioneer Investments, a planned Victory Capital investment franchise, managing the Fund using the same investment approach under which the Fund was previously managed, and the Board considered the historical investment performance record of the Fund under such investment approach;

(v) the non-investment resources, infrastructure and personnel of Victory Capital that would be involved in Victory Capital’s services to the Fund, including Victory Capital’s legal and operational structure, risk management, administrative, legal, compliance and cybersecurity functions;

(vi) that the Fund’s contractual advisory fee rate would remain the same and would not increase by virtue of the New Investment Advisory Agreement;

(vii) the terms and conditions of the New Investment Advisory Agreement, including that the New Investment Advisory Agreement was substantially identical to the Amundi US Investment Advisory Agreement;

(viii) the terms of the Interim Investment Advisory Agreement (including fees) also are substantially the same as the terms of the Amundi US Investment Advisory Agreement, that the Interim Investment Agreement allows Victory Capital to manage each Fund for up to 150 days following the closing of the Transaction, and that investment advisory fees payable under the Interim Investment Advisory Agreement will be held in escrow during the term of the Interim Investment Advisory Agreement;

(ix) that the Directors had recently approved the continuance of the Amundi US Investment Advisory Agreement with Amundi US at an inperson meeting held on September 17, 2024 and, in connection with the Directors’ review of the Amundi US Investment Advisory Agreement, received and considered full comparative fee and expense data;

(x) Victory Capital’s plans to propose to transition from certain of the Fund’s current service providers, including fund administration, to the Victory Funds’ service providers following the consummation of the Transaction

(xi) that Victory Capital had agreed with the Board that, for at least three years after the Transaction closes, Victory Capital would waive fees and/or reimburse expenses so that the Fund’s total net annual operating expenses (excluding certain customary items) does not exceed the lower of (i) the total net annual operating expenses associated with investing in the Fund after application of expense limitation arrangements currently in effect for the Fund, if any, or (ii) the total net annual operating expenses of the Fund as of the end of the Fund’s most recent fiscal year at the time of the Transaction close, and that the contractual expense limitation agreement permits Victory Capital to recoup advisory fees waived and expenses reimbursed for up to two years after the fiscal year in which the waiver or reimbursement took place, subject to the lesser of any operating expense limitation in effect at the time of: (1) the original waiver or expense reimbursement; or (2) recoupment, after giving effect to the recoupment amount;

(xii) that Victory Capital did not expect to propose any changes to the investment objective(s) of the Fund or any changes to the principal investment strategies of the Fund as a result of the Transaction;

(xiii) that Victory Capital had acquired and integrated several investment management companies;

(xiv) the potential benefits to the stockholders of the Fund, including continuity of portfolio management and operating efficiencies due to the greater scale of Victory Capital that may be achieved from the Transaction;

(xv) that Victory Capital and Amundi would each derive benefits from the Transaction and that, as a result, they had a financial interest in the matters that were being considered;

(xvi) that Victory Capital and Amundi had agreed to conduct, and use reasonable best efforts to cause their affiliates to conduct, their respective businesses in compliance with Section 15(f) of the 1940 Act so as not to impose an “unfair burden” on the Fund; and

(xvii) that the Fund would not bear the costs of obtaining stockholder approval of the New Investment Advisory Agreement, including proxy solicitation costs, legal fees and the costs of printing and mailing the proxy statement, regardless of whether the Transaction is consummated. Certain of these considerations are discussed in more detail below.

The Directors also requested, obtained and considered the following information in connection with their evaluation of the Transaction and the New Investment Advisory Agreement for the Fund: (i) memoranda provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Directors in their deliberations regarding the New Investment Advisory Agreement; and (ii) the Fund’s advisory fees and total expense ratios, the financial statements of Victory Capital, a profitability analysis provided by Victory Capital, and an analysis from Victory Capital as to possible economies of scale. The Directors further considered, materials provided in connection with their review of the Amundi US Investment Advisory Agreement, including, for the Fund, information regarding the qualifications of the investment management teams for the Fund, as well as the level of investment by the Fund’s portfolio managers in the Fund. In addition, the Directors

considered the information provided at regularly scheduled meetings throughout the year regarding the Fund’s performance and risk attributes, including through meetings with investment management personnel, and took into account other information related to the Fund provided to the Directors at regularly scheduled meetings.

