Exhibit 10.1

December 9, 2025

Ramon Sanchez

Dear Ramon:

This letter agreement (this “Agreement”) formalizes the terms and conditions of your employment with Firefly Aerospace Inc. (“Firefly” or the “Company”) beginning on December 22, 2025 (the “Start Date”) as our Chief Operating Officer. This offer is contingent upon your providing us with documentation establishing your eligibility to work in the United States as required by federal law and a background check satisfactory to the Company, which will be completed no later than the Start Date. In this capacity you will report to the Chief Executive Officer.

This Agreement outlines the core important aspects of your employment with Firefly, an “at-will” employer. Further information about our employment policies and procedures will be available for your review prior to your execution of this Agreement.

Compensation

Employee Benefits – Group Plans. As a regular full-time employee, you will have the opportunity to participate in the standard benefit plans that Firefly offers to other similarly situated employees, subject to the terms and provisions of such plans including applicable waiting periods. Details about these benefits will be made available for your review. Firefly offers medical, dental, and vision insurance and 401k. With the exception of the employment at-will policy discussed below, the Company may, from time to time in its sole discretion, modify or eliminate its policies and the benefits offered to employees.

Employment Conditions. The Company is offering you employment because of your experience and personal skills, and not due to your potential or actual knowledge of a former employer’s or other person’s or entity’s confidential information or intellectual property, including trade secrets. Should you accept this offer, you shall not retain, make use of or share any such information with the Company. You certify by accepting this employment that you do not retain, and will not make use of or share, any such information with the Company, and that you can adequately perform your job without utilizing such information.

Likewise, as an employee of the Company, you will become knowledgeable about the Company’s confidential and trade secret information relating to operations, products, and services. To protect the Company’s interests, your acceptance of this offer and commencement of employment with the Company are contingent upon your execution and delivery to the Company of the Company’s Employee Proprietary Information Agreement (as mutually amended or superseded from time to time, the “EPIA”), prior to or on your Start Date. The EPIA provides for the arbitration of all disputes arising out of your employment and you understand that the Company is offering you employment in exchange for the mutual promise to arbitrate disputes described therein. Because the EPIA is one of the most important documents you will sign in connection with your employment with Firefly, we trust you will review it carefully and let us know if you have any questions or concerns regarding its terms.

Restrictive Covenants. The EPIA also contains certain restrictive covenants prohibiting you from soliciting the Company’s employees, interfering with the Company’s customers, and competing with the Company, each on the terms and conditions set forth in the EPIA (collectively, including the terms and conditions thereof, the “Restrictive Covenants”).

By accepting this Agreement, you acknowledge that the Restrictive Covenants are reasonable and necessary to protect the Company’s legitimate business interests and that the terms and conditions of the Restrictive Covenants are fair and reasonable.

Right to Work. Federal immigration law requires that you provide the Company with documentary evidence of your identity and eligibility for employment in the United States, and your employment offer is made contingent on your ability to work in the United States. Accordingly, please bring appropriate verification or authorization to work (e.g., U.S. passport or driver’s license and Social Security card) on your first day.

Verification of Information. This offer and your employment are also contingent upon satisfactory results from your general background check and reference check, subject to applicable law. You have a right to review copies of any public records obtained by the Company in conducting this verification process unless you check the box below the signature line.

EEO Statement. The Company expects all employees to adhere to the Company’s standards of professionalism, loyalty, integrity, honesty, reliability, and respect for all. Please note that the Company is an equal opportunity employer. The Company does not permit, and will not tolerate, the unlawful discrimination or harassment of any employee, consultant, or related third party on the basis of sex, race, color, religion, age, national origin or ancestry, marital status, veteran status, mental or physical disability or medical condition, sexual orientation, pregnancy, childbirth or related medical condition, or any other status protected by applicable law.

At-Will Employment. Please understand that this Agreement does not constitute a contract of employment for any specific length of time, but instead creates an “at will” relationship which may be terminated with or without cause and with or without notice at any time by you or the Company, subject to the rights and benefits set forth in this Agreement. Further, your continued employment as well as your participation in any benefit programs does not assure you of continuing employment with the Company. This policy of at-will employment is the entire agreement as to the duration of your employment and may only be modified in an express written agreement approved by the Board and signed by an officer of the Company.

