Aib Group Regulatory News (AIBG)

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:4 March 2025

6. Date on which issuer notified:12 November 2025

7. Threshold(s) that is/are crossed or reached:3% 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

3.14%

0%

3.14%

73,184,513

Position of previous notification (if applicable)

N/A

N/A

N/A

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

73,184,513

0%

3.14%

SUBTOTAL A

73,184,513

3.14%

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 Global Investors, LLC

3.14%

3.14%

Principal Financial Services Inc.

National Bank of the Republic of Kazakhstan - Global Index Equity

Principal Funds, Inc. - Overseas Fund

Principal Funds, Inc. - International Equity Index Fund

Principal Diversified International Separate Account

Principal Financial Services International ADR

L3Harris Pension Master Trust

Inter-American Development Bank Postretirement Benefits Plan International Core Equity

Knights of Columbus Master Trust

Principal Global Investors Collective Investment Trust - International Equity Fund

Principal Funds, Inc. - International Equity Fund

Principal Exchange-Traded Funds - Principal International Equity ETF

Principal Funds, Inc. - Diversified International Fund

Principal Variable Contracts Funds, Inc. - Diversified International Account

Inter-American Development Bank Staff Retirement Plan International Core Equity

CIBC Global Equity Private Pool

Principal MPF European Equity Fund

Principal Global Investors Collective Investment Trust - Diversified International Equity Fund

Board of Administration of the City of Memphis Retirement System

Catholic Responsible Investments International Equity Fund

Principal Life Style Fund - Principal European Equity Fund PI

City of Fresno Retirement Systems

Boilermakers National Annuity Trust

Principal Life Style Fund - Principal International Equity Fund PI

Principal Global Investors Funds - European Responsible Equity Fund

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:

Principal Global Investors, LLC ("PGI") is an investment adviser registered with the U.S. Securities and Exchange Commission under the US Investment Advisers Act of 1940. As such, pursuant to advisory contracts, PGI has the power to purchase and sell securities on behalf of its clients and the power to vote for most clients. Persons other than PGI are entitled to receive all dividends from, and proceeds from the sale of all securities reported hereunder.

PGI provides this TR1 form as of 12 November 2025, as original TR1 form (submitted on 6 March 2025) was inadvertently sent to an incorrect email address.