Firefly Aerospace Inc.

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-01 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: Firefly Aerospace Inc. (FLY) CIK: 0001860160 --- Reporting Owner --- Name: AEROEQUITY GP, LLC CIK: 0001880792 Role: 10%+ Owner --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-01 | Code: S (Open market sale) Shares: -5,198,872 | Price: $48.00 Total Value: $249,545,856.00 Shares Owned After: 33,016,575 | Ownership: I (Indirect) | Nature: See Footnotes Footnotes: [F1] Glow NS Holdings, LLC is controlled by Glow NS Intermediate Holdings, LLC, its sole member. Glow NS Intermediate Holdings LLC is controlled by Glow Aggregator, LLC, its sole member. Glow Aggregator, LLC is controlled by AE Industrial Partners Fund II, L.P., its managing member. AE Industrial Partners Fund II, L.P. is controlled by AE Industrial Partners Fund II GP, LP ("AE Fund II GP"), its general partner. Glow Holdings Aggregator, LLC is controlled by AE Co-Investment Partners Fund III-F, LP, its managing member. AE Co-Investment Partners Fund III-F, LP is controlled by AE Industrial Partners Fund III GP, LP ("AE Fund III GP"), its general partner. [F2] (Continued from footnote 1) AE Fund II GP and AE Fund III GP are each managed by each entity's respective general partner, AeroEquity GP, LLC. AeroEquity GP, LLC is controlled by its managing members, Michael Greene and David Rowe. Messrs. Greene and Rowe make all voting and investment decisions with respect to the securities held by AE Industrial Partners. Each of the entities and individuals named above disclaims beneficial ownership of the securities held by AE Industrial Partners, except to the extent of its pecuniary interest therein. [F3] Held by Glow NS Holdings, LLC. [Transaction #2] Security: Common Stock Date: 2026-06-01 | Code: S (Open market sale) Shares: -2,801,128 | Price: $48.00 Total Value: $134,454,144.00 Shares Owned After: 17,688,857 | Ownership: I (Indirect) | Nature: See Footnotes Footnotes: [F1] Glow NS Holdings, LLC is controlled by Glow NS Intermediate Holdings, LLC, its sole member. Glow NS Intermediate Holdings LLC is controlled by Glow Aggregator, LLC, its sole member. Glow Aggregator, LLC is controlled by AE Industrial Partners Fund II, L.P., its managing member. AE Industrial Partners Fund II, L.P. is controlled by AE Industrial Partners Fund II GP, LP ("AE Fund II GP"), its general partner. Glow Holdings Aggregator, LLC is controlled by AE Co-Investment Partners Fund III-F, LP, its managing member. AE Co-Investment Partners Fund III-F, LP is controlled by AE Industrial Partners Fund III GP, LP ("AE Fund III GP"), its general partner. [F2] (Continued from footnote 1) AE Fund II GP and AE Fund III GP are each managed by each entity's respective general partner, AeroEquity GP, LLC. AeroEquity GP, LLC is controlled by its managing members, Michael Greene and David Rowe. Messrs. Greene and Rowe make all voting and investment decisions with respect to the securities held by AE Industrial Partners. Each of the entities and individuals named above disclaims beneficial ownership of the securities held by AE Industrial Partners, except to the extent of its pecuniary interest therein. [F4] Held by Glow Holdings Aggregator, LLC. Shares previously reported as held by Glow B Holdings, LLC, Glow C Holdings, LLC, Glow D Holdings, LLC and AE Co-Investment Partners Fund III-F, LP were contributed to Glow Holdings Aggregator, LLC in an exempted transaction pursuant to Rule 16a-13. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F1] Glow NS Holdings, LLC is controlled by Glow NS Intermediate Holdings, LLC, its sole member. Glow NS Intermediate Holdings LLC is controlled by Glow Aggregator, LLC, its sole member. Glow Aggregator, LLC is controlled by AE Industrial Partners Fund II, L.P., its managing member. AE Industrial Partners Fund II, L.P. is controlled by AE Industrial Partners Fund II GP, LP ("AE Fund II GP"), its general partner. Glow Holdings Aggregator, LLC is controlled by AE Co-Investment Partners Fund III-F, LP, its managing member. AE Co-Investment Partners Fund III-F, LP is controlled by AE Industrial Partners Fund III GP, LP ("AE Fund III GP"), its general partner. [F2] (Continued from footnote 1) AE Fund II GP and AE Fund III GP are each managed by each entity's respective general partner, AeroEquity GP, LLC. AeroEquity GP, LLC is controlled by its managing members, Michael Greene and David Rowe. Messrs. Greene and Rowe make all voting and investment decisions with respect to the securities held by AE Industrial Partners. Each of the entities and individuals named above disclaims beneficial ownership of the securities held by AE Industrial Partners, except to the extent of its pecuniary interest therein. [F5] Held by David Rowe. --- Footnotes (Complete Index) --- F1: Glow NS Holdings, LLC is controlled by Glow NS Intermediate Holdings, LLC, its sole member. Glow NS Intermediate Holdings LLC is controlled by Glow Aggregator, LLC, its sole member. Glow Aggregator, LLC is controlled by AE Industrial Partners Fund II, L.P., its managing member. AE Industrial Partners Fund II, L.P. is controlled by AE Industrial Partners Fund II GP, LP ("AE Fund II GP"), its general partner. Glow Holdings Aggregator, LLC is controlled by AE Co-Investment Partners Fund III-F, LP, its managing member. AE Co-Investment Partners Fund III-F, LP is controlled by AE Industrial Partners Fund III GP, LP ("AE Fund III GP"), its general partner. F2: (Continued from footnote 1) AE Fund II GP and AE Fund III GP are each managed by each entity's respective general partner, AeroEquity GP, LLC. AeroEquity GP, LLC is controlled by its managing members, Michael Greene and David Rowe. Messrs. Greene and Rowe make all voting and investment decisions with respect to the securities held by AE Industrial Partners. Each of the entities and individuals named above disclaims beneficial ownership of the securities held by AE Industrial Partners, except to the extent of its pecuniary interest therein. F3: Held by Glow NS Holdings, LLC. F4: Held by Glow Holdings Aggregator, LLC. Shares previously reported as held by Glow B Holdings, LLC, Glow C Holdings, LLC, Glow D Holdings, LLC and AE Co-Investment Partners Fund III-F, LP were contributed to Glow Holdings Aggregator, LLC in an exempted transaction pursuant to Rule 16a-13. F5: Held by David Rowe. --- Signature --- /s/ AeroEquity GP, LLC /s/ Michael Greene, Authorized Signatory (2026-06-03)