Form 8.3 INTERTEK GROUP PLC Replacement

FORM 8.3

Amendment - this form replaces RNS number 8473D published at 15:15 on 11/05/2026, changes made to section 2A,3A and 3B

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR

MORE

Rule 8.3 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Full name of discloser:

Barclays PLC.

(b)

Owner or controller of interest and short

positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose

INTERTEK GROUP PLC

relevant securities this form relates:

(d)

If an exempt fund manager connected with an

offeror/offeree, state this and specify identity of

offeror/offeree:

(e)

Date position held/dealing undertaken:

08 May 2026

(f)

In addition to the company in 1(c) above, is the discloser making

NO

disclosures in respect of any other party to the offer?

2.

POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing(if any)

Class of relevant security:

1p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

1,709,174

1.11%

2,291,917

1.49%

(2)

Cash-settled derivatives:

1,694,895

1.10%

1,266,585

0.82%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

3,404,069

2.21%

3,558,502

2.31%

(b)

Rights to subscribe for new securities (including directors and other executive

options)

Class of relevant security in relation to

which subscription right exists

Details, including nature of the rights

concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

1p ordinary

Purchase

72,929

47.0807 GBP

1p ordinary

Purchase

60,116

48.6360 GBP

1p ordinary

Purchase

50,469

49.1000 GBP

1p ordinary

Purchase

43,203

47.9220 GBP

1p ordinary

Purchase

36,310

47.0164 GBP

1p ordinary

Purchase

34,000

48.9931 GBP

1p ordinary

Purchase

25,000

47.0235 GBP

1p ordinary

Purchase

22,849

49.2045 GBP

1p ordinary

Purchase

20,421

48.7861 GBP

1p ordinary

Purchase

19,999

49.2346 GBP

1p ordinary

Purchase

16,609

47.8979 GBP

1p ordinary

Purchase

15,000

48.0363 GBP

1p ordinary

Purchase

11,950

49.0338 GBP

1p ordinary

Purchase

11,638

48.9893 GBP

1p ordinary

Purchase

9,572

48.5185 GBP

1p ordinary

Purchase

8,795

48.6311 GBP

1p ordinary

Purchase

8,300

49.1423 GBP

1p ordinary

Purchase

7,963

48.9668 GBP

1p ordinary

Purchase

7,452

48.4018 GBP

1p ordinary

Purchase

7,205

49.2285 GBP

1p ordinary

Purchase

6,817

46.7307 GBP

1p ordinary

Purchase

6,800

49.1411 GBP

1p ordinary

Purchase

5,987

51.1130 GBP

1p ordinary

Purchase

5,834

46.5397 GBP

1p ordinary

Purchase

4,514

48.5497 GBP

1p ordinary

Purchase

4,109

49.1457 GBP

1p ordinary

Purchase

3,860

47.3997 GBP

1p ordinary

Purchase

3,773

48.1910 GBP

1p ordinary

Purchase

3,000

47.8883 GBP

1p ordinary

Purchase

2,250

51.4290 GBP

1p ordinary

Purchase

1,961

48.6684 GBP

1p ordinary

Purchase

1,748

49.2360 GBP

1p ordinary

Purchase

1,727

48.3573 GBP

1p ordinary

Purchase

1,697

48.6588 GBP

1p ordinary

Purchase

1,618

48.9680 GBP

1p ordinary

Purchase

1,542

48.6155 GBP

1p ordinary

Purchase

1,529

48.0465 GBP

1p ordinary

Purchase

1,500

46.6700 GBP

1p ordinary

Purchase

1,270

49.0755 GBP

1p ordinary

Purchase

1,111

48.9509 GBP

