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:

20 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:

2,746,611

1.78%

2,273,797

1.48%

(2)

Cash-settled derivatives:

2,292,164

1.49%

2,362,662

1.53%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

5,038,775

3.27%

4,636,459

3.01%

(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

185,810

54.6512 GBP

1p ordinary

Purchase

71,133

54.6559 GBP

1p ordinary

Purchase

53,235

54.6500 GBP

1p ordinary

Purchase

50,000

54.8332 GBP

1p ordinary

Purchase

21,142

54.9016 GBP

1p ordinary

Purchase

15,000

54.8165 GBP

1p ordinary

Purchase

14,297

54.7490 GBP

1p ordinary

Purchase

10,000

54.7695 GBP

1p ordinary

Purchase

6,979

54.9475 GBP

1p ordinary

Purchase

5,000

54.9894 GBP

1p ordinary

Purchase

3,340

54.7064 GBP

1p ordinary

Purchase

2,586

54.7122 GBP

1p ordinary

Purchase

2,470

54.7498 GBP

1p ordinary

Purchase

2,333

54.6461 GBP

1p ordinary

Purchase

1,979

54.9450 GBP

1p ordinary

Purchase

1,850

54.9288 GBP

1p ordinary

Purchase

1,840

54.8500 GBP

1p ordinary

Purchase

1,672

54.8735 GBP

1p ordinary

Purchase

1,633

54.8976 GBP

1p ordinary

Purchase

1,422

54.8663 GBP

1p ordinary

Purchase

1,234

54.8792 GBP

1p ordinary

Purchase

915

55.1001 GBP

1p ordinary

Purchase

911

54.8582 GBP

1p ordinary

Purchase

804

54.8884 GBP

1p ordinary

Purchase

789

55.0100 GBP

1p ordinary

Purchase

776

54.8280 GBP

1p ordinary

Purchase

745

54.8571 GBP

1p ordinary

Purchase

561

54.8594 GBP

1p ordinary

Purchase

348

54.8333 GBP

1p ordinary

Purchase

266

54.8809 GBP

1p ordinary

Purchase

213

54.8461 GBP

1p ordinary

Purchase

180

54.8466 GBP

1p ordinary

Purchase

127

54.8448 GBP

1p ordinary

Purchase

105

54.8416 GBP

1p ordinary

Purchase

86

54.6543 GBP

1p ordinary

Purchase

80

54.8987 GBP

1p ordinary

Purchase

67

54.8250 GBP

1p ordinary

Purchase

54

55.0000 GBP

1p ordinary

Purchase

40

54.6650 GBP

1p ordinary

Purchase

23

54.7858 GBP

1p ordinary

Purchase

6

54.8750 GBP

1p ordinary

Purchase

6

55.1000 GBP

1p ordinary

Purchase

5

54.8000 GBP

ADR

Purchase

5

73.8600 USD

1p ordinary

Sale

83,186

54.6500 GBP

1p ordinary

Sale

58,500

54.7244 GBP

1p ordinary

Sale

12,861

54.6489 GBP

1p ordinary

Sale

12,002

54.7651 GBP

1p ordinary

Sale

11,487

54.7784 GBP

1p ordinary

Sale

11,040

55.0203 GBP

1p ordinary

Sale

6,642

55.0500 GBP

1p ordinary

Sale

5,153

54.7412 GBP

1p ordinary

Sale

5,000

54.7635 GBP

1p ordinary

Sale

4,402

54.9717 GBP

1p ordinary

Sale

4,000

54.7538 GBP

1p ordinary

Sale

3,055

54.9591 GBP

1p ordinary

Sale

2,787

54.6595 GBP

1p ordinary

Sale

2,197

54.9769 GBP

1p ordinary

Sale

1,946

54.8605 GBP

1p ordinary

Sale

1,940

54.9019 GBP

1p ordinary

Sale

1,903

54.7477 GBP

1p ordinary

Sale

1,798

54.7549 GBP

1p ordinary

Sale

1,473

54.7781 GBP

1p ordinary

Sale

1,422

54.8680 GBP

1p ordinary

Sale

1,323

54.7478 GBP

1p ordinary

Sale

1,299

54.8638 GBP

1p ordinary

Sale

1,113

54.6567 GBP

1p ordinary

Sale

1,018

54.7885 GBP

1p ordinary

Sale

972

54.7586 GBP

1p ordinary

Sale

773

54.8811 GBP

1p ordinary

Sale

557

54.6594 GBP

1p ordinary

Sale

485

54.9102 GBP

1p ordinary

Sale

328

54.9444 GBP

1p ordinary

Sale

260

54.8028 GBP

1p ordinary

Sale

213

54.7713 GBP

1p ordinary

Sale

200

54.8250 GBP

1p ordinary