At the December 16, 2024, meeting, based on their evaluation of the information provided by Victory Capital and Amundi US, the Directors including the Independent Directors voting separately, approved the New Investment Advisory Agreement and the Interim Investment Advisory Agreement for the Fund. In considering the New Investment Advisory Agreement for the Fund, the Directors considered various factors that they determined were relevant, including the factors described below. The Directors did not identify any single factor as the controlling factor in their determinations. The Directors considered the same factors with respect to the Interim Investment Advisory Agreement for the Fund.

Nature, Extent and Quality of Services

The Directors considered the nature, extent and quality of the services that had been provided by Amundi US to the Fund and that were expected to be provided by Victory Capital to the Fund following the consummation of the Transaction, taking into account the investment objective(s) and principal investment strategies of the Fund.

The Board considered information provided by Victory Capital regarding its business and operating structure, scale of operations, leadership and reputation. The Board also considered the capabilities, resources, and personnel of Victory Capital, in order to determine whether Victory Capital was capable of providing the same level of investment management services provided to the Fund by Amundi US. The Board received information regarding Victory Capital’s plans to integrate Amundi US investment personnel into Victory Capital as members of Pioneer Investments, a Victory Capital investment franchise. The Board noted that it had considered the qualifications of the portfolio managers at Amundi US at its September 17, 2024 Meeting.

The Directors considered Victory Capital’s representation that there would be no change to the investment approach under which the Fund would be managed under the New Investment Advisory Agreement. The Board considered the non-investment resources, infrastructure and personnel of Victory Capital that would be involved in Victory Capital’s services to the Fund, including Victory Capital’s compliance, risk management, cybersecurity and legal resources and personnel. The Board also reviewed information provided by Victory Capital related to its business, legal, and regulatory affairs, including information regarding the resources available to Victory Capital to provide the services specified under the New Investment Advisory Agreement. The Board also considered Victory Capital’s financial condition, and noted that Victory Capital was expected to be able to provide a high level of service to the Fund and continuously invest and re-invest in its investment management business. The Directors considered that Amundi US previously supervised and monitored the performance of the Fund’s service providers and provided the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund’s business management and operations, and considered the personnel and resources that Victory Capital proposed to provide with respect to such services. The Directors also considered that, as administrator, Amundi US was responsible for the administration of the Fund’s business and other affairs and that, post-Transaction, Victory Capital would be responsible for the administration of the Fund’s business and other affairs. The Directors considered that the fees Victory Capital would charge for administration services are higher than the fees that Amundi US received as reimbursement for services rendered, and considered Victory Capital’s explanation of the reasons for the differences in administration fees charged by Victory Capital and Amundi US as well as the expense limitation arrangements proposed to be implemented for the

Fund for at least three years following the completion of the Transaction. The Directors considered that the terms and conditions of the New Investment Advisory Agreement were substantially similar to the terms and conditions of the Amundi US Investment Advisory Agreement, except

for different execution dates, effective dates and termination dates. The Directors considered that the terms of the Interim Investment Advisory Agreement (including fees) also are substantially the same as the terms of the Amundi US Investment Advisory Agreement, that the Interim Investment Agreement allows Victory Capital to manage each Fund for up to 150 days following the closing of the Transaction, and that investment advisory fees payable under the Interim Investment Advisory Agreement will be held in escrow during the term of the Interim Investment Advisory Agreement.

The Directors received and considered information regarding the Victory Funds’ key service providers, including custody, transfer agency and administration service providers, the fees charged by such service providers as compared to the fees charged by the Fund’s current service providers, and Victory Capital’s plans to propose the transition from certain of the Fund’s current service providers to the Victory Funds’ service providers following the consummation of the Transaction.