1p ordinary

Purchase

1,107

49.0636 GBP

1p ordinary

Purchase

1,083

49.0332 GBP

1p ordinary

Purchase

933

49.0746 GBP

ADR

Purchase

929

66.5631 USD

1p ordinary

Purchase

739

48.2599 GBP

1p ordinary

Purchase

723

47.1060 GBP

1p ordinary

Purchase

684

49.1011 GBP

1p ordinary

Purchase

614

48.6117 GBP

1p ordinary

Purchase

562

48.6592 GBP

1p ordinary

Purchase

544

49.2427 GBP

1p ordinary

Purchase

541

48.9800 GBP

ADR

Purchase

540

66.9500 USD

1p ordinary

Purchase

500

48.5000 GBP

1p ordinary

Purchase

486

46.9389 GBP

1p ordinary

Purchase

479

48.9400 GBP

1p ordinary

Purchase

424

49.0100 GBP

1p ordinary

Purchase

405

48.5293 GBP

1p ordinary

Purchase

402

49.2000 GBP

1p ordinary

Purchase

402

49.0847 GBP

1p ordinary

Purchase

401

48.6825 GBP

1p ordinary

Purchase

380

48.6059 GBP

1p ordinary

Purchase

350

49.1162 GBP

1p ordinary

Purchase

279

48.7904 GBP

1p ordinary

Purchase

231

48.6800 GBP

1p ordinary

Purchase

228

47.9494 GBP

1p ordinary

Purchase

227

48.9542 GBP

1p ordinary

Purchase

210

47.6151 GBP

1p ordinary

Purchase

208

49.2850 GBP

ADR

Purchase

200

66.7824 USD

1p ordinary

Purchase

200

48.7500 GBP

1p ordinary

Purchase

190

48.7491 GBP

1p ordinary

Purchase

177

49.2060 GBP

1p ordinary

Purchase

173

49.1802 GBP

1p ordinary

Purchase

162

49.0517 GBP

1p ordinary

Purchase

146

48.6982 GBP

1p ordinary

Purchase

118

47.4550 GBP

1p ordinary

Purchase

118

48.6100 GBP

1p ordinary

Purchase

117

46.6833 GBP

1p ordinary

Purchase

105

48.8556 GBP

1p ordinary

Purchase

100

48.7659 GBP

1p ordinary

Purchase

81

48.7900 GBP

1p ordinary

Purchase

78

48.8400 GBP

1p ordinary

Purchase

75

48.4400 GBP

1p ordinary

Purchase

72

48.7950 GBP

1p ordinary

Purchase

71

48.4381 GBP

1p ordinary

Purchase

63

48.6300 GBP

1p ordinary

Purchase

55

48.8100 GBP

1p ordinary

Purchase

29

49.1098 GBP

1p ordinary

Sale

76,960

48.5246 GBP

1p ordinary

Sale

69,095

47.0900 GBP

1p ordinary

Sale

50,000

48.6156 GBP

1p ordinary

Sale

46,000

49.0000 GBP

1p ordinary

Sale

39,213

49.1000 GBP

1p ordinary

Sale

37,366

48.0799 GBP

1p ordinary

Sale

31,572

48.0930 GBP

1p ordinary

Sale

30,987

48.9053 GBP

1p ordinary

Sale

30,000

49.1858 GBP

1p ordinary

Sale

18,610

49.0397 GBP

1p ordinary

Sale

16,998

49.0990 GBP

1p ordinary

Sale

16,866

48.1954 GBP

1p ordinary

Sale

13,215

49.0058 GBP

1p ordinary

Sale

11,079

48.1998 GBP

1p ordinary

Sale

10,950

48.6038 GBP

1p ordinary

Sale

10,950

48.5188 GBP

1p ordinary

Sale

10,540

48.0904 GBP

1p ordinary

Sale

10,000

48.9190 GBP

1p ordinary

Sale

9,562

49.0133 GBP

1p ordinary

Sale

9,286

48.9012 GBP

1p ordinary

Sale

9,000

47.8001 GBP

1p ordinary

Sale

6,745

47.9943 GBP

1p ordinary

Sale

5,557

49.1246 GBP

1p ordinary

Sale

5,203

48.1491 GBP

1p ordinary

Sale

5,000

49.2260 GBP

1p ordinary

Sale

4,500

49.2619 GBP

1p ordinary

Sale

4,000

48.1078 GBP

1p ordinary

Sale

3,598

48.7073 GBP

1p ordinary

Sale

3,581

48.7643 GBP

1p ordinary

Sale

3,205

48.7679 GBP

1p ordinary

Sale

3,153

47.9542 GBP

