Fannie Mae Chief Financial Officer David Johnson plans to leave the company by yearend, according to a regulatory filing Tuesday.
Johnson informed the government-sponsored enterprise of his intentions on Friday, Fannie said.
David Hisey, deputy chief financial officer, will serve as interim CFO until a successor is named.
Johnson joined Fannie in November 2008 - two months after the GSE was placed into federal conservatorship — from the insurer Hartford Financial Services Group, where he also served as CFO.
He was Fannie's third CFO that year.
Earlier this month, Fannie reported a $3.46 billion loss for the third quarter, due in part to a $2.12 billion dividend it paid to the government.