Addiko Bank AG is offering 327.7 marka ($182.2/167.6 euro) per share in the offer, it said in a bourse filing.
The buyout bid is valid for 28 days from the announcement date.
Addiko Bank AG currently owns 532,492 shares, representing a 99.9985% stake, in its Sarajevo-based unit. Addiko Bank Sarajevo's total share capital is divided into 532,500 shares, each with a par value of 188.55 marka.
Addiko Bank also has a unit in Banja Luka.
(1 euro = 1.95583 marka)