Miscellaneous. This Agreement, and any documents referenced herein, sets forth the entire terms of your employment with the Company and supersedes any prior representations or agreements, whether written or oral. This Agreement will be governed by the laws of Texas, without regard to its conflict of laws provisions.

Amendment. This Agreement may not be modified or amended except by a written agreement signed by the Chief People Officer on behalf of Firefly.

On behalf of Firefly, we are delighted to be able to extend this offer to you and are enthusiastic about your joining the Company. Unless earlier withdrawn, this offer will remain open until Friday December 12, 2025. To indicate your acceptance of the Company’s offer, please sign and date this letter in the space provided below and return it to me. You may also retain a copy for your records. The EPIA will be sent to you for electronic signature. Please ensure that you promptly execute it as well.

ACCEPTED AND AGREED:

I have read this letter agreement and agree to the terms set forth in this letter, including affirming the Employee Proprietary Information Agreement.

Exhibit 10.2

FORM

FIREFLY AEROSPACE INC.

2025 OMNIBUS INCENTIVE PLAN

PERFORMANCE STOCK UNIT GRANT NOTICE

Pursuant to the terms and conditions of the Firefly Aerospace Inc. 2025 Omnibus Incentive Plan, as amended from time to time (the “Plan”), Firefly Aerospace Inc., a Delaware corporation (the “Company”), hereby grants to the individual listed below (“you” or the “Participant”) the number of Performance Stock Units (the “PSUs”) set forth below. This award of PSUs (this “Award”) is subject to the terms and conditions set forth herein and in the Performance Stock Unit Agreement attached hereto as Exhibit A (the “Agreement”), the restrictive covenants attached hereto as Exhibit B (the “Restrictive Covenants”) and the Plan, each of which is incorporated herein by reference. Capitalized terms used but not defined herein shall have the meanings set forth in the Plan.

By your signature below, you agree to be bound by the terms and conditions of the Plan, the Agreement and this Performance Stock Unit Grant Notice (this “Grant Notice”). You acknowledge that you have reviewed the Agreement, the Plan and this Grant Notice in their entirety and fully understand all provisions of the Agreement, the Plan and this Grant Notice, and have had an opportunity to obtain the advice of counsel prior to executing this Grant Notice. You hereby agree to accept as binding, conclusive and final all decisions or interpretations of the Committee regarding any questions or determinations arising under the Agreement, the Plan or this Grant Notice. This Grant Notice may be executed in one or more counterparts (including portable document format (.pdf) and facsimile counterparts), each of which shall be deemed to be an original, but all of which together shall constitute one and the same agreement.

Notwithstanding any provision of this Grant Notice or the Agreement, if you have not executed and delivered to the Company this Grant Notice within 90 days following the Date of Grant, then this Award will terminate automatically without any further action by the Company and the PSUs will be forfeited without further notice and at no cost to the Company.

[Signature Page Follows]

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IN WITNESS WHEREOF, the Company has caused this Grant Notice to be executed by an officer thereunto duly authorized, and the Participant has executed this Grant Notice, effective for all purposes as provided above.

EXHIBIT A

PERFORMANCE STOCK UNIT AGREEMENT

This Performance Stock Unit Agreement (together with the Grant Notice to which this Agreement is attached and Exhibit B, this “Agreement”) is made as of the Date of Grant set forth in the Grant Notice to which this Agreement is attached by and between Firefly Aerospace Inc., a Delaware corporation (the “Company”), and [•] (the “Participant”). Capitalized terms used but not specifically defined herein shall have the meanings specified in the Plan or the Grant Notice.

1. Award. In consideration of the Participant’s past and/or continued employment with, or service to, the Company or an Affiliate and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, effective as of the Date of Grant set forth in the Grant Notice (the “Date of Grant”), the Company hereby grants to the Participant the number of PSUs set forth in the Grant Notice on the terms and conditions set forth in the Grant Notice, this Agreement and the Plan, which is incorporated herein by reference as a part of this Agreement. In the event of any inconsistency between the Plan and this Agreement, the terms of the Plan shall control. To the extent vested, each PSU represents the right to receive one Share, subject to the terms and conditions set forth in the Grant Notice, this Agreement and the Plan. Unless and until the PSUs have become vested in the manner set forth in Exhibit C, subject to Sections 2 and 5 of the Agreement, as applicable, the Participant will have no right to receive any Shares or other payments in respect of the PSUs. Prior to settlement of this Award, the PSUs and this Award represent an unsecured obligation of the Company, payable only from the general assets of the Company.

