Form 8.3 INTERTEK GROUP PLC

FORM 8.3

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:

28 Apr 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:

1,533,017

1.00%

1,877,194

1.22%

(2)

Cash-settled derivatives:

1,216,656

0.79%

1,050,531

0.68%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

2,749,673

1.79%

2,927,725

1.90%

(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

72,871

46.0155 GBP

1p ordinary

Purchase

46,339

45.9500 GBP

1p ordinary

Purchase

34,622

46.4544 GBP

1p ordinary

Purchase

26,154

46.4304 GBP

1p ordinary

Purchase

18,501

46.4424 GBP

1p ordinary

Purchase

13,450

46.1664 GBP

1p ordinary

Purchase

12,716

46.3982 GBP

1p ordinary

Purchase

10,000

46.4266 GBP

1p ordinary

Purchase

9,292

46.5030 GBP

1p ordinary

Purchase

6,834

46.0583 GBP

1p ordinary

Purchase

6,632

46.3482 GBP

1p ordinary

Purchase

6,453

46.7124 GBP

1p ordinary

Purchase

5,351

45.9508 GBP

1p ordinary

Purchase

4,431

45.9657 GBP

1p ordinary

Purchase

3,423

46.5316 GBP

1p ordinary

Purchase

3,233

46.5721 GBP

1p ordinary

Purchase

2,916

46.4510 GBP

1p ordinary

Purchase

2,915

46.4094 GBP

1p ordinary

Purchase

2,783

46.0619 GBP

1p ordinary

Purchase

2,759

46.1651 GBP

1p ordinary

Purchase

2,616

46.4636 GBP

1p ordinary

Purchase

2,559

46.3669 GBP

1p ordinary

Purchase

2,394

46.3458 GBP

1p ordinary

Purchase

2,394

46.4346 GBP

1p ordinary

Purchase

2,367

46.4733 GBP

1p ordinary

Purchase

2,335

46.4706 GBP

1p ordinary

Purchase

2,052

46.1375 GBP

1p ordinary

Purchase

2,044

46.4786 GBP

1p ordinary

Purchase

2,019

46.5722 GBP

1p ordinary

Purchase

1,693

46.3701 GBP

1p ordinary

Purchase

1,471

46.4055 GBP

1p ordinary

Purchase

1,345

46.4775 GBP

1p ordinary

Purchase

1,238

46.4500 GBP

1p ordinary

Purchase

1,115

46.3972 GBP

ADR

Purchase

720

62.7569 USD

1p ordinary

Purchase

706

46.4174 GBP

1p ordinary

Purchase

700

46.9338 GBP

1p ordinary

Purchase

695

46.1588 GBP

1p ordinary

Purchase

506

46.5444 GBP

1p ordinary

Purchase

487

46.3695 GBP

1p ordinary

Purchase

461

46.1507 GBP

1p ordinary

Purchase

435

46.4750 GBP

1p ordinary

Purchase

366

46.5903 GBP

1p ordinary

Purchase

338

46.4391 GBP

1p ordinary

Purchase

309

46.4236 GBP

1p ordinary

Purchase

295

46.4323 GBP

1p ordinary

Purchase

276

46.3347 GBP

1p ordinary

Purchase

273

46.8762 GBP

1p ordinary

Purchase

212

46.5750 GBP

1p ordinary

Purchase

203

46.4942 GBP

1p ordinary

Purchase

196

46.2553 GBP

1p ordinary

Purchase

194

46.2800 GBP

1p ordinary

Purchase

192

46.4800 GBP

1p ordinary

Purchase

139

46.4300 GBP

ADR

Purchase

100

62.8300 USD

1p ordinary

Purchase

91

46.4000 GBP

1p ordinary

Purchase

89

46.4700 GBP

1p ordinary

Purchase

87

46.1200 GBP

1p ordinary

Purchase

71

46.3100 GBP

1p ordinary

Purchase

58

46.1782 GBP

1p ordinary

Purchase

43

47.0400 GBP

1p ordinary

Purchase

35

46.0700 GBP

1p ordinary

Purchase

32

46.4100 GBP

1p ordinary

Purchase

30

46.5000 GBP

1p ordinary

Purchase

29

46.7605 GBP

1p ordinary

Purchase

26

46.1546 GBP

