0001104659-26-093056 Sample Contracts

Portions of this exhibit, indicated by [***], have been omitted in accordance with Item 601(b)(2) of Regulation S-K. The omitted information is (i) not material and (ii) treated by the Registrant as private or confidential. EQUITY PURCHASE AGREEMENT...
Equity Purchase Agreement • August 10th, 2026 • Archer Aviation Inc. • Aircraft • Delaware

THIS EQUITY PURCHASE AGREEMENT is made as of August 9, 2026, by and among (a) The Boeing Company, a Delaware corporation (“Seller”), (b) Wisk Aero LLC, a Delaware limited liability company (“Wisk”), (c) Insitu, Inc., a Washington corporation (“Insitu US”), (d) Insitu Pacific Pty Ltd, a proprietary company incorporated under the laws of the Commonwealth of Australia (“Insitu Pacific”), (e) Wisk Australia Pty Ltd, a proprietary company incorporated under the laws of the Commonwealth of Australia (“Wisk Australia”), (f) Boeing Emirates Ltd, a private company limited by shares incorporated under the laws of Abu Dhabi Global Market (“Insitu Emirates”, and collectively with Wisk, Insitu US, Insitu Pacific and Wisk Australia, the “Companies” and, each individually, a “Company”), and (g) Archer Aviation Inc., a Delaware corporation (“Buyer”). Seller and Buyer are referred to collectively herein as the “Parties” and each individually as a “Party.”

FORWARD EQUITY PURCHASE AGREEMENT
Forward Equity Purchase Agreement • August 10th, 2026 • Archer Aviation Inc. • Aircraft • New York

This Forward Equity Purchase Agreement (this “Agreement”) is entered into as of [●], 2026 (the “Effective Date”), by and between Archer Aviation Inc., a Delaware corporation (the “Company”), and The Boeing Company, a company organized and existing under the laws of Delaware (the “Purchaser”).

ARCHER AVIATION INC.
Letter Agreement • August 10th, 2026 • Archer Aviation Inc. • Aircraft

Reference is made to (i) that certain Equity Purchase Agreement (the “Purchase Agreement”), dated as of August 9, 2026, between Archer Aviation Inc., a Delaware corporation (the “Buyer”), and The Boeing Company., a Delaware corporation (the “Seller”), (ii) the First Warrant to Purchase Shares, dated as of [●], 2026, by and between the Buyer and the Seller (the “First Warrant”), and (iii) the Second Warrant to Purchase Shares, dated as of [●], 2026, by and between the Buyer and the Seller (the “Second Warrant”, and together with the First Warrant, the “Warrants”). This letter agreement (this “Letter Agreement”) sets forth the additional agreements between the Buyer and the Seller, including with respect to certain additional terms applicable to the Warrants, and shall not merge with or supersede the Warrants. In the event of any inconsistency between the terms and conditions of this Letter Agreement and the Warrants, the terms of this Letter Agreement shall control. Capitalized terms us

REGISTRATION RIGHTS AGREEMENT
Registration Rights Agreement • August 10th, 2026 • Archer Aviation Inc. • Aircraft • New York

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made as of [●], 2026, by and between Archer Aviation Inc., a Delaware corporation (the “Company”), and The Boeing Company, a Delaware corporation (“Seller” and together with the Company, the “Parties”). Any term used but not defined herein will have the meaning ascribed to such term in that certain Equity Purchase Agreement, dated August 9, 2026, by and among the Company, Seller and the other parties thereto (the “Purchase Agreement”).