ABIONYX: Information on voting rights and shares as of February 28, 2026

ABIONYX, listed on Euronext Paris, Compartment C, has released key figures regarding its share capital as of February 28, 2026. The company has 35,511,655 shares outstanding. In terms of voting rights, the gross total is 45,090,893, while the net total is 44,842,154. The number of gross voting rights includes shares without voting rights, in accordance with AMF regulations. Net voting rights correspond to the rights exercisable at general meetings.

This information is crucial for investors and the public, providing transparency into ABIONYX's governance structure. The company remains committed to innovation in biopharmaceuticals for severe inflammatory diseases.