AIB Group Plc — Major Shareholding Notification 2025

Oct 30, 2025

Note: This submission to OAM is in respect of the regulatory announcement disclosed to the public via RNS on 25/09/2024 and filed with Euronext Dublin under reference number ANN137625.

No changes have been made to the form.

Standard Form TR-1

Standard form for notification of major holdings

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer and to the Central Bank of Ireland)ⁱ

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attachedii:
AIB GROUP PLC

• 1. Reason for the notification (please tick the appropriate box or boxes):
• [] An acquisition or disposal of voting rights
• [X] An acquisition or disposal of financial instruments
• [] An event changing the breakdown of voting rights
• [] Other (please specify)ii
• 1. Details of person subject to the notification obligationiv :

Name: City and country of registered office (if applicable):

Bank of America Corporation Wilmington, DE, United States

• 1. Full name of shareholder(s) (if different from 3.)^v :
• 1. Date on which the threshold was crossed or reachedvi: 24/09/2024
• 1. Date on which issuer notified: 25/09/2024
• 1. Threshold(s) that is/are crossed or reached: 4%
• 1. Total positions of person(s) subject to the notification obligation:

	% of voting rights attached to shares (total of 9.A)	% of voting rights through financial instruments (total of 9.B.1 + 9.B.2)	Total of both in % (9.A + 9.B)	Total number of voting rights of issuervii
Resulting situation on the date on which threshold was	0.507%	3.533%	4.040%	2,328,692,340

crossed or reached
Position of previous
notification (if	0.668%	3.276%	3.944%
applicable)

9. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii:
A: Voting rights attached to shares
Class/type of shares	Number of voting rightsix		% of voting rights
ISIN code (if possible)	Direct	Indirect	Direct	Indirect
IE00BF0L3536	n/a	11,797,223	n/a	0.507%
SUBTOTAL A n/a 11,797,223 n/a 0.507%

B 1: Financial Instruments according to Regulation 17(1)(a) of the Regulations
Type of financial instrument	Expiration datex	Exercise/ Conversion Periodxi	Number of voting rights that may be acquired if the instrument is exercised/converted.	% of voting rights
Right to Recall	n/a	n/a	11,843	0.000%
Physical Swaps	26/09/2024 - 22/04/2025	n/a	19,163,344	0.823%
		SUBTOTAL B.1	19,175,187	0.823%

B 2: Financial Instruments with similar economic effect according to Regulation 17(1)(b) of the Regulations

Type of financial instrument	Expiration date	Exercise/con version period	Physical or cash settlement	Number of voting rights	% of voting rights
Swap	02/04/2025	n/a	Cash	30,124,066	1.294
Swap	02/05/2025	n/a	Cash	7,384,408	0.317
Swap	15/01/2026	n/a	Cash	802,228	0.034

			SUBTOTAL B.2	63,102,390	2.710%
Swap	24/01/2025	n/a	Cash	74,881	0.003
Swap	25/10/2024	n/a	Cash	4,801,608	0.206
Swap	13/11/2025	n/a	Cash	92,825	0.004
Swap	31/01/2025	n/a	Cash	7,914	0.000
Swap	29/08/2025	n/a	Cash	21,733	0.001
Swap	16/10/2025	n/a	Cash	2,658,221	0.114
Swap	18/11/2024	n/a	Cash	1,326,502	0.057
Swap	19/06/2025	n/a	Cash	18,690	0.001
Swap	21/07/2025	n/a	Cash	6,115,582	0.263
Swap	15/02/2028	n/a	Cash	99,915	0.004
Swap	20/03/2025	n/a	Cash	639,583	0.027
Swap	12/06/2025	n/a	Cash	8,680,216	0.373
Swap	18/03/2026	n/a	Cash	455	0.000
Swap	08/09/2025	n/a	Cash	253,563	0.011

1. Information in relation to the person subject to the notification obligation (please tick the applicable box):

[ ] Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer.xiii

[X] Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv:

% of voting rights if it Namexv equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
--------------------------------------------------------------------------------------------	-------------------------------------------------------------------------------------------------------------------	-----------------------------------------------------------------------------

Bank of America
Corporation
NB Holdings Corporation
BAC North America
Holding Company
Bank of America, National
Association
Bank of America
Corporation
NB Holdings Corporation
BofA Securities, Inc.
Bank of America Corporation
NB Holdings Corporation
BAC North America Holding Company
Merrill Lynch, Pierce,
Fenner & Smith
Incorporated
Managed Account Advisors LLC
Bank of America Corporation

	11. In case of proxy voting: [name of the proxy holder] will cease to hold [% and number] voting rights as of [date]

Done at London, United Kingdom on 25th September 2024.