The Directors considered that Victory Capital had advised the Board that, notwithstanding the above, the Transaction was not expected to have a material adverse impact on the nature, scope and overall quality of services provided to the Fund and its stockholders, including investment advisory, risk management, administrative, compliance, legal and other services, as a result of the Transaction. In that regard, the Directors considered the statements by representatives of Victory Capital that they did not foresee major changes in the day-to-day investment management operations of the Fund as a direct result of the Transaction, and also considered the risk management, legal and compliance services that Victory Capital would provide with respect to the Fund.

Based on these considerations, the Directors concluded that the nature, extent and quality of services that are proposed to be provided by Victory Capital to the Fund would be satisfactory and consistent with the terms of the Investment Advisory Agreement.

Performance of the Fund

In considering the Fund’s performance, the Directors regularly reviewed and discussed throughout the year data prepared by Amundi US and information comparing the Fund’s performance with the performance of its peer group of funds, as classified by Morningstar, Inc. (Morningstar), and with the performance of the Fund’s benchmark index. The Directors also regularly considered the Fund’s returns at market value relative to its peers, as well as the discount at which the Fund’s shares may trade on the New York Stock Exchange compared to its net asset value per share. They also discussed the Fund’s performance with Amundi US on a regular basis. The Directors’ regular reviews and discussions factored into the Directors’ deliberations concerning the approval of the New Investment Advisory Agreement.

In addition, the Board considered that the Fund’s portfolio managers were expected to continue to act as portfolio managers of the Fund following the consummation of the Transaction as members of Pioneer Investments, a Victory Capital investment franchise. The Board also considered that no changes were proposed to the Fund’s investment objective(s) or principal investment strategies in connection with the Transaction and the New Investment Advisory Agreement.

Advisory Fee and Expenses

The Directors noted that the advisory fee rate payable by the Fund was identical under the Amundi US Investment Advisory Agreement and the New Investment Advisory Agreement. The Directors considered information received in connection with the Directors’ consideration of the renewal of the Amundi US Investment Advisory Agreement at in-person meetings held on September 17, 2024 showing the fees and expenses of the Fund in comparison to the advisory fees and expense ratios of a peer group of funds selected on the basis of criteria determined by the Independent Directors for this purpose using data provided by Strategic Insight Mutual Fund Research and Consulting, LLC (Strategic Insight), an independent third party. The peer group comparisons referred to below are organized in quintiles. Each quintile represents one-fifth of the peer group. In all peer group comparisons referred to below, first quintile is most favorable to the Fund’s shareowners.

The Directors considered that the Fund’s advisory fee (based on managed assets) for the Fund’s fiscal year ended March 31, 2024 was in the first quintile relative to the advisory fees paid by other funds in its Strategic Insight peer group for the comparable period. The Directors considered that the expense ratio (based on managed assets) of the Fund’s common stock for the most recent fiscal year (both including and excluding investment-related expenses) was in the first quintile relative to its Strategic Insight peer group for the comparable period.

The Directors also considered Victory Capital’s contractual commitment under the expense limitation agreement to waive fees and/or reimburse expenses for at least three years after the closing of the Transaction, so that the Fund’s total net annual operating expenses (excluding certain customary items) does not exceed the lower of (i) the total net annual operating expenses associated with investing in the Fund after application of expense limitation arrangements currently in effect for the Fund, if any, or (ii) the total net annual operating expenses of the Fund as of the end of the Fund’s most recent fiscal year, at the time the Transaction closes. The Directors considered that the expense limitation agreement permits Victory Capital to recoup advisory fees waived and expenses reimbursed for up to two years after the fiscal year in which the waiver or reimbursement took place, subject to the lesser of any operating expense limitation in effect at the time of: (1) the original waiver or expense reimbursement; or (2) recoupment, after giving effect to the recoupment amount.

