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:

20 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:

2,099,981

1.36%

1,885,643

1.22%

(2)

Cash-settled derivatives:

1,215,331

0.79%

1,594,186

1.04%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

3,315,312

2.15%

3,479,829

2.26%

(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

270,833

49.0300 GBP

1p ordinary

Purchase

32,575

48.8877 GBP

1p ordinary

Purchase

30,280

48.8600 GBP

1p ordinary

Purchase

25,000

49.1274 GBP

1p ordinary

Purchase

24,328

48.8603 GBP

1p ordinary

Purchase

16,566

49.0208 GBP

1p ordinary

Purchase

15,100

49.1324 GBP

1p ordinary

Purchase

11,150

49.1445 GBP

1p ordinary

Purchase

4,756

49.2046 GBP

1p ordinary

Purchase

4,438

49.1133 GBP

1p ordinary

Purchase

4,258

48.9006 GBP

1p ordinary

Purchase

4,240

49.1137 GBP

1p ordinary

Purchase

3,152

49.1144 GBP

1p ordinary

Purchase

2,768

48.9653 GBP

1p ordinary

Purchase

2,277

48.8941 GBP

1p ordinary

Purchase

2,230

49.1535 GBP

1p ordinary

Purchase

2,228

49.1591 GBP

1p ordinary

Purchase

1,773

49.2406 GBP

ADR

Purchase

1,600

66.3600 USD

1p ordinary

Purchase

1,422

48.9903 GBP

1p ordinary

Purchase

1,401

48.9150 GBP

1p ordinary

Purchase

1,395

48.8653 GBP

1p ordinary

Purchase

1,305

48.9839 GBP

1p ordinary

Purchase

1,291

49.1820 GBP

1p ordinary

Purchase

1,085

48.8565 GBP

1p ordinary

Purchase

1,066

49.2177 GBP

1p ordinary

Purchase

1,008

49.1500 GBP

1p ordinary

Purchase

937

48.8620 GBP

1p ordinary

Purchase

892

49.2025 GBP

1p ordinary

Purchase

876

49.1219 GBP

1p ordinary

Purchase

830

49.3018 GBP

1p ordinary

Purchase

828

49.2113 GBP

1p ordinary

Purchase

759

49.0353 GBP

1p ordinary

Purchase

683

49.2967 GBP

1p ordinary

Purchase

630

48.8839 GBP

1p ordinary

Purchase

500

49.1117 GBP

1p ordinary

Purchase

481

49.1712 GBP

1p ordinary

Purchase

459

49.1411 GBP

1p ordinary

Purchase

423

49.1792 GBP

1p ordinary

Purchase

389

49.1623 GBP

1p ordinary

Purchase

371

49.1398 GBP

1p ordinary

Purchase

350

49.2721 GBP

1p ordinary

Purchase

339

49.1595 GBP

1p ordinary

Purchase

320

48.9789 GBP

1p ordinary

Purchase

311

48.8203 GBP

1p ordinary

Purchase

301

49.0039 GBP

1p ordinary

Purchase

301

49.1400 GBP

1p ordinary

Purchase

292

49.1295 GBP

1p ordinary

Purchase

286

49.3900 GBP

1p ordinary

Purchase

283

49.1189 GBP

1p ordinary

Purchase

275

49.2867 GBP

1p ordinary

Purchase

274

49.2701 GBP

1p ordinary

Purchase

253

49.0270 GBP

ADR

Purchase

200

66.5900 USD

1p ordinary

Purchase

189

49.0949 GBP

1p ordinary

Purchase

176

49.2300 GBP

1p ordinary

Purchase

141

49.2548 GBP

1p ordinary

Purchase

135

49.1700 GBP

1p ordinary

