Browse EX-10 agreements

PRIVATE UNIT SUBSCRIPTION AGREEMENT

BETWEEN THE REGISTRANT AND THE SPONSOR

Alpex Acquisition Corporation

300 Delaware Ave. Suite 210 #494

Wilmington, DE 19801

[__], 2026

Ladies and Gentlemen:

Alpex Acquisition Corporation (the “Company”), a blank check company formed for the purpose of acquiring one or more businesses or entities (a “Business Combination”), intends to register its securities under the Securities Act of 1933, as amended (“Securities Act”), in connection with its initial public offering (“IPO”), pursuant to a registration statement on Form S-1 (File No. 333-294978) (“Registration Statement”).

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REGISTRATION RIGHTS AGREEMENT

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is entered into as of the [__], 2026, by and among Alpex Acquisition Corporation, a Cayman Islands company (the “Company”) and the undersigned parties listed under Investor on the signature page hereto (each, an “Investor” and collectively, the “Investors”).

WHEREAS, the Investors and the Company desire to enter into this Agreement to provide the Investors with certain rights relating to the registration of the securities held by them as of the date hereof; and

NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1. DEFINITIONS. The following capitalized terms used herein have the following meanings:

“Agreement” means this Agreement, as amended, restated, supplemented, or otherwise modified from time to time.

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INVESTMENT MANAGEMENT TRUST AGREEMENT

This Investment Management Trust Agreement (this “Agreement”) is made effective as of [●], 2026, by and between Alpex Acquisition Corporation, a Cayman Islands corporation (the “Company”), and Equiniti Trust Company, LLC, a New York limited liability trust company (the “Trustee”).

WHEREAS, the Company’s registration statement on Form S-1 (File No. 333-294978) (the “Registration Statement”) and prospectus (the “Prospectus”), for its initial public offering of the Company’s units (the “Units”), each of which consists of one share of the Company’s Class A ordinary shares, par value $0.0001 per share (the “Ordinary Shares”), one warrant, each whole warrant entitling the holder to purchase one Ordinary Share (the “Warrants”), and one right to receive one-fourth (1/4) of an Ordinary Share upon the consummation of an initial business combination (such initial public offering hereinafter referred to as the “Offering”), has been declared effective as of the date hereof by the U.S. Securities and Exchange Commission

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[__], 2026

Alpex Acquisition Corporation

300 Delaware Ave. Suite 210 #494

Wilmington, DE 19801

Re: Initial Public Offering

Ladies and Gentlemen:

This letter is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between Alpex Acquisition Corporation , a Cayman Islands company (the “Company”), and D. Boral Capital LLC , as representative (the “Representative”) of the several underwriters named on Schedule A thereto (the “Underwriters”), relating to an underwritten initial public offering (the “IPO”) of the Company’s units (the “Units”), each comprised of one Class A ordinary share of the Company, par value $0.0001 per share (the “Ordinary Share”), one redeemable warrant, with each whole warrant to acquire one Ordinary Share (the “Warrants”), and one right to receive one-fourth (1/4) of one Ordinary Share (the “Rights”). Certain capitalized terms used herein are defined in paragraph 14 hereof.

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XOMA ROYALTY CORPORATION

2026 EMPLOYEE STOCK PURCHASE PLAN

Purpose. The purpose of the XOMA Royalty Corporation 2026 Employee Stock Purchase Plan (the “Plan”) is to provide Employees of the Company and its Designated Subsidiaries with an opportunity to purchase Common Stock through accumulated payroll deductions. It is the intention of the Company to have the Plan qualify as an “employee stock purchase plan” under Section 423 of the Code and the applicable regulations thereunder. The provisions of the Plan, accordingly, shall be construed so as to extend and limit participation in a manner consistent with the requirements of that section of the Code.

Definitions. As used herein, the following definitions shall apply:

(a) “Administrator” means either the Board or a committee of the Board that is responsible for the administration of the Plan as is designated from time to time by resolution of the Board.

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XOMA ROYALTY CORPORATION

AMENDED AND RESTATED

2010 LONG TERM INCENTIVE AND STOCK AWARD PLAN

1. Purposes.

The XOMA Royalty Corporation Amended and Restated 2010 Long Term Incentive and Stock Award Plan (the “Plan”) was originally adopted as the XOMA Corporation 2010 Long Term Incentive and Stock Award Plan, effective as of July 21, 2010 (the “Original Effective Date”) and was most recently amended and restated effective as of May 21, 2025. The Plan, as amended and restated herein, is effective as of May 21, 2026 (the “Effective Date”), subject to approval by the Company’s stockholders.

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Exhibit 10.1

SECOND AMENDMENT

TO THE

MOMENTUS INC.

2021 EQUITY INCENTIVE PLAN

THIS SECOND AMENDMENT TO THE MOMENTUS INC. 2021 EQUITY INCENTIVE PLAN (this “Amendment”) is effective as of May 19, 2026. Capitalized terms used and not defined herein shall have the meanings ascribed to them in the Plan (as defined below), and all section references shall refer to the Plan.

