X0508 4 2025-03-18 0001865631 NEXTNAV INC. NN 0001881628 Shams Sammaad 11911 FREEDOM DR. STE. 200 RESTON VA 20190 0 1 0 0 Chief Accounting Officer 1 Common Stock 2025-03-18 4 S 0 3627 11.3555 D 71677 D Common Stock 2025-03-18 4 S 0 311 11.8773 D 71366 D Common Stock 2025-03-19 4 S 0 102 11.63 D 71264 D Represents the number of shares that had been sold to satisfy tax obligation upon vesting of previously granted restricted stock units. This sale was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on August 30, 2024. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.83 to $11.82, 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 ranges set forth in Footnotes 2 and 3 to this Form 4. The price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.84 to $11.91, inclusive. /s/ Christian Gates, by power of attorney 2025-03-20