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:

01 Jun 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:

2,915,255

1.89%

2,317,851

1.51%

(2)

Cash-settled derivatives:

1,862,352

1.21%

2,480,932

1.61%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,777,607

3.10%

4,798,783

3.12%

(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

71,823

53.5500 GBP

1p ordinary

Purchase

35,279

53.6070 GBP

1p ordinary

Purchase

28,268

53.5054 GBP

1p ordinary

Purchase

25,000

53.5711 GBP

1p ordinary

Purchase

17,176

53.5397 GBP

1p ordinary

Purchase

11,389

53.5233 GBP

1p ordinary

Purchase

8,308

53.5185 GBP

1p ordinary

Purchase

6,860

53.4951 GBP

1p ordinary

Purchase

6,186

53.3000 GBP

1p ordinary

Purchase

6,068

53.5510 GBP

1p ordinary

Purchase

5,454

53.6143 GBP

1p ordinary

Purchase

4,516

53.5343 GBP

1p ordinary

Purchase

3,641

53.6352 GBP

1p ordinary

Purchase

2,210

53.7020 GBP

1p ordinary

Purchase

2,040

53.3793 GBP

1p ordinary

Purchase

1,975

53.4330 GBP

1p ordinary

Purchase

1,699

53.5406 GBP

1p ordinary

Purchase

1,480

53.3768 GBP

1p ordinary

Purchase

1,413

53.6774 GBP

1p ordinary

Purchase

1,222

53.3812 GBP

1p ordinary

Purchase

1,147

53.3829 GBP

1p ordinary

Purchase

1,085

53.3710 GBP

1p ordinary

Purchase

982

53.4089 GBP

1p ordinary

Purchase

943

53.6452 GBP

1p ordinary

Purchase

880

53.4000 GBP

1p ordinary

Purchase

565

53.4240 GBP

1p ordinary

Purchase

495

53.3250 GBP

1p ordinary

Purchase

480

53.4436 GBP

1p ordinary

Purchase

463

53.3704 GBP

1p ordinary

Purchase

446

53.6142 GBP

1p ordinary

Purchase

444

53.6765 GBP

1p ordinary

Purchase

411

53.4053 GBP

1p ordinary

Purchase

399

53.3637 GBP

1p ordinary

Purchase

382

53.6341 GBP

1p ordinary

Purchase

339

53.4471 GBP

1p ordinary

Purchase

276

53.5228 GBP

1p ordinary

Purchase

275

53.6329 GBP

1p ordinary

Purchase

205

53.4473 GBP

ADR

Purchase

200

71.7800 USD

1p ordinary

Purchase

172

53.4500 GBP

1p ordinary

Purchase

167

53.4359 GBP

1p ordinary

Purchase

131

53.6500 GBP

1p ordinary

Purchase

125

53.3736 GBP

1p ordinary

Purchase

117

53.3750 GBP

1p ordinary

Purchase

69

53.6478 GBP

1p ordinary

Purchase

60

53.3429 GBP

1p ordinary

Purchase

18

53.4055 GBP

1p ordinary

Purchase

5

53.5540 GBP

1p ordinary

Purchase

2

53.7000 GBP

1p ordinary

Sale

73,271

53.5500 GBP

1p ordinary

Sale

62,656

53.6500 GBP

1p ordinary

Sale

14,381

53.5655 GBP

1p ordinary

Sale

10,400

53.4488 GBP

1p ordinary

Sale

9,855

53.4349 GBP

1p ordinary

Sale

7,352

53.3042 GBP

1p ordinary

Sale

7,350

53.3162 GBP

1p ordinary

Sale

5,640

53.7870 GBP

1p ordinary

Sale

5,580

53.3243 GBP

1p ordinary

Sale

5,074

53.5191 GBP

1p ordinary

Sale

2,120

53.3057 GBP

1p ordinary

Sale

1,794

53.5392 GBP

1p ordinary

Sale

1,649

53.3527 GBP

1p ordinary

Sale

1,562

53.5555 GBP

1p ordinary

Sale

1,522

53.3496 GBP

1p ordinary

Sale

1,416

53.3000 GBP

1p ordinary

Sale

1,184