Purchase

135

49.1752 GBP

1p ordinary

Purchase

132

49.1000 GBP

1p ordinary

Purchase

105

49.2034 GBP

1p ordinary

Purchase

103

49.2500 GBP

1p ordinary

Purchase

96

49.1455 GBP

1p ordinary

Purchase

94

49.4600 GBP

1p ordinary

Purchase

94

49.0892 GBP

1p ordinary

Purchase

70

49.2100 GBP

1p ordinary

Purchase

65

49.1200 GBP

1p ordinary

Purchase

61

49.3450 GBP

1p ordinary

Purchase

59

49.2000 GBP

1p ordinary

Purchase

49

49.1550 GBP

1p ordinary

Purchase

46

49.0615 GBP

1p ordinary

Purchase

45

49.1338 GBP

ADR

Purchase

30

66.0800 USD

1p ordinary

Purchase

9

48.9500 GBP

1p ordinary

Purchase

8

49.0387 GBP

1p ordinary

Purchase

3

49.0400 GBP

1p ordinary

Sale

87,159

48.8600 GBP

1p ordinary

Sale

74,266

49.1204 GBP

1p ordinary

Sale

54,753

48.9432 GBP

1p ordinary

Sale

36,534

49.0977 GBP

1p ordinary

Sale

13,391

49.1500 GBP

1p ordinary

Sale

10,671

48.8596 GBP

1p ordinary

Sale

10,358

48.8582 GBP

1p ordinary

Sale

10,032

49.0901 GBP

1p ordinary

Sale

9,367

49.1355 GBP

1p ordinary

Sale

7,636

49.0986 GBP

1p ordinary

Sale

5,942

49.2154 GBP

1p ordinary

Sale

5,626

49.1450 GBP

1p ordinary

Sale

4,435

48.8551 GBP

1p ordinary

Sale

2,931

48.8552 GBP

1p ordinary

Sale

2,872

49.1135 GBP

1p ordinary

Sale

2,723

49.1201 GBP

1p ordinary

Sale

2,387

49.0798 GBP

1p ordinary

Sale

2,357

49.1508 GBP

1p ordinary

Sale

2,266

49.1147 GBP

1p ordinary

Sale

2,177

49.1980 GBP

1p ordinary

Sale

2,129

48.9006 GBP

1p ordinary

Sale

1,684

49.1651 GBP

ADR

Sale

1,600

66.3600 USD

1p ordinary

Sale

1,522

49.0496 GBP

1p ordinary

Sale

1,468

49.1897 GBP

1p ordinary

Sale

1,188

49.1006 GBP

1p ordinary

Sale

1,130

49.0554 GBP

1p ordinary

Sale

837

49.1284 GBP

1p ordinary

Sale

693

48.9198 GBP

1p ordinary

Sale

687

49.1574 GBP

1p ordinary

Sale

663

48.8570 GBP

1p ordinary

Sale

508

49.0533 GBP

1p ordinary

Sale

446

49.2025 GBP

1p ordinary

Sale

418

49.1631 GBP

1p ordinary

Sale

359

48.8860 GBP

1p ordinary

Sale

340

49.1811 GBP

1p ordinary

Sale

332

48.8639 GBP

1p ordinary

Sale

328

49.3459 GBP

1p ordinary

Sale

308

48.9046 GBP

1p ordinary

Sale

299

49.1650 GBP

1p ordinary

Sale

291

49.1747 GBP

1p ordinary

Sale

286

49.2241 GBP

1p ordinary

Sale

240

49.0927 GBP

ADR

Sale

200

66.5900 USD

1p ordinary

Sale

194

49.2013 GBP

1p ordinary

Sale

187

48.9269 GBP

1p ordinary

Sale

169

49.1328 GBP

1p ordinary

Sale

163

48.8597 GBP

1p ordinary

Sale

154

49.1400 GBP

1p ordinary

Sale

137

49.2701 GBP

1p ordinary

Sale

107

49.1685 GBP

1p ordinary

Sale

103

49.2500 GBP

1p ordinary

Sale

91

49.0750 GBP

1p ordinary

Sale

73

49.2171 GBP

1p ordinary

Sale

71

48.8795 GBP

