6-K - AerCap Holdings N.V. (0001378789) (Filer)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

AERCAP HOLDINGS N.V.

(Translation of Registrant’s Name into English)

AerCap House, 65 St. Stephen’s Green, Dublin D02 YX20, Ireland, +353 1 819 2010

(Address of Principal Executive Office)

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

Other Events

On October 7, 2026, AerCap Funding Designated Activity Company (the “Issuer”), a wholly-owned subsidiary of AerCap Holdings N.V. (“AerCap”), issued $750 million aggregate principal amount of the Issuer’s 5.500% Senior Notes due 2030 (the “2030 Notes”) and $750 million aggregate principal amount of the Issuer’s 5.875% Senior Notes due 2033 (the “2033 Notes” and, together with the 2030 Notes, the “Notes”). In connection with the issuance of the Notes, AerCap is filing the following documents solely for incorporation into the Registration Statement on Form F-3 (File No. 333-297097).

Exhibits

SIGNATURE

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: October 7, 2026

EXHIBIT INDEX