AIB Group Plc — Major Shareholding Notification 2025

Nov 3, 2025

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Note: This submission to OAM is in respect of the regulatory announcement disclosed to the public via RNS on 04/10/2024 and filed with Euronext Dublin under reference number ANN137899.

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)

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are
attached:

AIB Group Public Limited Company

1. 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):

3. Details of person subject to the notification obligation:

Name:

Wellington Management Group LLP

City and country of registered office (if applicable):

c/o Wellington Management Company LLP, 280 Congress Street, Boston, MA 02210 USA

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

BNY Custodial Nominees (Ireland) Ltd.

BONY (Nominees) Ltd.

BP2S London

Brown Brothers Harriman

Chase Nominees Ltd.

Citibank NA

Goldman Sachs Securities (Nominees) Ltd.

Morgan Nominees Limited

Nortrust Nominees Limited

State Street Nominees Ltd.

USBK William Blair Wellington

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

03 Oct 2024

6. Date on which issuer notified:

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04 Oct 2024
7. Threshold(s) that is/are crossed or reached:
3%

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8. Total positions of person(s) subject to the notification obligation:
	% of voting rightsattached toshares(total of 9.A)	% of voting rightsthrough financialinstruments(total of 9.B.1 + 9.B.2)	Total of both in %(9.A + 9.B)	Total number ofvoting rights ofissuer
Resulting situation onthe date on whichthreshold wascrossed or reached	2.91%	0.00%	2.92%	2,328,692,340
Position of previousnotification (ifapplicable)	3.01%	0.00%	3.01%

9. Notified details of the resulting situation on the date on which the threshold was crossed or reached:

A: Voting rights attached to shares

Class/type of	Number of voting rights	% of voting rights
shares ISINcode (ifpossible)	Direct	Indirect	Direct	Indirect
IE00BF0L3536Common Stock		67,983,229		2.91%
SUBTOTAL A	67,983,229			2.91%

B 1: Financial Instruments according to Regulation 17(1)(a) of the Regulations
Type offinancialinstrument	Expiration date	Exercise/ConversionPeriod	Number of voting rights% of votingthat may be acquired if therightsinstrument isexercised/converted
SUBTOTAL B.1

B 2: Financial Instruments with similar economic effect according to Regulation 17(1)(b) of theRegulations
Type of	Expiration date	Exercise/	Physical or	Number of	% of voting

Type offinancialinstrument	Expiration date	Exercise/ConversionPeriod	Physical orcashsettlement	Number ofvoting rights	% of votingrights
Equity Swap	05 May 2028	05 May 2028	Cashsettlement	109,693 EquitySwap sharesor 109,693votes on aconvertedbasis	0.00%
Equity Swap	20 May 2033	20 May 2033	Cashsettlement	2,951 EquitySwap sharesor 2,951 votes	0.00%

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		on a converted basis
	SUBTOTALB.2	112,644	0.00%

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• 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.
• 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 entity:

Name	% of voting rights ifit equals or is higherthan the notifiablethreshold	% of voting rightsthrough financialinstruments if itequals or is higherthan the notifiablethreshold	Total of both if itequals or is higherthan the notifiablethreshold
Wellington Management GroupLLP
Wellington Group HoldingsLLP
Wellington InvestmentAdvisors Holdings LLP
Wellington ManagementGlobal Holdings, Ltd.
Wellington ManagementInternational Ltd
Wellington Management GroupLLP
Wellington Group HoldingsLLP
Wellington InvestmentAdvisors Holdings LLP
Wellington ManagementCompany LLP
Wellington Management GroupLLP
Wellington Group HoldingsLLP
Wellington InvestmentAdvisors Holdings LLP
Wellington ManagementGlobal Holdings, Ltd.
Wellington ManagementEurope GmbH

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

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12. Additional information:

Done in London on 04 Oct 2024.

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