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:

21 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:

2,057,780

1.34%

1,989,883

1.29%

(2)

Cash-settled derivatives:

1,305,638

0.85%

1,550,734

1.01%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

3,363,418

2.19%

3,540,617

2.30%

(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

54,392

48.9200 GBP

1p ordinary

Purchase

37,760

48.9223 GBP

1p ordinary

Purchase

13,029

48.9586 GBP

1p ordinary

Purchase

4,034

49.0852 GBP

1p ordinary

Purchase

2,998

49.0720 GBP

1p ordinary

Purchase

2,671

48.9286 GBP

1p ordinary

Purchase

2,603

48.9165 GBP

1p ordinary

Purchase

2,496

49.1314 GBP

1p ordinary

Purchase

2,244

49.3148 GBP

1p ordinary

Purchase

1,796

49.1086 GBP

1p ordinary

Purchase

1,793

49.1997 GBP

1p ordinary

Purchase

1,765

49.3159 GBP

1p ordinary

Purchase

1,759

49.1259 GBP

1p ordinary

Purchase

1,595

49.4096 GBP

1p ordinary

Purchase

1,479

49.2498 GBP

1p ordinary

Purchase

1,203

48.9203 GBP

1p ordinary

Purchase

1,187

49.5151 GBP

1p ordinary

Purchase

1,137

49.4726 GBP

1p ordinary

Purchase

1,020

49.3314 GBP

1p ordinary

Purchase

1,010

49.1967 GBP

1p ordinary

Purchase

951

49.2000 GBP

1p ordinary

Purchase

780

49.3212 GBP

1p ordinary

Purchase

728

49.3879 GBP

1p ordinary

Purchase

650

49.4348 GBP

1p ordinary

Purchase

617

49.3206 GBP

1p ordinary

Purchase

443

49.2740 GBP

1p ordinary

Purchase

395

49.1219 GBP

1p ordinary

Purchase

379

49.4791 GBP

1p ordinary

Purchase

337

49.5221 GBP

1p ordinary

Purchase

249

49.0433 GBP

1p ordinary

Purchase

244

49.0763 GBP

1p ordinary

Purchase

231

49.3993 GBP

1p ordinary

Purchase

221

49.4738 GBP

1p ordinary

Purchase

217

49.2098 GBP

1p ordinary

Purchase

209

49.3264 GBP

1p ordinary

Purchase

207

49.5082 GBP

1p ordinary

Purchase

206

49.5261 GBP

1p ordinary

Purchase

195

49.5800 GBP

1p ordinary

Purchase

180

49.0448 GBP

1p ordinary

Purchase

172

48.9353 GBP

1p ordinary

Purchase

167

49.1700 GBP

1p ordinary

Purchase

157

49.2900 GBP

1p ordinary

Purchase

152

49.5056 GBP

1p ordinary

Purchase

144

49.4319 GBP

1p ordinary

Purchase

143

49.6821 GBP

1p ordinary

Purchase

135

49.4443 GBP

1p ordinary

Purchase

133

49.1133 GBP

1p ordinary

Purchase

127

49.4000 GBP

1p ordinary

Purchase

120

49.0333 GBP

1p ordinary

Purchase

116

49.5187 GBP

1p ordinary

Purchase

112

49.3712 GBP

ADR

Purchase

99

66.1900 USD

1p ordinary

Purchase

96

49.2912 GBP

1p ordinary

Purchase

93

49.4988 GBP

1p ordinary

Purchase

89

49.6000 GBP

1p ordinary

Purchase

87

49.3429 GBP

1p ordinary

Purchase

67

49.3500 GBP

1p ordinary

Purchase

66

49.5350 GBP

1p ordinary

Purchase

65

49.1650 GBP

1p ordinary

Purchase

63

49.2950 GBP

1p ordinary

Purchase

62

49.1900 GBP

1p ordinary

Purchase

61

49.3400 GBP

1p ordinary

Purchase

61

49.4700 GBP

1p ordinary

Purchase

55

49.0200 GBP

1p ordinary

Purchase

51

49.3141 GBP

1p ordinary

Purchase

25

49.2988 GBP

1p ordinary

Purchase

21

49.3909 GBP

1p ordinary

Purchase

20

48.9750 GBP

1p ordinary

Purchase

6

49.5400 GBP

ADR

Purchase

5

66.6800 USD

1p ordinary

Purchase

5

49.3700 GBP

1p ordinary

Purchase

4

49.3300 GBP

1p ordinary

Purchase

1

48.9600 GBP

1p ordinary

Purchase

1

48.9550 GBP

1p ordinary

Sale

100,842

48.9544 GBP

1p ordinary

Sale

60,285

48.9200 GBP

1p ordinary

Sale

19,698

49.5599 GBP

1p ordinary

Sale

17,292

48.9144 GBP

