Lehman Brothers Holdings Inc., the bankrupt investment bank planning a second payment to creditors in September, said that it raised $4.7 billion in the second quarter from real estate sales, derivatives and settlement of a lawsuit, Bloomberg News reported today. Overseen by a new board since its emergence from bankruptcy in March, the company plans semi-annual distributions and is focused on maximizing cash for that purpose, it said in a regulatory filing yesterday. Allowed claims for payment have been cut to $303 billion from $1.3 trillion originally, with another $58 billion that may be deemed valid, out of disputed claims of $193 billion, Lehman said.