Transaction in Own Shares

3 June 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 3 June 2025 it purchased through Merrill Lynch International the following number of its ordinary shares for Cancellation at an average price of 803.3670 pence per share:

Number of ordinary shares purchased:

715,500

Highest purchase price paid per share:

812.8000p

Lowest purchase price paid per share:

796.6000p

Following the above transaction, the Company has 880,543,139 ordinary shares in issue and holds 4,551,745 ordinary shares in treasury. Therefore, the total number of voting rights in the Company is 875,991,394 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

415

801.2

08:04:36

XLON

3

805.2

08:12:54

XLON

653

805.2

08:12:54

XLON

556

804.6

08:13:22

XLON

946

804.6

08:13:22

XLON

1,040

804.2

08:14:41

XLON

653

803.6

08:14:57

XLON

914

803.2

08:14:59

XLON

386

802.2

08:17:12

XLON

288

801.6

08:18:15

XLON

364

801.4

08:18:24

XLON

334

800.4

08:19:37

XLON

460

800.8

08:19:37

XLON

404

799.6

08:21:51

XLON

316

799.2

08:21:54

XLON

292

798.8

08:24:14

XLON

427

799

08:24:14

XLON

1,829

799.4

08:28:12

XLON

1,958

798.8

08:28:19

XLON

483

799.8

08:31:33

XLON

1,699

799.8

08:31:33

XLON

73

799.2

08:31:46

XLON

2,123

799.2

08:31:46

XLON

469

798.8

08:32:54

XLON

660

798.8

08:32:56

XLON

1,102

798.8

08:32:56

XLON

1,340

798.4

08:32:59

XLON

179

798

08:33:56

XLON

497

798

08:33:56

XLON

1,051

798

08:33:56

XLON

961

797.4

08:34:28

XLON

1,159

797

08:36:40

XLON

1,075

797.6

08:44:12

XLON

1,859

797

08:46:20

XLON

1,198

796.6

08:48:31

XLON

1,429

802.2

09:01:30

XLON

2,290

803.4

09:03:23

XLON

2,185

803

09:05:55

XLON

466

802

09:07:04

XLON

1,727

802

09:07:04

XLON

2,235

802.4

09:07:04

XLON

2,249

801.4

09:09:43

XLON

2,247

801

09:11:51

XLON

2,277

803.4

09:19:34

XLON

2,266

805.4

09:23:55

XLON

2,149

806

09:28:30

XLON

2,256

805.6

09:28:30

XLON

2,202

805.4

09:28:31

XLON

1,163

805.2

09:28:32

XLON

492

805.4

09:38:10

XLON

431

805

09:39:31

XLON

505

805

09:39:31

XLON

679

804.8

09:39:31

XLON

1,679

804.4

09:39:33

XLON

1,371

806.8

09:45:25

XLON

1,715

806.4

09:45:26

XLON

865

806

09:46:00

XLON

1,382

808

09:56:05

XLON

2,170

807.6

09:56:58

XLON

812

809.8

10:06:44

XLON

2,191

809.4

10:10:35

XLON

393

812.6

10:15:15

XLON

1,900

812.6

10:15:15

XLON

2,289

812.2

10:15:21

XLON

2,308

811.6

10:16:01

XLON

620

811.2

10:16:06

XLON

1,568

811.2

10:16:06

XLON

1,857

810.6

10:16:16

XLON

353

810.6

10:16:18

XLON

2,266

810.8

10:18:34

XLON

4,515

810.2

10:22:20

XLON

864

810.2

10:30:38

XLON

1,289

810.2

10:30:38

XLON

685

811.2

10:39:45

XLON

1,400

811.2

10:39:45

XLON

326

810.8

10:40:29

XLON

1,951

810.8

10:40:29

