REG - Auto Trader Grp - Transaction in Own Shares

2 September 2025

Auto Trader Group plc ("Auto Trader" or the "Company")

Auto Trader Group plc Transaction in Own Shares

Auto Trader Group plc (the "Company") announces that on 2 September 2025 it purchased through Merrill Lynch International the following number of its ordinary shares for Cancellation at an average price of 773.4007 pence per share:

Number of ordinary shares purchased:

281,100

Highest purchase price paid per share:

792.6000p

Lowest purchase price paid per share:

770.8000p

Following the above transaction, the Company has 877,713,658 ordinary shares in issue and holds 5,236,671 ordinary shares in treasury. Therefore, the total number of voting rights in the Company is 872,476,987 which may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Auto Trader Group plc under the FCA's Disclosure Guidance and Transparency Rules.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), the schedule below contains detailed information about the purchases made by Merrill Lynch International on behalf of the Company as part of the buyback programme.

Enquiries:

Auto Trader Group plc

Claire Baty, Company Secretary

     0345 111 0006

Schedule of Purchases - Individual Transactions

Number of shares purchased

Transaction price (per share)

Time of transaction

Execution venue

278

792.6

08:14:13

XLON

237

789.4

08:26:40

XLON

42

789.4

08:27:30

XLON

325

789.2

08:27:30

XLON

422

789

08:30:01

XLON

415

787.8

08:30:40

XLON

302

786.2

08:36:31

XLON

511

783.6

08:47:05

XLON

657

783.2

08:47:46

XLON

100

782.6

08:47:48

XLON

139

782.6

08:47:48

XLON

262

782.6

08:47:48

XLON

395

782.4

08:53:57

XLON

355

782.6

09:02:48

XLON

312

782.4

09:04:09

XLON

285

780.8

09:08:15

XLON

465

781.4

09:17:31

XLON

729

781.6

09:17:31

XLON

573

781

09:17:40

XLON

339

780.4

09:18:31

XLON

352

780.2

09:19:00

XLON

376

782

09:23:29

XLON

480

781.8

09:23:31

XLON

49

782.2

09:26:56

XLON

308

782.2

09:26:56

XLON

558

782.4

09:26:56

XLON

743

782

09:31:59

XLON

307

781

09:35:11

XLON

314

780.8

09:42:49

XLON

520

779

09:43:14

XLON

402

780.8

09:47:05

XLON

3,093

780.6

09:47:05

XLON

590

781.6

09:54:19

XLON

1,259

781.6

09:54:19

XLON

1,922

781.8

09:54:19

XLON

1,917

781

09:56:26

XLON

265

780.6

09:56:27

XLON

1,249

780.6

09:56:27

XLON

339

780.4

09:56:30

XLON

200

780.4

09:56:31

XLON

771

780.4

09:56:31

XLON

106

780

09:57:40

XLON

476

780

09:57:40

XLON

833

779.8

09:57:40

XLON

323

779.4

09:58:35

XLON

7

779.4

09:59:31

XLON

359

779.2

10:00:40

XLON

398

778.8

10:00:43

XLON

357

777.4

10:03:31

XLON

377

777

10:03:58

XLON

115

776.4

10:07:29

XLON

295

776.4

10:07:29

XLON

324

775.8

10:15:31

XLON

291

776.6

10:28:10

XLON

289

776.2

10:33:45

XLON

394

776.4

10:33:45

XLON

309

775.8

10:33:49

XLON

990

775.6

10:33:49

XLON

666

775.4

10:33:50

XLON

402

775

10:37:15

XLON

433

774.8

10:42:38

XLON

534

774.4

10:45:41

XLON

474

774

10:51:32

XLON

412

773.6

11:00:48

XLON

845

773.8

11:00:48

XLON

509

773.2

11:00:50

XLON

443

773

11:00:59

XLON

421

772.6

11:05:37

XLON

308

773.8

11:27:04

XLON

404

773.6

11:27:05

XLON

755

775

11:33:30

XLON

991

775.2

11:33:30

XLON

776

774.8

11:33:58

XLON

440

775

11:38:56

XLON

576

774.8

11:42:53

XLON

51

774.6

11:43:01

XLON

385

774.6

11:43:01

XLON

504

778

12:01:49

XLON

242

778

12:02:42

XLON

437

778

12:02:42

XLON

473

777.4

12:08:24

XLON

727

778

12:08:24

XLON

781

777.6

12:08:24

XLON

945

777.4

12:08:24

XLON

500

777

12:15:06

XLON

1,105

777

12:15:06

XLON

1,203

777.6

12:17:56

XLON

62

777.4

12:18:30

XLON

1,092

777.4

12:18:30

XLON

1,378

776.8

12:27:31

XLON

321

776.6

12:29:41

XLON

2,243

776.6

12:29:41

XLON

1,288

776.4

12:29:42

XLON

1,802

776.4

12:29:42

XLON

