The Company, Liquidity, and Basis of Presentation	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company, Liquidity, and Basis of Presentation	1. The Company and Initial Public Offering Firefly Aerospace Inc. (“Firefly” or the “Company”) is headquartered in Cedar Park, Texas. The Company was incorporated under the laws of the State of Delaware on January 27, 2017 and commenced operations on May 1, 2017. On August 8, 2025, the Company completed an initial public offering (“IPO”) of shares of its common stock, par value $0.0001 per share. The Company’s common stock trades on the NASDAQ under the ticker “FLY.” The Company is a space and defense technology company providing comprehensive mission solutions to national security, government, and commercial customers with an established track record of success. The Company's mission is to reliably and repeatedly launch, land, and operate space systems from Earth to the Moon and beyond. Backed by a world-class team and proven technology, Firefly designs, develops, and deploys launch vehicles and dynamic spacecraft solutions to support critical missions to space and defense customers. The Company’s vertically-integrated approach encompasses the design, manufacturing and operation of small and medium launch vehicles, landers and spacecraft, as well as the development of complementary remote sensing, missile defense, and command and control software systems. Its purpose-built family of products aligns with the ongoing paradigm shift in government missions and procurement processes, where speed, efficiency, and economics drive customer decision-making. Through its offerings across launch and spacecraft solutions, its vertically-integrated product line, and its infrastructure, Firefly serves as a critical provider for commercial and government customers. Since Firefly’s formation, it has established itself as a category leader across a diverse range of products and services that takes a comprehensive approach to providing a family of solutions to its customers’ space-based opportunities. On October 31, 2025, the Company completed its acquisition of SciTec, Inc. (“SciTec”), a leader in advanced national security technologies. The acquisition advances the Company’s comprehensive space services by adding mission-proven defense software analytics, remote sensing, and multi-phenomenology data expertise. SciTec’s core capabilities – which include missile warning, tracking and defense, intelligence, surveillance and reconnaissance, space domain awareness, and autonomous command and control – supplement Firefly’s launch, lunar, and in-space services. SciTec further adds ground and onboard data processing as well as AI-enabled systems designed for low latency operations to support advanced threat tracking and response across multiple domains. As an early-stage company with a limited commercial operating history, Firefly is subject to all the risks and expenses associated with a start-up company. The Company must, among other things, respond to competitive developments, attract, retain, and motivate qualified personnel, and support the expense of marketing new products based on innovative technology. The Company expects to transition to operating as a manufacturing company, capable of producing and selling products at scale, as of the date the technological feasibility of the Alpha rocket is confirmed. The Company defines technological feasibility as satisfying three specific conditions: (i) reaching product qualification, (ii) achieving production readiness, and (iii) having successfully deployed a customer’s payload into its specific orbit and final destination. The Company has successfully deployed customer payloads into their specific orbits or destinations. The Company’s executive leadership comprised of at least the Chief Operating Officer and the Chief Technology Officer shall determine at what point the Company’s products have been fully qualified to reach technological feasibility and full-rate production. Until this determination is made, the Company has not recorded any inventory amounts, and all costs incurred are expensed. The unaudited condensed consolidated financial statements of the Company have been prepared on a going concern basis, which contemplates the realization of assets and the discharge of liabilities in the normal course of business. From inception, the Company has incurred an accumulated deficit totaling $1.1 billion as of March 31, 2026, and has incurred $62.5 million and $56.5 million in negative cash flows from operations during the three months ended March 31, 2026 and 2025, respectively. Initial Public Offering On August 8, 2025, the Company completed its IPO of an aggregate of 22.2 million shares of its common stock, par value $0.0001, which includes the exercise in full by the underwriters of their option to purchase an additional 2.9 million shares of common stock, at a public offering price of $45.00 per share, for an aggregate offering price of $998.6 million. The Company received aggregate proceeds of $932.3 million, net of $57.4 million of underwriting discounts and commissions and $11.4 million of offering costs. In connection with the closing of the IPO, all outstanding shares of the Company's Preferred Stock were converted into 105.8 million shares of common stock. All outstanding Common Warrants were automatically exercised into 1.0 million shares of common stock and 0.6 million shares of common stock are reserved for issuance upon exercise of the Series J Warrants (each as defined in Note 9. Fair Value Measurement). On August 8, 2025, the Company used a portion of the net proceeds from the IPO to repay the Term Loans under the Financing Agreement (each as defined in Note 11. Notes Payable), together with the specified prepayment premium of $11.4 million, and accrued interest. In connection with the IPO, the Company effected a 1-for-3.2544 reverse stock split of its common stock and a proportionate decrease in the number of its authorized shares. All share and per share information, including share-based compensation, throughout the accompanying unaudited condensed consolidated financial statements has been retroactively adjusted to reflect the reverse stock split.

