Citigroup’s (C) board of directors has voted to make CEO Jane Fraser its chair of the board and grant her a bonus of restricted stock valued at $25 million, along with additional stock options. The decision by the New York-based bank, which had separated its CEO and board chair positions for close to 20 years, is a major signal of support for 58-year-old Fraser — and the final consolidation of her power as boss over the$1.8 trillion megabank. The move to consolidate both roles to a single person, which ...