Information relating to the stabilization activities carried out in the context of its recent offering

Daix (France), New York City (New York, United States), November 24, 2025 – Publication of information relating to the stabilization activities carried out in the context of the recent public offering of Inventiva (the "Company" or "Inventiva") in the United States (the "Offering") of 38,961,038 American Depositary Shares ("ADSs"), each representing one ordinary share of the Company with a nominal value of €0.01. As announced on 18 November 2025, the underwriters have exercised in full their option (the "Underwriters' Option") to purchase 5,844,155 additional ADSs (the "Additional ADSs").

The Company has received notification that Piper Sandler, acting as stabilization agent, has carried out stabilization activities (as defined in Article 3.2(d) of Regulation (EU) No 596/2014 of the European Parliament and the Council of 16 April 2014 on market abuse (the "Market Abuse Regulation")) on the following securities:

The stabilization period, which started on 13 November 2025, ended on 17 November 2025.  Pursuant to Article 6, paragraph 3, of the Commission delegated regulation (EU) 2016/1052 of 8 March 2016 supplementing the Market Abuse Regulation with regard to regulatory technical standards for the conditions applicable to buy-back programs and stabilization measures (the "Delegated Regulation"), Inventiva, on the basis of the information provided by Piper Sandler, is publishing in this press release the information relating to the stabilization activities carried out by Piper Sandler as stabilization agent:

This press release is issued also on behalf of Piper Sandler pursuant to Article 6, paragraph 3, of the Delegated Regulation.

Disclaimers

This press release does not constitute an offer to sell or the solicitation of an offer to buy securities in any jurisdiction, and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of that jurisdiction.

The distribution of this document may, in certain jurisdictions, be restricted by local legislations. Persons into whose possession this document comes are required to inform themselves about and to observe any such potential local restrictions.

France

The securities offered as part of the Offering have not been and will not be offered or sold to the public in France (except for public offerings defined in Article L.411-2 1° of the French Monetary and Financial Code). The securities offered as part of the Offering may only be offered or sold in France pursuant to Article L. 411-2 1° of the French Monetary and Financial Code to "qualified investors" (investisseurs qualifiés) (as such term is defined in Article 2(e) of Prospectus Regulation) acting for their own account, and in accordance with Articles L. 411-1, L. 411-2 and D. 411-2 to D.411-4 of the French Monetary and Financial Code.

This announcement is not an advertisement and not a prospectus within the meaning of the Prospectus Regulation.

European Economic Area

In relation to each Member State of the European Economic Area (each, a "Member State") no offer to the public of securities may be made in that Member State other than:

• to any legal entity which is a ‘‘qualified investor’’ as defined in the Prospectus Regulation;
• to fewer than 150 natural or legal persons (other than a qualified investor as defined in the Prospectus Regulation), subject to obtaining the prior consent of the representatives of the placement agents for any such offer; or
• in any other circumstances falling within Article 1(4) of the Prospectus Regulation, provided that no such offer of securities shall require us or any placement agent to publish a prospectus pursuant to Article 3 of the Prospectus Regulation or supplement a prospectus pursuant to Article 23 of the Prospectus Regulation and each person who initially acquires any shares or to whom any offer is made will be deemed to have represented, acknowledged and agreed to and with each of the placement agents and the Company that it is a ‘‘qualified investor’’ as defined in the Prospectus Regulation.
  
  
  
  

For the purposes of this provision, the expression an "offer to the public" in relation to any securities in any Member State means the communication in any form and by any means of sufficient information on the terms of the offer and any securities to be offered so as to enable an investor to decide to purchase any ordinary shares.

United Kingdom

This document is only being distributed to, and is only directed at, persons in the United Kingdom that (i) are "investment professionals" falling within Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005 (as amended, the "Order"), (ii) are persons falling within Article 49(2)(a) to (d) ("high net worth companies, unincorporated associations, etc.") of the Order, or (iii) are persons to whom an invitation or inducement to engage in investment activity (within the meaning of Article 21 of the Financial Services and Markets Act 2000) in connection with the issuance or sale of any securities may otherwise lawfully be communicated or caused to be communicated (all such persons together being referred to as "Relevant Persons"). This document is directed only at Relevant Persons and must not be acted on or relied on by persons who are not Relevant Persons. Any investment or investment activity to which this document relates is available only to Relevant Persons and will be engaged in only with Relevant Persons.

This press release has been prepared in both French and English. In the event of any differences between the two texts, the French language version shall supersede.

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