has hired lobbyists for the first time in 20 years, and top executives have been proactively meeting with lawmakers. In some cases, those appointments have been pitched as simple, get-to-know-Jane-Street conversations, part of an effort to explain how the privately-held firm makes markets and is generating trading hauls greater than many of the world’s largest investment banks in the process, according to people familiar with the meetings who asked not to be identified discussing private communications.Eig ...