Stock Market Symbols GIB.A (TSX) GIB (NYSE) cgi.com/newsroom MONTRÉAL, May 23, 2023 /PRNewswire/ – CGI (TSX: GIB.A) (NYSE: GIB) is pleased to announce that Sophie Brochu will join its Board of Directors in September 2023. Ms. Brochu has over 30 years of experience in the energy sector….