X0508 4 2025-12-02 0 0001865631 NEXTNAV INC. NN 0001998558 Sorond Mariam 11911 FREEDOM DRIVE SUITE 200 RESTON VA 20190 1 1 0 0 CEO, President and Director 1 Common Stock 2025-12-02 4 S 0 69853 13.8176 D 1340799 D This sale was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on March 21, 2025 and the proceeds are intended to be used to satisfy tax withholding obligations in connection with the vesting of the underlying equity awards. Exhibit 24 - Power of Attorney /s/ James Black, by power of attorney 2025-12-03