RECITALS

WHEREAS, Momentus Inc. (the “Company”) currently awards long-term compensation to certain non‑employee directors, employees, and consultants under its 2021 Equity Incentive Plan, as amended by that certain First Amendment dated as of May 19, 2025 (as amended, the “Plan”);

WHEREAS, the Plan reserves 60,260 shares of Class A common stock, on a split-adjusted basis, for issuance in connection with awards granted thereunder;

WHEREAS, the Company desires to amend the Plan to increase the number of shares of Class A common stock reserved for issuance under the Plan by 500,000 shares;

WHEREAS, this Amendment requires the approval of the Company’s stockholders;

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May     , 2026

FortuneX Acquisition Corp.

1185 6th Avenue, Suite 304

New York, NY 10036

Ladies and Gentlemen:

FortuneX Acquisition Corp. (the “Company”), a blank check company formed for the purpose of entering into a merger, capital stock exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination with one or more businesses or entities (a “Business Combination”), intends to register its securities under the Securities Act of 1933, as amended (the “Securities Act”), in connection with its initial public offering (“IPO”). The Company currently anticipates selling units (“Units”) in the IPO, each comprised of one ordinary share, par value $0.0001 per share, of the Company (“Ordinary Share(s)”) and one-half of one redeemable warrant (“Warrant”), with each whole Warrant entitling the holder thereof to purchase one Ordinary Share at a price of $11.50 per share.

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REGISTRATION RIGHTS AGREEMENT

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of [ ], 2026, is made and entered into by and among FortuneX Acquisition Corporation, a Cayman Islands exempted company (the “Company”) and FortuneX Investment Partners Limited, a Cayman Islands exempted company (the “Sponsor”)(the Sponsor together with any other parties listed on the signature pages hereto and any person or entity who hereafter becomes a party to this Agreement pursuant to Section5.2 of this Agreement, being referred to herein as a “Holder” and collectively as the “Holders”).

RECITALS

WHEREAS, the Sponsor and certain other Holders (if any) collectively own an aggregate of 3,694,429 Ordinary Shares (the “Founder Shares”), par value $0.0001 per share (the “Ordinary Shares”), of the Company, issued prior to the date hereof in a private placement and pursuant to certain transfers;

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Investment Management Trust Agreement

This Investment Management Trust Agreement (this “Agreement”) is made effective as of [       ], 2026 by and between FortuneX Acquisition Corporation, a Cayman Islands exempted company (the “Company”) and Continental Stock Transfer & Trust Company, a New York corporation (the “Trustee”).

WHEREAS, the Company’s registration statement on Form S-1, No. 333-295053 (the “Registration Statement”), for its initial public offering of Company’s units (the “Units”), each of which consists of one ordinary share, par value $0.0001 per share (the “Ordinary Shares”), and one-half of one redeemable warrant, has been declared effective as of the date hereof by the Securities and Exchange Commission (such initial public offering hereinafter referred to as the “Offering”); and

WHEREAS, the Company has entered into an Underwriting Agreement (the “Underwriting Agreement”) with Polaris Advisory Partners LLC, (the “Representative”) acting as the representative of the underwriters in the Offering; and

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[     ], 2026

FortuneX Acquisition Corporation

1185 6th Avenue, Suite 304

New York, NY 10036

Polaris Advisory Partners

a division of Kingswood Capital Partners LLC

5900 Balcones Drive, Suite 100

Austin, TX 78731

Re:	Initial Public Offering

Ladies and Gentlemen:

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between FortuneX Acquisition Corporation, a Cayman Islands exempted company (the “Company”), and Polaris Advisory Partners, (the “Representative”) as representative of the underwriters (the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”) of the Company’s units (the “Units”), each comprised of one ordinary share of the Company, $0.0001 par value per share (the “Shares”), and one-half of one redeemable warraith each whole warrant entitling the holder thereof to purchase one ordinary share at a price of

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Exhibit 10.2

REGISTRATION RIGHTS AGREEMENT

This REGISTRATION RIGHTS AGREEMENT (this "Agreement") is made and entered into as of May 22, 2026 by and between Starfighters Space, Inc., a Delaware corporation (the "Company"), and each of the investors identified on the signature page hereto (including its respective successors and assigns and any affiliate or permitted transferee who is a subsequent holder of Registrable Securities (as defined below), the "Investors" and each an "Investor").

WHEREAS, Company and Investor are parties to the Securities Purchase Agreement, dated as of May 22, 2026, between the Company and each of the Investors identified on the signature pages thereto (the "Purchase Agreement").  Capitalized terms used herein have the respective meanings ascribed thereto in the Purchase Agreement unless otherwise defined herein.

The parties hereby agree as follows:

1. Certain Definitions.

As used in this Agreement, the following terms shall have the following meanings:

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