AIB Group Plc — Major Shareholding Notification 2025

Sep 12, 2025

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

2. Reason for the notification (please tick the appropriate box or boxes):

[ X ] 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)iii:

3. Details of person subject to the notification obligationiv :

Name:

BlackRock, Inc.

City and country of registered office (if applicable):

Wilmington, DE, U.S.A.

4. Full name of shareholder(s) (if different from 3.)^v :

5. Date on which the threshold was crossed or reachedvi:

11/09/2025

6. Date on which issuer notified:

12/09/2025

7. Threshold(s) that is/are crossed or reached:

Total holdings for BlackRock, Inc. have gone above 10%.

8. 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 crossed or reached	9.09%	0.90%	10.00%	2,136,766,718

Position of previous notification (if applicable)	9.07%	0.75%	9.82%

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 ISIN code (if possible)	Number of voting rightsix		% of voting rights
	Direct	Indirect	Direct	Indirect
IE00BF0L3536		194,409,105		9.09%
SUBTOTAL A	194,409,105		9.09%

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
American Depository Receipts	N/A	N/A	13,448	0.00%
			13,448	0.00%

B 2: Financial Instruments with similar economic effect according to Regulation 17(1)(b) of the Regulations
Type of financial instrument	Expiration datex	Exercise/ Conversion Period xi	Physical or cash settlementxii	Number of voting rights	% of voting rights
CFD	N/A	N/A	Cash	19,316,628	0.90%
			SUBTOTAL B.2	19,316,628	0.90%

10. 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:

Namexv	% of voting rights if it 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
See attachment

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

12. Additional informationxvi:

Done at 12 Throgmorton Avenue, London, EC2N 2DL, U.K. on 12 September 2025

Namexv	% of voting rights if it 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
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock (Singapore) Holdco Pte. Ltd.
BlackRock HK Holdco Limited
BlackRock Lux Finco S.a.r.l.
BlackRock Japan Holdings GK
BlackRock Japan Co., Ltd.
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
Trident Merger, LLC
BlackRock Investment Management, LLC
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.

BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited
BlackRock Finance Europe Limited
BlackRock Investment Management (UK) Limited	3.36%	0.83%	4.20%
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Australia Holdco Pty. Ltd.
BlackRock Investment Management (Australia) Limited
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock Holdco 4, LLC
BlackRock Holdco 6, LLC

BlackRock Delaware Holdings Inc.
BlackRock Institutional Trust Company, National Association
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock Holdco 4, LLC
BlackRock Holdco 6, LLC
BlackRock Delaware Holdings Inc.
BlackRock Fund Advisors
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock (Singapore) Holdco Pte. Ltd.
BlackRock HK Holdco Limited

BlackRock Asset Management North Asia Limited
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited
BlackRock Finance Europe Limited
BlackRock (Netherlands) B.V.
BlackRock Asset Management Deutschland AG
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BlackRock Canada Holdings ULC
BlackRock Asset Management Canada Limited
BlackRock, Inc.
BlackRock Saturn Subco, LLC

BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock Capital Holdings, Inc.
BlackRock Advisors, LLC
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock Holdco 3, LLC
BlackRock Cayman 1 LP
BlackRock Cayman West Bay Finco Limited
BlackRock Cayman West Bay IV Limited
BlackRock Group Limited
BlackRock Finance Europe Limited
BlackRock Advisors (UK) Limited
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
BlackRock Holdco 2, Inc.
BlackRock Financial Management, Inc.
BlackRock International Holdings, Inc.
BR Jersey International Holdings L.P.
BlackRock (Singapore) Holdco Pte. Ltd.

BlackRock (Singapore) Limited
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
Trident Merger, LLC
BlackRock Investment Management, LLC
Amethyst Intermediate, LLC
Aperio Holdings, LLC
Aperio Group, LLC
BlackRock, Inc.
BlackRock Saturn Subco, LLC
BlackRock Finance, Inc.
Trident Merger, LLC
Web Holdings, LLC
SpiderRock Advisors, LLC