X0508 4 2026-02-25 0001860160 Firefly Aerospace Inc. FLY 0002078103 Weiser Marc Allen C/O FIREFLY AEROSPACE INC. 1320 ARROW POINT DRIVE #109 CEDAR PARK TX 78613 true false false false false Common Stock 2026-02-25 4 A false 3334 0 A 3334 D Common Stock 2840043 I See footnotes Common Stock 1205209 I See footnotes Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. The RSUs vest on August 8, 2026, subject to the reporting person's continued service to the Issuer through the vesting date. Consists of shares of common stock held by BGW Ventures IV, LP over which the reporting person exercises voting and dispositive control. Consists of shares of common stock held by RPM Ventures IV, L.P. over which the reporting person exercises voting and dispositive control. Each of the foregoing entities and the reporting person disclaims beneficial ownership of the shares reported as indirectly owned by the reporting person herein, except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for purposes of Section 16 or for any other purpose. /s/ David Wheeler, Attorney-in-fact 2026-02-27