Inventiva S A : Corporate Presentation November 2020

DISCLAIMER

This presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, including statements regarding our future financial condition, results of operations, business strategy and plans, and objectives of management for future operations, as well as statements regarding industry trends, are forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "may," "plan," "potential" "predict," "project," "should," "target," or "will" or the negative of these terms or other similar expressions.

We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including, among other things: the success, cost and timing of our product development activities and clinical trials; our expectations about the timing of achieving regulatory approval and the cost of our development programs; our ability to obtain funding for our operations, including funding necessary to complete further development of our product candidates; the commercialization of our product candidates, if approved; our plans to research, develop and commercialize our product candidates; our ability to attract collaborators with development, regulatory and commercialization expertise; our expectations regarding our ability to obtain and maintain intellectual property protection for our product candidates; future agreements with third parties in connection with the commercialization of our product candidates; our ability to maintain, expand, protect and enforce our intellectual property portfolio; our ability to operate our business without infringing, misappropriating or otherwise violating the intellectual property rights of third parties; the size and growth potential of the markets for our product candidates, and our ability to serve those markets; the rate and degree of market acceptance of our product candidates; regulatory developments in the United States, Europe and other jurisdictions; our ability to contract with third-party suppliers and manufacturers and their ability to perform adequately; the success of competing therapies that are or may become available; and our ability to attract and retain key scientific or management personnel. These and other risks we face are described in the "Risk Factors" section of the final prospectus related to our initial public offering of American Depositary Shares in the United States, filed with the U.S. Securities and Exchange Commission (SEC) on July 13, 2020, as well as our other documents or reports that we may file with or furnish to the SEC from time to time, available atwww.sec.gov. New risk factors emerge from time to time and it is not possible for our management to predict all risk factors, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in, or implied by, any forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements. Except as required by law, we undertake no obligation to update publicly any forward-looking statements for any reason after the date of this presentation.

In addition, statements that "we believe" and similar statements reflect our beliefs and opinions on the relevant subject. These statements are based upon information available to us as of the date of this presentation, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these statements.

Inventiva in a nutshell

Clinical stage biotech with focus on oral small molecules for the treatment of NASH, MPS, and other diseases with high unmet medical needs

Two unencumbered late stage assets

• - Lanifibranor - only pan-PPAR agonist in clinical development for NASH; positive Phase IIb topline data announced in June 2020 and Breakthrough Therapy Designation granted by FDA in October 2020

• - Odiparcil - potential for first orally available therapy for MPS; positive Phase IIa trial results in adult patients with MPS VI published in December 2019 - initiation of extension study and of Phase Ib/II (SAFE-KIDDS) trial in children with MPS VI planned for H1 2021

A clinical stage collaboration with AbbVie

• - ABBV-157 ROR program with potential in several auto-immune indications; currently in clinical development by AbbVie in patients with psoriasis

• - Inventiva eligible to receive milestone payments and sales royalties

Compelling early stage pipeline - YAP-TEAD oncology program in pre-clinical stage, approaching clinical candidate selection

R&D capabilities including wholly-owned 'pharma scale' discovery facilities with a discovery engine focused on nuclear receptors, transcription factors and epigenetic targets - compound library of 240,000 molecules, 60% of which are proprietary

Strong US and European shareholder base and experienced senior management team

Cash position currently allowing a runway through Q4 2022

Property of Inventiva │ 3

Management team with extensive experience across all stages of drug development and commercialization

Frédéric Cren, MA/MBA, CEO and Co-Founder

•  Wide expertise within the areas of R&D, marketing, strategy and commercial operations

•  Held senior positions at Abbott, Fournier, Solvay Pharma and The Boston Consulting Group

•  Former member of both Fournier and Solvay Pharma Executive Committees

Pierre Broqua, Ph.D., CSO and Co-Founder  Successfully managed numerous research programs leading to the discovery, development and commercialization of innovative compounds, including lanifibranor and Degarelix/ Firmagon®  Held several senior research positions at Fournier, Solvay Pharma and Abbott

Jean Volatier, MA, CFO  Former Head of controlling at URGO & Financial Director International Operations of Fournier  Held various positions as CFO with Soufflet and Naos, and started started his career with PwC in Paris and

Philadelphia

Marie-Paule Richard, MD, CMO  Long and diverse international experience acquired with organizations such as GSK, Aventis, Sanofi Pasteur as well as in biotechonolgy as a CMO  Former CMO of Belgium biotech Tigenix, acquired by Takeda in 2018

David Nikodem, Ph.D., VP US Operations  Former buyside portfolio manager and analyst for +15 years in public equities and VC  Based in the Washington DC area