Klotho Neurosciences, Inc. Sample Contracts

REGISTRATION RIGHTS AGREEMENT
Registration Rights Agreement • June 5th, 2023 • Redwoods Acquisition Corp. • Blank checks

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement” ) is entered into as of May 30, 2023, by and among Redwoods Acquisition Corp., a Delaware corporation (the “Company”), certain stockholders of ANEW Medical, Inc., a Wyoming corporation (“ANEW”), listed on the signature page hereto (the “ANEW Investors”), and the Founder Holders (as defined below, and together with the ANEW Investors and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 6.2 of this Agreement, an “Investor” and collectively, the “Investors”).

INDEMNITY AGREEMENT
Indemnification Agreement • April 4th, 2022 • Redwoods Acquisition Corp. • Blank checks • Delaware

THIS INDEMNITY AGREEMENT (this “Agreement”) is made and entered into as of March 30, 2022, by and between Redwoods Acquisition Corp., a Delaware corporation (the “Company”), and Edward Cong Wang (“Indemnitee”).

SECURITIES PURCHASE AGREEMENT
Securities Purchase Agreement • March 31st, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

This SECURITIES PURCHASE AGREEMENT (this “Agreement”), dated as of January 23, 2025 (the “Subscription Date”), is by and among Klotho Neurosciences, Inc., a Delaware corporation with offices located at 13576 Walnut Street, Suite A, Omaha, NE 68144 (the “Company”), and each of the investors listed on the Schedule of Buyers attached hereto (the “Schedule of Buyers”) (individually, a “Buyer” and, collectively, the “Buyers” and, together with the Company, the “Parties”).

10,000,000 Units Redwoods Acquisition Corp. UNDERWRITING AGREEMENT
Underwriting Agreement • April 4th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

The undersigned, Redwoods Acquisition Corp., a Delaware corporation (“Company”), hereby confirms its agreement with Chardan Capital Markets, LLC (hereinafter referred to as “you”, “Chardan”, or as the “Representative”) and with the other underwriters named on Schedule A hereto for which you are acting as representative (the Representative and the other Underwriters being collectively referred to herein as the “Underwriters” or, individually, an “Underwriter”), as follows:

SUBSCRIPTION AGREEMENT
Subscription Agreement • June 14th, 2024 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances)

This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on June 13, 2024, by and among Redwoods Acquisition Corp., a Delaware corporation (the “Company”) and the undersigned subscriber (“Subscriber”).

FORM OF REGISTRATION RIGHTS AGREEMENT
Registration Rights Agreement • January 24th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances)

This REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as of [●], is by and between [●] (the “Investor”), and Klotho Neurosciences, Inc., a Delaware corporation (the “Company”).

INVESTMENT MANAGEMENT TRUST AGREEMENT
Investment Management Trust Agreement • April 4th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

This Extension Letter shall serve as the notice required with respect to the Extension prior to the Applicable Deadline. Capitalized words used herein and not otherwise defined shall have the meanings ascribed to them in the Trust Agreement.

WARRANT AGREEMENT
Warrant Agreement • April 4th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

This Warrant Agreement (“Warrant Agreement”) is made as of March 30, 2022, by and between Redwoods Acquisition Corp., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company, a New York limited purpose trust company, as warrant agent (the “Warrant Agent”).

March 30, 2022 Redwoods Acquisition Corp.
Underwriting Agreement • April 4th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

This letter agreement is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between Redwoods Acquisition Corp., a Delaware corporation (the “Company”), and Chardan Capital Markets, 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 share of common stock of the Company, $0.0001 par value (the “Common Stock”), one redeemable warrant, each warrant entitling its holder to purchase one share of Common Stock at an exercise price of $11.50 per share (the “Warrants”), and one right to receive one-tenth (1/10) of one share of Common Stock (the “Rights”). Certain capitalized terms used herein are defined in paragraph 16 hereof.

RIGHTS AGREEMENT
Rights Agreement • April 4th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

This Rights Agreement (this “Agreement”) is made as of March 30, 2022 between Redwoods Acquisition Corp., a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company, a New York limited purpose trust company, as rights agent (the “Rights Agent”).

KLOTHO NEUROSCIENCES, INC. COMMON STOCK SALES AGREEMENT
Sales Agreement • July 7th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

Klotho Neurosciences, Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with A.G.P./Alliance Global Partners (the “Sales Agent”), as follows:

FORM OF CONVERTIBLE PROMISSORY NOTE DUE DECEMBER 4, 2025
Convertible Security Agreement • December 10th, 2024 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • Delaware

THIS CONVERTIBLE PROMISSORY NOTE is a duly authorized and validly issued Convertible Promissory Note of Klotho Neurosciences, Inc., a Delaware corporation (the “Company”) designated as its Convertible Note due December 4, 2025 (this “Note”).

