UBS AG said it expects to raise 3.8 billion Swiss francs ($3.45 billion) in a stock sale to boost its capital, and announced it thinks it will incur a second-quarter loss due to restructuring charges.

One of the hardest hit banks in the global financial crisis, UBS last month warned it may have to raise credit provisions in coming quarters while posting another steep loss for its first quarter amid write-downs in its investment banking operations. The company has cut thousands of jobs following its expansion into riskier businesses at the peak of the market.