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~~March 1925, ~~2024~~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 MUNICIPAL HIGH INCOME ADVANTAGE FUND, INC.

PIONEER MUNICIPAL HIGH INCOME OPPORTUNITIES FUND, INC.

(Co-Registrants)

(Exact name of registrant as specified in its charter)

Maryland	811-21654 (Pioneer Floating Rate Fund, Inc.) 811-22014 (Pioneer Diversified High Income Fund, Inc.) 811-21043 (Pioneer High Income Fund, Inc.) ~~811-21321 (Pioneer Municipal High Income Fund, Inc.) 811-21409 (Pioneer Municipal High Income Advantage Fund, Inc.) 811-23699 (Pioneer Municipal High Income Opportunities Fund, Inc.)~~	58-2683903 (Pioneer Floating Rate Fund, Inc.) 20-8779403 (Pioneer Diversified High Income Fund, Inc.) 02-0563892 (Pioneer High Income Fund, Inc.) ~~03-0512430 (Pioneer Municipal High Income Fund, Inc.) 81-0634319 (Pioneer Municipal High Income Advantage Fund, Inc.) 87-0966308 (Pioneer Municipal High Income Opportunities Fund, Inc.)~~
(State or other jurisdictionof incorporation)	(Commission File Numbers)	(I.R.S. Employer Identification Nos.)
(State or other jurisdiction of incorporation)	(Commission File Numbers)	(I.R.S. Employer Identification Nos.)
60 State Street, Boston, MA		02109
(Address of principal executive offices)		(Zip Code)

60 State Street,

Boston, MA

(Address of principal executive offices)

02109

(Zip Code)

1-617-742-7825

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock PHD New York Stock Exchange Common Stock HNW NYSE American Common Stock PHT New York Stock Exchange ~~Common Stock MHI New York Stock Exchange Common Stock MAV New York Stock Exchange Common Stock MIO New York Stock Exchange~~

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

☐	Emerging growth company

☐	If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to section 13(a) of the Exchange Act.

Item 8.01

Other Events.

~~Amundi~~Each ~~Asset~~of ~~Management~~Pioneer USFloating Rate Fund, Inc. ~~(the “Adviser”)~~, ~~each~~Pioneer ~~fund’s~~Diversified ~~investment~~High ~~adviser,~~Income ~~is currently an indirect~~Fund, ~~wholly-owned subsidiary of Amundi~~Inc. Onand ~~July 9,~~Pioneer ~~2024,~~High ~~Amundi~~Income ~~announced that it had entered into a definitive agreement with Victory Capital Holdings~~Fund, Inc. ~~(“Victory~~announced ~~Capital”)~~today tothat ~~combine~~ the ~~Adviser with Victory Capital, and for Amundi to become a~~Special ~~strategic~~Meeting ~~shareholder~~ of ~~Victory~~Stockholders ~~Capital~~ (the “~~Transaction~~Meeting”). ~~Victory~~originally ~~Capital~~scheduled isfor ~~headquartered~~Wednesday, inMarch 26, ~~San~~2025 ~~Antonio,~~at ~~Texas~~11:00 a. ~~The~~m. ~~closing~~Eastern ofTime ~~the~~has ~~Transaction~~been ispostponed ~~subject~~in order to ~~certain~~give ~~regulatory~~shareholders ~~approvals~~more ~~and~~time ~~other~~to ~~conditions~~vote. ~~There~~The isFunds ~~no assurance~~will ~~that~~announce the ~~Transaction~~rescheduled ~~will~~Meeting date, ~~close~~time and location in due course.

~~The~~As ~~closing~~described ofin the ~~Transaction~~proxy ~~would~~materials ~~cause~~for ~~each fund’s current investment advisory agreement with~~ the ~~Adviser~~Meeting topreviously ~~terminate.~~distributed, ~~Under~~ the ~~terms~~Board of ~~the~~Directors ~~Transaction,~~of each ~~fund’s~~Fund has ~~Board~~fixed ofthe ~~Directors~~close ~~will~~of bebusiness ~~asked~~on toFebruary 4, ~~approve~~2025 aas ~~new~~the ~~investment~~record ~~advisory~~date ~~agreement~~ for the ~~fund~~determination ~~with~~of ~~Victory~~stockholders ~~Capital Management Inc., an affiliate~~ of ~~Victory Capital. If approved by~~ the ~~Board,~~Fund ~~each~~entitled ~~fund’s~~to ~~new~~notice ~~investment~~of ~~advisory~~and ~~agreement will be submitted~~ to ~~the~~vote ~~shareholders~~at of the ~~fund~~Meeting ~~for~~and ~~their~~any ~~approval.~~adjournment ~~There is no assurance that the Board~~ or ~~the~~postponement ~~shareholders of the fund will approve the new investment advisory agreement~~thereof.

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits:

Exhibit Number		Description
ExhibitNumber		Description
99.1		Press Release, dated ~~July~~March 1925, ~~2024~~2025

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, each Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: ~~July~~March 1925, ~~2024~~2025

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.~~ /s/ Christopher Kelley Name: Christopher Kelley Title: Secretary

Filing Compare · Pioneer Floating Rate Fund, Inc.