Okovic offers to pay 302 marka ($169.1/154.4 euro) per each PTG share in the bid, targeting 605 shares in the company, equal to a 0.9% stake, he said in a bourse filing.
He currently owns 15,939 shares of PTG, representing a 24.0647% stake in the company.
In the offer, Okovic acts together with OKAC, which holds a 19.9% stake in PTG, and Tak, which owns 55.1% of PTG. The three shareholders control a 99.1% stake in PTG among themselves.
The offer is valid for 28 days from the announcement date.
PTG's shares last traded on the Sarajevo Stock Exchange on October 9, closing 0.33% lower at 301 marka.
(1 euro = 1.95583 marka)