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AIB Group Plc

Major Shareholding Notification • Nov 13, 2025

1950_rns_2025-11-13_efc30172-653b-4e48-abc9-c027848b53ad.html

Major Shareholding Notification

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National Storage Mechanism | Additional information

RNS Number : 4896H

AIB Group PLC

13 November 2025

Note: Late Notification by Shareholder

Standard Form TR-1

Standard form for notification of major holdings
Text Box: 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

[ ] 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: Principal Global Investors, LLC City and country of registered office (if applicable):

Des Moines, Iowa (United States)
4. Full name of shareholder(s)(if different from 3.)v:
5. Date on which the threshold was crossed or reachedvi:31 October 2025
6. Date on which issuer notified:12 November 2025
7. Threshold(s) that is/are crossed or reached:5% of Regulatory requirement under the Transparency Regulations 2007
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 4.98% 0% 4.98% 2,136,766,718
Position of previous notification (if applicable) 5.02% 0% 5.02%
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
Ordinary Shares (ISIN:

IE00BF0L3536)		 0 106,424,730 0 4.98%
SUBTOTAL A 106,424,730 4.98%
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
N/A N/A N/A N/A N/A
SUBTOTAL B.1 N/A N/A
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
N/A N/A N/A N/A N/A N/A
SUBTOTAL B.2 N/A N/A
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
Principal Financial Group
Principal Financial Services Inc.
Principal Global Investors Holding Company (US) LLC
Principal Global Investors, LLC 4.98% 4.98%
Text Box: 11. In case of proxy voting: [name of the proxy holder] will cease to hold [% and number] voting rights as of [date]
Text Box: 12. Additional informationxvi: Principal Global Investors, LLC (“PGI”) is an investment adviser registered with the U.S. Securities and Exchange Commission under the U.S. Investment Advisers Act of 1940. Principal Financial Group is the parent entity for a group of investment management companies, the chain of which is set out above (in section 10) and includes Principal Global Investors LLC, which is acting on behalf of various clients. Some of these clients, pursuant to advisory contracts, provide the power to PGI to vote their shares at its own discretion (i.e. without specific written instructions). The shares reported on this notification are owned by accounts under the investment management of PGI. PGI provides this TR1 form as of 12 November 2025, as original TR1 form (submitted on 03 November 2025) was inadvertently sent to an incorrect email address.

Done at Des Moines, Iowa on 3rd November 2025.

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