1p ordinary

Sale

15,029

49.3510 GBP

1p ordinary

Sale

10,219

49.3546 GBP

1p ordinary

Sale

9,178

49.5918 GBP

1p ordinary

Sale

8,272

49.2273 GBP

1p ordinary

Sale

7,589

49.3138 GBP

1p ordinary

Sale

6,815

49.2724 GBP

1p ordinary

Sale

4,753

48.9212 GBP

1p ordinary

Sale

2,888

48.9126 GBP

1p ordinary

Sale

2,345

48.9602 GBP

1p ordinary

Sale

2,275

49.2628 GBP

1p ordinary

Sale

1,922

48.9265 GBP

1p ordinary

Sale

1,802

49.3166 GBP

1p ordinary

Sale

1,780

49.2010 GBP

1p ordinary

Sale

1,728

49.3117 GBP

1p ordinary

Sale

1,720

49.3524 GBP

1p ordinary

Sale

1,318

49.3503 GBP

1p ordinary

Sale

1,073

49.4289 GBP

1p ordinary

Sale

1,022

49.0564 GBP

1p ordinary

Sale

1,009

49.1956 GBP

1p ordinary

Sale

883

49.1868 GBP

1p ordinary

Sale

859

49.2396 GBP

1p ordinary

Sale

854

49.3535 GBP

1p ordinary

Sale

828

49.3045 GBP

1p ordinary

Sale

782

48.9257 GBP

1p ordinary

Sale

662

48.9190 GBP

1p ordinary

Sale

640

49.5500 GBP

1p ordinary

Sale

625

48.9170 GBP

1p ordinary

Sale

542

49.3947 GBP

1p ordinary

Sale

534

49.3212 GBP

1p ordinary

Sale

527

49.3163 GBP

1p ordinary

Sale

493

49.2339 GBP

1p ordinary

Sale

475

49.5296 GBP

1p ordinary

Sale

455

49.3044 GBP

1p ordinary

Sale

374

48.8284 GBP

1p ordinary

Sale

342

49.2100 GBP

1p ordinary

Sale

334

49.2945 GBP

1p ordinary

Sale

304

49.2344 GBP

1p ordinary

Sale

291

49.3462 GBP

1p ordinary

Sale

281

49.4205 GBP

1p ordinary

Sale

203

49.2692 GBP

1p ordinary

Sale

192

48.9297 GBP

1p ordinary

Sale

167

49.1700 GBP

1p ordinary

Sale

166

49.4256 GBP

1p ordinary

Sale

157

49.2900 GBP

1p ordinary

Sale

154

49.3910 GBP

1p ordinary

Sale

144

49.4334 GBP

1p ordinary

Sale

142

49.4711 GBP

1p ordinary

Sale

140

49.1327 GBP

1p ordinary

Sale

123

49.1440 GBP

1p ordinary

Sale

120

49.4733 GBP

1p ordinary

Sale

114

49.4464 GBP

1p ordinary

Sale

112

49.4522 GBP

1p ordinary

Sale

106

49.5265 GBP

ADR

Sale

99

66.1900 USD

1p ordinary

Sale

81

49.1800 GBP

1p ordinary

Sale

65

49.1650 GBP

1p ordinary

Sale

65

49.6900 GBP

1p ordinary

Sale

65

49.2550 GBP

1p ordinary

Sale

65

49.6800 GBP

1p ordinary

Sale

63

49.1500 GBP

1p ordinary

Sale

51

48.9145 GBP

1p ordinary

Sale

31

49.3548 GBP

1p ordinary

Sale

19

49.3800 GBP

1p ordinary

Sale

9

49.3700 GBP

1p ordinary

Sale

9

49.3455 GBP

1p ordinary

Sale

6

49.2675 GBP

ADR

Sale

5

66.6800 USD

1p ordinary

Sale

5

49.6150 GBP

1p ordinary

Sale

1

48.9550 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

Increasing Short

3,080

48.9257 GBP

1p ordinary

SWAP

Increasing Short

249

49.0432 GBP

1p ordinary

SWAP

Increasing Short

180

49.0448 GBP

1p ordinary

SWAP

Increasing Short

184

49.0548 GBP

1p ordinary

SWAP

Increasing Short

1,650

49.1540 GBP

1p ordinary

SWAP

Increasing Short

112

49.3711 GBP

1p ordinary

SWAP

Increasing Long

2,888

48.9126 GBP

1p ordinary

SWAP

Increasing Long

17,292

48.9144 GBP

1p ordinary

SWAP

Increasing Long

51

48.9145 GBP

1p ordinary

SWAP

Increasing Long

11,028

48.9165 GBP

1p ordinary

SWAP

Increasing Long

625

48.9170 GBP

1p ordinary

SWAP

Increasing Long

662

48.9190 GBP

1p ordinary

SWAP

Increasing Long

113,709

48.9200 GBP

1p ordinary

SWAP

Increasing Long

1,922

48.9265 GBP

1p ordinary

SWAP

Increasing Long

1,022

49.0564 GBP

1p ordinary

SWAP

Increasing Long

883

49.1868 GBP

1p ordinary

SWAP

Increasing Long

1,780

49.2010 GBP

1p ordinary

