One of Bank of America's most senior executives is taking personal leave

Bryan Weadock, cohead of fixed income, currencies and commodities sales at the US bank, is going on leave, according to a memo seen by Business Insider.

Sanaz Zaimi, Weadock's former cohead, will remain in place, and become sole head on an interim basis.

Karen Fang, who had been head of cross asset solutions and strategies. will head Americas FICC sales in the interim, the memo said.

Weadock joined Bank of America in 2009 from JPMorgan. The Wall Street Journal reported at the time that the bank had handed Weadock a two-year pay deal that included a guaranteed $6 million for the first year.

His temporary exit follows a period of change at the bank's markets business. Kevin Connors, the global head of foreign-exchange sales at Bank of America Merrill Lynch, left the bank in early March. Not long thereafter, the bank cut staff in its markets business.

The bank announced on March 14 that Jim Probert was retiring as head of global capital markets, and would be replaced by AJ Murphy.

Wall Street banks have been having a difficult first quarter. Choppy trading conditions have led many to predict double digit declines in first quarter revenue versus the first three months of 2015.