0001185185-26-003872 Sample Contracts

UNDERWRITING AGREEMENT between SOUTHPORT ACQUISITION CORP. II and COHEN & COMPANY CAPITAL MARKETS, A DIVISION OF COHEN & COMPANY SECURITIES, LLC as Representative of the Underwriters Dated: [●], 2026 UNDERWRITING AGREEMENT
Underwriting Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks • New York

The undersigned, Southport Acquisition Corp. II, a Cayman Islands exempted company (the “Company”), hereby confirms its agreement with Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (the “Representative”), and with the other underwriters named on Schedule A hereto (if any), for which the Representative is acting as representative (the Representative and such other underwriters being collectively referred to herein as the “Underwriters” and, each underwriter individually, as an “Underwriter,” provided that, if only the Representative is listed on such Schedule A, any references to Underwriters shall refer exclusively to the Representative) as follows:

REGISTRATION RIGHTS AGREEMENT
Registration Rights Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks • New York

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of [__], 2026, is made and entered into by and among Southport Acquisition Corp. II, a Cayman Islands exempted company (the “Company”), and Southport Acquisition Sponsor II LLC, a Delaware limited liability company (the “Sponsor”), Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (the “Representative”), and the undersigned parties listed under Holder on the signature pages hereto (together with any person or entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 of this Agreement, a “Holder” and collectively the “Holders”).

INVESTMENT MANAGEMENT TRUST AGREEMENT
Investment Management Trust Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks

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

WARRANT AGREEMENT
Warrant Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks • New York

THIS WARRANT AGREEMENT (this “Agreement”), dated as of [__], 2026, is by and between Southport Acquisition Corp. II, a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company, a New York corporation, as warrant agent (in such capacity, the “Warrant Agent,” and also referred to herein as the “Transfer Agent”).

PRIVATE PLACEMENT UNITS PURCHASE AGREEMENT
Private Placement Units Purchase Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks • New York

This PRIVATE PLACEMENT UNITS PURCHASE AGREEMENT (this “Agreement”) is made as of the [__], 2026, by and between Southport Acquisition Corp. II, a Cayman Islands exempted company (the “Company”) and Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (the “Subscriber”).

Southport Acquisition Corp. II Greenwich, CT 06830
Underwriting Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks

This letter (this “Letter Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and among Southport Acquisition Corp. II, a Cayman Islands exempted company (the “Company”) and Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC, as representative (the “Representative” or “CCM”) of the underwriters (the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”), of up to 23,000,000 of the Company’s units (including up to 3,000,000 units which may be purchased to cover over-allotments, if any) (the “Units”), each unit comprised of one Class A ordinary share, par value $0.0001 per share, of the Company (the “Class A Ordinary Shares”) and one-half of one redeemable warrant (each whole warrant, a “Warrant”). Each Warrant entitles the holder thereof to purchase one Class A Ordinary Share at a price of $11.50 per share, subject to adjustment. The Units shal

PRIVATE PLACEMENT UNITS PURCHASE AGREEMENT
Private Placement Units Purchase Agreement • September 8th, 2026 • Southport Acquisition Corp. II • Blank checks • New York

THIS PRIVATE PLACEMENT UNITS PURCHASE AGREEMENT, dated as of [__], 2026 (as it may from time to time be amended, this “Agreement”), is entered into by and between Southport Acquisition Corp. II, a Cayman Islands exempted company (the “Company”), and Southport Acquisition Sponsor II LLC, a Delaware limited liability company (the “Purchaser”).