2. Vesting of PSUs.

(a) Except as otherwise set forth in Sections 2 and 5, the PSUs shall vest in accordance with the vesting schedule set forth on Exhibit C. Unless and until the PSUs have vested in accordance with such vesting schedule, the Participant will have no right to receive any dividends or other distribution with respect to the PSUs. Upon the Participant’s Termination of Service prior to the end of the Performance Period (but after giving effect to any accelerated vesting pursuant to this Section 2), any unvested PSUs (and all rights arising from such PSUs and from being a holder thereof) will terminate automatically without any further action by the Company and will be forfeited without further notice and at no cost to the Company. [Upon the Participant’s Termination of Service, the Participant will retain any vested PSUs, which will be settled as set forth in Section 4.]

(b) Notwithstanding anything in the Grant Notice, this Agreement or the Plan to the contrary, subject to Section 10:

(i) upon the Participant’s Termination of Service due to the Participant’s death or Disability, the Pro-Rated Amount of the Target Number of PSUs, shall immediately become vested as of the date of such Termination of Service and shall not be subject to the achievement of the conditions in Exhibit C;

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(ii) upon the Participant’s Termination of Service by the Company or an Affiliate without Cause, a Pro-Rated Amount of the Target Number of PSUs shall immediately become vested as of the date of such Termination of Service; provided, that such Termination of Service constitutes a “separation of service” within the meaning of Section 409A of the Code.

(c) For purposes of this Agreement:

(i) “Pro-Rated Amount” means the product of (1) the Target Number of PSUs granted pursuant to this Award and (2) a fraction, the numerator of which is the total number of calendar days that have elapsed from the commencement of the Performance Period through the date of the Termination of Service and the denominator of which is the total number of calendar days in the Performance Period.

3. Dividend Equivalent Rights. In the event that the Company declares and pays a regular cash dividend in respect of its outstanding Shares (which, for clarity, does not include any extraordinary cash dividend), and, on the record date for such dividend, the Participant holds PSUs granted pursuant to this Agreement that have not been settled, the Company shall record in a bookkeeping account an amount equal to the cash dividends the Participant would have received if the Participant was the holder of record, as of such record date, of a number of Shares equal to the number of PSUs held by the Participant that have not been settled as of such record date (the “Dividend Equivalent Rights”). The Dividend Equivalent Rights will be subject to the same terms and conditions, including with respect to vesting, forfeiture and transferability, as the underlying PSUs. All amounts, if any, payable in respect of the Dividend Equivalent Rights will be paid to the Participant in cash (or, at the discretion of the Company, in Shares) on or following, but no later than 60 days after, the date the underlying PSU vests. For purposes of clarity, if any of the PSUs are forfeited by the Participant pursuant to the terms of this Agreement, then the Participant shall also forfeit the Dividend Equivalent Rights, if any, accrued with respect to such forfeited PSUs. No interest will accrue on the Dividend Equivalent Rights between the declaration and payment of the applicable dividends and the settlement of the Dividend Equivalent Rights.

4. Settlement of PSUs. Subject to Section 23, as soon as administratively practicable following the vesting of PSUs pursuant to Exhibit C (or Section 2, as applicable), but in no event later than 60 days after such vesting date, the Company shall deliver to the Participant a number of Shares equal to the number of PSUs subject to this Award. All Shares issued hereunder shall be delivered either by delivering one or more certificates for such Shares to the Participant or by entering such Shares in book-entry form, as determined by the Committee in its sole discretion. The value of Shares shall not bear any interest owing to the passage of time. Neither this Section 4 nor any action taken pursuant to or in accordance with this Agreement shall be construed to create a trust or a funded or secured obligation of any kind.

