Is Girisim Sermayesi Yatirim Ortakligi AS (IBSE:ISGSY) acquired 6.6% stake in Ortopro Tibbi Aletler San ve Tic. A.S. from Tolga Yalcinkaya for TRY 3.5 million on March 25, 2020. Is Girisim Sermayesi Yatirim Ortakligi AS (IBSE:ISGSY) completed the acquisition of 6.6% stake in Ortopro Tibbi Aletler San ve Tic. A.S. from Tolga Yalcinkaya on March 25, 2020.