Transaction in Own Shares

Bank of Ireland Group plc - Completion of €590m share buyback programme

Bank of Ireland Group plc ("BOIG") today announces that on Tuesday, 21 October 2025 it purchased the following number of its ordinary shares (the "shares") on Euronext Dublin, from BOIG's broker, UBS AG London Branch ("UBS"). The shares purchased will be cancelled.

Euronext Dublin

Number of shares purchased:

105,090

Highest price paid per share:

€13.2700

Lowest price paid per share:

€13.1650

Volume weighted average price paid:

€13.2020

These share purchases form part of BOIG's intention to buy back up to €590 million of shares as part of the buy-back programme announced on 25 February 2025 (the "Programme").The Group announces that following the purchase of these shares, the Programme has successfully been completed. Since the commencement of the Programme, the Group has repurchased 50,742,039 ordinary shares for cancellation at a volume weighted average price of €11.6098 per share for a total consideration of c.€590m.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (including as it forms part of retained EU law in the United Kingdom ("UK") from time to time, including, where relevant, pursuant to the UK's European Union (Withdrawal) Act 2018, a detailed breakdown of individual trades made by UBS on 21 October 2025 on behalf of BOIG as part of the Programme is scheduled to this announcement.

Contact:Sarah McLaughlinGroup SecretaryTel: +353 (0)87 4315242

Issuer name:

Bank of Ireland Group plc

LEI:

635400C8EK6DRI12LJ39

ISIN:

IE00BD1RP616

Intermediary name:

UBS Europe SE

Intermediary code:

5299007QVIQ7IO64NX37

Time zone:

BST

Currency:

