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

For the month of May, 2023.

Commission File Number 001-40736

Lilium N.V.

(Translation of registrant’s name into English)

Claude Dornier Straße 1

Bldg. 335, 82234

Wessling, Germany

Telephone: +49 160 9704 6857

(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. Form 20-F x Form 40-F ¨

CONTENTS

Explanatory Note

On May 24, 2023, Lilium N.V. (the “Company”) issued a letter providing a business update for the three-month period ended March 31, 2023. The letter is furnished as Exhibit 99.1 to this Report on Form 6-K.

Incorporation by Reference

The contents of this Report on Form 6-K are hereby incorporated by reference into the Company’s registration statements on Form F-3 filed with the SEC on February 3, 2023 (File No. 333-269568), November 25, 2022 (Registration No. 333-268562), October 3, 2022 (File Nos. 333-267718 and 333-267719), the Company’s post-effective amendment No. 1 to Form F-1 on Form F-3 filed with the SEC on October 3, 2022 (File No. 333-265592) and the Company’s registration statement on Form S-8 filed with the SEC on November 18, 2021 (File No. 333-261175).

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.

Dated: May 24, 2023	Lilium N.V.
	By:	/s/ Klaus Roewe
		Name:	Klaus Roewe
		Title:	Chief Executive Officer and Executive Director

EXHIBIT INDEX

Exhibit Number	Description of Document
99.1	Letter issued by Lilium N.V. on May 24, 2023