Form 6-K Filing - NIO Inc.

This report is a Form 6-K filing by NIO Inc. for April 2026. The company, whose principal executive offices are located in Shanghai, People's Republic of China, is required to file annual reports under Form 20-F. Attached as Exhibit 99.1 is NIO Inc.'s 2025 Annual Report, which was published with the Stock Exchange of Hong Kong Limited. The report is signed by Yu Qu, Chief Financial Officer, on April 10, 2026.