Vincent Bollore has taken his stake in media buying and research group Aegis up from 20.13 percent, where it stood at the end of last week, to 20.22 percent, Brand Republic reports (via MediaBuyerPlanner). He is expected to make clear his intentions sometime this week, now that he has moved beyond the 20 percent mark. According to U.K. regulations, Bollore is bound to make a bid for the company if he acquires shares giving him 30 percent or more of the voting rights in Aegis.