XLON

2,175

810.6

10:43:31

XLON

1,871

810

10:44:49

XLON

2,236

809.4

10:46:34

XLON

2,171

809.2

10:46:52

XLON

258

808.6

10:54:07

XLON

1,984

808.6

10:54:07

XLON

573

808.4

10:54:09

XLON

1,642

808.4

10:54:09

XLON

71

812.6

11:12:13

XLON

2,171

812.6

11:12:13

XLON

634

812.2

11:17:13

XLON

1,640

812.2

11:17:13

XLON

391

812.8

11:25:52

XLON

1,695

812.8

11:25:52

XLON

2,240

812.6

11:31:30

XLON

4,402

812

11:34:03

XLON

2,294

811.6

11:36:29

XLON

2,113

811.6

11:41:40

XLON

418

811

11:41:44

XLON

1,843

811

11:41:44

XLON

2,286

811.2

11:41:44

XLON

162

810.8

11:50:32

XLON

2,035

810.8

11:50:32

XLON

321

810.2

11:50:48

XLON

1,894

810.2

11:50:48

XLON

2,208

810.4

11:50:48

XLON

2,176

810.8

11:58:57

XLON

1,018

810.4

12:02:00

XLON

1,073

810.4

12:02:00

XLON

82

811

12:12:26

XLON

2,200

811

12:12:26

XLON

1,849

810.6

12:20:59

XLON

618

810.4

12:32:20

XLON

3,812

810

12:32:23

XLON

123

810

12:38:24

XLON

2,097

810

12:38:24

XLON

443

809.4

12:43:48

XLON

993

809.4

12:43:48

XLON

3,004

809.4

12:43:48

XLON

2,243

810.2

13:00:26

XLON

967

811.2

13:03:45

XLON

1,300

811.2

13:03:45

XLON

814

810.8

13:04:53

XLON

1,387

810.8

13:04:53

XLON

2,214

810.2

13:05:00

XLON

1,489

809.6

13:05:36

XLON

230

810

13:11:01

XLON

1,400

810

13:11:01

XLON

660

810.8

13:18:03

XLON

1,000

810.8

13:18:03

XLON

2,244

810.4

13:21:07

XLON

757

810.6

13:31:03

XLON

767

810.6

13:31:03

XLON

468

810.4

13:31:06

XLON

606

810

13:31:11

XLON

2,244

809.8

13:31:14

XLON

1,631

809.6

13:37:02

XLON

628

809.4

13:37:05

XLON

289

809.8

13:40:37

XLON

364

809.8

13:40:45

XLON

422

809.8

13:41:02

XLON

597

809.6

13:41:03

XLON

3,960

809

13:43:01

XLON

194

807.8

13:44:28

XLON

1,993

807.8

13:44:28

XLON

2,174

806.8

13:44:36

XLON

2,212

807.4

13:44:36

XLON

597

807.6

14:00:21

XLON

1,564

807.6

14:00:21

XLON

26

808.4

14:01:40

XLON

2,249

808.4

14:01:40

XLON

500

808

14:05:35

XLON

1,740

808

14:05:35

XLON

780

808.2

14:12:29

XLON

222

809.4

14:13:40

XLON

430

809.4

14:13:40

XLON

296

809.4

14:14:04

XLON

1,030

809

14:15:27

XLON

902

809.2

14:19:39

XLON

1,029

809.4

14:22:22

XLON

684

809.4

14:22:47

XLON

788

809.6

14:25:03

XLON

1,089

809.6

14:25:03

XLON

528

809.6

14:25:12

XLON

1,065

809.6

14:25:12

XLON

62

809.4

14:25:32

XLON

478

809.4

14:25:32

XLON

79

809.2

14:25:33

XLON

968

809.2

14:25:34

XLON

2,014

808.6

14:26:05

XLON

69

809

14:30:01

XLON

400

809

14:30:01

XLON

292

809.6

14:33:56

XLON

1,134

809.4

14:33:56

XLON

1,200

809.6

14:33:56

XLON

1,796

809.2

14:33:56

XLON

883

808.4

14:35:04

XLON

708

808.8

14:36:01

XLON

35

808.8

14:36:29

XLON

655

808.8

14:36:29

XLON

