Sopharma acquired the shares at a price of 5.60 levs ($3.50/2.86 euro) apiece on the Bulgarian Stock Exchange's regulated market, Sopharma Trading said in a bourse filing.
Since the start of December, Sopharma has acquired 24,203 shares in Sopharma Trading.
Also on Wednesday, Sopharma Trading said that the chairman of its board of directors - Ognyan Donev, sold 520 shares in the company at a weighted average price per share of 5.61 levs. Donev sold the Sopharma Trading's shares on the floor of the Bulgarian Stock Exchange on December 22.
Donev is also the CEO and indirectly the biggest shareholder of Sopharma.
Sopharma held a 76.09% stake in Sopharma Trading at the end of September.
As at 15:55 CET on Wednesday, shares in Sopharma traded 1.25% lower at 3.16 levs. Sopharma Trading's shares traded 4.27% lower at 5.60 levs.
(1 euro = 1.95583 levs)