FORM OF VOTING AGREEMENT
Voting Agreement • January 24th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

THIS VOTING AGREEMENT (this “Agreement”) is entered into as of [●], by and among the investors listed on Schedule A hereto (each, an “Investor”, and collectively, the “Investors”), Klotho Neurosciences, Inc., a Delaware corporation, (the “Company”), and the stockholders of the Company listed on Schedule B hereto (each, a “Stockholder”, and collectively, including on behalf of affiliated entities and/or one or more funds or accounts managed by a Stockholder the “Stockholders”). Capitalized terms used herein but not otherwise defined shall have the meaning given to them in the Purchase Agreement (as defined below).

Redwoods Acquisition Corp.
Underwriting Agreement • March 25th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

This letter agreement is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”) entered into by and between Redwoods Acquisition Corp., a Delaware corporation (the “Company”), and Chardan Capital Markets, 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 share of common stock of the Company, $0.0001 par value (the “Common Stock”), one redeemable warrant, each warrant entitling its holder to purchase one share of Common Stock at an exercise price of $11.50 per share (the “Warrants”), and one right to receive one-tenth (1/10) of one share of Common Stock (the “Rights”). Certain capitalized terms used herein are defined in paragraph 16 hereof.

SECURITIES PURCHASE AGREEMENT
Securities Purchase Agreement • December 10th, 2024 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • Delaware

This Securities Purchase Agreement (this “Agreement”) is dated as of November 14, 2024, between Klotho Neurosciences, Inc., a Delaware corporation (the “Company”), and Austria Capital LLC (the “Purchaser”) and collectively with the Company, the “Parties”).

EMPLOYMENT AGREEMENT - CEO
Employment Agreement • October 31st, 2024 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

This EMPLOYMENT AGREEMENT (the “Agreement”), with an Effective Date of October 24, 2024, is made by and between Klotho Neurosciences, Inc. (“KLTO”), a Delaware corporation, having an address located at 13576 Walnut Street, Omaha, NE 68144 (the “Company”), and Dr. Joseph Sinkule, individually (the “Executive”), with an address of 13576 Walnut Street, Omaha, NE 68144. Each of the Company and the Executive shall be a “party” and collectively shall be the “parties.”

FORM OF COMMON STOCK PURCHASE WARRANT KLOTHO NEUROSCIENCES, INC.
Common Stock Purchase Warrant • January 24th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

THIS COMMON STOCK PURCHASE WARRANT (the “Warrant”) certifies that, for value received, [●] or its assigns (the “Holder”) is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after [●] (the “Initial Exercise Date”) and on or prior to the close of business on the five (5) year anniversary of the Initial Exercise Date (the “Termination Date”) but not thereafter, to subscribe for and purchase from Klotho Neurosciences, Inc., a Delaware corporation (the “Company”), up to the number of shares of common stock, par value $0.0001 per share (the “Common Stock”), of the Company first set forth above (as subject to adjustment hereunder, the “Warrant Shares”). The purchase price of one Warrant Share under this Warrant shall be equal to the Exercise Price, as defined in Section 2(b). This Warrant is one of a series of warrants (each, a “Warrant”) that has been issued pursuant to that certain Securities Purchase Agreement,

STOCK ESCROW AGREEMENT
Stock Escrow Agreement • March 25th, 2022 • Redwoods Acquisition Corp. • Blank checks • New York

This STOCK ESCROW AGREEMENT, dated as of [●], 2022 (this “Agreement”), by and among REDWOODS ACQUISITION CORP., a Delaware corporation (the “Company”), the initial shareholders listed on the signature pages hereto (collectively, the “Initial Shareholders”), and CONTINENTAL STOCK TRANSFER & TRUST COMPANY, a New York limited purpose trust company (the “Escrow Agent”).

TERMINATION AGREEMENT
Termination Agreement • November 13th, 2024 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • Delaware

This Termination Agreement (the “Agreement”) is made and entered into on this _______ day of October, 2024, by and between ANEW Medical, Inc., a Wyoming corporation (“ANEW”) and Teleost Biopharmaceuticals, LLC, an Arizona limited liability company (“Teleost”) (collectively, the “Parties”).

First Amendment to BUSINESS COMBINATION AGREEMENT
Business Combination Agreement • November 7th, 2023 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances)

This FIRST Amendment to THE BUSINESS COMBINATION AGREEMENT (this “Amendment”), dated as of November 4, 2023, is entered into by and among Redwoods Acquisition Corp., a Delaware corporation (“Buyer”), ANEW MEDICAL SUB, INC., a Wyoming corporation (“Merger Sub”), and ANEW MEDICAL, INC., a Wyoming corporation (the “Company”). Buyer, Merger Sub and the Company are collectively referred to herein as the “Parties” and individually as a “Party.”

