Blood bank

Deutsche Bank moved to stanch the bleeding Sunday, saying it would split its corporate banking and securities and asset and wealth management divisions into four separate units. Germany’s largest bank, which earlier this month said it expects a big thirdquarter loss on writedowns and litigation costs, will part ways with Colin Fan, the cohead of securities trading, and Michele Faissola, head of the wealth management business, will be replaced by Quintin Price, a former BlackRock manager, among others.