Director Marc Weiser granted 3,334 RSUs at Firefly Aerospace (FLY)

Rhea-AI Filing Summary

Firefly Aerospace Inc. director Marc Allen Weiser reported an equity award and updated share holdings. He received a grant of 3,334 restricted stock units (RSUs) of common stock at $0.00 per share under the company’s 2025 Omnibus Incentive Plan. These RSUs vest on August 8, 2026, if he continues to serve the company through that date. After this award, he directly holds 3,334 shares. The filing also reports indirect holdings of common stock through BGW Ventures IV, LP and RPM Ventures IV, L.P., where he exercises voting and dispositive control but disclaims beneficial ownership beyond his pecuniary interest.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Weiser Marc Allen

(Last) (First) (Middle)

C/O FIREFLY AEROSPACE INC.

1320 ARROW POINT DRIVE #109

(Street)

CEDAR PARK TX 78613

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Firefly Aerospace Inc. [ FLY ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/25/2026		A		3,334(1)	A	$0	3,334	D
Common Stock								2,840,043	I	See footnotes(2)(4)
Common Stock								1,205,209	I	See footnotes(3)(4)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents restricted stock units ("RSUs") granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. The RSUs vest on August 8, 2026, subject to the reporting person's continued service to the Issuer through the vesting date.

2. Consists of shares of common stock held by BGW Ventures IV, LP over which the reporting person exercises voting and dispositive control.

3. Consists of shares of common stock held by RPM Ventures IV, L.P. over which the reporting person exercises voting and dispositive control.

4. Each of the foregoing entities and the reporting person disclaims beneficial ownership of the shares reported as indirectly owned by the reporting person herein, except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such shares for purposes of Section 16 or for any other purpose.

	/s/ David Wheeler, Attorney-in-fact	02/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What did Firefly Aerospace (FLY) director Marc Weiser report on this Form 4?

Marc Weiser reported receiving 3,334 restricted stock units of Firefly Aerospace common stock for no cash cost. The filing also updates his indirect holdings through investment partnerships where he has voting control but disclaims full beneficial ownership.

How many RSUs did Marc Weiser receive from Firefly Aerospace (FLY) and when do they vest?

Marc Weiser received 3,334 restricted stock units (RSUs) under Firefly Aerospace’s 2025 Omnibus Incentive Plan. These RSUs vest on August 8, 2026, provided he continues to serve the company through that vesting date.

Did Marc Weiser buy or sell Firefly Aerospace (FLY) shares in this Form 4?

The Form 4 shows an equity award, not an open-market buy or sell. He acquired 3,334 RSUs at $0.00 per share as a grant, and the filing updates his direct and indirect ownership positions.

What indirect Firefly Aerospace (FLY) holdings are associated with Marc Weiser?

The filing reports indirect holdings of Firefly Aerospace common stock through BGW Ventures IV, LP and RPM Ventures IV, L.P.. Weiser exercises voting and dispositive control over these entities but disclaims beneficial ownership except for his pecuniary interest.

What plan governs Marc Weiser’s RSU grant at Firefly Aerospace (FLY)?

The RSU grant of 3,334 units was made under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. This plan provides equity-based compensation, with the reported RSUs vesting on August 8, 2026, subject to continued service.

How many Firefly Aerospace (FLY) shares does Marc Weiser directly hold after this filing?

After the reported award, Marc Weiser directly holds 3,334 shares of Firefly Aerospace common stock. Additional shares are held indirectly through BGW Ventures IV, LP and RPM Ventures IV, L.P., where he has control but limited beneficial ownership.