The decision may be appealed with the High Court’s panel of five judges.
The trial ended on January 9, 2012 and a verdict was expected last Monday.
At his last court appearance, Nastase maintained he is innocent and said the case against him is politically motivated.
On December 15, 2011, Nastase was acquitted in a separate trial in which he faced corruption charges. Anticorruption prosecutors appealed the decision.