5. Restrictive Covenants.

(a) The Participant acknowledges and agrees that the grant of the PSUs further aligns the Participant’s interests with the Company’s long-term business interests, and as a condition to the Company’s willingness to enter into this Agreement, the Participant agrees to abide by the terms set forth in Exhibit B, which Exhibit B is deemed to be part of this Agreement as if fully set forth herein. The Participant acknowledges and agrees that the Restrictive Covenants are reasonable and enforceable in all respects. By accepting this Award, the Participant agrees to be bound, and promises to abide, by the terms set forth in Exhibit B and expressly acknowledges and affirms that this Award would not be granted to the Participant if the Participant had not agreed to be bound by such provisions.

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(b) Notwithstanding any provision in this Agreement or the Plan to the contrary, in the event the Committee determines that the Participant has failed to abide by any of the terms set forth in Exhibit B or the provisions of any other confidentiality, non-disclosure, non-competition, non-solicitation, non-disparagement or other restrictive covenants in any other agreement by and between the Company or any Affiliate and the Participant, then, in addition to and without limiting the remedies set forth in Exhibit B all PSUs that have not been settled as of the date of such determination (and all rights arising from such PSUs and from being a holder thereof) will terminate automatically without any further action by the Company and will be forfeited without further notice and at no cost to the Company.

6. Tax Withholding. To the extent that the receipt, vesting or settlement of this Award results in compensation income or wages (including via Dividend Equivalent Rights) to the Participant for federal, state, local and/or foreign tax purposes, the Company shall have the authority to deduct or withhold, or require the Participant to remit to the Company, an amount sufficient to satisfy all applicable federal, state, local and foreign taxes (including the employee portion of any Federal Insurance Contributions Act obligation) required by Applicable Law to be withheld with respect to any taxable event arising in connection with this Award. In furtherance of the forgoing, the Participant may make arrangements satisfactory to the Company regarding the payment of any income tax, social insurance contribution or other applicable taxes that are required to be withheld in respect of this Award, which arrangements include (if and to the extent permitted by the Company) the delivery of cash or cash equivalents, Shares (including previously owned Shares (which are not subject to any pledge or other security interest), net settlement, a broker-assisted sale, or other cashless withholding or reduction of the amount of shares otherwise issuable or delivered pursuant to this Award), other property, or any other legal consideration the Committee deems appropriate. If such tax obligations are satisfied through net settlement or the surrender of previously owned Shares, the maximum number of Shares that may be so withheld (or surrendered) shall be the number of Shares that have an aggregate Fair Market Value on the date of withholding or surrender equal to the aggregate amount of such tax liabilities determined based on the greatest withholding rates for federal, state, local and/or foreign tax purposes, including payroll taxes, that may be utilized without creating adverse accounting treatment for the Company with respect to this Award, as determined by the Committee. Any fraction of a Share required to satisfy such tax obligations shall be disregarded and the amount due shall be paid instead in cash to the Participant. The Participant acknowledges that there may be adverse tax consequences upon the receipt, vesting or settlement of this Award or disposition of the underlying Shares and that the Participant has been advised, and hereby is advised, to consult a tax advisor. The Participant represents that the Participant is in no manner relying on the Board, the Committee, the Company or an Affiliate or any of their respective managers, directors, officers, employees or authorized representatives (including attorneys, accountants, consultants, bankers, lenders, prospective lenders and financial representatives) for tax advice or an assessment of such tax consequences.

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7. Non-Transferability. During the lifetime of the Participant, the PSUs may not be sold, pledged, assigned or transferred in any manner other than by will or the laws of descent and distribution, unless and until the Shares underlying the PSUs have been issued, and all restrictions applicable to such Shares have lapsed. Neither the PSUs nor any interest or right therein shall be liable for the debts, contracts or engagements of the Participant or the Participant’s successors in interest or shall be subject to disposition by transfer, alienation, anticipation, pledge, encumbrance, assignment or any other means, whether such disposition be voluntary or involuntary or by operation of law by judgment, levy, attachment, garnishment or any other legal or equitable proceedings (including bankruptcy), and any attempted disposition thereof shall be null and void and of no effect, except to the extent that such disposition is permitted by the preceding sentence.

