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:

17 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:

2,103,706

1.37%

2,005,884

1.30%

(2)

Cash-settled derivatives:

1,335,300

0.87%

1,602,905

1.04%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

3,439,006

2.23%

3,608,789

2.34%

(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

136,133

48.9600 GBP

1p ordinary

Purchase

72,674

49.6900 GBP

1p ordinary

Purchase

69,218

49.8329 GBP

1p ordinary

Purchase

36,001

49.2196 GBP

1p ordinary

Purchase

26,329

48.2193 GBP

1p ordinary

Purchase

25,745

49.7361 GBP

1p ordinary

Purchase

20,193

49.6472 GBP

1p ordinary

Purchase

18,514

49.3595 GBP

1p ordinary

Purchase

15,781

48.2457 GBP

1p ordinary

Purchase

15,633

49.6521 GBP

1p ordinary

Purchase

13,745

49.4359 GBP

1p ordinary

Purchase

12,396

49.5966 GBP

1p ordinary

Purchase

10,347

49.2294 GBP

1p ordinary

Purchase

10,016

49.7755 GBP

1p ordinary

Purchase

5,688

49.1552 GBP

1p ordinary

Purchase

5,094

48.1634 GBP

1p ordinary

Purchase

5,000

49.2788 GBP

1p ordinary

Purchase

4,090

47.9030 GBP

1p ordinary

Purchase

3,561

49.3934 GBP

1p ordinary

Purchase

2,939

49.7252 GBP

1p ordinary

Purchase

2,418

49.7657 GBP

1p ordinary

Purchase

2,340

49.7215 GBP

1p ordinary

Purchase

2,332

49.7924 GBP

1p ordinary

Purchase

2,296

49.6948 GBP

1p ordinary

Purchase

2,270

49.8115 GBP

1p ordinary

Purchase

2,218

49.7469 GBP

1p ordinary

Purchase

2,005

49.7999 GBP

1p ordinary

Purchase

1,877

49.1946 GBP

1p ordinary

Purchase

1,363

47.9738 GBP

1p ordinary

Purchase

1,329

50.0151 GBP

1p ordinary

Purchase

1,155

49.7245 GBP

1p ordinary

Purchase

851

49.6903 GBP

1p ordinary

Purchase

823

49.4015 GBP

1p ordinary

Purchase

780

49.9653 GBP

ADR

Purchase

700

67.7942 USD

1p ordinary

Purchase

633

49.8457 GBP

1p ordinary

Purchase

570

49.5329 GBP

1p ordinary

Purchase

471

49.7075 GBP

1p ordinary

Purchase

467

49.8552 GBP

1p ordinary

Purchase

425

49.7294 GBP

1p ordinary

Purchase

382

50.2294 GBP

1p ordinary

Purchase

380

49.7272 GBP

1p ordinary

Purchase

378

49.5203 GBP

1p ordinary

Purchase

363

49.8669 GBP

1p ordinary

Purchase

358

49.8203 GBP

1p ordinary

Purchase

340

49.7885 GBP

1p ordinary

Purchase

337

49.8173 GBP

1p ordinary

Purchase

331

49.7040 GBP

1p ordinary

Purchase

319

49.8517 GBP

1p ordinary

Purchase

315

49.4846 GBP

1p ordinary

Purchase

303

49.9400 GBP

1p ordinary

Purchase

301

49.7744 GBP

ADR

Purchase

301

68.1486 USD

1p ordinary

Purchase

297

49.9430 GBP

1p ordinary

Purchase

265

49.7600 GBP

1p ordinary

Purchase

254

49.7617 GBP

1p ordinary

Purchase

249

49.7128 GBP

1p ordinary

Purchase

235

49.5000 GBP

1p ordinary

Purchase

213

49.8050 GBP

1p ordinary

Purchase

212

48.6450 GBP

1p ordinary

Purchase

205

48.8951 GBP

1p ordinary

Purchase

190

49.5287 GBP

1p ordinary

Purchase

168

50.1375 GBP

1p ordinary

