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 June 2026

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

ITEM

ULTRAPAR PARTICIPAÇÕES S.A.

MARKET ANNOUNCEMENT

Disposal of relevant ownership position

São Paulo, June 2nd, 2026 – Ultrapar Participações S.A. (B3: UGPA3 / NYSE: UGP, “Ultrapar”), in compliance with CVM Resolution 44/21, hereby informs that it was notified by the shareholder Canada Pension Plan Investment Board (“CPPIB”) that, as of June 1st, 2026, its aggregate ownership reached 4.94% of the total common shares issued by Ultrapar, amounting to 55,117,773 shares.

CPPIB also declared that it does not intend to change Ultrapar's control composition or administrative structure.

Alexandre Mendes Palhares

Chief Financial and Investor Relations Officer Ultrapar Participações S.A.

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: June 2, 2026

(Minutes of the Meeting of the Board of Directors)