X0508 4 2025-12-05 0 0001780312 AST SpaceMobile, Inc. ASTS 0002027976 Yao Huiwen C/O AST SPACEMOBILE, INC., MIDLAND AIR & SPACE PORT, 2901 ENTERPRISE LANE MIDLAND TX 79706 0 1 0 0 Chief Technology Officer 1 Class A Common Stock 2025-12-05 4 S 0 40000 73.52 D 4750 D The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 12, 2025. Represents the weighted average selling price. These shares were sold in multiple transactions at prices ranging from $70.74 per share to $74.94 per share, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Huiwen Yao 2025-12-08