الأخبار/Reuters/Silchester Owns 5.05% Stake In Dentsu Group Inc - Regulatory Fili…Silchester Owns 5.05% Stake In Dentsu Group Inc - Regulatory Filing١٣ مارس ٢٠٢٣٠٣:٠٦ UTC4324Dentsu Group Inc 4324:SILCHESTER OWNS 5.05% STAKE IN DENTSU GROUP INC - REGULATORY FILING