UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

Reportof Foreign Private Issuer

Pursuantto Rule 13a-16 Or 15d-16 Of

The Securities Exchange Act Of 1934

For the month ofMay2022

Commission File Number:001-14950

ULTRAPAR HOLDINGS INC.

(Translation of Registrant’s Name into English)

Brigadeiro LuisAntonioAvenue, 1343, 9thFloor

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.

Acquisition of relevant ownership position

São Paulo, May 13, 2022 – Ultrapar Participações S.A. (B3: UGPA3 / NYSE: UGP, “Ultrapar”), in compliance with CVM Resolution 44/21, hereby informs that it was notified by the shareholders Squadra Investimentos – Gestão de Recursos LTDA. and Squadra Investments – Gestão de Recursos LTDA. (“Squadra”) that they reached an aggregate ownership position of 5.13% of common shares issued by Ultrapar as of May 12, 2022, amounting to 57,168,200 shares.

Said position is represented by (i) 41,368,200 common shares and (ii) 15,800,000 common shares referenced in derivative instruments with physical settlement. Squadra also holds a short economic exposure through derivative instruments with physical settlement referenced to 15,800,000 common shares. Of the total reported above, 6,053,635 common shares are donated on loan.

Finally, Squadra also informed that it does not intend to change Ultrapar's control composition or administrative structure. 

Rodrigo de Almeida Pizzinatto

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: May 13,2022

ULTRAPAR HOLDING INC.

By: /s/ Rodrigo de Almeida Pizzinatto

Name: Rodrigo de Almeida Pizzinatto

Title: Chief Financial and Investor Relations Officer

(Market announcement)