Châtillon, France, October 30, 2025 DBV Technologies Announces Appointment of Philina Lee, Ph.D. to Board of Directors DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Market: DBVT), (the “Company” or “DBV”), a clinical-stage biopharmaceutical company, today announced the provisional appointment of a new independent director, Dr. Philina Lee, to its Board of Directors (the “Board”), effective October 30, 2025.

Châtillon, France, October 30, 2025 DBV Technologies to Participate in Upcoming ACAAI 2025 Annual Scientific Meeting DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Stock Market: DBVT – CUSIP: 23306J309), a clinical-stage biopharmaceutical company, today announced upcoming participation in the American College of Allergy, Asthma & Immunology (ACAAI) 2025 Annual Scientific Meeting, November 6 - 10, in Orlando, Florida. DBV will host a Product Theater titled “Harnessing Immune Plasticity to Alter the Path of Food Allergy”.

Châtillon, France, October 29, 2025 DBV Technologies Announces Sale of approximately $30 million of ADSs Through its At-The-Market (ATM) Program on Nasdaq DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Capital Market: DBVT) (the “Company”), a clinical-stage biopharmaceutical company, today announced that, pursuant to the Company's At-The-Market program established on September 5, 2025 (the “ATM Program”), it has agreed to issue and sell new ordinary shares (the “Ordinary Shares”) in the form of American Depositary Shares (“ADSs”), for total gross proceeds to the Company of approximately $30 million, before deducting sales agent commissions and offering expenses payable by the Company, to Artisan Partners Limited Partnership (“Artisan”) through Citizens Capital Markets, acting as sales agent. Each ADS represents the right to receive five Ordinary Shares of the Company.

Châtillon, France, October 6, 2025 DBV Technologies Announces Sale of approximately $30 million of ADSs Through its At-The-Market (ATM) Program on Nasdaq DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Capital Market: DBVT) (the “Company”), a clinical-stage biopharmaceutical company, today announced that, pursuant to the Company's At-The-Market program established on September 5, 2025 (the “ATM Program”), it has agreed to issue and sell new ordinary shares (the “Ordinary Shares”) in the form of American Depositary Shares (“ADSs”), for total gross proceeds to the Company of approximately $30 million, before deducting sales agent commissions and offering expenses payable by the Company, to Invus (“Invus”) through Citizens Capital Markets, acting as sales agent. Each ADS represents the right to receive five Ordinary Shares of the Company.

Châtillon, France, September 18, 2025 DBV Technologies Announces Resignation of Board Member DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Market: DBVT), (the “Company” or “DBV”), a clinical-stage biopharmaceutical company, today announced the resignation of Daniel Soland, as a member of its Board of Directors (the “Board”), effective immediately. “On behalf of the Board, DBV's management team and shareholders, I thank Daniel for his commitment to the Company,” said Michel de Rosen, Chairman of the Board.

Châtillon, France, September 5, 2025 DBV Technologies Establishes an At-The-Market (ATM) Program on Nasdaq DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Capital Market: DBVT) (the “Company”), a clinical-stage biopharmaceutical company, today announced that it has filed a prospectus supplement with the U.S. Securities and Exchange Commission (“SEC”) relating to an at-the-market offering (the “ATM Program”). Pursuant to this new financing program, the Company may offer and sell, including with unsolicited investors who have expressed an interest, a total gross amount of up to $150 million of American Depositary Shares (“ADS”), each ADS representing five ordinary shares of the Company, from time to time in sales deemed to be an “at the market offering” pursuant to the terms of a sales agreement (the “Sales Agreement”) with Citizens JMP Securities, LLC (“Citizens”), acting as sales agent, subject to French regulatory limits.

Châtillon, France, July 29, 2025 DBV Technologies announces filing of 2025 Half-Year Report ― Conditions for accessing or consulting the Report DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Stock Market: DBVT), a clinical-stage biopharmaceutical company focused on treatment options for food allergies and other immunologic conditions with significant unmet medical need (the “Company”), today announced the filing, for the semester ended June 30, 2025, of its Half-Year Report with the French market authority, “Autorité des Marchés Financiers” (“AMF”). The 2025 Half-Year Report can be consulted or downloaded from the Company's website (www.dbv-technologies.com) in the section Investors/Financial Information, and on the AMF website (www.amf-france.org), in French only.

AMF Regulated Information Châtillon, France, July 28, 2025 Half-Year Report on the DBV Technologies Liquidity Contract with ODDO BHF DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Stock Market: DBVT), a clinical-stage biopharmaceutical company, today issued the Half-Year report on its liquidity contract with ODDO BHF. Under the liquidity contract between DBV Technologies and ODDO BHF, the following assets appeared on the liquidity account as of June 30, 2025: 210,069 DBV Technologies shares, € 171,301.08.

Châtillon, France, July 22, 2025 DBV Technologies Announces Appointment of James Briggs as Chief Human Resources Officer DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Market: DBVT), a clinical-stage biopharmaceutical company, today announced the appointment of James Briggs as its Chief Human Resources Officer, succeeding Caroline Daniere. An experienced human capital executive, James will lead key initiatives as DBV transitions from a development-stage biotechnology company to a potential commercial organization.

Châtillon, France, June 25, 2025 DBV Technologies Announces First Subject Screened in COMFORT Toddlers Supplemental Safety Study in Peanut Allergic Toddlers 1 – 3 Years Old First subject screened at the Respiratory Medicine Research Institute of Michigan with Dr. Jeffrey Leflein acting as Principal Investigator Additional sites, including Allergy and Asthma Center of Minnesota and Hamilton Allergy and Immunology Clinic of Ontario, Canada have been activated and are scheduling screenings DBV Technologies (Euronext: DBV – ISIN: FR0010417345 – Nasdaq Market: DBVT), a clinical-stage biopharmaceutical company, today provided an update on the progress on the Company's COMFORT Toddlers supplemental safety study using the Viaskin® Peanut patch 250 μg in peanut-allergic children ages 1 – 3 years old. COMFORT Toddlers will enroll approximately 480 subjects at approximately 80 – 90 study centers across the U.S., Canada, Australia, UK and Europe.