AIB Group Plc

Major Shareholding Notification • Nov 13, 2025

Note: Late Notification by Shareholder

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
	[ ] 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	% of voting rights through financial	Total of both in %	Total number of
	attached to shares (total of 9.A)	instruments	(9.A + 9.B)	voting rights of issuervii
		(total of 9.B.1 + 9.B.2)
Resulting situation on the date on which	3.14%	0%	3.14%	73,184,513
threshold was crossed or reached

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 Exercise/ datex 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	N/A	N/A
B.2

• 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 InvestmentsInternational
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.