1,144

808.6

14:38:54

XLON

779

808.4

14:40:29

XLON

2,000

808

14:40:31

XLON

2,451

808

14:40:31

XLON

75

807.4

14:40:59

XLON

93

807.6

14:40:59

XLON

213

807.6

14:40:59

XLON

415

807.6

14:40:59

XLON

1,175

808.2

14:40:59

XLON

1,968

807.6

14:40:59

XLON

346

807.4

14:41:00

XLON

500

807.2

14:41:00

XLON

606

807.4

14:41:00

XLON

873

807.4

14:41:00

XLON

1,674

807.2

14:41:00

XLON

432

807

14:41:06

XLON

2,218

806.6

14:41:06

XLON

378

807.6

14:42:41

XLON

614

807.6

14:42:52

XLON

720

807.8

14:42:52

XLON

697

807.6

14:43:03

XLON

785

808

14:44:36

XLON

302

808.6

14:45:59

XLON

669

809

14:46:43

XLON

431

809

14:47:10

XLON

957

808.2

14:49:20

XLON

1,259

808

14:49:20

XLON

779

807.8

14:49:21

XLON

1,441

807.8

14:49:21

XLON

195

807

14:49:46

XLON

908

807

14:49:46

XLON

287

807.8

14:51:21

XLON

1,926

808

14:57:50

XLON

105

808.2

15:00:20

XLON

1,300

808.2

15:00:20

XLON

3,104

807.8

15:00:38

XLON

1,373

807.4

15:00:45

XLON

2,243

807

15:01:00

XLON

2,211

806.6

15:01:03

XLON

312

806.2

15:01:44

XLON

1,964

806.2

15:01:44

XLON

282

805.8

15:02:00

XLON

1,908

805.8

15:02:00

XLON

740

805.8

15:02:18

XLON

686

806.4

15:02:56

XLON

1,973

807.2

15:04:14

XLON

913

808.2

15:07:48

XLON

2,003

807.6

15:09:09

XLON

793

808.8

15:11:03

XLON

255

808

15:12:03

XLON

1,994

808

15:12:03

XLON

2,171

808.4

15:12:03

XLON

526

807.2

15:13:23

XLON

1,700

807.2

15:13:23

XLON

336

807

15:13:28

XLON

365

807

15:13:28

XLON

2,296

806.6

15:13:28

XLON

886

806

15:13:36

XLON

1,403

806

15:13:36

XLON

2,129

806.2

15:13:36

XLON

23

806

15:16:20

XLON

111

805.6

15:16:20

XLON

2,200

806

15:16:20

XLON

2,160

805.6

15:16:50

XLON

2,255

805.4

15:16:50

XLON

346

805

15:19:09

XLON

1,905

805

15:19:09

XLON

2,187

804.6

15:19:13

XLON

1,090

804

15:21:02

XLON

1,171

804

15:21:02

XLON

395

803.8

15:21:05

XLON

1,654

803.8

15:21:05

XLON

343

803.2

15:22:30

XLON

1,456

803.2

15:22:30

XLON

708

802.8

15:24:30

XLON

640

802.4

15:25:13

XLON

920

802

15:25:53

XLON

625

801.8

15:25:57

XLON

1,046

801.4

15:26:39

XLON

689

801.6

15:30:46

XLON

881

801.2

15:31:00

XLON

549

801

15:31:23

XLON

2,147

800.6

15:31:42

XLON

1,602

800

15:33:33

XLON

100

799.8

15:34:06

XLON

996

799.8

15:34:06

XLON

2,171

801.4

15:34:32

XLON

684

801.8

15:36:05

XLON

693

801.4

15:38:02

XLON

900

801

15:38:37

XLON

3,500

801

15:38:37

XLON

521

801.6

15:41:31

XLON

1,446

802.4

15:48:06

XLON

884

801.8

15:48:42

XLON

1,349

801.6

15:48:46

XLON

263

801.6

15:48:48

XLON

1,403

801.6

15:48:48

XLON

2,173

801.4

15:50:51

XLON

1,425

800.8

15:50:59

XLON

808

800.8

15:52:00

XLON

2,257

800.6

15:52:00

XLON

1,085

