Firefly Aerospace Inc.

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-04 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Firefly Aerospace Inc. (FLY) CIK: 0001860160 --- Reporting Owner --- Name: Boland Ryan Michael CIK: 0002078086 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-04 | Code: A (Grant or award) Shares: +3,630 | Price: $0.00 Shares Owned After: 6,964 | Ownership: D (Direct) Footnotes: [F1] Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. The RSUs vest on June 4, 2027, subject to the reporting person's continued service to the Issuer through the vesting date. [F2] A portion of these securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's common stock. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] The reporting person exercises voting and dispositive control over the shares of common stock held by Mars Technology Holdings LLC. [Holding #2] Security: Common Stock Ownership: I (Indirect) Footnotes: [F4] 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. [F5] Includes 1,018 shares received upon a pro rata distribution exempt from reporting under Section 16a-9. --- Footnotes (Complete Index) --- F1: Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. The RSUs vest on June 4, 2027, subject to the reporting person's continued service to the Issuer through the vesting date. F2: A portion of these securities are RSUs. Each RSU represents a contingent right to receive one share of the Issuer's common stock. F3: The reporting person exercises voting and dispositive control over the shares of common stock held by Mars Technology Holdings LLC. F4: 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. F5: Includes 1,018 shares received upon a pro rata distribution exempt from reporting under Section 16a-9. --- Signature --- /s/ /s/ David Wheeler, Attorney-in-fact (2026-06-08)