X0609 4 2026-03-24 0 0001865631 NEXTNAV INC. NN 0002060247 Insley Susan Brasse false 11911 FREEDOM DRIVE SUITE 200 RESTON VA 20190 0 1 0 0 Chief Operating Officer 1 Common Stock 2026-03-24 4 S 0 2370 18.5718 D 170273 D This sale was effected pursuant to a Rule 10b5-1 sales plan adopted by the Reporting Person on August 19, 2025 and the proceeds are intended to be used to satisfy tax withholding obligations in connection with the vesting of the underlying equity awards. The reported price is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.35 to $19.00 per share, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or to 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/ James Black, by power of attorney 2026-03-25