1p ordinary

Sale

66

49.1000 GBP

1p ordinary

Sale

65

49.1200 GBP

1p ordinary

Sale

65

49.1300 GBP

1p ordinary

Sale

54

49.1860 GBP

1p ordinary

Sale

53

49.1652 GBP

1p ordinary

Sale

46

49.0367 GBP

ADR

Sale

30

66.0800 USD

1p ordinary

Sale

12

49.0700 GBP

1p ordinary

Sale

7

48.8528 GBP

1p ordinary

Sale

4

49.0891 GBP

1p ordinary

Sale

3

49.2051 GBP

1p ordinary

Sale

2

49.1800 GBP

1p ordinary

Sale

2

48.8550 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

4,435

48.8551 GBP

1p ordinary

SWAP

Decreasing Short

163

48.8598 GBP

1p ordinary

SWAP

Decreasing Short

71

48.8795 GBP

1p ordinary

SWAP

Decreasing Short

127

48.8924 GBP

1p ordinary

SWAP

Decreasing Short

3

49.2066 GBP

1p ordinary

SWAP

Increasing Short

2,065

49.0461 GBP

1p ordinary

SWAP

Increasing Short

1,353

49.0462 GBP

1p ordinary

SWAP

Increasing Short

25,000

49.1274 GBP

1p ordinary

SWAP

Increasing Long

23

48.8504 USD

1p ordinary

SWAP

Increasing Long

7

48.8528 GBP

1p ordinary

SWAP

Increasing Long

2

48.8550 GBP

1p ordinary

SWAP

Increasing Long

2,931

48.8552 GBP

1p ordinary

SWAP

Increasing Long

23,126

48.8565 GBP

1p ordinary

SWAP

Increasing Long

663

48.8570 GBP

1p ordinary

SWAP

Increasing Long

2,570

48.8575 GBP

1p ordinary

SWAP

Increasing Long

65

48.8581 GBP

1p ordinary

SWAP

Increasing Long

10,293

48.8582 GBP

1p ordinary

SWAP

Increasing Long

10,671

48.8596 GBP

1p ordinary

SWAP

Increasing Long

50,348

48.8600 GBP

1p ordinary

SWAP

Increasing Long

332

48.8639 GBP

1p ordinary

SWAP

Increasing Long

308

48.9046 GBP

1p ordinary

SWAP

Increasing Long

187

48.9269 GBP

1p ordinary

SWAP

Increasing Long

46

49.0367 GBP

1p ordinary

SWAP

Increasing Long

482

49.0474 GBP

1p ordinary

SWAP

Increasing Long

1,522

49.0496 GBP

1p ordinary

SWAP

Increasing Long

1,722

49.0553 GBP

1p ordinary

SWAP

Increasing Long

7,406

49.0781 GBP

1p ordinary

SWAP

Increasing Long

240

49.0927 GBP

1p ordinary

SWAP

Increasing Long

36,534

49.0977 GBP

1p ordinary

SWAP

Increasing Long

7,636

49.0986 GBP

1p ordinary

SWAP

Increasing Long

6,090

49.1112 GBP

1p ordinary

SWAP

Increasing Long

548

49.1129 GBP

1p ordinary

SWAP

Increasing Long

315

49.1155 GBP

1p ordinary

SWAP

Increasing Long

517

49.1166 GBP

1p ordinary

SWAP

Increasing Long

74,266

49.1204 GBP

1p ordinary

SWAP

Increasing Long

13,391

49.1500 GBP

1p ordinary

SWAP

Increasing Long

298

49.1650 GBP

1p ordinary

SWAP

Increasing Long

1,684

49.1651 GBP

1p ordinary

SWAP

Increasing Long

53

49.1652 GBP

1p ordinary

SWAP

Increasing Long

54

49.1860 GBP

1p ordinary

SWAP

Increasing Long

5,942

49.2154 GBP

1p ordinary

SWAP

Increasing Long

109

49.2227 GBP

