![LOGO](https://capedge.com/proxy/8-K/0001193125-20-075542/g896475page0140.jpg)
Forward Looking Statement This presentation (“Presentation”) is for informational purposes only to assist interested parties in making their own evaluation with respect to the proposed business combination (the “Business Combination”) between ARYA Sciences Acquisition Corp. (“ARYA”) and ImmaticsBiotechnologies GmbH (“Immatics” or the “Company”). The information contained herein does not purport to beall-inclusive and none of ARYA, Immatics and Jefferies LLC nor any of their respective affiliates nor any of its or their control persons, officers, directors, employees or representatives makes any representation or warranty, express or implied, as to the accuracy, completeness or reliability of the information contained in this Presentation. You should consult your own counsel and tax and financial advisors as to legal and related matters concerning the matters described herein, and, by accepting this presentation, you confirm that you are not relying upon the information contained herein to make any decision.Forward-Looking Statements. Certain statements in this presentation may be consideredforward-looking statements.Forward-looking statements generally relate to future events or ARYA’s or the Company’s future financial or operating performance. For example, statements concerning timing of dataread-outs for product candidates, the IND filing for IMA204, IMA301, IMA401, the Company’s focus on partnerships to advance its strategy, atwo-year projection of use of proceeds and projections of future cash on hand and other metrics areforward-looking statements. In some cases, you can identifyforward-looking statements by terminology such as “may”, “should”, “expect”, “intend”, “will”, “estimate”, “anticipate”, “believe”, “predict”, “potential” or “continue”, or the negatives of these terms or variations of them or similar terminology. Suchforward-looking statements are subject to risks, uncertainties, and other factors which could cause actual results to differ materially from those expressed or implied by such forward looking statements. Theseforward-looking statements are based upon estimates and assumptions that, while considered reasonable by ARYA and its management, and Immatics and its management, as the case may be, are inherently uncertain. New risks and uncertainties may emerge from time to time, and it is not possible to predict all risks and uncertainties. Factors that may cause actual results to differ materially from current expectations include, but are not limited to, various factors beyond management’s control including general economic conditions and other risks, uncertainties and factors set forth in the section entitled “Risk Factors” and “Cautionary Note RegardingForward-Looking Statements” in ARYA’s Annual Report on Form10-K for the fiscal year ended December 31, 2018 and other filings with the Securities and Exchange Commission (SEC). Nothing in this presentation should be regarded as a representation by any person that theforward-looking statements set forth herein will be achieved or that any of the contemplated results of suchforward-looking statements will be achieved. You should not place undue reliance onforward-looking statements, which speak only as of the date they are made. Neither ARYA nor the Company undertakes any duty to update theseforward-looking statements. Use of Projections. This Presentation contains financial forecasts of the Company. Neither the Company’s independent auditors, nor the independent registered public accounting firm of ARYA, audited, reviewed, compiled, or performed any procedures with respect to the projections for the purpose of their inclusion in this Presentation, and accordingly, neither of them expressed an opinion or provided any other form of assurance with respect thereto for the purpose of this Presentation. These projections should not be relied upon as being necessarily indicative of future results. Additional Information. In connection with the proposed Business Combination, ARYA intends to file with the SEC a registration statement on FormF-4 containing a preliminary proxy statement and a preliminary prospectus of a newly formed company into which ARYA and the Company will combine, and after the registration statement is declared effective, ARYA will mail a definitive proxy statement/prospectus relating to the proposed Business Combination to its shareholders. This Presentation does not contain all the information that should be considered concerning the proposed Business Combination and is not intended to form the basis of any investment decision or any other decision in respect of the Business Combination. ARYA’s shareholders and other interested persons are advised to read, when available, the preliminary proxy statement/prospectus and the amendments thereto and the definitive proxy statement/prospectus and other documents filed in connection with the proposed Business Combination, as these materials will contain important information about Immatics, ARYA and the Business Combination. When available, the definitive proxy statement/prospectus and other relevant materials for the proposed Business Combination will be mailed to shareholders of ARYA as of a record date to be established for voting on the proposed Business Combination. Shareholders will also be able to obtain copies of the preliminary proxy statement/prospectus, the definitive proxy statement/prospectus and other documents filed with the SEC, without charge, once available, at the SEC’s website at www.sec.gov, or by directing a request to: ARYA Sciences Acquisition Corp., 51 Astor Place, 10th Floor, New York, New York 10003. Participants in the Solicitation. ARYA and its directors and executive officers may be deemed participants in the solicitation of proxies from ARYA’s shareholders with respect to the proposed Business Combination. A list of the names of those directors and executive officers and a description of their interests in ARYA is contained in ARYA’s annual report on Form10-K for the fiscal year ended December 31, 2018, which was filed with the SEC and is available free of charge at the SEC’s web site at www.sec.gov, or by directing a request to ARYA Sciences Acquisition Corp., 51 Astor Place, 10th Floor, New York, New York 10003. Additional information regarding the interests of such participants will be contained in the proxy statement/prospectus for the proposed Business Combination when available. No Offer or Solicitation. This communication is for informational purposes only and does not constitute, or form a part of, an offer to sell or the solicitation of an offer to sell or an offer to buy or the solicitation of an offer to buy any securities, and there shall be no sale of securities, in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended, and otherwise in accordance with applicable law. Certain information contained in this Presentation relates to or is based on studies, publications, surveys and the Company’s own internal estimates and research. In addition, all of the market data included in this presentation involves a number of assumptions and limitations, and there can be no guarantee as to the accuracy or reliability of such assumptions. Finally, while the Company believes its internal research is reliable, such research has not been verified by any independent source. This meeting and any information communicated at this meeting are strictly confidential and should not be discussed outside your organization. The reader shall not rely upon any statement, representation or warranty made by any other person, firm or corporation (including, without limitation, Jefferies LLC or any of its affiliates or control persons, officers, directors and employees) in making its investment or decision to invest in the Company. None of ARYA nor Jefferies LLC, nor any of their respective affiliates nor any of its or their control persons, officers, directors, employees or representatives, shall be liable to the reader for any information set forth herein or any action taken or not taken by any reader, including any investment in shares of ARYA or the Company. 2