The Directors also considered that Victory Capital does not manage closedend funds except for the Pioneer closed-end funds.

The Directors concluded that the advisory fee payable by the Fund to Victory Capital under the New Investment Advisory Agreement was reasonable in relation to the nature and quality of the services to be provided by Victory Capital.

Profitability

The Directors considered information provided by Victory Capital regarding the estimated profitability of Victory Capital with respect to the advisory ervices proposed to be provided by Victory Capital to the Fund, including the methodology used by Victory Capital in allocating certain of its costs to the management of the Fund. The Directors also considered Victory Capital’s profit margins in connection with the overall operation of the Fund. The Board considered the investments Victory Capital expected to make to support and grow the Pioneer funds brand and the costs to integrate the Amundi US/Pioneer Funds business into Victory Capital. The Board also considered information regarding Victory Capital’s profit margins with respect to the funds it currently manages. The Board considered Victory Capital’s representation that the fully integrated Amundi US/Pioneer Funds business, including investments to support ongoing growth, was expected to have a positive impact on Victory Capital’s overall financial profitability. The Directors considered Victory Capital’s profit margins in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Directors concluded that Victory Capital’s estimated profitability with respect to the management of the Fund was not unreasonable.

Economies of Scale

The Directors considered the extent to which Victory Capital may realize economies of scale or other efficiencies in managing and supporting the Fund. Since the Fund is a closed-end fund that has not raised additional capital, the Directors concluded that economies of scale were not a relevant consideration in the renewal of the investment advisory agreement.

Other Benefits

The Directors considered the other benefits that Victory Capital may enjoy from its relationship with the Fund. The Directors considered the character and amount of fees to be paid by the Fund, other than under the New Investment Advisory Agreement, for services to be provided by Victory Capital and its affiliates. The Directors further considered the revenues and profitability of Victory Capital’s businesses other than the Fund business. To the extent applicable, the Directors also considered the potential benefits to the Fund and to Victory Capital and its affiliates from the use of “soft” commission dollars generated by the Fund to pay for research and brokerage services.

The Directors noted that the completion of the Transaction would result in a long-term reciprocal distribution partnership between Amundi and Victory Capital, and that Victory Capital may benefit from Amundi’s ability to market the services of Victory Capital globally, including in an increase of the overall scale of Victory Capital. The Directors considered that the Transaction, if completed, would significantly increase Victory Capital’s assets under management and expand Victory Capital’s investment capabilities. The Directors considered that this increased size and diversification could facilitate Victory Capital’s continued investment in its business and products, which Victory Capital would be able to leverage across a broader base of assets. The Directors considered that Victory Capital and the Fund are expected to receive reciprocal intangible benefits from the relationship, including mutual brand recognition. The Directors concluded that any such benefits received by Victory Capital as a result of its relationship with the Fund were reasonable.

Conclusion

After consideration of the factors described above as well as other factors, the Directors, including the Independent Directors, concluded that the New Investment Advisory Agreement and the Interim Investment Advisory Agreement for the Fund, including the fees payable thereunder, were fair and reasonable and voted to approve the New Investment Advisory Agreement and the Interim Investment Advisory Agreement.

ITEM 12. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. (Unaudited)

A closed-end management investment company that is filing an annual report on this Form N-CSR must, unless it invests exclusively in non-voting securities, describe the policies and procedures that it uses to determine how to vote proxies relating to portfolio securities, including the procedures that the company uses when a vote presents a conflict between the interests of its shareholders, on the one hand, and those of the company’s investment adviser; principal underwriter; or any affiliated person (as defined in Section 2(a)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules thereunder) of the company, its investment adviser, or its principal underwriter, on the other. Include any policies and procedures of the company’s investment adviser, or any other third party, that the company uses, or that are used on the company’s behalf, to determine how to vote proxies relating to portfolio securities.

VICTORY PORTFOLIOS IV

VICTORY VARIABLE INSURANCE FUNDS II

(together with their series portfolios, collectively, the “Open-End Funds”)

PIONEER FLOATING RATE FUND, INC.

