Barclays Regulatory News (BARC)

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:

26 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:

2,787,414

1.81%

2,371,257

1.54%

(2)

Cash-settled derivatives:

1,917,877

1.25%

2,402,748

1.56%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

4,705,291

3.06%

4,774,005

3.10%

(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

66,874

55.1001 GBP

1p ordinary

Purchase

62,836

55.0852 GBP

1p ordinary

Purchase

53,018

55.1000 GBP

1p ordinary

Purchase

42,994

55.1500 GBP

1p ordinary

Purchase

25,000

55.0110 GBP

1p ordinary

Purchase

19,631

55.1008 GBP

1p ordinary

Purchase

5,849

55.0962 GBP

1p ordinary

Purchase

5,590

55.1223 GBP

1p ordinary

Purchase

4,942

55.0949 GBP

1p ordinary

Purchase

4,450

54.9956 GBP

1p ordinary

Purchase

3,703

55.1073 GBP

1p ordinary

Purchase

2,561

55.1132 GBP

1p ordinary

Purchase

2,053

55.1139 GBP

1p ordinary

Purchase

1,897

55.0500 GBP

1p ordinary

Purchase

1,390

55.0506 GBP

1p ordinary

Purchase

1,129

55.0356 GBP

1p ordinary

Purchase

1,113

55.0984 GBP

1p ordinary

Purchase

908

54.9388 GBP

1p ordinary

Purchase

793

55.1269 GBP

1p ordinary

Purchase

734

55.1021 GBP

1p ordinary

Purchase

720

55.0518 GBP

1p ordinary

Purchase

572

55.0250 GBP

1p ordinary

Purchase

542

55.0623 GBP

1p ordinary

Purchase

494

55.0104 GBP

1p ordinary

Purchase

450

55.0325 GBP

1p ordinary

Purchase

409

55.0942 GBP

1p ordinary

Purchase

362

55.0288 GBP

1p ordinary

Purchase

312

55.0750 GBP

1p ordinary

Purchase

239

55.1051 GBP

1p ordinary

Purchase

146

55.1089 GBP

1p ordinary

Purchase

132

55.0102 GBP

1p ordinary

Purchase

93

55.1231 GBP

1p ordinary

Purchase

72

55.1090 GBP

1p ordinary

Purchase

61

54.9983 GBP

1p ordinary

Purchase

46

55.0760 GBP

1p ordinary

Purchase

44

55.1750 GBP

1p ordinary

Purchase

40

55.0000 GBP

1p ordinary

Purchase

37

55.0944 GBP

1p ordinary

Purchase

31

55.0114 GBP

1p ordinary

Purchase

23

55.0239 GBP

1p ordinary

Purchase

14

55.0375 GBP

ADR

Purchase

13

74.5400 USD

1p ordinary

Purchase

7

55.0947 GBP

1p ordinary

Sale

109,987

55.1000 GBP

1p ordinary

Sale

56,259

55.0996 GBP

1p ordinary

Sale

16,241

55.1110 GBP

1p ordinary

Sale

14,128

55.1083 GBP

1p ordinary

Sale

13,015

55.0966 GBP

1p ordinary

Sale

11,361

55.0148 GBP

1p ordinary

Sale

10,496

55.0976 GBP

1p ordinary

Sale

9,540

55.1500 GBP

1p ordinary

Sale

7,790

55.0673 GBP

1p ordinary

Sale

6,047

55.0935 GBP

1p ordinary

Sale

3,466

55.0828 GBP

1p ordinary

Sale

3,398

55.0977 GBP

1p ordinary

Sale

3,223

55.1134 GBP

1p ordinary

Sale

3,142

55.0969 GBP

1p ordinary

Sale

2,695

55.0668 GBP

1p ordinary

Sale

2,693

55.0458 GBP

1p ordinary

Sale

2,411

55.0787 GBP

1p ordinary

Sale

1,918

55.0745 GBP

1p ordinary

Sale

1,431

55.0417 GBP

1p ordinary

Sale

1,302

55.0876 GBP

1p ordinary

Sale

1,232

55.0386 GBP

1p ordinary

Sale

1,081

55.1146 GBP

1p ordinary

Sale

936

55.0442 GBP

1p ordinary

Sale

858

55.1149 GBP

1p ordinary

Sale

796

54.9293 GBP

1p ordinary

Sale

671

55.1008 GBP

1p ordinary

Sale

621

55.0500 GBP

1p ordinary

Sale

604

55.0942 GBP

1p ordinary

Sale

410

55.1277 GBP

1p ordinary

Sale

366

55.0963 GBP

1p ordinary

Sale

351

55.0250 GBP

1p ordinary

Sale

302

55.1062 GBP

1p ordinary

Sale

265

55.1196 GBP

1p ordinary

Sale

259

55.1204 GBP

1p ordinary

