JATT JATT Acquisition Corp

PROXY ZURA BIO LIMITED Annual General Meeting of Shareholders To be held on October 23, 2024 at 12:00 p.m. EDT This proxy is solicited by the Board of Directors The shareholder(s) named below, revoking all prior proxies, hereby appoint(s) Robert Lisicki, Verender Badial, and Kim Davis, or any of them, as proxies, each with the power to appoint his or her substitute, and hereby authorize(s) them to represent and to vote, as designated on the reverse side of this ballot, all of the Class A ordinary shares of Zura Bio Limited (the “Company”) that the shareholder(s) is/are entitled to vote at the Annual General Meeting of Shareholders (the “Annual Meeting”) to be held at 12:00 p.m. EDT on Wednesday, October 23, 2024 and any adjournment thereof. The Annual Meeting will be held virtually, and for purposes of the Second Amended and Restated Memorandum and Articles of Association of the Company, the physical place of the Annual Meeting shall be at the offices of Cooley LLP, located at 55 Hudson Yards, New York, New York 10001, United States of America. In order to attend the meeting virtually, you must register at https://web.viewproxy.com/zura/2024 by 11:59 p.m. EDT on Tuesday, October 22, 2024. On the day of the Annual Meeting, if you have properly registered, you may enter the meeting by clicking on the link provided and entering the password you received via email in your registration confirmations. Further instructions on how to attend and vote at the Annual Meeting are contained in the Proxy Statement in the Sections titled “Questions and Answers About These Proxy Materials and Voting” under the headings “How do I attend the Annual Meeting?” and “How do I vote?” This proxy, when properly executed, will be voted in the manner directed herein. If no such direction is made, this proxy will be voted in accordance with the Board of Directors’ recommendations. (Continued and to be marked, dated, and signed on other side) • PLEASE DETACH ALONG PERFORATED LINE AND MAIL IN THE ENVELOPE PROVIDED. • Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting: The Annual Report and Proxy Statement are available at: https://web.viewproxy.com/ZURA/2024

DO NOT PRINT IN THIS AREA (Shareholder Name & Address Data) VIRTUAL CONTROL NUMBER INTERNET Vote Your Proxy on the Internet: Go to www.AALvote.com/ZURA Have your proxy card available when you access the above website. Follow the prompts to vote your shares. MAIL Vote Your Proxy by Mail: Mark, sign, and date your proxy card, then detach it and return it in the postage-paid envelope provided. Please mark your votes like this ց The Board of Directors recommends that you vote “FOR” each of the director nominees listed in Proposal 1, and “FOR” Proposals 2 and 3: Proposal 1. Election of Directors: To elect, by ordinary resolution, nine (9) nominees for director to the Company’s Board of Directors to hold office until the next annual general meeting of shareholders or until their respective successors have been elected and qualified, or until their earlier death, resignation or removal. Address Change/Comments: (If you noted any Address Changes and/or Comments above, please mark box.) տ (1) Neil Graham տ տ տ (2) Jennifer Jarrett տ տ տ (3) Sandeep Kulkarni տ տ տ (4) Robert Lisicki տ տ տ (5) Amit Munshi տ տ տ (6) Arnout Ploos van Amstel տ տ տ (7) Steve Schoch տ տ տ (8) Someit Sidhu տ տ տ (9) Parvinder Thiara տ տ տ Proposal 2. Ratification of our independent registered public accounting firm: To ratify, by ordinary resolution, the appointment by the Audit Committee of the Company’s Board of Directors of WithumSmith+Brown, PC as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2024 and until the next annual general meeting of shareholders to be held in 2025. FOR տ AGAINST տ ABSTAIN տ Proposal 3. Adjournment of the Annual Meeting: To approve, by ordinary resolution, the adjournment of the Annual Meeting by the chairman thereof to a later date, if necessary, for the purpose of soliciting additional proxies in favor of the foregoing proposals, in the event the Company does not receive the requisite shareholder votes to approve the foregoing proposals. FOR տ AGAINST տ ABSTAIN տ Note: Such other business that may properly come before the meeting. Date Signature Signature (Joint Owners) Please sign exactly as your name(s) appear(s) hereon. When signing as attorney, executor, administrator, or other fiduciary, please give full title as such. Joint owners should each sign personally. All holders must sign. If a corporation or partnership, please sign in full corporate or partnership name, by authorized officer. • PLEASE DETACH ALONG PERFORATED LINE AND MAIL IN THE ENVELOPE PROVIDED. • PROXY VOTING INSTRUCTIONS Please have your 11-digit control number ready when voting by Internet or when voting during the Annual General Meeting. sig VIRTUAL CONTROL NUMBER