53.4858 GBP

1p ordinary

Sale

1,045

53.3111 GBP

1p ordinary

Sale

1,023

53.7351 GBP

1p ordinary

Sale

876

53.7000 GBP

1p ordinary

Sale

658

53.3341 GBP

1p ordinary

Sale

576

53.7625 GBP

1p ordinary

Sale

576

53.8250 GBP

1p ordinary

Sale

548

53.4853 GBP

1p ordinary

Sale

480

53.4452 GBP

1p ordinary

Sale

377

53.5000 GBP

1p ordinary

Sale

308

53.7042 GBP

1p ordinary

Sale

288

53.8000 GBP

1p ordinary

Sale

274

53.5755 GBP

1p ordinary

Sale

268

53.3250 GBP

1p ordinary

Sale

238

53.3876 GBP

1p ordinary

Sale

232

53.5795 GBP

1p ordinary

Sale

226

53.3750 GBP

1p ordinary

Sale

204

53.5419 GBP

ADR

Sale

200

71.7800 USD

1p ordinary

Sale

131

53.5089 GBP

1p ordinary

Sale

110

53.4000 GBP

1p ordinary

Sale

104

53.3500 GBP

1p ordinary

Sale

71

53.6197 GBP

1p ordinary

Sale

67

53.4250 GBP

1p ordinary

Sale

50

53.4992 GBP

1p ordinary

Sale

2

53.6000 GBP

1p ordinary

Sale

1

53.4500 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 Long

10,400

53.4488 GBP

1p ordinary

SWAP

Decreasing Short

4

53.5755 GBP

1p ordinary

SWAP

Increasing Long

1,522

53.3495 GBP

1p ordinary

SWAP

Decreasing Short

94

53.6994 GBP

1p ordinary

SWAP

Decreasing Long

1,370

53.5789 GBP

1p ordinary

SWAP

Decreasing Short

50

53.4991 GBP

1p ordinary

SWAP

Decreasing Long

26,151

53.5500 GBP

1p ordinary

SWAP

Decreasing Short

8

53.7750 GBP

1p ordinary

SWAP

Increasing Short

2

53.6500 GBP

1p ordinary

SWAP

Decreasing Short

662

53.6250 GBP

1p ordinary

SWAP

Decreasing Long

331

53.6250 GBP

1p ordinary

SWAP

Increasing Short

182

53.6250 GBP

1p ordinary

SWAP

Increasing Long

62,656

53.6500 GBP

1p ordinary

SWAP

Opening Long

611

53.5422 GBP

1p ordinary

SWAP

Opening Short

2,583

53.4438 GBP

1p ordinary

SWAP

Increasing Short

788

53.3003 GBP

1p ordinary

SWAP

Decreasing Long

142

53.6183 GBP

1p ordinary

CFD

Decreasing Long

259

53.6664 GBP

1p ordinary

CFD

Decreasing Short

478

53.4500 GBP

1p ordinary

SWAP

Decreasing Short

26

53.7457 GBP

1p ordinary

SWAP

Decreasing Short

182

53.5392 GBP

1p ordinary

SWAP

Increasing Short

149

53.6250 GBP

1p ordinary

SWAP

Increasing Long

400

53.5555 GBP

1p ordinary

SWAP

Increasing Long

1,162

53.5555 GBP

1p ordinary

SWAP

Opening Short

5

53.5542 GBP

1p ordinary

SWAP

Opening Long

4,376

53.5500 GBP

1p ordinary

SWAP

Increasing Long

204

53.5419 GBP

1p ordinary

SWAP

Decreasing Short

1

53.5755 GBP

1p ordinary

SWAP

Decreasing Short

13,317

53.3080 GBP

1p ordinary

SWAP

Decreasing Short

1,612

53.5392 GBP

1p ordinary

SWAP

Decreasing Short

269

53.5755 GBP

1p ordinary

SWAP

Decreasing Short

71

53.6196 GBP

1p ordinary

SWAP

Opening Short

25,000

53.5711 GBP

1p ordinary

SWAP

Decreasing Short

4

53.4853 GBP

1p ordinary

SWAP

Increasing Short

121

53.4149 GBP

1p ordinary

SWAP

Decreasing Long

4,516

53.5343 GBP

1p ordinary

SWAP

Increasing Short

6,673

53.5500 GBP

1p ordinary

SWAP

Decreasing Short

2

53.6500 GBP

