AIB's group's chief operating officer Tomás O'Midheach has tendered his resignation to the bank's board, triggering the six month notice period in his contract.
Mr O'Midheach is leaving the bank in order to pursue other business interests.
Since joining AIB in 2006, Tomás hs held a number of senior executive positions including Head of Direct Channels and Analytics and Chief Digital Officer.
He was appointed as an Executive Director in March 2019.