8. Compliance with Applicable Law. Notwithstanding any provision of this Agreement to the contrary, the issuance of Shares hereunder will be subject to compliance with all applicable requirements of Applicable Law. No Shares will be issued hereunder if such issuance would constitute a violation of any Applicable Law. In addition, Shares will not be issued hereunder unless (a) a registration statement under the Securities Act is in effect at the time of such issuance with respect to the Shares to be issued or (b) in the opinion of legal counsel to the Company, the Shares to be issued are permitted to be issued in accordance with the terms of an applicable exemption from the registration requirements of the Securities Act. The inability of the Company to obtain from any regulatory body having jurisdiction the authority, if any, deemed by the Company’s legal counsel to be necessary for the lawful issuance and sale of any Shares hereunder will relieve the Company of any liability in respect of the failure to issue such Shares as to which such requisite authority has not been obtained. As a condition to any issuance of Shares hereunder, the Company may require the Participant to satisfy any requirements that may be necessary or appropriate to evidence compliance with any Applicable Law and to make any representation or warranty with respect to such compliance as may be requested by the Company.

9. Rights as a Stockholder. The Participant shall have no rights as a stockholder of the Company with respect to any Shares that may become deliverable hereunder unless and until the Participant has become the holder of record of such Shares, and no adjustments shall be made for dividends in cash or other property, distributions or other rights in respect of any such Shares, except as otherwise specifically provided for in the Plan or this Agreement.

10. Execution of Receipts and Releases. Any issuance or transfer of Shares or other property to the Participant or the Participant’s legal representative, heir, legatee or distributee, in accordance with this Agreement shall be in full satisfaction of all claims of such Person hereunder. As a condition precedent to such payment or issuance, the Company may require the Participant or the Participant’s legal representative, heir, legatee or distributee to execute (and not revoke within any time provided to do so) a release and receipt therefor in such form as it shall determine appropriate; provided, that any review period under such release will not modify the date of settlement with respect to vested PSUs.

11. No Right to Continued Employment, Service or Awards. Nothing in the adoption of the Plan, nor the award of the PSUs thereunder pursuant to the Grant Notice and this Agreement, shall confer upon the Participant the right to continued employment by, or a continued service relationship with, the Company or any Affiliate, or any other entity, or affect in any way the right of the Company or any such Affiliate, or any other entity to terminate such employment

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or other service relationship at any time. Unless otherwise provided in a written employment agreement or by Applicable Law, the Participant’s employment by the Company, or any such Affiliate, or any other entity shall be on an at-will basis, and the employment relationship may be terminated at any time by either the Participant or the Company, or any such Affiliate, or other entity for any or no reason whatsoever, with or without Cause or notice. Any question as to whether and when there has been a termination of such employment, and the cause of such termination, shall be determined by the Committee or its delegate, and such determination shall be final, conclusive and binding for all purposes. The grant of the PSUs is a one-time benefit that was made at the sole discretion of the Company and does not create any contractual or other right to receive a grant of Awards or benefits in the future in lieu of Awards in the future, including any adjustment to wages, overtime, benefits or other compensation. Any future Awards will be granted at the sole discretion of the Company.

12. Legal and Equitable Remedies. The Participant acknowledges that a violation or attempted breach of any of the Participant’s covenants and agreements in this Agreement will cause such damage as will be irreparable, the exact amount of which would be difficult to ascertain and for which there will be no adequate remedy at law, and accordingly, the parties hereto agree that the Company and its Affiliates shall be entitled as a matter of right to an injunction issued by any court of competent jurisdiction, restraining the Participant or the affiliates, partners or agents of the Participant from such breach or attempted violation of such covenants and agreements, as well as to recover from the Participant any and all costs and expenses sustained or incurred by the Company or any Affiliate in obtaining such an injunction, including reasonable attorneys’ fees. The parties to this Agreement agree that no bond or other security shall be required in connection with such injunction. Any exercise by either of the parties to this Agreement of its rights pursuant to this Section 12 shall be cumulative and in addition to any other remedies to which such party may be entitled.

13. Notices. All notices and other communications under this Agreement shall be in writing and shall be delivered to the parties at the following addresses (or at such other address for a party as shall be specified by like notice):

If to the Company, unless otherwise designated by the Company in a written notice to the Participant (or other holder):

Firefly Aerospace Inc.

1320 Arrow Point Drive, #109

Cedar Park, Texas 78613

Attn: Chief People Officer

If to the Participant, at the Participant’s last known address on file with the Company.