SWAP

Increasing Long

715

49.2204 GBP

1p ordinary

SWAP

Increasing Long

8,272

49.2273 GBP

1p ordinary

SWAP

Increasing Long

304

49.2344 GBP

1p ordinary

SWAP

Increasing Long

859

49.2396 GBP

1p ordinary

SWAP

Increasing Long

3,862

49.2408 GBP

1p ordinary

SWAP

Increasing Long

2,275

49.2628 GBP

1p ordinary

SWAP

Increasing Long

6,478

49.2856 GBP

1p ordinary

SWAP

Increasing Long

334

49.2945 GBP

1p ordinary

SWAP

Increasing Long

3,639

49.3027 GBP

1p ordinary

SWAP

Increasing Long

7,589

49.3138 GBP

1p ordinary

SWAP

Increasing Long

9

49.3455 GBP

1p ordinary

SWAP

Increasing Long

291

49.3462 GBP

1p ordinary

SWAP

Increasing Long

15,029

49.3510 GBP

1p ordinary

SWAP

Increasing Long

10,219

49.3546 GBP

1p ordinary

SWAP

Increasing Long

31

49.3548 GBP

1p ordinary

SWAP

Increasing Long

447

49.4224 GBP

1p ordinary

SWAP

Increasing Long

114

49.4463 GBP

1p ordinary

SWAP

Increasing Long

112

49.4522 GBP

1p ordinary

SWAP

Increasing Long

9,178

49.5918 GBP

1p ordinary

SWAP

Decreasing Long

198

48.6900 GBP

1p ordinary

SWAP

Decreasing Long

14,987

48.9200 GBP

1p ordinary

SWAP

Decreasing Long

1,203

48.9203 GBP

1p ordinary

SWAP

Decreasing Long

4,693

48.9215 GBP

1p ordinary

SWAP

Decreasing Long

30,949

48.9221 GBP

1p ordinary

SWAP

Decreasing Long

2,122

48.9224 GBP

1p ordinary

SWAP

Decreasing Long

366

48.9371 GBP

1p ordinary

SWAP

Decreasing Long

90

48.9450 GBP

1p ordinary

SWAP

Decreasing Long

5,992

48.9522 GBP

1p ordinary

SWAP

Decreasing Long

1

48.9600 GBP

1p ordinary

SWAP

Decreasing Long

31

49.0152 GBP

1p ordinary

SWAP

Decreasing Long

2,998

49.0720 GBP

1p ordinary

SWAP

Decreasing Long

3,307

49.0793 GBP

1p ordinary

SWAP

Decreasing Long

1,796

49.1086 GBP

1p ordinary

SWAP

Decreasing Long

727

49.1118 GBP

1p ordinary

SWAP

Decreasing Long

395

49.1219 GBP

1p ordinary

SWAP

Decreasing Long

5

49.1320 GBP

1p ordinary

SWAP

Decreasing Long

61

49.1324 GBP

1p ordinary

SWAP

Decreasing Long

1,010

49.1967 GBP

1p ordinary

SWAP

Decreasing Long

1,125

49.2098 GBP

1p ordinary

SWAP

Decreasing Long

75

49.2947 GBP

1p ordinary

SWAP

Decreasing Long

220

49.2963 GBP

1p ordinary

SWAP

Decreasing Long

232

49.2995 GBP

1p ordinary

SWAP

Decreasing Long

617

49.3206 GBP

1p ordinary

SWAP

Decreasing Long

209

49.3264 GBP

1p ordinary

SWAP

Decreasing Long

984

49.3336 GBP

1p ordinary

SWAP

Decreasing Long

728

49.3879 GBP

1p ordinary

SWAP

Decreasing Long

21

49.3907 GBP

1p ordinary

SWAP

Decreasing Long

127

49.4000 GBP

1p ordinary

SWAP

Decreasing Long

1,078

49.4193 GBP

1p ordinary

SWAP

Decreasing Long

563

49.4278 GBP

1p ordinary

SWAP

Decreasing Long

1,137

49.4726 GBP

1p ordinary

SWAP

Decreasing Long

562

49.4748 GBP

1p ordinary

SWAP

Decreasing Long

337

49.5221 GBP

1p ordinary

SWAP

Decreasing Long

1,156

49.5284 GBP

1p ordinary

SWAP

Decreasing Long

143

49.6821 GBP

1p ordinary

SWAP

Decreasing Short

52

49.6756 GBP

1p ordinary

SWAP

Increasing Short

78

48.9200 GBP

1p ordinary

CFD

Increasing Long

307

48.9165 GBP

1p ordinary

CFD

Increasing Long

321

49.0291 GBP

1p ordinary

CFD

Increasing Long

3,007

49.4821 GBP

1p ordinary

CFD

Increasing Long

130

49.6464 GBP

1p ordinary

CFD

Decreasing Long

307

48.6934 GBP

1p ordinary

CFD

Decreasing Long

5,592

49.1396 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:

22 Apr 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213