PIONEER HIGH INCOME FUND, INC.

PIONEER DIVERSIFIED HIGH INCOME FUND, INC.

PIONEER MUNICIPAL HIGH INCOME FUND, INC.

PIONEER MUNICIPAL HIGH INCOME ADVANTAGE FUND, INC.

PIONEER MUNICIPAL HIGH INCOME OPPORTUNITIES FUND, INC.

PIONEER ILS INTERVAL FUND

(COLLECTIVELY, THE “CLOSED-END FUNDS”)

(TOGETHER WITH THE OPEN-END FUNDS, COLLECTIVELY, THE “FUNDS”)

CODE OF CONDUCT

FOR PRINCIPAL EXECUTIVE OFFICER AND PRINCIPAL FINANCIAL OFFICER

A. This Code of Conduct (the “Code”) applies to the Principal Executive Officer and Principal Financial Officer of the Funds, and the “Covered Officers”, each of whom is set forth in Exhibit A, for the purpose of promoting:

B. Each Covered Officer should adhere to a high standard of business ethics and should be sensitive to situations that may give rise to actual as well as apparent conflicts of interest.

Certain conflicts of interest that could arise out of the relationships between Covered Officers and the Trusts already are subject to conflict of interest provisions in the Investment Company Act of 1940 (“Investment Company Act”) and the Investment Advisers Act of 1940 (“Investment Advisers Act”). For example, Covered Officers may not individually engage in certain transactions (such as the purchase or sale of securities or other property) with the Trusts because of their status as “affiliated persons” of the Trusts. The Trusts’ and their investment adviser’s compliance programs and procedures are designed to prevent, or identify and correct, violations of these provisions. This Code does not, and is not intended to, repeat or replace these programs and procedures, and such conflicts fall outside of the parameters of this Code.

Although typically not presenting an opportunity for improper personal benefit, conflicts may arise or result from the contractual relationship between the Trusts and the investment adviser and the administrator, whose officers or employees also serve as Covered Officers. As a result, this Code recognizes that the Covered Officers will, in the normal course of their duties (whether formally for the Trusts or for the adviser or the administrator, or for both), be involved in establishing policies and implementing decisions that will have different effects on the adviser, the administrator and the Trusts. The participation of the Covered Officers in such activities is inherent in the contractual relationship between the adviser, the administrator and the Trusts and is consistent with the performance by the Covered Officers of their duties as officers of the Trusts. Thus, if performed in conformity with the provisions of the Investment Company Act and the Investment Advisers Act, such activities will be deemed to have been handled ethically. In addition, it is recognized by each Trust’s Board of Trustees (the “Board”) that the Covered Officers may also be officers or employees of one or more other investment companies covered by this or other codes.

Other conflicts of interest are covered by the Code, even if such conflicts of interest are not subject to provisions in the Investment Company Act or the Investment Advisers Act. Section C describes the types of conflicts of interest that are covered under this Code, but Covered Officers should keep in mind that these examples are not exhaustive. The overarching principle is that the personal interest of a Covered Officer should not be placed improperly before the interest of the Company.

C. Conflicts of interest. When a Covered Person becomes aware of a situation that could involve a conflict of interest, or that could reasonably be considered an appearance of a conflict of interest, the Covered Person should disclose this matter to the Chief Compliance Officer. For purposes of this Code, the Chief Compliance Officer shall be the Chief Compliance Officer of Victory Capital Management Inc. (“VCM”). Examples of these include:

D. Conflicts of interest not specifically enumerated. It is impractical to attempt to list in this Code all possible situations that could result in a conflict of interest. If a proposed transaction, interest, personal activity, or investment raises any concerns, questions or doubts, a Covered Officer should consult with the Chief Compliance Officer before engaging in such transaction or investment or pursuing such interest or activity. The Chief Compliance Officer shall review the facts and circumstances of the actual or potential conflict of interest in accordance with Section IV of these Procedures.

