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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of August 2025

Commission File Number: 001-15102

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Embraer S.A.

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Avenida Dra. Ruth Cardoso,8501,

30th floor (part), Pinheiros,São Paulo, SP, 05425-070, Brazil

(Address of principal executive offices)

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

Form 20-F xForm 40-F ¨

Indicate by check mark if the registrant is submitting the Form6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

SIGNATURES

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

Date: August 5, 2025