X0609 4 2026-08-14 false 0001860160 Firefly Aerospace Inc. FLY 0002078086 Boland Ryan Michael false C/O FIREFLY AEROSPACE INC. 2203 SCOTTSDALE DRIVE LEANDER TX 78641 true false false false false Common Stock 2026-08-14 4 J false 40821 D 0 I See footnote Common Stock 2026-08-14 4 J false 3193 A 127156 I See footnote Common Stock 6964 D Represents shares of common stock distributed by Mars Technology Holdings LLC ("Mars") on a pro rata basis to its limited partners, including 3,193 shares to the Ryan M. Boland Revocable Trust. The reporting person exercised voting and dispositive control over the shares of common stock previously held by Mars. Includes 85 shares received in a pro rata distribution exempt from reporting under Rule 16a-9. These shares are held directly by the Ryan M. Boland Revocable Trust for which the reporting person serves as trustee. The reporting person may be deemed to have beneficial ownership of the shares held by the trust. A portion of these securities are restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Issuer's common stock. Exhibit 24.1 - Power of Attorney /s/ Nathan O'Konek, Attorney-in-fact 2026-08-18