Sale

255

55.1250 GBP

1p ordinary

Sale

193

55.1349 GBP

1p ordinary

Sale

146

55.1144 GBP

1p ordinary

Sale

121

54.9500 GBP

1p ordinary

Sale

115

55.0955 GBP

1p ordinary

Sale

108

55.1087 GBP

1p ordinary

Sale

93

55.1286 GBP

1p ordinary

Sale

85

55.0867 GBP

1p ordinary

Sale

80

54.8956 GBP

1p ordinary

Sale

74

55.0750 GBP

1p ordinary

Sale

64

55.0000 GBP

1p ordinary

Sale

52

55.0658 GBP

1p ordinary

Sale

36

54.8995 GBP

ADR

Sale

13

74.5400 USD

1p ordinary

Sale

6

55.3500 GBP

1p ordinary

Sale

4

55.0961 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

80

54.8956 GBP

1p ordinary

SWAP

Increasing Long

36

54.8995 GBP

1p ordinary

SWAP

Increasing Long

6

54.9750 GBP

1p ordinary

SWAP

Increasing Long

11,361

55.0148 GBP

1p ordinary

SWAP

Increasing Long

936

55.0442 GBP

1p ordinary

SWAP

Increasing Long

2,693

55.0458 GBP

1p ordinary

SWAP

Increasing Long

496

55.0500 GBP

1p ordinary

SWAP

Increasing Long

374

55.0518 GBP

1p ordinary

SWAP

Increasing Long

6,800

55.0673 GBP

1p ordinary

SWAP

Increasing Long

1,918

55.0745 GBP

1p ordinary

SWAP

Increasing Long

1,781

55.0851 GBP

1p ordinary

SWAP

Increasing Long

4

55.0950 GBP

1p ordinary

SWAP

Increasing Long

723

55.0952 GBP

1p ordinary

SWAP

Increasing Long

115

55.0955 GBP

1p ordinary

SWAP

Increasing Long

2,691

55.0961 GBP

1p ordinary

SWAP

Increasing Long

366

55.0963 GBP

1p ordinary

SWAP

Increasing Long

3,142

55.0969 GBP

1p ordinary

SWAP

Increasing Long

10,496

55.0976 GBP

1p ordinary

SWAP

Increasing Long

57,453

55.1000 GBP

1p ordinary

SWAP

Increasing Long

8

55.1250 GBP

1p ordinary

SWAP

Increasing Long

4

55.1494 GBP

1p ordinary

SWAP

Decreasing Long

6

54.9750 GBP

1p ordinary

SWAP

Decreasing Long

4,450

54.9956 GBP

1p ordinary

SWAP

Decreasing Long

25,000

55.0110 GBP

1p ordinary

SWAP

Decreasing Long

23

55.0239 GBP

1p ordinary

SWAP

Decreasing Long

362

55.0288 GBP

1p ordinary

SWAP

Decreasing Long

1,821

55.0500 GBP

1p ordinary

SWAP

Decreasing Long

47

55.0505 GBP

1p ordinary

SWAP

Decreasing Long

1,509

55.0544 GBP

1p ordinary

SWAP

Decreasing Long

542

55.0623 GBP

1p ordinary

SWAP

Decreasing Long

6,496

55.0852 GBP

1p ordinary

SWAP

Decreasing Long

7

55.0947 GBP

1p ordinary

SWAP

Decreasing Long

10,336

55.0978 GBP

1p ordinary

SWAP

Decreasing Long

562

55.0980 GBP

1p ordinary

SWAP

Decreasing Long

1,317

55.1000 GBP

1p ordinary

SWAP

Decreasing Long

734

55.1021 GBP

1p ordinary

SWAP

Decreasing Long

3,160

55.1027 GBP

1p ordinary

SWAP

Decreasing Long

298

55.1043 GBP

1p ordinary

SWAP

Decreasing Long

10,328

55.1082 GBP

1p ordinary

SWAP

Decreasing Long

2,926

55.1125 GBP

1p ordinary

SWAP

Decreasing Long

2,561

55.1132 GBP

1p ordinary

SWAP

Decreasing Long

2,053

55.1139 GBP

1p ordinary

SWAP

Decreasing Long

5,590

55.1223 GBP

1p ordinary

SWAP

Decreasing Long

8

55.1250 GBP

1p ordinary

SWAP

Decreasing Long

42,911

55.1500 GBP

1p ordinary

SWAP

Decreasing Short

54

55.0994 GBP

1p ordinary

CFD

Decreasing Short

887

55.0961 GBP

1p ordinary

CFD

Decreasing Short

206

55.0983 GBP

1p ordinary

CFD

Increasing Short

170

55.0776 GBP

1p ordinary

CFD

Increasing Short

1,786

55.0832 GBP

1p ordinary

CFD

Increasing Short

13

55.1538 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:

27 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213