Sale

178

54.8964 GBP

1p ordinary

Sale

169

54.7940 GBP

1p ordinary

Sale

163

55.1444 GBP

1p ordinary

Sale

145

54.9207 GBP

1p ordinary

Sale

144

54.9500 GBP

1p ordinary

Sale

110

54.8609 GBP

1p ordinary

Sale

67

54.7000 GBP

1p ordinary

Sale

23

54.8847 GBP

1p ordinary

Sale

17

54.8750 GBP

ADR

Sale

5

73.8600 USD

1p ordinary

Sale

2

54.8195 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

10,000

54.7695 GBP

1p ordinary

SWAP

Increasing Short

50,000

54.8332 GBP

1p ordinary

SWAP

Increasing Long

33,298

54.6461 GBP

1p ordinary

SWAP

Increasing Long

12,861

54.6489 GBP

1p ordinary

SWAP

Increasing Long

52,555

54.6500 GBP

1p ordinary

SWAP

Increasing Long

1,113

54.6567 GBP

1p ordinary

SWAP

Increasing Long

557

54.6594 GBP

1p ordinary

SWAP

Increasing Long

2,787

54.6595 GBP

1p ordinary

SWAP

Increasing Long

772

54.7448 GBP

1p ordinary

SWAP

Increasing Long

2,036

54.7638 GBP

1p ordinary

SWAP

Increasing Long

12,002

54.7651 GBP

1p ordinary

SWAP

Increasing Long

635

54.7706 GBP

1p ordinary

SWAP

Increasing Long

11,487

54.7784 GBP

1p ordinary

SWAP

Increasing Long

32

54.7994 GBP

1p ordinary

SWAP

Increasing Long

2

54.8195 GBP

1p ordinary

SWAP

Increasing Long

22,066

54.8436 GBP

1p ordinary

SWAP

Increasing Long

63

54.8494 GBP

1p ordinary

SWAP

Increasing Long

110

54.8554 GBP

1p ordinary

SWAP

Increasing Long

1,181

54.8722 GBP

1p ordinary

SWAP

Increasing Long

773

54.8811 GBP

1p ordinary

SWAP

Increasing Long

485

54.9102 GBP

1p ordinary

SWAP

Increasing Long

145

54.9207 GBP

1p ordinary

SWAP

Increasing Long

328

54.9445 GBP

1p ordinary

SWAP

Increasing Long

149

54.9455 GBP

1p ordinary

SWAP

Increasing Long

6

54.9494 GBP

1p ordinary

SWAP

Increasing Long

3,055

54.9591 GBP

1p ordinary

SWAP

Increasing Long

4,396

54.9718 GBP

1p ordinary

SWAP

Increasing Long

49

54.9750 GBP

1p ordinary

SWAP

Increasing Long

2,197

54.9769 GBP

1p ordinary

SWAP

Increasing Long

11,040

55.0203 GBP

1p ordinary

SWAP

Increasing Long

6,642

55.0500 GBP

1p ordinary

SWAP

Increasing Long

163

55.1444 GBP

1p ordinary

SWAP

Decreasing Long

173,011

54.6500 GBP

1p ordinary

SWAP

Decreasing Long

67,463

54.6527 GBP

1p ordinary

SWAP

Decreasing Long

86

54.6543 GBP

1p ordinary

SWAP

Decreasing Long

30,633

54.6569 GBP

1p ordinary

SWAP

Decreasing Long

8,543

54.6622 GBP

1p ordinary

SWAP

Decreasing Long

117

54.7367 GBP

1p ordinary

SWAP

Decreasing Long

2,470

54.7498 GBP

1p ordinary

SWAP

Decreasing Long

15,000

54.8165 GBP

1p ordinary

SWAP

Decreasing Long

91

54.8401 GBP

1p ordinary

SWAP

Decreasing Long

365

54.8402 GBP

1p ordinary

SWAP

Decreasing Long

745

54.8571 GBP

1p ordinary

SWAP

Decreasing Long

80

54.8987 GBP

1p ordinary

SWAP

Decreasing Long

21,142

54.9016 GBP

1p ordinary

SWAP

Decreasing Long

10,000

54.9123 GBP

1p ordinary

SWAP

Decreasing Long

6,979

54.9475 GBP

1p ordinary

SWAP

Decreasing Long

49

54.9750 GBP

1p ordinary

SWAP

Decreasing Long

5,000

54.9894 GBP

1p ordinary

CFD

Decreasing Short

228

54.8116 GBP

1p ordinary

CFD

Decreasing Short

391

54.8170 GBP

1p ordinary

CFD

Increasing Short

123

54.7784 GBP

1p ordinary

CFD

Increasing Short

1,411

55.0676 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 May 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213