1p ordinary

Purchase

18

46.4050 GBP

1p ordinary

Purchase

10

46.7490 GBP

1p ordinary

Purchase

4

46.9600 GBP

1p ordinary

Sale

66,496

45.9500 GBP

1p ordinary

Sale

29,087

46.4510 GBP

1p ordinary

Sale

25,015

46.2736 GBP

1p ordinary

Sale

24,631

45.9467 GBP

1p ordinary

Sale

23,814

46.6093 GBP

1p ordinary

Sale

12,445

46.5364 GBP

1p ordinary

Sale

8,662

46.4571 GBP

1p ordinary

Sale

7,672

45.9431 GBP

1p ordinary

Sale

7,425

46.5269 GBP

1p ordinary

Sale

5,309

46.6277 GBP

1p ordinary

Sale

5,303

45.9496 GBP

1p ordinary

Sale

4,844

46.5411 GBP

1p ordinary

Sale

4,429

46.4843 GBP

1p ordinary

Sale

3,500

46.5957 GBP

1p ordinary

Sale

3,000

46.1256 GBP

1p ordinary

Sale

3,000

46.0762 GBP

1p ordinary

Sale

5000

46.4693 GBP

1p ordinary

Sale

2500

46.1200 GBP

1p ordinary

Sale

2,297

45.9463 GBP

1p ordinary

Sale

2250

46.4707 GBP

1p ordinary

Sale

2250

46.5617 GBP

1p ordinary

Sale

2250

46.6912 GBP

1p ordinary

Sale

1687

47.2844 GBP

1p ordinary

Sale

1125

46.4800 GBP

1p ordinary

Sale

1125

46.8248 GBP

1p ordinary

Sale

563

47.3337 GBP

1p ordinary

Sale

562

46.7996 GBP

1p ordinary

Sale

1,664

46.5451 GBP

1p ordinary

Sale

1,638

46.7247 GBP

1p ordinary

Sale

1,420

46.3638 GBP

1p ordinary

Sale

1,389

46.5836 GBP

1p ordinary

Sale

886

45.9408 GBP

1p ordinary

Sale

820

46.0672 GBP

1p ordinary

Sale

712

46.5763 GBP

1p ordinary

Sale

668

46.3908 GBP

1p ordinary

Sale

645

46.5600 GBP

1p ordinary

Sale

631

46.4347 GBP

ADR

Sale

620

62.7451 USD

1p ordinary

Sale

578

46.3365 GBP

1p ordinary

Sale

406

46.5389 GBP

1p ordinary

Sale

306

46.4436 GBP

1p ordinary

Sale

269

46.2084 GBP

1p ordinary

Sale

265

46.1770 GBP

1p ordinary

Sale

257

46.6128 GBP

1p ordinary

Sale

253

45.9407 GBP

1p ordinary

Sale

226

45.9430 GBP

ADR

Sale

200

62.8300 USD

1p ordinary

Sale

199

45.9753 GBP

1p ordinary

Sale

192

47.0265 GBP

1p ordinary

Sale

175

46.2800 GBP

1p ordinary

Sale

151

46.5250 GBP

1p ordinary

Sale

125

46.4184 GBP

1p ordinary

Sale

116

46.2700 GBP

1p ordinary

Sale

107

46.1550 GBP

1p ordinary

Sale

89

46.4700 GBP

1p ordinary

Sale

88

46.2000 GBP

1p ordinary

Sale

58

46.8800 GBP

1p ordinary

Sale

37

46.4791 GBP

1p ordinary

Sale

32

46.4462 GBP

1p ordinary

Sale

32

46.4100 GBP

1p ordinary

Sale

30

46.4656 GBP

1p ordinary

Sale

30

46.5013 GBP

1p ordinary

Sale

30

46.5000 GBP

1p ordinary

Sale

22

46.3945 GBP

1p ordinary

Sale

18

46.4050 GBP

1p ordinary

Sale

5

46.4400 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

22

46.3944 GBP

1p ordinary

SWAP

Increasing Short

4,431

45.9657 GBP

1p ordinary

SWAP

Increasing Long

253

45.9407 GBP

1p ordinary

SWAP

Increasing Long

886

45.9408 GBP

1p ordinary

SWAP

Increasing Long

1,733

45.9408 USD

1p ordinary

SWAP

Increasing Long

226

45.9430 GBP

1p ordinary

SWAP

Increasing Long

7,672

45.9431 GBP

1p ordinary

SWAP

Increasing Long

2,297

45.9463 GBP

1p ordinary

SWAP

Increasing Long

24,631

45.9467 GBP

1p ordinary

SWAP

Increasing Long