1p ordinary

SWAP

Increasing Short

1

53.4250 GBP

1p ordinary

SWAP

Increasing Short

5

53.5510 GBP

1p ordinary

SWAP

Decreasing Long

4

53.7750 GBP

1p ordinary

SWAP

Increasing Short

2

53.7750 GBP

1p ordinary

SWAP

Decreasing Long

9

53.5055 GBP

1p ordinary

SWAP

Closing Short

2,583

53.5911 GBP

1p ordinary

SWAP

Opening Long

2,645

53.5911 GBP

1p ordinary

SWAP

Decreasing Long

663

53.4208 GBP

1p ordinary

SWAP

Increasing Short

2

53.7750 GBP

1p ordinary

SWAP

Decreasing Short

1

53.4852 GBP

1p ordinary

SWAP

Increasing Short

6,860

53.4950 GBP

1p ordinary

SWAP

Decreasing Short

543

53.4853 GBP

1p ordinary

SWAP

Decreasing Long

11,850

53.5500 GBP

1p ordinary

SWAP

Decreasing Short

1

53.4250 GBP

1p ordinary

SWAP

Increasing Short

99

53.3053 GBP

1p ordinary

SWAP

Decreasing Long

158

53.7492 GBP

1p ordinary

SWAP

Increasing Short

98

53.7483 GBP

1p ordinary

SWAP

Increasing Long

232

53.5795 GBP

1p ordinary

SWAP

Closing Long

2,645

53.5541 GBP

1p ordinary

SWAP

Opening Short

5,975

53.5541 GBP

1p ordinary

SWAP

Increasing Long

811

53.5500 GBP

1p ordinary

SWAP

Decreasing Short

5,580

53.3242 GBP

1p ordinary

SWAP

Increasing Short

18

53.4053 GBP

1p ordinary

SWAP

Decreasing Long

469

53.7277 GBP

1p ordinary

SWAP

Increasing Short

285

53.7278 GBP

1p ordinary

SWAP

Closing Long

834

53.6452 GBP

1p ordinary

SWAP

Opening Short

109

53.6452 GBP

1p ordinary

SWAP

Decreasing Short

1,599

53.5500 GBP

1p ordinary

SWAP

Increasing Long

5,282

53.5500 GBP

1p ordinary

SWAP

Increasing Short

411

53.4053 GBP

1p ordinary

SWAP

Decreasing Long

178

53.7215 GBP

1p ordinary

SWAP

Increasing Short

218

53.6868 GBP

1p ordinary

SWAP

Increasing Short

884

53.4096 GBP

1p ordinary

SWAP

Increasing Long

64

53.5000 GBP

1p ordinary

SWAP

Increasing Short

126

53.4009 GBP

1p ordinary

SWAP

Increasing Short

67

53.6500 GBP

1p ordinary

SWAP

Decreasing Long

425

53.3250 GBP

1p ordinary

SWAP

Increasing Short

6,063

53.5510 GBP

1p ordinary

SWAP

Closing Short

1,060

53.5484 GBP

1p ordinary

SWAP

Opening Long

2,681

53.5484 GBP

1p ordinary

SWAP

Decreasing Long

3,641

53.6352 GBP

1p ordinary

SWAP

Increasing Short

945

53.3912 GBP

1p ordinary

SWAP

Increasing Long

288

53.5500 GBP

1p ordinary

SWAP

Increasing Long

312

53.5000 GBP

1p ordinary

SWAP

Increasing Short

48

53.4628 GBP

1p ordinary

SWAP

Closing Long

2,969

53.5500 GBP

1p ordinary

SWAP

Opening Short

2,376

53.5500 GBP

1p ordinary

SWAP

Decreasing Long

11,389

53.5233 GBP

1p ordinary

SWAP

Decreasing Short

260

53.5061 GBP

1p ordinary

SWAP

Increasing Short

1,413

53.6774 GBP

1p ordinary

SWAP

Closing Short

3,529

53.5191 GBP

1p ordinary

SWAP

Opening Long

1,545

53.5191 GBP

1p ordinary

SWAP

Closing Long

1,545

53.5054 GBP

1p ordinary

SWAP

Opening Short

26,723

53.5054 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:

02 Jun 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213