0001860160 2026-09-30 2026-09-30 0001860160 false 8-K 2026-09-30 Firefly Aerospace Inc. DE 001-42789 81-5194980 2203 Scottsdale Drive Leander TX 78641 512 893-5570 false false false false Common stock, par value $0.0001 per share FLY NASDAQ true false