6-K 1 tm2611597d1_6k.htm FORM 6-K

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 April 2026

Commission File Number: 001-38638

NIO Inc.

(Registrant’s Name)

Building 19, No. 1355, Caobao Road, Minhang District
Shanghai, People’s Republic of China

(Address of Principal Executive Offices)

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

Form 20-F x Form 40-F ¨

EXHIBIT INDEX

Exhibit No. |  | Description
99.1 |  | NIO Inc. 2025 Annual Report published with the Stock Exchange of Hong Kong Limited

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.

| NIO Inc.

| By | : | /s/ Yu Qu
| Name | : | Yu Qu
| Title | : | Chief Financial Officer

Date: April 10, 2026