Dow Chemical Chief Executive Andrew Liveris will leave Citigroup board of directors in April, the bank said in a regulatory filing on Monday. Liveris will not stand for re-election at the bank's annual meeting on April 21, according to the filing.

The head of the largest U.S. chemical maker, Liveris joined Citigroup's board in 2005 and was one of the few remaining directors from before the financial crisis. He is also on the IBM board of directors.

Regulators pressed the bank to add more directors with financial experience during the crisis, as massive losses forced Citigroup to take $45 billion in U.S. bailout funds. Last month, the bank reported its first full-year profit since 2007.