A. Each Covered Officer should familiarize himself or herself with the disclosure requirements generally applicable to the Trusts.

B. Each Covered Officer should not knowingly misrepresent, or cause others to misrepresent, facts about the Trusts to others, whether within or outside the Trusts, including to the Trusts’ Trustees and auditors, and to governmental regulators and self-regulatory organizations.

C. Each Covered Officer should, to the extent appropriate within his or her area of responsibility, consult with other officers and employees of the Trusts, the adviser and the administrator with the goal of promoting full, fair, accurate, timely and understandable disclosure in the reports and documents the Trusts file with, or submit to, the SEC and in other public communications made by the Trusts.

D. It is the responsibility of each Covered Officer to promote compliance with the standards and restrictions imposed by applicable laws, rules and regulations.

A. Responsibilities and conduct. Each Covered Officer must

B. Chief Compliance Officer. The Chief Compliance Officer is responsible for applying this Code to specific situations in which questions are presented under it and has the authority to interpret this Code in any particular situation. Based on its review, the Chief Compliance Officer shall advise the Covered Officer that the proposed transaction, investment, interest or activity: (i) would not violate this Code; (ii) would not violate this Code only if conducted in a particular manner and/or subject to certain conditions or safeguards; or (iii) would violate the Code and is, therefore, prohibited.

C. Waivers. A Covered Officer may request a waiver from a provision of this Code if there is a reasonable likelihood that a contemplated action would not involve an actual conflict of interest that this Code is designed to prevent. The Audit and Risk Oversight Committee of the Board (the “Committee”) shall review and act upon any request for a waiver from any provision of the Code. The Committee shall disclose any waiver from a provision of the Code to the extent required by SEC rules or any other policy of the Trusts or VCM.

D. Enforcing the Code of Conduct. The Trusts will adhere to the following procedures in investigating and enforcing this Code:

This Code shall be the sole code of conduct adopted by the Trusts for purposes of Section 406 of the Sarbanes-Oxley Act and the rules and forms applicable to registered investment companies relating to that section. Insofar as other policies or procedures of the Trusts, the Trusts’ investment adviser, principal underwriter, or other service providers govern or purport to govern the behavior or activities of the Covered Officers who are subject to this Code, they are superseded by this Code to the extent that they overlap or conflict with the provisions of this Code. The Codes of Ethics under Rule 17j-1 under the Investment Company Act, and any insider trading policies are separate policies of the Trusts, VCM, any sub-adviser or the principal underwriter that apply to the Covered Officers and others, and are not part of this Code.

Any amendments to this Code, other than amendments to Exhibit A, must be approved or ratified by a majority vote of the Board, including a majority of the Trustees who are not “interested persons” (as defined in the Investment Company Act) (the “Independent Trustees”). Any changes to this Code will, to the extent required, will be disclosed as provided by SEC rules.

All reports and records prepared or maintained pursuant to this Code will be considered confidential and shall be maintained and protected accordingly. Except as otherwise required by law or this Code, such matters shall not be disclosed to anyone other than officers and Trustees of the Trust, the Trusts’ investment adviser, administrator or sub-administrator, counsel to the Trusts or counsel to the Independent Trustees.

The Code is intended solely for the internal use by the Trusts and does not constitute an admission, by or on behalf of the Trusts, as to any fact, circumstance, or legal conclusion.

Adopted: December 30 , 2024

Exhibit A

Persons Covered by this Code of Conduct

The Funds

Principal Executive Officer: Thomas Dusenberry, President

Principal Financial Officer: Carol D.Trevino, Treasurer

As of: April 1, 2025

Exhibit B

Acknowledgement

Pursuant to the requirements of the Code of Conduct adopted by the Funds, (the “Code”), I hereby acknowledge and affirm that I have received, read and understand the Code and agree to adhere to and abide by the letter and spirit of its provisions.

