An unknown investor signed a preliminary and conditional agreement to acquire 25.6% stake in Interbud Lublin Spolka Akcyjna (WSE:ITB) from Witold Matacz on May 5, 2017. In a related transaction, Witold Matacz signed an agreement to sell 8.2% stake in Interbud Lublin Spolka Akcyjna to Krajowy Fundusz Inwestycyjny.