1p ordinary

Sale

3,011

49.2900 GBP

1p ordinary

Sale

2,832

48.9953 GBP

1p ordinary

Sale

2,728

48.4903 GBP

1p ordinary

Sale

2,614

47.6492 GBP

1p ordinary

Sale

2,563

47.6619 GBP

1p ordinary

Sale

2,487

46.6664 GBP

1p ordinary

Sale

2,119

48.3590 GBP

1p ordinary

Sale

1,837

49.0109 GBP

1p ordinary

Sale

1,819

49.2088 GBP

1p ordinary

Sale

1,677

49.0950 GBP

1p ordinary

Sale

1,500

48.0500 GBP

1p ordinary

Sale

1,393

48.9600 GBP

1p ordinary

Sale

1,250

48.5868 GBP

1p ordinary

Sale

1,013

48.8629 GBP

1p ordinary

Sale

996

48.6165 GBP

1p ordinary

Sale

989

49.1098 GBP

1p ordinary

Sale

954

48.6351 GBP

ADR

Sale

929

66.5630 USD

1p ordinary

Sale

779

48.9030 GBP

1p ordinary

Sale

754

47.4099 GBP

1p ordinary

Sale

734

47.9324 GBP

1p ordinary

Sale

699

47.5668 GBP

1p ordinary

Sale

607

48.9129 GBP

1p ordinary

Sale

581

49.2809 GBP

1p ordinary

Sale

563

49.2808 GBP

1p ordinary

Sale

573

48.8982 GBP

ADR

Sale

540

66.9500 USD

1p ordinary

Sale

510

47.3350 GBP

1p ordinary

Sale

486

46.9436 GBP

1p ordinary

Sale

479

48.9400 GBP

1p ordinary

Sale

472

49.1397 GBP

1p ordinary

Sale

456

48.5850 GBP

1p ordinary

Sale

431

47.0500 GBP

1p ordinary

Sale

425

46.7650 GBP

1p ordinary

Sale

391

48.9390 GBP

1p ordinary

Sale

373

47.0609 GBP

1p ordinary

Sale

371

48.8100 GBP

1p ordinary

Sale

370

49.0981 GBP

1p ordinary

Sale

306

48.8164 GBP

1p ordinary

Sale

305

49.1050 GBP

1p ordinary

Sale

292

49.1486 GBP

1p ordinary

Sale

262

49.1220 GBP

1p ordinary

Sale

214

48.9500 GBP

1p ordinary

Sale

205

49.1600 GBP

1p ordinary

Sale

203

47.9400 GBP

1p ordinary

Sale

202

48.8756 GBP

1p ordinary

Sale

201

49.2000 GBP

ADR

Sale

200

66.7824 USD

1p ordinary

Sale

179

47.7693 GBP

1p ordinary

Sale

162

49.0901 GBP

1p ordinary

Sale

150

49.2675 GBP

1p ordinary

Sale

130

46.9450 GBP

1p ordinary

Sale

126

49.0064 GBP

1p ordinary

Sale

122

47.7443 GBP

1p ordinary

Sale

111

49.2450 GBP

1p ordinary

Sale

110

48.6800 GBP

1p ordinary

Sale

102

49.1809 GBP

1p ordinary

Sale

101

49.4150 GBP

1p ordinary

Sale

80

49.1585 GBP

1p ordinary

Sale

70

48.9611 GBP

1p ordinary

Sale

63

48.6300 GBP

1p ordinary

Sale

63

48.8777 GBP

1p ordinary

Sale

62

47.9104 GBP

1p ordinary

Sale

26

46.6800 GBP

1p ordinary

Sale

4

49.3900 GBP

1p ordinary

Sale

2

48.7700 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

1p ordinary

SWAP

Decreasing Short

21,900

48.5613 GBP

1p ordinary

SWAP

Increasing Short

25,000

47.0235 GBP

1p ordinary

SWAP

Increasing Long

2,487

46.6664 GBP

1p ordinary

SWAP

Increasing Long

2,316

46.6700 GBP

1p ordinary

SWAP

Increasing Long

130

46.9450 GBP

1p ordinary

SWAP

Increasing Long

5,540

47.4773 GBP

1p ordinary

SWAP

Increasing Long

10,848

47.7345 GBP

1p ordinary

SWAP

Increasing Long

750

47.7644 GBP

1p ordinary

SWAP

Increasing Long

179

47.7693 GBP

1p ordinary

SWAP

Increasing Long

1,500

48.0500 GBP

1p ordinary

SWAP

Increasing Long

31,572

48.0930 GBP

1p ordinary

SWAP

Increasing Long

76,960

48.5246 GBP

1p ordinary

SWAP

