Tidjane Thiam an executive director, sitting on the plc board. In January 2007, after Richard Harvey announced he would step down as chief executive of Aviva, Thiam was tipped as a possible future head of the group. Thiam left Aviva in September 2007 to become chief financial officer of Prudential plc. In March 2009, Thiam was named chief executive, effective from October, after Mark Tucker chose to step down. The appointment made him the first African to lead a FTSE 100 listed company. His departure from the role was announced on 10 March 2015. After he became chief executive, Prudential launched a
Octagonal (company) Octagonal (company) Octagonal is a holding company headquartered in London. The company is listed on the London Stock Exchange and is a constituent of the FTSE AIM All-Share Index. Octagonal currently has a 100% stake in Global Investment Strategy UK Ltd or 'GIS', a financial services company and member of the London Stock Exchange. Octagonal was founded in 2007 as an investment company, and acquired a 9.97% stake in Global Investment Strategy in April 2014. In 2015, Octagonal announced it had entered into a conditional agreement to acquire the remaining issued share capital of GIS. Octagonal raised £1.7 million through