EUR

Number of Shares

Gross Price per Share

Currency

Trade time

Exchange

Trade ID

932

13.26

EUR

08:01:20

Euronext Dublin

2164396

796

13.27

EUR

08:02:00

Euronext Dublin

2165434

7

13.27

EUR

08:05:07

Euronext Dublin

2169759

959

13.27

EUR

08:07:31

Euronext Dublin

2172767

846

13.27

EUR

08:09:29

Euronext Dublin

2175384

523

13.22

EUR

08:25:22

Euronext Dublin

2194726

283

13.22

EUR

08:25:22

Euronext Dublin

2194724

579

13.24

EUR

08:43:03

Euronext Dublin

2217341

333

13.24

EUR

08:43:03

Euronext Dublin

2217339

854

13.23

EUR

08:44:10

Euronext Dublin

2218903

84

13.23

EUR

08:51:58

Euronext Dublin

2229452

816

13.24

EUR

08:54:58

Euronext Dublin

2233178

898

13.23

EUR

08:56:29

Euronext Dublin

2235327

810

13.23

EUR

09:01:11

Euronext Dublin

2242262

798

13.23

EUR

09:07:12

Euronext Dublin

2248725

514

13.21

EUR

09:13:16

Euronext Dublin

2257610

374

13.21

EUR

09:13:16

Euronext Dublin

2257608

1003

13.20

EUR

09:16:28

Euronext Dublin

2261108

252

13.20

EUR

09:17:22

Euronext Dublin

2261954

582

13.20

EUR

09:17:22

Euronext Dublin

2261950

100

13.20

EUR

09:17:22

Euronext Dublin

2261952

1079

13.20

EUR

09:17:22

Euronext Dublin

2261947

911

13.18

EUR

09:45:10

Euronext Dublin

2288626

1003

13.19

EUR

09:59:12

Euronext Dublin

2301494

978

13.19

EUR

10:16:29

Euronext Dublin

2317100

1067

13.21

EUR

10:30:08

Euronext Dublin

2329358

1064

13.23

EUR

10:40:16

Euronext Dublin

2339994

1055

13.21

EUR

11:00:23

Euronext Dublin

2357575

903

13.21

EUR

11:20:49

Euronext Dublin

2375252

1031

13.20

EUR

11:20:51

Euronext Dublin

2375303

900

13.21

EUR

11:31:32

Euronext Dublin

2384592

33

13.21

EUR

11:31:32

Euronext Dublin

2384590

384

13.23

EUR

11:50:09

Euronext Dublin

2401412

520

13.23

EUR

11:50:09

Euronext Dublin

2401410

883

13.23

EUR

11:50:09

Euronext Dublin

2401408

909

13.22

EUR

12:05:18

Euronext Dublin

2413146

1018

13.22

EUR

12:09:14

Euronext Dublin

2416035

70

13.22

EUR

12:16:55

Euronext Dublin

2422222

823

13.22

EUR

12:17:50

Euronext Dublin

2423049

234

13.21

EUR

12:18:08

Euronext Dublin

2423367

1071

13.20

EUR

12:18:29

Euronext Dublin

2423711

745

13.21

EUR

12:18:29

Euronext Dublin

2423709

412

13.20

EUR

12:25:13

Euronext Dublin

2430161

105

13.20

EUR

12:26:34

Euronext Dublin

2431279

615

13.20

EUR

12:26:34

Euronext Dublin

2431277

473

13.21

EUR

12:29:05

Euronext Dublin

2432739

714

13.21

EUR

12:29:05

Euronext Dublin

2432737

1006

13.21

EUR

12:29:45

Euronext Dublin

2433230

886

13.21

EUR

12:31:43

Euronext Dublin

2435955

285

13.21

EUR

12:33:32

Euronext Dublin

2437441

702

13.21

EUR

12:33:32

Euronext Dublin

2437443

252

13.21

EUR

12:34:07

Euronext Dublin

2437901

50

13.21

EUR

12:35:43

Euronext Dublin

2439392

708

13.21

EUR

12:35:43

Euronext Dublin

2439390

711

13.21

EUR

12:36:43

Euronext Dublin

2439989

235

13.21

EUR

12:37:00

Euronext Dublin

2440241

213

13.21

EUR

12:37:10

Euronext Dublin

2440408

26

13.21

EUR

12:37:10

Euronext Dublin

2440406

245

13.21

EUR

12:37:35

Euronext Dublin

2440724

38

13.22

EUR

12:39:11

Euronext Dublin

2441887

242

13.22

EUR

12:39:38

Euronext Dublin

2442276

209

13.22

EUR

12:40:01

Euronext Dublin

2442882

563

13.23

EUR

12:40:14

Euronext Dublin

2443029

563

13.23

EUR

12:40:17

Euronext Dublin

2443077

563

13.23

EUR

12:41:21

Euronext Dublin

2443903

580

13.23

EUR

12:42:09

Euronext Dublin

2444499

225

13.23

EUR

12:42:24

Euronext Dublin

2444751

70

13.23

EUR

12:42:58

Euronext Dublin

2445207

329

13.23

EUR

12:51:59

Euronext Dublin

2453196

563

13.23

EUR

12:51:59

Euronext Dublin

2453194

1226

13.23

EUR

12:51:59

Euronext Dublin

2453192

948

13.22

EUR

12:52:00

Euronext Dublin

2453216

1049

13.22

EUR

13:01:36

Euronext Dublin

2461677

869

13.20

EUR

13:06:52

Euronext Dublin

2465743

1

13.20

EUR

13:06:52

Euronext Dublin

2465741

4

13.20

EUR

13:14:36

Euronext Dublin

2472851

460

13.20

EUR

13:15:08

Euronext Dublin

2473930

565

13.20

EUR

13:15:08

Euronext Dublin

2473928

893

13.20

EUR

13:22:39

Euronext Dublin

2480604

1044

13.19

