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
FTSE AIM 100 Index Stock Exchange Group. FTSE AIM 100 Index The FTSE AIM 100 Index is a stock market index of the top 100 companies on the London Stock Exchange's Alternative Investment Market weighted by market capitalisation. It comprises a range of businesses ranging from young, venture capital-backed start-ups to well-established, mature organisations looking to expand. AIM 100 companies must have their primary listing on the Alternative Investment Market, and are required to meet various eligibility criteria. The index may contain companies that are also included in the FTSE AIM UK 50 Index. When the London Stock Exchange created AIM, the objective was