Firefly Aerospace (FLY) director granted 3,334 RSUs vesting in 2026

Rhea-AI Filing Summary

Emerson Christopher Plummer IV reported acquisition or exercise transactions in this Form 4 filing.

Firefly Aerospace Inc. director Emerson Christopher Plummer IV reported an equity award in the form of 3,334 restricted stock units (RSUs), representing common stock of the company. The RSUs were granted at $0.00 per unit under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan.

The filing states that these RSUs will vest on August 8, 2026, provided Plummer continues to serve the company through that date. Following this grant, he holds 3,334 shares/RSUs in direct ownership as reported in the filing.

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^*

Emerson Christopher Plummer IV

(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

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.

	/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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Firefly Aerospace (FLY) report for Emerson Christopher Plummer IV?

Firefly Aerospace reported that director Emerson Christopher Plummer IV received 3,334 restricted stock units. These RSUs represent common stock and were granted at $0.00 per unit under the 2025 Omnibus Incentive Plan as part of his director compensation.

How many shares or units did the Firefly Aerospace (FLY) director acquire in this Form 4?

The director acquired 3,334 restricted stock units, each representing one share of Firefly Aerospace common stock. This entire amount was reported as directly owned following the grant, reflecting an equity-based compensation award rather than an open-market stock purchase.

When do the RSUs granted to the Firefly Aerospace (FLY) director vest?

The RSUs granted to the Firefly Aerospace director vest on August 8, 2026. Vesting is conditioned on his continued service to the company through that date, meaning the units are earned over time rather than being immediately unrestricted.

Was there a purchase price for the Firefly Aerospace (FLY) RSU grant?

No cash purchase price was involved; the 3,334 restricted stock units were granted at $0.00 per unit. This indicates an equity award provided as compensation, not a transaction where the director bought shares in the open market.

Under which plan were the Firefly Aerospace (FLY) RSUs granted to the director?

The 3,334 restricted stock units were granted under the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan. This plan is used to provide equity-based compensation to eligible participants, including directors, aligning their interests with long-term shareholder value.

What is the ownership type of the RSUs reported by the Firefly Aerospace (FLY) director?

The Form 4 classifies the 3,334 restricted stock units as directly owned by the director. The filing does not reference any intermediary entities or trusts, indicating the award is held in his direct beneficial ownership according to the reported data.