Voting Rights and Shares Capital of the Company

In accordance with Articles L.233-8 II of the French Commercial Code and 223-16 of the General Regulation of the French Financial Markets Authority (Autorité des Marchés Financiers) PARIS, Dec. 08, 2022 (GLOBE NEWSWIRE) — Paris, France, December 8, 2022Market: Euronext Paris / NasdaqEuronext Compartment: B ISIN code: FR0011341205Nasdaq: NBTXBloomberg: NANO:FPReuters: NANO.PAWebsite: www.nanobiotix.com DateNumber of Shares OutstandingTotal number of voting rightsTotal voting rights, theoretical (1)Total voting rights, exercisable (2)November 30, 202234,875,87236,286,69936,269,556 (1) The total number of theoretical (or “gross”) voting rights is used as the basis for calculating threshold crossings. In accordance with Article 223-11 of the AMF General Regulations, this number is calculated on the basis of all shares to which voting rights are attached, including those for which voting rights have been suspended. (2) The total number of exercisable at a Shareholders’ Meeting (or “net”) voting rights is calculated without taking into account shares for which voting rights have been suspended as shares held in treasury by the Company. It is released in order to ensure that the public is properly informed, in accordance with the AMF recommendation of July 17, 2007. About NANOBIOTIX Nanobiotix is a late-stage clinical biotechnology company pioneering disruptive, physics-based therapeutic approaches to revolutionize treatment outcomes for millions of patients; supported by people committed to making a difference for humanity. The company is leveraging its proprietary nanoparticle platform, including its lead product candidate, radiotherapy activated NBTXR3, to develop a pipeline of therapeutic options designed to enhance local and systemic control of solid tumors with an initial focus on the treatment of head and neck cancers.  For more information about Nanobiotix, visit us at www.nanobiotix.com or follow us on LinkedIn and Twitter.  Contacts Nanobiotix   Nanobiotix CommunicationsBrandon OwensVP, Communications+1 (617) [email protected] Investor Relations Kate McNeilSVP, Investor Relations+1 (609) [email protected]   Media Relations France – Ulysse Communication Pierre-Louis Germain+ 33 (0) 6 64 79 97 51 [email protected] LifeSci Advisors Ligia Vela-Reid +44 (0) 7413825310 [email protected]