The covered institutions have provided me with the following information.
Bank of Ireland
Due to commercial confidentiality and sensitivities in respect of individual client cases, Bank of Ireland is not in a position to provide a breakdown of the type requested. Relevant disclosures in respect of legal cases involving Bank of Ireland are publicly available through the Courts Service (including on its website).
AIB
Due to sensitivities in respect of individual client cases, AIB is not in a position to provide a breakdown of the type requested. All relevant disclosures in respect of legal cases involving AIB are publicly available through the Court Services website.
IBRC
Due to commercial confidentiality and sensitivities IBRC are unable to provide a breakdown of the type requested. All relevant disclosures in respect of legal cases involving IBRC are publically available through the Courts Services website.
PTSB
I have been advised that the Bank is currently a party to 570 sets of legal proceedings, approximately 470 of which are cases by the Bank and approximately 100 of which are cases against the Bank. Of the cases by the Bank, the vast majority relate to debt recovery and enforcement. The remainder of the cases by the Bank, together with the cases against the Bank, comprise a wide variety of claims, including reckless lending and claims that the Bank has no right to convert their alleged interest only loans to capital and interest repayments.