Exhibit B

Acknowledgement

Pursuant to the requirements of the Code of Conduct adopted by the Funds, (the “Code”), I hereby acknowledge and affirm that I have received, read and understand the Code and agree to adhere to and abide by the letter and spirit of its provisions.

Exhibit C

Annual Certification

Pursuant to the requirements of the Code of Conduct adopted by the Funds, (the “Code”), I hereby acknowledge and affirm that since the date of the last annual certification given pursuant to the Code, I have complied with all requirements of the Code.

Exhibit C

Annual Certification

Pursuant to the requirements of the Code of Conduct adopted by the Funds, (the “Code”), I hereby acknowledge and affirm that since the date of the last annual certification given pursuant to the Code, I have complied with all requirements of the Code.

ITEM 13. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

(a) If the registrant is a closed-end management investment company that is filing an annual report on this Form N-CSR, provide the following information:

(1) State the name, title, and length of service of the person or persons employed by or associated with the registrant or an investment adviser of the registrant who are primarily responsible for the day-to-day management of the registrant’s portfolio (“Portfolio Manager”). Also state each Portfolio Manager’s business experience during the past 5 years.

Additional information about the portfolio manager

Other accounts managed by the portfolio manager

The table below indicates, for the portfolio manager of the fund, information about the accounts other than the fund over which the portfolio manager has day-to-day investment responsibility. All information on the number of accounts and total assets in the table is as of March 31, 2025. For purposes of the table, “Other Pooled Investment Vehicles” may include investment partnerships, undertakings for collective investments in transferable securities (“UCITS”) and other non-U.S. investment funds and group trusts, and “Other Accounts” may include separate accounts for institutions or individuals, insurance company general or separate accounts, pension funds and other similar institutional accounts but generally do not include the portfolio manager’s personal investment accounts or those which the manager may be deemed to own beneficially under the code of ethics. Certain funds and other accounts managed by the portfolio manager may have substantially similar investment strategies.

Potential conflicts of interest

When a portfolio manager is responsible for the management of more than one account, the potential arises for the portfolio manager to favor one account over another. The principal types of potential conflicts of interest that may arise are discussed below. For the reasons outlined below, Amundi US does not believe that any material conflicts are likely to arise out of a portfolio manager’s responsibility for the management of the fund as well as one or more other accounts. Although Amundi US has adopted procedures that it believes are reasonably designed to detect and prevent violations of the federal securities laws and to mitigate the potential for conflicts of interest to affect its portfolio management decisions, there can be no assurance that all conflicts will be identified or that all procedures will be effective in mitigating the potential for such risks. Generally, the risks of such conflicts of interest are increased to the extent that a portfolio manager has a financial incentive to favor one account over another. Amundi US has structured its compensation arrangements in a manner that is intended to limit such potential for conflicts of interest. See “Compensation of Portfolio Manager” below.

Compensation of portfolio manager

Amundi US has adopted a system of compensation for portfolio managers that seeks to align the financial interests of the portfolio managers with those of shareholders of the accounts (including Pioneer funds) the portfolio managers manage, as well as with the financial performance of Amundi US. The compensation program for all Amundi US portfolio managers includes a base salary (determined by the rank and tenure of the employee) and an annual bonus program, as well as customary benefits that are offered generally to all full-time employees. Base compensation is fixed and normally reevaluated on an annual basis. Amundi US seeks to set base compensation at market rates, taking into account the experience and responsibilities of the portfolio manager. The bonus plan is intended to provide a competitive level of annual bonus compensation that is tied to the portfolio manager achieving superior investment performance and align

the interests of the investment professional with those of shareholders, as well as with the financial performance of Amundi US. Any bonus under the plan is completely discretionary, with a maximum annual bonus that may be in excess of base salary. The annual bonus is based upon a combination of the following factors:

The quantitative and qualitative performance components comprise 80% and 20%, respectively, of the overall bonus calculation (on a pre-adjustment basis). A portion of the annual bonus is deferred for a specified period and may be invested in one or more Pioneer funds.