BUSINESS COMBINATION AGREEMENT BY AND AMONG REDWOODS ACQUISITION CORP., ANEW MEDICAL SUB, INC. AND ANEW MEDICAL, INC. DATED AS OF MAY 30, 2023
Business Combination Agreement • June 5th, 2023 • Redwoods Acquisition Corp. • Blank checks • Wyoming

This BUSINESS COMBINATION AGREEMENT (this “Agreement”), dated as of May 30, 2023, is made by and among Redwoods Acquisition Corp., a Delaware corporation (“Redwoods”), ANEW Medical Sub, Inc., a Wyoming corporation (“Merger Sub”), and ANEW Medical, Inc., a Wyoming corporation (the “Company”). Redwoods, Merger Sub and the Company shall be referred to herein from time to time collectively as the “Parties” (and each a “Party”). Capitalized terms used herein have the meanings set forth in Section 1.1 and Section 1.2.

SECURITIES PURCHASE AGREEMENT
Securities Purchase Agreement • December 8th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

This SECURITIES PURCHASE AGREEMENT (this “Agreement”) dated as of [●] by and among (the “Execution Date”), by and between Klotho Neurosciences, Inc., a Delaware corporation (the “Company”) and Purchaser identified on the signature pages hereto (the “Purchaser”).

LICENSE AGREEMENT
License Agreement • February 1st, 2024 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances) • England and Wales

Reliance Life Sciences Private Limited, a company incorporated under the laws of India, having its registered office at Dhirubhai Ambani Life Sciences Center, Thane - Belapur Road, Rabale, Navi Mumbai - 400 701, India, and its Affiliates (“RLS”)

SPONSORED RESEARCH AGREEMENT
Sponsored Research Agreement • February 1st, 2024 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances)

This Sponsored Research Agreement (this “Agreement”), effective as of January 24, 2023 (“Effective Date”), is made and entered into by and between ANEW MEDICAL, INC. a private Delaware corporation having its principal offices at ANEW MEDICAL, INC., 13576 Walnut Street, Omaha, Nebraska 68144 USA (“Sponsor” or the “Company”)

AAVone License - Terms of Agreement
Aavone License Agreement • July 22nd, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances)

The License Terms of Agreement and collaboration (the “Agreement”) sets forth the terms of an exclusive license and the activities and deliverables associated with a license for KLTO to utilize the AAVone and potentially the AAVShD platform technologies developed by AAVnerGene. The primary activities are associated with a deliverable related to a product candidate called KLTO-202 which targets amyotrophic lateral sclerosis and other rare motor neuron diseases of mankind.

LICENSE AGREEMENT AND
License and Technology Transfer Agreement • February 1st, 2024 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances)

Universitat Autònoma de Barcelona (hereinafter, “UAB”), an institution organized as a university under the laws of Spain, with registered offices at Campus de la UAB, Plaza Cívica, s/n, 08193 Bellaterra, Spain, provided with Tax Identification number (CIF), Q-0818002-H, duly represented by Dr. Armando Sánchez Bonastre, acting in his capacity as Vice-rector for Research and Transfer of UAB, appointed by the Rector on November 13, 2020; and by virtue of the Resolution of November 23, 2020 for the present purposes and by virtue of the provisions of Article 75 of the Statutes of the UAB, approved by Decree 237/2003 of October 8, of the Generalitat de Catalunya;

SHARE EXCHANGE AGREEMENT
Share Exchange Agreement • April 1st, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • Delaware

This Share Exchange (this “Agreement”) is made and entered into as of March 26, 2025 (the “Agreement Date”), by and among Klotho Neurosciences, Inc., a Delaware corporation (“Klotho”), SkyBell Technologies, Inc., a Nevada corporation (“Seller”) and SB Security Holdings, LLC, a Delaware limited liability company (“SBSH”).

SPONSOR SUPPORT AGREEMENT
Sponsor Support Agreement • June 5th, 2023 • Redwoods Acquisition Corp. • Blank checks

This SPONSOR SUPPORT AGREEMENT, dated as of May 30, 2023 (this “Agreement”), is entered into by and among the persons listed on the signature page hereto (each, a “Supporter”), ANEW Medical, Inc., a Wyoming corporation (the “Company”), Redwoods Acquisition Corp., a Delaware corporation (“Redwoods”). Capitalized terms used but not defined in this Agreement shall have the meanings ascribed to them in the Merger Agreement (as defined below).

VOTING AND SUPPORT AGREEMENT
Voting and Support Agreement • June 5th, 2023 • Redwoods Acquisition Corp. • Blank checks

This VOTING AND SUPPORT AGREEMENT, dated as of May 30, 2023 (this “Voting Agreement”), is entered into by and among ANEW Medical, Inc., a Wyoming corporation (the “Company”), certain stockholders of the Company listed on Exhibit A hereto (each, a “Stockholder” and collectively, the “Stockholders”), and Redwoods Acquisition Corp., a Delaware corporation (“RWOD”). Capitalized terms used but not defined in this Voting Agreement shall have the meanings ascribed to them in the Business Combination Agreement (as defined below).

