Nanobiotix

Regulatory News Service • Sep 2, 2025

PRESS RELEASE

NANOBIOTIX TO PARTICIPATE IN THE H.C. WAINWRIGHT 27TH ANNUAL GLOBAL INVESTMENT CONFERENCE

Paris, France; Cambridge, Massachusetts (USA); September 2, 2025 - NANOBIOTIX (Euronext: NANO –– NASDAQ: NBTX – the ''Company''), a late-clinical stage biotechnology company pioneering nanoparticlebased approaches to expand treatment possibilities for patients with cancer and other major diseases, announced today that Company management will participate in a fireside chat at following conference:

H.C. Wainwright 27th Annual Global Investment Conference

Date: Tuesday, September 9th, 2025 Time: 9:00 am EDT / 3:00 pm CEST Location: New York, NY Presenters: Laurent Levy, Chief Executive Officer of Nanobiotix & Bart van Rhijn, Chief Financial & Business Officer of Nanobiotix Webcast link: Click here

The fireside chat will be webcast live from the events page of the Investors section of the Company's website. The replay of the webcast will be available following the event.

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's philosophy is rooted in the concept of pushing past the boundaries of what is known to expand possibilities for human life.

Incorporated in 2003, Nanobiotix is headquartered in Paris, France and is listed on Euronext Paris since 2012 and on the Nasdaq Global Select Market in New York City since December 2020. The Company has subsidiaries in Cambridge, Massachusetts (United States) amongst other locations.

Nanobiotix is the owner of more than 25 patent families associated with three (3) nanotechnology platforms with applications in 1) oncology; 2) bioavailability and biodistribution; and 3) disorders of the central nervous system.

For more information about Nanobiotix, visit us at www.nanobiotix.com or follow us on LinkedIn and Twitter.

Contacts

Nanobiotix Communications Department Brandon Owens VP, Communications +1 (617) 852-4835 contact@nanobiotix.com Investor Relations Department Joanne Choi VP, Investor Relations (US) +1 (713) 609-3150 Ricky Bhajun Director, Investor Relations (EU) +33 (0) 79 97 29 99 investors@nanobiotix.com Media Relations

France – HARDY Caroline Hardy +33 06 70 33 49 50 carolinehardy@outlook.fr Global – LifeSci Advisors Kevin Gardner +1 (617) 283 -2856 kgardner@lifesciadvisors.com