Alibaba Group on Monday reported slower growth in fourth-quarter revenue and declining profit margins ahead of its IPO in the US, Bloomberg reported. Alibaba’s first revision to its IPO prospectus showed sales in the quarter through March increased 39% as merchants allocated less of their marketing budgets to Alibaba’s platforms during the period. That compares with a growth rate of 71% for same quarter a year earlier. Operating margins narrowed to 45% from 51% in the prior year. The company’s filing also named the 27 members of Alibaba’s partnership who are key to its unique corporate governance structure.