SECOND AMENDMENT TO FORWARD PURCHASE AGREEMENT CONFIRMATION
Forward Purchase Agreement Confirmation • September 25th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances)

THIS SECOND AMENDMENT TO FORWARD PURCHASE AGREEMENT CONFIRMATION, dated as of September 19, 2025 (this “Amendment”), is entered into by and among (i) Meteora Capital Partners, LP (“MCP”), (ii) Meteora Select Trading Opportunities Master, LP (“MSTO”), (iii) Meteora Strategic Capital, LLC (“MSC”) and (iv) Meteora Special Opportunity Fund I, LP (“MSOF”) (with MCP, MSTO, MSC, and MSOF collectively as “Seller”), and (v) Klotho Neurosciences Inc. f/k/a ANEW Medical, Inc., a Wyoming corporation f/k/a Redwoods Acquisition Corp., a Delaware corporation (“PubCo”).

Binding Letter Agreement between AAVnerGene Inc. and Klotho Neurosciences, Inc. Effective Date: August 6, 2025
Binding Letter Agreement • August 12th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances)

This Binding Letter Agreement (“Agreement”) is entered into as of the Effective Date by and between Klotho Neurosciences, Inc. (“Klotho”) and AAVnerGene Inc. (“AAVnerGene”) (collectively, the “Parties”), and sets forth the initial terms governing their collaboration related to AAVnerGene’s proprietary AAVone platform technologies for the development of Klotho’s gene therapy programs.

Redwoods Acquisition Corp.
Side Letter to Business Combination Agreement • April 17th, 2024 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances)

Reference is made to that certain Business Combination Agreement, dated May 30, 2023 (as amended by the first amendment thereto, the “Merger Agreement”), by and among Redwoods Acquisition Corp., a Delaware corporation (the “Company”), Anew Medical Sub, Inc., a Wyoming corporation and direct, wholly owned subsidiary of Redwoods (“Merger Sub”), and Anew Medical, Inc., a Wyoming corporation (“ANEW”). Capitalized terms used and not defined herein shall have the respective meanings ascribed to them in the Merger Agreement.

LICENSE AGREEMENT
License Agreement • February 1st, 2024 • Redwoods Acquisition Corp. • Biological products, (no disgnostic substances)

THIS LICENSE AGREEMENT (the “Agreement”) is made and executed on this 27th day of January, 2023 (“Effective Date”) by and between (1) Anew Medical Acquisition Corp (“AMAC”) a Wyoming corporation with an address of 13576 Walnut Street, Omaha, NE 68144 USA (hereinafter referred to as “ANEW” or “the Company”) and Affiliates, successors and permitted assigns; and (2) TELEOST BIOPHARMACEUTICALS, LLC an Arizona Corporation, with principal place of business at 2500 Dartmouth Street, Boulder, CO 80305 USA (“TELEOST”). ANEW and TELEOST are individually referred to as a “Party” and jointly as “Parties”.

June 10, 2025 To: Holder of Common Share Purchase Warrants Re: Inducement Offer and Agreement to Exercise Common Share Purchase Warrants Dear Holder:
Inducement Offer and Agreement to Exercise Common Share Purchase Warrants • June 10th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances)

Klotho Neurosciences Inc., a Delaware corporation (the “Company”), is pleased to offer to you the opportunity to exercise the Common Stock Purchase Warrants issued to you on April 4, 2022 (with a current exercise price of $3.49 per share) (collectively, the “Warrants”), currently held by you (the “Holder”) at a lower exercise price equal to $1.35 per share. The resale of the common stock, par value $0.0001 per share (“Common Shares”), underlying the Warrants (“Warrant Shares”) have been registered pursuant to registration statement on Form S-1 (File No. 333-281946) (the “Registration Statement”). The Registration Statement is currently effective and, upon exercise of the Warrants pursuant to this letter agreement, will be effective for the resale of the Warrant Shares. Capitalized terms not otherwise defined herein shall have the meanings set forth in the Warrant.

TERMINATION AND RELEASE AGREEMENT
Termination and Release Agreement • June 13th, 2025 • Klotho Neurosciences, Inc. • Biological products, (no disgnostic substances) • New York

THIS TERMINATION AND RELEASE AGREEMENT, dated as of June 13, 2025 (this “Agreement”), is entered into by and among (i) SkyBell Technologies, Inc., a Nevada Corporation (“SkyBell”), (ii) SB Security Holdings, LLC, a Delaware limited liability company and wholly owned subsidiary of SkyBell (“SBSH”) , and (iii) Klotho Neurosciences, Inc., a Delaware corporation (“Klotho”). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Exchange Agreement.