OBRASCON HUARTE LAIN, S.A. from 19/10/2021 to 19/10/2021 19/10/2021 23:16 OBRASCON HUARTE LAIN, S.A. On corporate transactions: mergers, acquisitions and others OHLA informs the sale of its stakes in CENTRO HOSPITALARIO UNIVERSITARIO DE MONTREAL (CHUM) Register number: 1099