EUR

13:24:41

Euronext Dublin

2482311

981

13.21

EUR

13:36:39

Euronext Dublin

2496097

971

13.21

EUR

13:39:11

Euronext Dublin

2498589

960

13.21

EUR

13:46:33

Euronext Dublin

2506424

133

13.21

EUR

13:48:39

Euronext Dublin

2508442

751

13.21

EUR

13:48:39

Euronext Dublin

2508440

884

13.20

EUR

14:02:09

Euronext Dublin

2524809

932

13.20

EUR

14:02:09

Euronext Dublin

2524807

1154

13.19

EUR

14:04:09

Euronext Dublin

2527576

100

13.19

EUR

14:06:09

Euronext Dublin

2531085

205

13.19

EUR

14:06:09

Euronext Dublin

2531083

826

13.19

EUR

14:06:09

Euronext Dublin

2531081

400

13.19

EUR

14:06:09

Euronext Dublin

2531087

26

13.19

EUR

14:06:09

Euronext Dublin

2531089

93

13.18

EUR

14:06:20

Euronext Dublin

2531237

826

13.18

EUR

14:06:20

Euronext Dublin

2531235

415

13.18

EUR

14:06:20

Euronext Dublin

2531227

763

13.18

EUR

14:06:20

Euronext Dublin

2531225

660

13.18

EUR

14:07:42

Euronext Dublin

2533036

282

13.18

EUR

14:07:42

Euronext Dublin

2533038

37

13.19

EUR

14:09:52

Euronext Dublin

2534909

929

13.19

EUR

14:09:52

Euronext Dublin

2534907

1171

13.18

EUR

14:10:30

Euronext Dublin

2536515

1059

13.19

EUR

14:15:37

Euronext Dublin

2542681

950

13.19

EUR

14:16:32

Euronext Dublin

2543425

550

13.19

EUR

14:16:40

Euronext Dublin

2543568

1053

13.19

EUR

14:16:40

Euronext Dublin

2543562

1093

13.21

EUR

14:23:06

Euronext Dublin

2550956

848

13.21

EUR

14:25:14

Euronext Dublin

2554400

192

13.21

EUR

14:25:14

Euronext Dublin

2554402

460

13.20

EUR

14:30:31

Euronext Dublin

2567476

550

13.20

EUR

14:30:31

Euronext Dublin

2567474

372

13.20

EUR

14:30:31

Euronext Dublin

2567469

826

13.20

EUR

14:30:31

Euronext Dublin

2567467

1019

13.20

EUR

14:30:31

Euronext Dublin

2567462

921

13.20

EUR

14:30:31

Euronext Dublin

2567460

665

13.20

EUR

14:34:14

Euronext Dublin

2576457

351

13.20

EUR

14:34:14

Euronext Dublin

2576455

962

13.19

EUR

14:34:29

Euronext Dublin

2576942

279

13.19

EUR

14:37:10

Euronext Dublin

2584406

602

13.19

EUR

14:37:10

Euronext Dublin

2584402

1216

13.19

EUR

14:37:10

Euronext Dublin

2584404

7

13.20

EUR

14:38:11

Euronext Dublin

2586215

826

13.20

EUR

14:38:11

Euronext Dublin

2586210

100

13.20

EUR

14:38:17

Euronext Dublin

2586514

826

13.20

EUR

14:38:17

Euronext Dublin

2586512

1053

13.20

EUR

14:38:28

Euronext Dublin

2586815

182

13.20

EUR

14:38:28

Euronext Dublin

2586813

247

13.20

EUR

14:38:28

Euronext Dublin

2586811

1510

13.19

EUR

14:38:44

Euronext Dublin

2587236

938

13.20

EUR

14:41:00

Euronext Dublin

2592077

275

13.20

EUR

14:41:12

Euronext Dublin

2592517

354

13.20

EUR

14:41:12

Euronext Dublin

2592515

8

13.20

EUR

14:41:12

Euronext Dublin

2592513

826

13.20

EUR

14:41:12

Euronext Dublin

2592511

28

13.20

EUR

14:41:52

Euronext Dublin

2593521

498

13.20

EUR

14:41:52

Euronext Dublin

2593519

826

13.20

EUR

14:41:52

Euronext Dublin

2593517

938

13.20

EUR

14:41:52

Euronext Dublin

2593513

858

13.19

EUR

14:43:39

Euronext Dublin

2597513

1037

13.19

EUR

14:43:39

Euronext Dublin

2597515

70

13.19

EUR

14:43:39

Euronext Dublin

2597511

880

13.19

EUR

14:44:57

Euronext Dublin

2599535

543

13.18

EUR

14:45:16

Euronext Dublin

2601335

386

13.18

EUR

14:45:16

Euronext Dublin

2601333

956

13.18

EUR

14:46:16

Euronext Dublin

2603968

993

13.17

EUR

14:47:59

Euronext Dublin

2607964

869

13.17

EUR

14:50:02

Euronext Dublin

2614529

878

13.17

EUR

14:50:02

Euronext Dublin

2614527

1201

13.20

EUR

14:53:31

Euronext Dublin

2620996

100

13.20

EUR

14:53:31

Euronext Dublin

2620990

619

13.20

EUR

14:53:31

Euronext Dublin

2620988

1022

13.20

EUR

14:53:31

Euronext Dublin

2620992

2585

13.20

EUR

14:53:31

Euronext Dublin

2620994

4808

13.19

EUR

14:53:31

Euronext Dublin

2620984

567

13.19

EUR

14:56:33

Euronext Dublin

2627593

665

13.19

EUR

14:57:29

Euronext Dublin

2629104

619

13.19

EUR

14:58:33

Euronext Dublin

2631212

631

13.19

EUR

14:58:33

Euronext Dublin

2631198

138

13.18

EUR

14:58:53

Euronext Dublin

2631816

90

13.17

EUR

15:01:13

Euronext Dublin

2639988