The shares changed hands at 0.432 marka apiece, the Banja Luka Stock Exchange (BLSE) data showed.
Napredak's share capital is divided into 6,015,177 shares of 1 marka in par value each.
Its shares last traded in regular trading on the BLSE on June 25, closing flat at 0.432 marka.
(1 euro = 1.956 marka)