The Company, Liquidity, and Basis of Presentation

3 Months Ended

Mar. 31, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The Company, Liquidity, and Basis of Presentation

1. The Company and Initial Public Offering

Firefly Aerospace Inc. (“Firefly” or the “Company”) is headquartered in Cedar Park, Texas. The Company was incorporated under the laws of the State of Delaware on January 27, 2017 and commenced operations on May 1, 2017.

On August 8, 2025, the Company completed an initial public offering (“IPO”) of shares of its common stock, par value $0.0001 per share. The Company’s common stock trades on the NASDAQ under the ticker “FLY.”

The Company is a space and defense technology company providing comprehensive mission solutions to national security, government, and commercial customers with an established track record of success. The Company's mission is to reliably and repeatedly launch, land, and operate space systems from Earth to the Moon and beyond. Backed by a world-class team and proven technology, Firefly designs, develops, and deploys launch vehicles and dynamic spacecraft solutions to support critical missions to space and defense customers. The Company’s vertically-integrated approach encompasses the design, manufacturing and operation of small and medium launch vehicles, landers and spacecraft, as well as the development of complementary remote sensing, missile defense, and command and control software systems. Its purpose-built family of products aligns with the ongoing paradigm shift in government missions and procurement processes, where speed, efficiency, and economics drive customer decision-making. Through its offerings across launch and spacecraft solutions, its vertically-integrated product line, and its infrastructure, Firefly serves as a critical provider for commercial and government customers.

Since Firefly’s formation, it has established itself as a category leader across a diverse range of products and services that takes a comprehensive approach to providing a family of solutions to its customers’ space-based opportunities.

On October 31, 2025, the Company completed its acquisition of SciTec, Inc. (“SciTec”), a leader in advanced national security technologies. The acquisition advances the Company’s comprehensive space services by adding mission-proven defense software analytics, remote sensing, and multi-phenomenology data expertise. SciTec’s core capabilities – which include missile warning, tracking and defense, intelligence, surveillance and reconnaissance, space domain awareness, and autonomous command and control – supplement Firefly’s launch, lunar, and in-space services. SciTec further adds ground and onboard data processing as well as AI-enabled systems designed for low latency operations to support advanced threat tracking and response across multiple domains.

As an early-stage company with a limited commercial operating history, Firefly is subject to all the risks and expenses associated with a start-up company. The Company must, among other things, respond to competitive developments, attract, retain, and motivate qualified personnel, and support the expense of marketing new products based on innovative technology. The Company expects to transition to operating as a manufacturing company, capable of producing and selling products at scale, as of the date the technological feasibility of the Alpha rocket is confirmed. The Company defines technological feasibility as satisfying three specific conditions: (i) reaching product qualification, (ii) achieving production readiness, and (iii) having successfully deployed a customer’s payload into its specific orbit and final destination. The Company has successfully deployed customer payloads into their specific orbits or destinations. The Company’s executive leadership comprised of at least the Chief Operating Officer and the Chief Technology Officer shall determine at what point the Company’s products have been fully qualified to reach technological feasibility and full-rate production. Until this determination is made, the Company has not recorded any inventory amounts, and all costs incurred are expensed.

The unaudited condensed consolidated financial statements of the Company have been prepared on a going concern basis, which contemplates the realization of assets and the discharge of liabilities in the normal course of business. From inception, the Company has incurred an accumulated deficit totaling $1.1 billion as of March 31, 2026, and has incurred $62.5 million and $56.5 million in negative cash flows from operations during the three months ended March 31, 2026 and 2025, respectively.

Initial Public Offering

On August 8, 2025, the Company completed its IPO of an aggregate of 22.2 million shares of its common stock, par value $0.0001, which includes the exercise in full by the underwriters of their option to purchase an additional 2.9 million shares of common stock, at a public offering price of $45.00 per share, for an aggregate offering price of $998.6 million. The Company received aggregate proceeds of $932.3 million, net of $57.4 million of underwriting discounts and commissions and $11.4 million of offering costs.

In connection with the closing of the IPO, all outstanding shares of the Company's Preferred Stock were converted into 105.8 million shares of common stock. All outstanding Common Warrants were automatically exercised into 1.0 million shares of common stock and 0.6 million shares of common stock are reserved for issuance upon exercise of the Series J Warrants (each as defined in Note 9. Fair Value Measurement).

On August 8, 2025, the Company used a portion of the net proceeds from the IPO to repay the Term Loans under the Financing Agreement (each as defined in Note 11. Notes Payable), together with the specified prepayment premium of $11.4 million, and accrued interest.

In connection with the IPO, the Company effected a 1-for-3.2544 reverse stock split of its common stock and a proportionate decrease in the number of its authorized shares. All share and per share information, including share-based compensation, throughout the accompanying unaudited condensed consolidated financial statements has been retroactively adjusted to reflect the reverse stock split.