3 Min Read (Reuters) - Blackstone won over Signature Aviation’s biggest shareholder Bill Gates for a possible $4.3 billion bid for the British private jet servicing company, going head-to-head with another potential suitor Carlyle. FILE PHOTO: The ticker and trading information for Blackstone Group is displayed at the post where it is traded on the floor of the New York Stock Exchange (NYSE) April 4, 2016. REUTERS/Brendan McDermid Blackstone’s agreement with Gates’ Cascade Investment Llc for its planned offer announced on Friday comes just hours after Signature confirmed an initial takeover approach from Carlyle. Blackstone and Cascade, which already owns a 19% stake in London-based Signature, are in advanced talks with the company about their proposal that involves a cash offer of 3.81 pounds per share, they said in a joint statement.