Any notice that is delivered personally or by overnight courier or telecopier in the manner provided herein shall be deemed to have been duly given to the Participant when it is mailed by the Company or, if such notice is not mailed to the Participant, upon receipt by the Participant. Any notice that is addressed and mailed in the manner herein provided shall be conclusively presumed to have been given to the party to whom it is addressed at the close of business, local time of the recipient, on the fourth day after the day it is so placed in the mail.

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14. Consent to Electronic Delivery; Electronic Signature. In lieu of receiving documents in paper format, the Participant agrees, to the fullest extent permitted by law, to accept electronic delivery of any documents that the Company may be required to deliver (including, but not limited to, prospectuses, prospectus supplements, grant or award notifications and agreements, account statements, annual and quarterly reports and all other forms of communications) in connection with this and any other Award made or offered by the Company. Electronic delivery may be via a Company electronic mail system or by reference to a location on a Company intranet to which the Participant has access, or to the Participant’s account with the Company’s equity plan administrator. The Participant hereby consents to any and all procedures the Company has established or may establish for an electronic signature system for delivery and acceptance of any such documents that the Company may be required to deliver, and agrees that the Participant’s electronic signature is the same as, and shall have the same force and effect as, the Participant’s manual signature.

15. Agreement to Furnish Information. The Participant agrees to furnish to the Company all information requested by the Company to enable it to comply with any reporting or other requirement imposed upon the Company by or under any Applicable Law.

16. Entire Agreement; Amendment. This Agreement constitutes the entire agreement of the parties with regard to the subject matter hereof, and contains all the covenants, promises, representations, warranties and agreements between the parties with respect to the PSUs granted hereby; provided¸ however, that (a) the terms of this Agreement shall not modify and shall be subject to the terms and conditions of any employment, consulting and/or severance agreement between the Company (or an Affiliate or other entity) and the Participant in effect as of the date a determination is to be made under this Agreement; and (b) the terms of Exhibit B are in addition to and complement (and do not replace or supersede) all other agreements and obligations between the Company or any Affiliate and the Participant with respect to confidentiality, non-disclosure, non-competition, non-solicitation, non-disparagement and other restrictive covenants. Without limiting the scope of the preceding sentence, except as provided therein, all prior understandings and agreements, if any, among the parties hereto relating to the subject matter hereof are hereby null and void and of no further force and effect. The Committee may, in its sole discretion, amend this Agreement from time to time in any manner that is not inconsistent with the Plan; provided, however, that except as otherwise provided in the Plan or this Agreement, any such amendment that materially reduces the rights of the Participant shall be effective only if it is in writing and signed by both the Participant and an authorized officer of the Company.

17. Severability and Waiver. If a court of competent jurisdiction determines that any provision of this Agreement is invalid or unenforceable, then the invalidity or unenforceability of such provision shall not affect the validity or enforceability of any other provision of this Agreement, and all other provisions shall remain in full force and effect. Waiver by any party of any breach of this Agreement or failure to exercise any right hereunder shall not be deemed to be a waiver of any other breach or right. The failure of any party to take action by reason of such breach or to exercise any such right shall not deprive the party of the right to take action at any time while or after such breach or condition giving rise to such rights continues.

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18. Company Recoupment of Awards. The Participant’s rights with respect to this Award shall in all events be subject to (a) any right that the Company may have under any Company recoupment or clawback policy or other agreement or arrangement with the Participant, and (b) any right or obligation that the Company may have regarding the clawback of “incentive-based compensation” under Section 10D of the Exchange Act and any applicable rules and regulations promulgated thereunder from time to time by the U.S. Securities and Exchange Commission or any other Applicable Law. The Participant’s acceptance of this Award will constitute the Participant’s acknowledgment of and consent to the Company’s application, implementation and enforcement of any Company recoupment, clawback or similar policy that may apply to the Participant and this Award, whether adopted before or after the Effective Date or Date of Grant (whether though clawback, cancellation, recoupment, rescission, payback, reduction or other similar action in accordance therewith) and any Applicable Law relating to clawback, cancellation, recoupment, rescission, payback or reduction of compensation or other similar action, and the Participant’s agreement that the Company may take any actions that may be necessary to effectuate any such policy or Applicable Law, without further consideration or action.

19. Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE APPLICABLE TO CONTRACTS MADE AND TO BE PERFORMED THEREIN, EXCLUSIVE OF THE CONFLICT OF LAWS PROVISIONS OF DELAWARE LAW.

20. Successors and Assigns. The Company may assign any of its rights under this Agreement without the Participant’s consent. This Agreement will be binding upon and inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth herein and in the Plan, this Agreement will be binding upon the Participant and the Participant’s beneficiaries, executors, administrators and the Person(s) to whom the PSUs may be transferred by will or the laws of descent or distribution.

21. Headings; References; Interpretation. Headings are for convenience only and are not deemed to be part of this Agreement. The words “hereof,” “herein” and “hereunder” and words of similar import, when used in this Agreement, shall refer to this Agreement as a whole, including Exhibit B attached hereto, and not to any particular provision of this Agreement. All references herein to Sections and Exhibit B shall, unless the context requires a different construction, be deemed to be references to the Sections and Exhibit B of this Agreement. The word “or” as used herein is not exclusive and is deemed to have the meaning “and/or.” All references to “including” shall be construed as meaning “including without limitation.” Unless the context requires otherwise, all references herein to a law, agreement, instrument or other document shall be deemed to refer to such law, agreement, instrument or other document as amended, supplemented, modified and restated from time to time to the extent permitted by the provisions thereof. All references to “dollars” or “$” in this Agreement refer to United States dollars. Whenever the context may require, the singular form of nouns and pronouns shall include the plural and vice versa. Neither this Agreement nor any uncertainty or ambiguity herein shall be construed or resolved against any party hereto, whether under any rule of construction or otherwise. On the contrary, this Agreement has been reviewed by each of the parties hereto and shall be construed and interpreted according to the ordinary meaning of the words used so as to fairly accomplish the purposes and intentions of the parties hereto.

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22. Counterparts. The Grant Notice may be executed in one or more counterparts, each of which shall be deemed an original and all of which together shall constitute one instrument. Delivery of an executed counterpart of the Grant Notice by facsimile or portable document format (.pdf) attachment to electronic mail or via electronic acceptance in accordance with Section 14 shall be effective as delivery of a manually executed counterpart of the Grant Notice.

23. Section 409A. The Plan, this Agreement and the PSUs are intended to comply with or be exempt from the applicable requirements of Section 409A of the Code and shall be limited, construed, and interpreted in accordance with such intent. Notwithstanding any contrary provision in the Plan or this Agreement, any payment(s) of “nonqualified deferred compensation” (within the meaning of Section 409A of the Code) that are otherwise required to be made under the Plan or this Agreement to a “specified employee” (as defined under Section 409A of the Code) as a result of such employee’s separation from service (other than a payment that is not subject to Section 409A of the Code) shall be delayed for the first six (6) months following such separation from service (or, if earlier, until the date of death of the specified employee) and shall instead be paid (in a manner set forth in this Agreement) upon expiration of such delay period. Notwithstanding the foregoing, the Company and its Affiliates make no representations that the PSUs provided under this Agreement are exempt from or compliant with Section 409A of the Code and in no event shall the Company or any Affiliate be liable for all or any portion of any taxes, penalties, interest or other expenses that may be incurred by the Participant on account of non-compliance with Section 409A of the Code.

[Remainder of Page Intentionally Blank]

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Exhibit 99.1

Ramon Sanchez Joins Firefly Aerospace as its Chief Operating Officer

Sanchez will oversee a broader scope as Firefly’s COO including the company’s day-to-day operations to support company growth

Cedar Park, Texas, December 11, 2025 – Firefly Aerospace (Nasdaq: FLY), a market leading space and defense technology company, announced it has named Ramon Sanchez as its Chief Operating Officer to drive Firefly’s production scaling and operational execution beginning December 22. In this position, Sanchez will be responsible for the company’s day-to-day operations and ensuring Firefly continues to enhance safety, quality, and reliability in production of launch vehicles, lunar landers, and spacecraft product lines to meet customers’ growing demands.

“Ramon has a proven track record of improving and upscaling complicated space production lines in heavy rockets, advanced missiles, and high-performance spacecraft constellations,” said Jason Kim, CEO. “His operational experience in building cross-functional teams for diverse production systems, people leadership skills, and expertise in quality, engineering, manufacturing, and supply chain supporting end-to-end autonomous spaceflight is a valuable asset for Firefly.”

