6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 Or 15d-16 Of

The Securities Exchange Act Of 1934

For the month of April 2025

Commission File Number: 001-14950

ULTRAPAR HOLDINGS INC.

(Translation of Registrant’s Name into English)

Brigadeiro Luis Antonio Avenue, 1343, 9th Floor

São Paulo, SP, Brazil 01317-910

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ____X____                                                         Form 40-F ________

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes ________                                                                       No ____X____

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes ________                                                                       No ____X____

ULTRAPAR HOLDINGS INC.

TABLE OF CONTENTS

(Minutes of the Meeting of the Board of Directors of Ultrapar Participações S.A.,

held on April 2nd, 2025)

ULTRAPAR PARTICIPAÇÕES S.A.

Publicly Traded Company

MINUTES OF THE MEETING OF THE BOARD OF DIRECTORS

Date, Hour and Place:

April 2nd, 2025, at 10:00 a.m., at the Company’s headquarters, located at Brigadeiro Luís Antônio Avenue, Nr. 1.343, 9th floor, in the City and State of São Paulo.

Members in attendance:

(i) Members of the Board of Directors undersigned; (ii) Secretary of the Board of Directors, Ms. Denize Sampaio Bicudo; and (iii) Chief Executive Officer, Mr. Marcos Marinho Lutz.

Matters discussed and resolutions:

1. Considering the Stock Based Incentive Plan approved by the Company’s Extraordinary General Meeting held on April 19th, 2023, the Board of Directors approved, based on the recommendation of the People and Sustainability Committee: (i) the 5th Restricted Stock Based Incentive Plan (“5th Program”), (ii) the list of participants designated to participate in the 5th Program and the respective quantities of shares to be granted, and (iii) the execution of contracts between the Company and each participant of the programs mentioned in item (i). The aforementioned documents will be archived at the Company’s headquarters.

Notes: The resolutions were approved, with no amendments or qualifications, by all Board members.

There being no further matters to discuss, the meeting was concluded, and these minutes were written, read, passed, and signed by all the Board members present.

Jorge Marques de Toledo Camargo – Chairman

Marcos Marinho Lutz – Vice-Chairman

Ana Paula Vitali Janes Vescovi

Fabio Venturelli

Flávia Buarque de Almeida

Francisco de Sá Neto

José Mauricio Pereira Coelho

Marcelo Faria de Lima

Peter Paul Lorenço Estermann

Denize Sampaio Bicudo – Secretary of the Board of Directors

SIGNATURES

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

Date: April 2, 2025

(Code of Ethics, Anticorruption Policy)