M&T Bank, the US bank in which AIB has a stake, has reported an improved performance in the first three months of this year.
AIB is planning to sell its stake of more than 20% in M&T, along with other assets, to help it meet capital targets set by the Financial Regulator.
M&T said it made a net profit of $151m in the three months, up from $64m in the same period last year.
Chief financial officer Rene Jones said the results were helped by lower credit costs. M&T set aside $105m to cope with loan losses in the first quarter, down from $158m a year earlier.