An unknown buyer acquired 11.5% stake in Katmerciler Arac Üstü Ekipman Sanayi ve Ticaret A.S. (IBSE:KATMR) from Ismail Katmerci on April 4, 2019. An unknown buyer completed the acquisition of 11.5% stake in Katmerciler Arac Üstü Ekipman Sanayi ve Ticaret A.S. (IBSE:KATMR) from Ismail Katmerci on April 4, 2019.