Increasing Long

456

48.5850 GBP

1p ordinary

SWAP

Increasing Long

1,250

48.5868 GBP

1p ordinary

SWAP

Increasing Long

50,000

48.6156 GBP

1p ordinary

SWAP

Increasing Long

110

48.6800 GBP

1p ordinary

SWAP

Increasing Long

3,581

48.7643 GBP

1p ordinary

SWAP

Increasing Long

2

48.7650 GBP

1p ordinary

SWAP

Increasing Long

5,000

48.7699 GBP

1p ordinary

SWAP

Increasing Long

3,607

48.7900 GBP

1p ordinary

SWAP

Increasing Long

306

48.8164 GBP

1p ordinary

SWAP

Increasing Long

3,568

48.8173 GBP

1p ordinary

SWAP

Increasing Long

202

48.8756 GBP

1p ordinary

SWAP

Increasing Long

573

48.8982 GBP

1p ordinary

SWAP

Increasing Long

9,286

48.9012 GBP

1p ordinary

SWAP

Increasing Long

779

48.9030 GBP

1p ordinary

SWAP

Increasing Long

10,000

48.9190 GBP

1p ordinary

SWAP

Increasing Long

1,074

48.9600 GBP

1p ordinary

SWAP

Increasing Long

70

48.9611 GBP

1p ordinary

SWAP

Increasing Long

46,000

49.0000 GBP

1p ordinary

SWAP

Increasing Long

126

49.0064 GBP

1p ordinary

SWAP

Increasing Long

3,757

49.0095 GBP

1p ordinary

SWAP

Increasing Long

9,562

49.0133 GBP

1p ordinary

SWAP

Increasing Long

15,000

49.0189 GBP

1p ordinary

SWAP

Increasing Long

6,018

49.0263 GBP

1p ordinary

SWAP

Increasing Long

8,990

49.0464 GBP

1p ordinary

SWAP

Increasing Long

193

49.0517 GBP

1p ordinary

SWAP

Increasing Long

162

49.0901 GBP

1p ordinary

SWAP

Increasing Long

1,543

49.0950 GBP

1p ordinary

SWAP

Increasing Long

7,100

49.0966 GBP

1p ordinary

SWAP

Increasing Long

16,998

49.0990 GBP

1p ordinary

SWAP

Increasing Long

2,191

49.1000 GBP

1p ordinary

SWAP

Increasing Long

262

49.1220 GBP

1p ordinary

SWAP

Increasing Long

3,610

49.1258 GBP

1p ordinary

SWAP

Increasing Long

472

49.1397 GBP

1p ordinary

SWAP

Increasing Long

80

49.1585 GBP

1p ordinary

SWAP

Increasing Long

30,000

49.1858 GBP

1p ordinary

SWAP

Increasing Long

1,819

49.2088 GBP

1p ordinary

SWAP

Increasing Long

4,500

49.2619 GBP

1p ordinary

SWAP

Increasing Long

581

49.2809 GBP

1p ordinary

SWAP

Increasing Long

6,331

50.4600 GBP

1p ordinary

SWAP

Increasing Long

2,164

50.9335 GBP

1p ordinary

SWAP

Increasing Long

2,200

51.7554 GBP

1p ordinary

SWAP

Decreasing Long

5,834

46.5397 GBP

1p ordinary

SWAP

Decreasing Long

1,500

46.6700 GBP

1p ordinary

SWAP

Decreasing Long

10,000

46.6735 GBP

1p ordinary

SWAP

Decreasing Long

21,881

46.7273 GBP

1p ordinary

SWAP

Decreasing Long

3,777

47.3544 GBP

1p ordinary

SWAP

Decreasing Long

11,609

47.5668 GBP

1p ordinary

SWAP

Decreasing Long

7,452

48.4018 GBP

1p ordinary

SWAP

Decreasing Long

1,224

48.4086 GBP

1p ordinary

SWAP

Decreasing Long

71

48.4381 GBP

1p ordinary

SWAP

Decreasing Long

47

48.4400 GBP

1p ordinary

SWAP

Decreasing Long

5,240

48.6449 GBP

1p ordinary

SWAP

Decreasing Long

5,000

48.6666 GBP

1p ordinary

SWAP

Decreasing Long

12,688

48.6878 GBP

1p ordinary

SWAP

Decreasing Long

3,607

48.7900 GBP

1p ordinary

SWAP

Decreasing Long

486

48.7942 GBP

1p ordinary

SWAP

Decreasing Long

3,012

48.8158 GBP

1p ordinary

SWAP

Decreasing Long