801.6

16:00:04

XLON

1,175

801.6

16:00:04

XLON

754

801.8

16:01:44

XLON

681

802

16:02:13

XLON

81

803.2

16:03:49

XLON

540

803.2

16:03:49

XLON

133

802.4

16:04:33

XLON

166

802.4

16:04:33

XLON

424

802.4

16:04:33

XLON

1,024

802.4

16:04:33

XLON

2,276

802

16:05:15

XLON

2,009

801.4

16:05:22

XLON

2,185

801.6

16:05:22

XLON

26

801.2

16:05:25

XLON

2,197

801.2

16:05:25

XLON

704

800.6

16:08:03

XLON

1,500

800.6

16:08:03

XLON

395

800.4

16:09:01

XLON

1,864

800.4

16:09:01

XLON

276

799.8

16:11:35

XLON

1,961

799.8

16:11:35

XLON

2,150

799.6

16:15:17

XLON

2,196

799

16:15:52

XLON

2,304

799

16:17:34

XLON

1,062

800.4

16:23:48

XLON

83

801.4

16:25:16

XLON

396

801.4

16:25:16

XLON

85

801.4

16:25:19

XLON

158

801.4

16:25:19

XLON

250

801.4

16:25:19

XLON

422

801.4

16:25:19

XLON

94

801.4

16:25:27

XLON

422

801.4

16:25:27

XLON

84

801.4

16:25:34

XLON

775

801.4

16:25:34

XLON

82

801.4

16:25:45

XLON

422

801.4

16:25:45

XLON

84

801.4

16:26:00

XLON

243

801.4

16:26:00

XLON

250

801.4

16:26:00

XLON

422

801.4

16:26:00

XLON

83

801.4

16:26:10

XLON

422

801.4

16:26:10

XLON

89

801.4

16:26:18

XLON

156

801.4

16:26:18

XLON

250

801.4

16:26:18

XLON

422

801.4

16:26:18

XLON

167

801.2

16:26:22

XLON

797

801.2

16:26:22

XLON

206

801.4

16:26:34

XLON

250

801.4

16:26:34

XLON

290

801.4

16:26:34

XLON

672

801.4

16:27:00

XLON

2,084

801.4

16:27:00

XLON

1,387

801.4

16:27:02

XLON

32

801.8

16:27:31

XLON

32

801.8

16:27:31

XLON

39

801.8

16:27:31

XLON

39

801.8

16:27:31

XLON

73

801.8

16:27:31

XLON

81

801.8

16:27:31

XLON

85

801.8

16:27:31

XLON

91

801.8

16:27:31

XLON

91

801.8

16:27:31

XLON

114

801.8

16:27:31

XLON

120

801.8

16:27:31

XLON

194

801.8

16:27:31

XLON

422

801.8

16:27:31

XLON

422

801.8

16:27:31

XLON

13

801.8

16:27:33

XLON

32

801.8

16:27:33

XLON

62

801.8

16:27:33

XLON

81

801.8

16:27:33

XLON

422

801.8

16:27:33

XLON

81

801.8

16:27:35

XLON

422

801.8

16:27:35

XLON

91

801.8

16:27:44

XLON

123

801.8

16:27:44

XLON

422

801.8

16:27:44

XLON

1,974

801.4

16:27:45

XLON

89

801.6

16:28:15

XLON

250

801.6

16:28:15

XLON

319

801.6

16:28:15

XLON

26

801

16:28:37

XLON

88

801

16:28:37

XLON

250

801

16:28:37

XLON

422

801

16:28:37

XLON

7,840

801.2

16:29:51

XLON

1

801.2

16:29:59

XLON

271

801.2

16:29:59

XLON

74

800.2

16:35:16

XLON

984

800.2

16:35:16

XLON

8,408

800.2

16:35:16

XLON

13,482

800.2

16:35:16

XLON

13,766

800.2

16:35:16

XLON

14,288

800.2

16:35:16

XLON

14,942

800.2

16:35:16

XLON

14,978

800.2

16:35:16

XLON

19,568

800.2

16:35:16

XLON

37,943

800.2

16:35:16

XLON

54,733

800.2

16:35:16

XLON

135,603

800.2

16:35:16

XLON