BioSenic S.A.

Information on the total number of voting rights and shares

PRESS RELEASE – REGULATED INFORMATION

Mont-Saint-Guibert, Belgium, March 29, 2024, 7.00 am CEST – BIOSENIC (Euronext Brussels and Paris: BIOS), the clinical-stage company specializing in serious autoimmune and inflammatory diseases and cell therapy, today announces an increase in the total number of voting rights and shares as a result of the issuance of new shares. The following information is published in accordance with Article 15 of the Belgian law of 2 May 2007 on the publication of major shareholdings in issuers whose shares are admitted to trading on regulated market.

Total amount of share capital on February 29, 2024	EUR 35 850 669
Total number of shares with voting rights on February 29, 2024	183 525 722
Total number of new shares issued between February 29, 2024 and March 29, 2024	9 347 826

Total amount of share capital on March 29, 2024	EUR 36 050 669
Total number of shares with voting rights on March 29, 2024	192 873 548
Total number of voting rights (denominator) on March 29, 2024	192 873 548
Total number of attributed warrants	1 161 556
Total number of convertible bonds outstanding	958
Total number of remaining convertible bonds commitments	30
Total number of shares with voting rights that can be issued following the exercise of the attributed warrants, remaining convertible bonds commitments and the conversion of the convertible bonds	145.143.720 (1)

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• 1 161 556 shares could be issued in case all 1 161 556 attributed warrants were exercised.
• 285 714 shares could be issued in case all 800 convertible bonds outstanding, issued in the private placement on 6 May 2020, were converted into shares based on the predetermined conversion price of EUR 7.00.
• 143 696 450 shares could be issued in case all 30 convertible bonds commitments remaining and all 158 convertible bonds outstanding of the two ABO convertible bonds programs were exercised and converted into shares based on the conversion price of EUR 0,020425 (95% of the Volume-Weighted-Averaged-Price of BioSenic's shares on 25 March 2024).