1,736

48.8651 GBP

1p ordinary

SWAP

Decreasing Long

902

48.9568 GBP

1p ordinary

SWAP

Decreasing Long

7,963

48.9668 GBP

1p ordinary

SWAP

Decreasing Long

34,000

48.9931 GBP

1p ordinary

SWAP

Decreasing Long

6,744

49.0079 GBP

1p ordinary

SWAP

Decreasing Long

424

49.0100 GBP

1p ordinary

SWAP

Decreasing Long

5,730

49.0262 GBP

1p ordinary

SWAP

Decreasing Long

11,950

49.0338 GBP

1p ordinary

SWAP

Decreasing Long

45,202

49.1000 GBP

1p ordinary

SWAP

Decreasing Long

684

49.1010 GBP

1p ordinary

SWAP

Decreasing Long

29

49.1096 GBP

1p ordinary

SWAP

Decreasing Long

350

49.1161 GBP

1p ordinary

SWAP

Decreasing Long

6,800

49.1411 GBP

1p ordinary

SWAP

Decreasing Long

4,109

49.1456 GBP

1p ordinary

SWAP

Decreasing Long

173

49.1801 GBP

1p ordinary

SWAP

Decreasing Long

28,233

49.2184 GBP

1p ordinary

SWAP

Decreasing Long

4,429

49.2188 GBP

1p ordinary

SWAP

Decreasing Long

220

49.2241 GBP

1p ordinary

SWAP

Decreasing Long

56

49.2344 GBP

1p ordinary

SWAP

Decreasing Long

1,748

49.2360 GBP

1p ordinary

SWAP

Decreasing Long

83

49.4603 GBP

1p ordinary

SWAP

Decreasing Long

6,331

50.4600 GBP

1p ordinary

SWAP

Decreasing Long

5,987

51.1133 GBP

1p ordinary

SWAP

Decreasing Long

2,250

51.4293 GBP

1p ordinary

SWAP

Decreasing Long

60,116

48.6361 GBP

1p ordinary

SWAP

Decreasing Long

14,615

49.2189 GBP

1p ordinary

SWAP

Decreasing Long

562

52.0304 GBP

1p ordinary

SWAP

Decreasing Short

56

49.3295 GBP

1p ordinary

SWAP

Decreasing Short

37,366

48.0799 GBP

1p ordinary

SWAP

Increasing Short

1,463

48.6471 GBP

1p ordinary

CFD

Increasing Long

398

49.0963 GBP

1p ordinary

CFD

Increasing Long

142

49.0965 GBP

1p ordinary

CFD

Increasing Long

675

49.2868 GBP

1p ordinary

CFD

Increasing Long

110

49.2887 GBP

1p ordinary

CFD

Decreasing Long

1,510

47.3139 GBP

1p ordinary

CFD

Decreasing Long

3,482

49.1034 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class

Product

Writing,

Number

Exercise

Type

Expiry

Option

of

description

purchasing,

of

price

date

money

relevant

selling,

securities

per unit

paid/

security

varying etc

to which

received

option

per unit

relates

(ii)

Exercise

Class of relevant

Product description

Exercising/ exercised against

Number of

Exercise price per

security

securities

unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant

Nature of Dealings

Details

Price per unit (if

security

applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding,

formal or informal, relating to relevant securities which may be an inducement to deal

or refrain from dealing entered into by the exempt principal trader making the disclosure and any party

to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between

the person making the disclosure and any other person relating to:

(i) the voting rights of any relevant securities under any option; or

(ii) the voting rights of future acquisition or disposal of any relevant securities to which

any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

14 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213