Sanchez has more than two decades of experience in production operations for commercial, civil, and national security programs during his tenure at Boeing and is also an Army veteran. His extensive experience spans human spaceflight, commercial space, and classified space missions. Programs he stood up and enhanced production rate include heavy launch vehicles, space planes, small to large satellite constellations, advanced integrated space payloads, and precision guided missiles.

“It is an honor to be joining this team of Fireflies, as we partner for success, where safety and quality of our teammates and products are at the forefront of everything we do,” said Ramon Sanchez, incoming Firefly COO. “I look forward to building on the expertise of the team to drive factory stability, production harden systems and execute on the commitments we’ve made to our shareholders and customers.”

Known for his ability to establish and enhance advanced space production lines, Sanchez will lead and ensure greater collaboration across key engineering, manufacturing, and reliability teams to innovate at scale across Firefly’s products and service offerings.

About Firefly Aerospace

Firefly Aerospace is a space and defense technology company that enables government and commercial customers to launch, land, and operate in space – anywhere, anytime. As the partner of choice for responsive space missions, Firefly is the only commercial company to launch a satellite to orbit with approximately 24-hour notice. Firefly is also the only company to achieve a fully successful landing on the Moon. Established in 2017, Firefly’s engineering, manufacturing, and test facilities are co-located in central Texas to enable rapid innovation. The company’s small- to medium-lift launch vehicles, lunar landers, and orbital vehicles are built with common flight-proven technologies to enable speed, reliability, and cost efficiencies for each mission from low Earth orbit to the Moon and beyond. For more information, visit www.fireflyspace.com.

Forward-Looking Statements

This press release contains forward-looking statements (including within the meaning of Section 21E of the United States Securities Exchange Act of 1934, as amended, and Section 27A of the United States Securities Act of 1933, as amended). Statements included in this press release that are not statements of historical fact, including statements about our expectations, beliefs, plans, strategies, objectives, prospects, assumptions or future events or performance, are forward-looking statements. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. In some cases, you can identify forward-looking statements by terminology such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “objective,” “ongoing,” “plan,” “predict,” “project,” “potential,” “should,” “will,” “would,” or the negative of these terms or other comparable terminology.

Various risks that could cause actual results to differ from those expressed by the forward-looking statements included in this press release include, but are not limited to: our failure to manage our growth effectively and our ability to achieve and maintain profitability; the potential for delayed or failed launches, and any failure of our launch vehicles and spacecraft to operate as intended; our inability to manufacture our launch vehicles, landers, or orbital vehicles at a quantity and quality that our customers demand; the hazards and operational risks that our products and service offerings are exposed to, including the wide and unique range of risks due to the unpredictability of space; the market for commercial launch services for small- and medium-sized payloads not achieving the growth potential we expect; adverse impacts from current or future disruptions in U.S. government operations, including as a result of delays or reduction in appropriations or regulatory approvals from our programs, or changes in U.S. government funding and budgetary priorities and spending levels; our dependence on contracts entered into in the ordinary course of business and our dependence on major customers and vendors; a loss of, or default by, one or more of our major customers, or a material adverse change in any such customer’s business or financial condition, could materially reduce our revenues and backlog; uncertain global macro-economic and political conditions, including the implementation of tariffs; the failure of our information technology systems, physical or electronic security protections; the inability to operate Alpha at our anticipated launch rate (including due to potential regulatory delays) or finalize the development and delivery of Eclipse; our failure to establish and maintain important relationships with government agencies and prime contractors; the inability to realize our backlog; evolving government laws and regulations; our ability to remediate the material weakness with respect to our internal control over financial reporting and disclosure controls and procedures; our ability to implement and maintain effective internal control over financial reporting in the future; and other factors set forth in our filings with the Securities and Exchange Commission. You should not place undue reliance on these forward-looking statements, which speak only as of the date stated, or if no date is stated, as of the date of this press release. Actual results may vary from the estimates provided. We undertake no intent or obligation to publicly update or revise any of the estimates and other forward-looking statements made in this announcement, whether as a result of new information, future events or otherwise, except as required by law.

Media Contacts

press@fireflyspace.com