1p ordinary

SWAP

Increasing Long

177

49.2249 GBP

1p ordinary

SWAP

Decreasing Long

311

48.8203 GBP

1p ordinary

SWAP

Decreasing Long

2,820

48.8600 GBP

1p ordinary

SWAP

Decreasing Long

750

48.8622 GBP

1p ordinary

SWAP

Decreasing Long

1,606

48.8638 GBP

1p ordinary

SWAP

Decreasing Long

1,395

48.8652 GBP

1p ordinary

SWAP

Decreasing Long

630

48.8839 GBP

1p ordinary

SWAP

Decreasing Long

2,277

48.8941 GBP

1p ordinary

SWAP

Decreasing Long

12,229

48.9068 GBP

1p ordinary

SWAP

Decreasing Long

30

48.9500 GBP

1p ordinary

SWAP

Decreasing Long

320

48.9827 GBP

1p ordinary

SWAP

Decreasing Long

1,305

48.9839 GBP

1p ordinary

SWAP

Decreasing Long

538

49.0147 GBP

1p ordinary

SWAP

Decreasing Long

16,566

49.0208 GBP

1p ordinary

SWAP

Decreasing Long

270,833

49.0300 GBP

1p ordinary

SWAP

Decreasing Long

5

49.0382 GBP

1p ordinary

SWAP

Decreasing Long

3

49.0383 GBP

1p ordinary

SWAP

Decreasing Long

37

49.0618 GBP

1p ordinary

SWAP

Decreasing Long

94

49.0892 GBP

1p ordinary

SWAP

Decreasing Long

189

49.0949 GBP

1p ordinary

SWAP

Decreasing Long

98

49.1129 GBP

1p ordinary

SWAP

Decreasing Long

91

49.1149 GBP

1p ordinary

SWAP

Decreasing Long

45

49.1338 GBP

1p ordinary

SWAP

Decreasing Long

14,562

49.1367 GBP

1p ordinary

SWAP

Decreasing Long

301

49.1400 GBP

1p ordinary

SWAP

Decreasing Long

96

49.1454 GBP

1p ordinary

SWAP

Decreasing Long

1,203

49.1496 GBP

1p ordinary

SWAP

Decreasing Long

51

49.1509 GBP

1p ordinary

SWAP

Decreasing Long

2,132

49.1554 GBP

1p ordinary

SWAP

Decreasing Long

389

49.1623 GBP

1p ordinary

SWAP

Decreasing Long

248

49.1759 GBP

1p ordinary

SWAP

Decreasing Long

1,291

49.1820 GBP

1p ordinary

SWAP

Decreasing Long

937

49.1967 GBP

1p ordinary

SWAP

Decreasing Long

6

49.2000 GBP

1p ordinary

SWAP

Decreasing Long

2,256

49.2031 GBP

1p ordinary

SWAP

Decreasing Long

2,500

49.2059 GBP

1p ordinary

SWAP

Decreasing Long

244

49.2549 GBP

1p ordinary

SWAP

Decreasing Long

350

49.2721 GBP

1p ordinary

SWAP

Decreasing Long

830

49.3018 GBP

1p ordinary

SWAP

Increasing Short

96

48.8600 GBP

1p ordinary

CFD

Increasing Long

108

49.0561 GBP

1p ordinary

CFD

Increasing Long

2,642

49.1148 GBP

1p ordinary

CFD

Increasing Long

1,057

49.1774 GBP

1p ordinary

CFD

Increasing Long

245

49.1965 GBP

1p ordinary

CFD

Decreasing Long

5,016

48.8634 GBP

1p ordinary

CFD

Decreasing Long

5,591

49.0369 GBP

1p ordinary

CFD

Decreasing Long

876

49.0402 GBP

1p ordinary

CFD

Decreasing Long

1,024

49.1001 GBP

1p ordinary

CFD

Decreasing Long

70

49.1061 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:

21 Apr 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213