Investment group Penta should in a short time become the only owner of largest private health insurance company Dôvera. Until now it has been sharing the property exactly in half with Cyprus holding company Prefto Holding. Penta has, however, agreed with Prefto shareholders on the purchasing of its 50% share. The reason is allegedly the disagreement between the shareholders of both companies. Price paid by Penta will not be published. Whole transaction has to be approved by Antimonopoly Office of the Slovak Republic.