0001213900-26-010957 Sample Contracts

EMPLOYMENT AGREEMENT
Employment Agreement • February 3rd, 2026 • Brag House Holdings, Inc. • Finance services • New York

WHEREAS the Executive is currently employed by Brag House Holdings Inc. (the parent company of the Employer, “Parent” or “Purchaser”), under an employment agreement dated June 15, 2024 (the “Prior Agreement”);

REGISTRATION RIGHTS AGREEMENT
Registration Rights Agreement • February 3rd, 2026 • Brag House Holdings, Inc. • Finance services

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) dated as of December 4, 2025 is made by and between YA II PN, LTD., a Cayman Islands exempt limited company (the “Investor”), and House of Doge Inc., a Texas corporation (the “HOD”) and Brag House Holdings, Inc., a Delaware corporation (the “Company”). The Investor, HOD and the Company may be referred to herein individually as a “Party” and collectively as the “Parties.” For purposes of this Agreement, applicable references to the “Company” shall include, after the consummation of the merger pursuant to Merger Agreement (the “BCA”) dated as of October 12, 2025 by and among the Company, Brag House Merger Sub, Inc., a Delaware corporation and direct wholly owned subsidiary of the Company and HOD, pursuant to which HOD will merge with and into Merger Sub, with HOD continuing as the surviving entity and a wholly owned subsidiary of the Company, HOD.

GLOBAL GUARANTY AGREEMENT
Global Guaranty Agreement • February 3rd, 2026 • Brag House Holdings, Inc. • Finance services • New York

This Guaranty (as amended, amended and restated, supplemented or otherwise modified from time to time, this “Guaranty”) is made as of December 4, 2025, by (a) Brag House Inc., a Delaware corporation, Brag House Ltd., a company incorporated pursuant to the laws of the United Kingdom, and Brag House Merger Sub, Inc., a Delaware corporation (collectively, the “Brag House Guarantors”), (b) Dogecoin Ventures, Inc., a Texas corporation, The Official Dogecoin Treasury and Reserve Inc., a Texas corporation, and House of Doge Canada Inc., a corporation organized under the laws of Canda (collectively, the “Doge Guarantors”; and the Brag House Guarantors, the Doge Guarantors and any subsequent party that may join this Guaranty, collectively, the “Guarantors” and, each individually, a “Guarantor”, in favor of (c) YA II PN, LTD. (“YA II” or the “Creditor”), with respect to all obligations of BRAG HOUSE HOLDINGS, INC., a Delaware corporation (“Pubco”) and HOUSE OF DOGE INC., Texas corporation (“HOD”

SUBORDINATION AND INTERCREDITOR AGREEMENT
Subordination and Intercreditor Agreement • February 3rd, 2026 • Brag House Holdings, Inc. • Finance services

THIS SUBORDINATION AND INTERCREDITOR AGREEMENT (as amended, restated, supplemented, or otherwise modified from time to time, this “Agreement”) is entered into as of December 4, 2025 (the “Effective Date”), by and between YA II PN, LTD., a Cayman Islands exempt limited company, in its capacity as noteholder and as secured party under the Senior Note Documents (as defined herein), including its successors and assigns in such capacity from time to time (“Senior Noteholder”), and BRAG HOUSE HOLDINGS, INC., a Delaware corporation (“Pubco”), in its capacity as noteholder and as secured party under the Subordinated Note Documents (as defined below), including its successors and assigns in such capacity from time to time (“Subordinated Noteholder”); and acknowledged by the signatories to the Acknowledgement Page attached hereto.

VOTING AND SUPPORT AGREEMENT
Voting and Support Agreement • February 3rd, 2026 • Brag House Holdings, Inc. • Finance services • Delaware

THIS VOTING AND SUPPORT AGREEMENT (this “Agreement”) dated December 11, 2025, is entered into between HOUSE OF DOGE INC., a Texas corporation (the “Company”), BRAG HOUSE HOLDINGS, INC., a Delaware corporation (“Parent”), and ____________________ (the “Shareholder”), with respect to its shares of common stock, $0.0001 par value per share, of Parent (the “Parent Common Stock”), and shares of Class B Preferred Stock of Parent, $0.0001 par value per share (the “Parent Preferred Stock” and, together with the Parent Common Stock, the “Parent Stock”). Parent, the Shareholder, and the Company may each be referred to hereinafter as a “Party” and, collectively, as the “Parties.”

PLEDGE AGREEMENT
Pledge Agreement • February 3rd, 2026 • Brag House Holdings, Inc. • Finance services

This PLEDGE AGREEMENT, dated as of December 4, 2025 (the “Effective Date”) (as amended, amended and restated, supplemented or otherwise modified from time to time in accordance with the provisions hereof, this “Agreement”), made by and among BRAG HOUSE HOLDINGS, INC., a Delaware corporation (“Pubco”) and DOGECOIN VENTURES, INC., a Texas corporation (“Dogecoin”; and, Dogecoin, together with Pubco, collectively the “Grantors” and, each individually, a “Grantor”), in favor of YA II PN, LTD., a Cayman Islands exempt limited company, as pledgee, assignee, and secured party (in such capacities and together with any successors in such capacities, the “Secured Party”).