Morgan Stanley Chairman and CEO James Gorman defended the 25 percent pay hike he was awarded last year – reportedly the highest among Wall Street chief executives – saying it was justified by the bank's performance.

"We had three years where the stock went up," Gorman told CNBC on the sidelines of the Morgan Stanley China Summit in Beijing on Thursday. "So the board, representing shareholders, thought that justified very strong performance, not just for myself, but for the leadership of the firm."