5,303

45.9496 GBP

1p ordinary

SWAP

Increasing Long

57,683

45.9500 GBP

1p ordinary

SWAP

Increasing Long

820

46.0672 GBP

1p ordinary

SWAP

Increasing Long

481

46.0727 GBP

1p ordinary

SWAP

Increasing Long

155

46.1704 GBP

1p ordinary

SWAP

Increasing Long

110

46.1862 GBP

1p ordinary

SWAP

Increasing Long

468

46.2102 USD

1p ordinary

SWAP

Increasing Long

11,169

46.2370 GBP

1p ordinary

SWAP

Increasing Long

546

46.3295 GBP

1p ordinary

SWAP

Increasing Long

1,198

46.3944 GBP

1p ordinary

SWAP

Increasing Long

1,247

46.4293 GBP

1p ordinary

SWAP

Increasing Long

495

46.5358 GBP

1p ordinary

SWAP

Increasing Long

6,178

46.5466 GBP

1p ordinary

SWAP

Increasing Long

130

46.5653 GBP

1p ordinary

SWAP

Increasing Long

23,814

46.6093 GBP

1p ordinary

SWAP

Increasing Long

257

46.6128 GBP

1p ordinary

SWAP

Increasing Long

5,309

46.6277 GBP

1p ordinary

SWAP

Increasing Long

49

46.7600 GBP

1p ordinary

SWAP

Increasing Long

192

47.0265 GBP

1p ordinary

SWAP

Decreasing Long

90,971

45.9500 GBP

1p ordinary

SWAP

Decreasing Long

5,351

45.9508 GBP

1p ordinary

SWAP

Decreasing Long

232

45.9835 GBP

1p ordinary

SWAP

Decreasing Long

125

46.0284 GBP

1p ordinary

SWAP

Decreasing Long

2,052

46.1375 GBP

1p ordinary

SWAP

Decreasing Long

461

46.1507 GBP

1p ordinary

SWAP

Decreasing Long

26

46.1546 GBP

1p ordinary

SWAP

Decreasing Long

695

46.1588 GBP

1p ordinary

SWAP

Decreasing Long

13,450

46.1665 GBP

1p ordinary

SWAP

Decreasing Long

25

46.1778 GBP

1p ordinary

SWAP

Decreasing Long

33

46.1785 GBP

1p ordinary

SWAP

Decreasing Long

194

46.2800 GBP

1p ordinary

SWAP

Decreasing Long

6,632

46.3482 GBP

1p ordinary

SWAP

Decreasing Long

6,931

46.3840 GBP

1p ordinary

SWAP

Decreasing Long

2,900

46.3960 GBP

1p ordinary

SWAP

Decreasing Long

5,493

46.4112 GBP

1p ordinary

SWAP

Decreasing Long

10,000

46.4266 GBP

1p ordinary

SWAP

Decreasing Long

34,622

46.4544 GBP

1p ordinary

SWAP

Decreasing Long

557

46.4548 GBP

1p ordinary

SWAP

Decreasing Long

9,292

46.5030 GBP

1p ordinary

SWAP

Decreasing Long

3,423

46.5316 GBP

1p ordinary

SWAP

Decreasing Long

3,233

46.5721 GBP

1p ordinary

SWAP

Decreasing Long

366

46.5903 GBP

1p ordinary

SWAP

Decreasing Long

449

46.6171 GBP

1p ordinary

SWAP

Decreasing Long

112

46.6172 GBP

1p ordinary

SWAP

Decreasing Long

335

46.6918 GBP

1p ordinary

SWAP

Decreasing Long

592

46.6977 GBP

1p ordinary

SWAP

Decreasing Long

10

46.7487 GBP

1p ordinary

SWAP

Decreasing Long

29

46.7605 GBP

1p ordinary

SWAP

Increasing Short

631

46.5062 GBP

1p ordinary

CFD

Increasing Long

231

45.9467 GBP

1p ordinary

CFD

Increasing Long

61

46.4549 GBP

1p ordinary

CFD

Increasing Long

39

46.4566 GBP

1p ordinary

CFD

Decreasing Long

19,475

46.2302 GBP

1p ordinary

CFD

Decreasing Long

48

46.2933 GBP

1p ordinary

CFD

Decreasing Long

372

46.2934 GBP

1p ordinary

CFD

Decreasing Long

231

46.7632 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:

29 Apr 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213