Summary List PlacementSeth Turkeltaub has left Millennium after more than a decade managing money for Izzy Englander to start his own fund. Concentric Capital Strategies will be a Stamford, Conn.-based long-short equity manager, Turkeltaub confirmed to Insider. Morgan Stanley will serve as the prime broker for the new firm, sources tell Insider. This is the second fund Turkeltaub has launched. Prior to working for Englander, he founded Searock Capital in 2002 after working billionaire Steve Cohen's SAC Capital as a portfolio manager for two years.