100

776

12:40:38

XLON

138

776

12:40:38

XLON

685

776

12:40:38

XLON

837

776

12:40:38

XLON

343

777

12:45:57

XLON

289

777.2

12:52:24

XLON

677

777

12:52:59

XLON

180

777.2

12:58:28

XLON

223

777.2

12:58:28

XLON

539

777

12:59:30

XLON

835

776.8

13:01:35

XLON

2,396

776.8

13:01:35

XLON

3,056

776.4

13:02:42

XLON

1,155

776.8

13:19:54

XLON

1,675

776.6

13:19:54

XLON

24

776.2

13:21:13

XLON

230

776

13:21:13

XLON

416

776

13:21:13

XLON

600

776

13:21:13

XLON

1,520

776.2

13:21:13

XLON

1,002

775.6

13:24:36

XLON

69

775.4

13:25:25

XLON

1,717

775.4

13:25:25

XLON

2,373

775.2

13:25:25

XLON

419

774.4

13:26:02

XLON

604

774.6

13:26:02

XLON

796

774.8

13:26:02

XLON

335

773.8

13:36:19

XLON

1,015

773.6

13:37:22

XLON

134

773.4

13:39:18

XLON

444

773.4

13:39:18

XLON

340

772.8

13:41:20

XLON

421

773

13:41:20

XLON

441

772.2

13:42:54

XLON

139

772.6

13:48:08

XLON

143

772.6

13:48:08

XLON

307

772.4

13:48:09

XLON

396

772.2

13:54:53

XLON

355

772

13:55:36

XLON

284

772.2

14:01:30

XLON

514

772

14:02:15

XLON

325

772.6

14:12:54

XLON

385

772.4

14:13:22

XLON

60

772.2

14:16:56

XLON

249

772.2

14:16:56

XLON

78

771.6

14:18:26

XLON

311

771.8

14:18:26

XLON

378

771.8

14:18:26

XLON

474

771.6

14:18:26

XLON

367

771

14:24:09

XLON

171

770.8

14:24:13

XLON

355

770.8

14:24:13

XLON

1,365

774

14:46:07

XLON

1,918

773.8

14:46:30

XLON

526

773.6

14:46:40

XLON

766

774

14:55:27

XLON

1,978

773.8

14:55:40

XLON

545

774

15:02:09

XLON

451

774.4

15:05:49

XLON

1,374

774.4

15:05:49

XLON

1,128

775

15:13:46

XLON

440

776.6

15:25:58

XLON

2,994

776.4

15:27:41

XLON

3,397

777.2

15:33:08

XLON

923

777.6

15:38:29

XLON

970

777.4

15:38:34

XLON

332

777.2

15:43:52

XLON

613

776.8

15:43:52

XLON

814

777

15:43:52

XLON

481

776.4

15:45:27

XLON

749

776.6

15:45:27

XLON

435

776.2

15:45:28

XLON

623

775.4

15:49:34

XLON

348

775.2

15:49:35

XLON

433

775

15:50:07

XLON

454

774.6

15:51:19

XLON

283

774

15:53:02

XLON

330

774.2

15:53:27

XLON

363

774.4

15:55:11

XLON

536

774.6

16:01:10

XLON

465

774.4

16:04:34

XLON

950

774

16:05:20

XLON

614

773.8

16:08:34

XLON

284

773.6

16:08:46

XLON

1,965

773.6

16:09:48

XLON

2,868

773.4

16:09:48

XLON

287

773.6

16:11:24

XLON

2,140

773.4

16:14:31

XLON

444

773.2

16:14:44

XLON

479

773

16:14:48

XLON

1,356

772.8

16:14:48

XLON

466

773.2

16:22:20

XLON

484

773

16:22:32

XLON

428

772.6

16:26:14

XLON

465

772.6

16:26:14

XLON

317

772.4

16:26:17

XLON

13

773.2

16:29:01

XLON

211

773.2

16:29:01

XLON

428

773.2

16:29:01

XLON

23

773.2

16:29:15

XLON

117

773.2

16:29:15

XLON

428

773.2

16:29:15

XLON

69

773.2

16:29:23

XLON

355

773.2

16:29:23

XLON

404

773.2

16:29:32

XLON

24

773.2

16:29:37

XLON

72

773.2

16:29:37

XLON

81

773.2

16:29:37

XLON

253

773.2

16:29:37

XLON

418

772.8

16:29:45

XLON

140

773

16:29:49

XLON

428

773

16:29:49

XLON

166

773

16:29:53

XLON

256

773

16:29:53

XLON

1

770.8

16:35:10

XLON

4

770.8

16:35:10

XLON

19

770.8

16:35:10

XLON

48

770.8

16:35:10

XLON

63

770.8

16:35:10

XLON

183

770.8

16:35:10

XLON

263

770.8

16:35:10

XLON

329

770.8

16:35:10

XLON

350

770.8

16:35:10

XLON

434

770.8

16:35:10

XLON

553

770.8

16:35:10

XLON

554

770.8

16:35:10

XLON

921

770.8

16:35:10

XLON

1,035

770.8

16:35:10

XLON

1,141

770.8

16:35:10

XLON

1,228

770.8

16:35:10

XLON

1,346

770.8

16:35:10

XLON

1,835

770.8

16:35:10

XLON

1,911

770.8

16:35:10

XLON

1,920

770.8

16:35:10

XLON

2,836

770.8

16:35:10

XLON

4,005

770.8

16:35:10

XLON

7,658

770.8

16:35:10

XLON

9,030

770.8

16:35:10

XLON

15,495

770.8

16:35:10

XLON

15,527

770.8

16:35:10

XLON

16,580

770.8

16:35:10

XLON

66,717

770.8

16:35:10

XLON