Admission and introduction to exchange trading of series W ordinary bearer shares

Current report no. 15/2026

Drafting date: 9 April 2026

Subject: Admission and introduction to exchange trading of series W ordinary bearer shares

Legal basis: Article 56(1)(2) of the Act on Public Offerings – current and periodic information

The Management Board of Captor Therapeutics S.A., with its registered office in Wrocław (the "Company"), has learned that the Management Board of the Warsaw Stock Exchange adopted Resolution No. 543/2026 of 9 April 2026 on the admission and introduction of 24.688 series W ordinary bearer shares, with a nominal value of PLN 0.10 each, to trading on the main market on 13 April 2026.

The introduction is subject to the registration of these shares by the National Depository for Securities (Krajowy Depozyt Papierów Wartościowych S.A.) on 13 April 2026 and their designation with ISIN code PLCPTRT00014.

The resolution came into force on the date of its adoption.