Certain portfolio managers participate in other programs designed to reward and retain key contributors. Portfolio managers also may participate in a deferred compensation program, whereby deferred amounts are invested in one or more Pioneer funds or collective investment trusts or other unregistered funds with similar investment objectives, strategies and policies.

Share ownership by portfolio manager

The following table indicates as of March 31, 2025 the value, within the indicated range, of shares beneficially owned by the portfolio manager of the fund.

ITEM 14. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

(a) If the registrant is a closed-end management investment company, in the following tabular format, provide the information specified in paragraph (b) of this Item with respect to any purchase made by or on behalf of the registrant or any affiliated purchaser, as defined in Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of shares or other units of any class of the registrant’s equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781).

During the period covered by this report, there were no purchases made by or on behalf of the registrant or any affiliated purchaser as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934 (the Exchange Act), of shares of the registrants equity securities that are registered by the registrant pursuant to Section 12 of the Exchange Act.

ITEM 15. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Describe any material changes to the procedures by which shareholders may recommend nominees to the registrant’s Board of Directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R(17 CFR 229.407)(as required by Item 22(b)(15)) of Schedule 14A (17 CFR 240.14a-101), or this Item.

There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant’s Board of Directors since the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R of Schedule 14(A) in its definitive proxy statement, or this item.

ITEM 16. CONTROLS AND PROCEDURES.

(a) Disclose the conclusions of the registrant’s principal executive and principal financials officers, or persons performing similar functions, regarding the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR 270.30(a)-3(b) and Rules 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR 240.13a-15(b) or 240.15d-15(b)).

The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures are effective based on the evaluation of these controls and procedures as of a date within 90 days of the filing date of this report.

(b) Disclose any change in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17CFR 270.30a-3(d)) that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

There were no significant changes in the registrant’s internal control over financial reporting that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 17. DISCLOSURE OF SECURITIES LENDING ACTIVITIES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

(a) If the registrant is a closed-end management investment company, provide the following dollar amounts of income and compensation related to the securities lending activities of the registrant during its most recent fiscal year:

N/A

(1) Gross income from securities lending activities;

N/A

(2) All fees and/or compensation for each of the following securities lending activities and related services: any share of revenue generated by the securities lending program paid to the securities lending agent(s) (revenue split); fees paid for cash collateral management services (including fees deducted from a pooled cash collateral reinvestment vehicle) that are not included in the revenue split; administrative fees that are not included in the revenue split; fees for indemnification that are not included in the revenue split; rebates paid to borrowers; and any other fees relating to the securities lending program that are not included in the revenue split, including a description of those other fees;

N/A

(3) The aggregate fees/compensation disclosed pursuant to paragraph (2); and

N/A

(4) Net income from securities lending activities (i.e., the dollar amount in paragraph (1) minus the dollar amount in paragraph (3)).

If a fee for a service is included in the revenue split, state that the fee is included in the revenue split.

N/A

(b) If the registrant is a closed-end management investment company, describe the services provided to the registrant by the securities lending agent in the registrants most recent fiscal year.

N/A

Item 18. RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION.

N/A

ITEM 19. EXHIBITS.

(a) File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated.

(1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit.

(2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2(a)) , exactly as set forth below:

Filed herewith.

(b) Certifications pursuant to Rule 30a-2(b) under the 1940 Act and Section 906 of the Sarbanes-Oxley Act of 2002 are attached hereto.

(3) Not applicable.

SIGNATURES

[See General Instruction F]

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant) Pioneer Municipal High Income Advantage Fund, Inc.

By (Signature and Title)* /s/ Thomas Dusenberry

Thomas Dusenberry, President and Principal Executive Officer

Date June 6, 2025

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)* /s/ Thomas Dusenberry

Thomas Dusenberry, President and Principal Executive Officer

Date June 6, 2025

By (Signature and Title)* /s/ Carol D. Trevino

Carol D. Trevino, Treasurer Principal Financial Officer

Date June 6, 2025