Voting Rights and Shares Capital of the Company

Nanobiotix publishes updated share count and theoretical versus exercisable voting rights to inform investors about its current capital structure.

Rhea-AI Summary

Nanobiotix (NBTX) reported its share capital and voting rights position as of August 31, 2026, in line with French market regulations.

The company had 50,941,528 shares outstanding on that date. The total number of theoretical ("gross") voting rights was 54,701,246, including shares with suspended voting rights used for threshold calculations. The total number of exercisable ("net") voting rights at shareholders’ meetings was 54,679,128, excluding treasury shares with suspended voting rights. Nanobiotix is a late-stage clinical biotechnology company headquartered in Paris and listed on Euronext Paris and the Nasdaq Global Select Market.

Key Figures

Shares Outstanding: 50,941,528 shares Theoretical Voting Rights: 54,701,246 Exercisable Voting Rights: 54,679,128

Shares Outstanding

50,941,528 shares

As of August 31, 2026

Theoretical Voting Rights

54,701,246

As of August 31, 2026

Exercisable Voting Rights

54,679,128

As of August 31, 2026

Historical Context

3 past events · Latest: Aug 25

3 events

1. Aug 25

   Voting rights disclosure

   24h Move

   +2.6%

   Monthly disclosure reported shares outstanding and theoretical and exercisable voting rights.

2. Jul 30

   Voting rights disclosure

   24h Move

   -4.4%

   Monthly disclosure reported June share capital and voting rights figures.

3. Jun 05

   Voting rights disclosure

   24h Move

   +1.2%

   Monthly disclosure reported May shares outstanding and voting rights figures.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

isin code, theoretical voting rights, exercisable voting rights

3 terms

isin code financial

"ISIN code: FR0011341205"

An ISIN code is a unique identifier for a specific financial asset, like a stock or bond, similar to a product's barcode. It helps investors, traders, and banks quickly and accurately find and track that asset across different markets worldwide. This makes buying, selling, and managing investments more organized and reliable.

theoretical voting rights regulatory

"Total voting rights, theoretical1"

Theoretical voting rights are the share of control an investor would have if all possible sources of additional shares—such as stock options, warrants and convertible bonds—were turned into ordinary shares. Investors care because this “what-if” number shows potential dilution of current owners and the maximum voting power others could gain, helping assess control risk and how future actions might change company decisions, like a snapshot of ownership if every coupon were cashed in.

exercisable voting rights regulatory

"Total voting rights, exercisable2"

Exercisable voting rights are the actual, usable votes attached to a security or position that allow the holder to influence company decisions at shareholder meetings—for example electing the board or approving mergers. They matter to investors because the number of votes someone can cast determines who controls the company and its strategy, similar to having usable tickets at a town meeting rather than placeholders, and can affect share value, takeover risk and how much influence minority holders have.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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, Sept. 22, 2026 (GLOBE NEWSWIRE) --
Market: Euronext Paris / Nasdaq
Euronext Compartment: B
ISIN code: FR0011341205
Nasdaq: NBTX
Bloomberg: NANO:FP
Reuters: NANO.PA
Website: www.nanobiotix.com

Date	Number of Shares Outstanding	Total number of voting rights
		Total voting rights, theoretical1	Total voting rights, exercisable2
August 31, 2026	50,941,528	54,701,246	54,679,128

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 a subsidiary in Cambridge, Massachusetts (United States).

Nanobiotix is the owner of more than 30 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.

_________________________________

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.

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) investors@nanobiotix.com
Media Relations
France – HARDY Caroline Hardy +33 06 70 33 49 50 carolinehardy@outlook.fr	Global – uncapped Becky Lauer +1 (646) 286-0057 uncappednanobiotix@uncappedcommunications.com

Attachment

• 2026-09-22 -- NBTX -- Voting Rights & Shares Capital -- FINAL