Purchase

164

50.0215 GBP

1p ordinary

Purchase

157

49.4189 GBP

1p ordinary

Purchase

128

50.0400 GBP

1p ordinary

Purchase

125

49.8300 GBP

1p ordinary

Purchase

110

49.2900 GBP

1p ordinary

Purchase

106

48.9883 GBP

ADR

Purchase

100

67.8060 USD

1p ordinary

Purchase

98

49.7308 GBP

1p ordinary

Purchase

96

49.7127 GBP

1p ordinary

Purchase

90

49.5080 GBP

1p ordinary

Purchase

85

49.8850 GBP

1p ordinary

Purchase

80

49.8773 GBP

1p ordinary

Purchase

79

49.7229 GBP

1p ordinary

Purchase

78

49.4300 GBP

1p ordinary

Purchase

75

50.1950 GBP

1p ordinary

Purchase

72

49.3856 GBP

1p ordinary

Purchase

71

49.5656 GBP

1p ordinary

Purchase

67

49.9917 GBP

1p ordinary

Purchase

59

50.2000 GBP

1p ordinary

Purchase

54

49.7900 GBP

1p ordinary

Purchase

51

50.0784 GBP

1p ordinary

Purchase

48

49.8960 GBP

1p ordinary

Purchase

40

48.6300 GBP

1p ordinary

Purchase

39

49.8200 GBP

1p ordinary

Purchase

31

49.4600 GBP

1p ordinary

Purchase

24

49.6950 GBP

1p ordinary

Purchase

17

49.0647 GBP

1p ordinary

Purchase

11

49.8000 GBP

1p ordinary

Purchase

6

49.6939 GBP

ADR

Purchase

5

68.1500 USD

1p ordinary

Sale

175,253

49.6858 GBP

1p ordinary

Sale

90,580

49.5689 GBP

1p ordinary

Sale

63,238

49.6900 GBP

1p ordinary

Sale

48,682

49.6865 GBP

1p ordinary

Sale

42,295

49.4793 GBP

1p ordinary

Sale

39,045

49.5890 GBP

1p ordinary

Sale

21,271

49.6943 GBP

1p ordinary

Sale

17,052

49.6360 GBP

1p ordinary

Sale

16,671

49.2898 GBP

1p ordinary

Sale

14,037

49.3200 GBP

1p ordinary

Sale

13,457

49.1045 GBP

1p ordinary

Sale

9,286

49.1951 GBP

1p ordinary

Sale

7,653

49.7373 GBP

1p ordinary

Sale

7,230

49.3044 GBP

1p ordinary

Sale

6,710

49.4717 GBP

1p ordinary

Sale

5,523

49.8080 GBP

1p ordinary

Sale

5,000

48.7540 GBP

1p ordinary

Sale

4,073

49.1548 GBP

1p ordinary

Sale

3,800

49.6727 GBP

1p ordinary

Sale

3,310

49.7235 GBP

1p ordinary

Sale

3,200

49.5172 GBP

1p ordinary

Sale

3,054

49.5761 GBP

1p ordinary

Sale

3,040

49.6999 GBP

1p ordinary

Sale

2,245

49.1459 GBP

1p ordinary

Sale

2,226

49.8703 GBP

1p ordinary

Sale

2,167

49.7164 GBP

1p ordinary

Sale

1,709

49.9480 GBP

1p ordinary

Sale

1,603

49.7945 GBP

1p ordinary

Sale

1,281

49.1483 GBP

1p ordinary

Sale

886

50.0223 GBP

1p ordinary

Sale

882

50.0397 GBP

1p ordinary

Sale

860

49.3563 GBP

1p ordinary

Sale

726

49.8762 GBP

1p ordinary

Sale

704

49.8309 GBP

ADR

Sale

700

67.7942 USD

1p ordinary

Sale

686

49.1877 GBP

1p ordinary

Sale

622

49.6816 GBP

1p ordinary

Sale

599

49.5999 GBP

1p ordinary

Sale

595

49.8441 GBP

1p ordinary

Sale

568

48.8290 GBP

1p ordinary

Sale

508

49.3051 GBP

1p ordinary

Sale

498

49.7239 GBP

1p ordinary

Sale

497

49.7178 GBP

1p ordinary

Sale

465

49.6914 GBP

1p ordinary

Sale

403

49.6870 GBP

1p ordinary

Sale

359

48.8787 GBP

1p ordinary

Sale

354

49.7717 GBP

1p ordinary

Sale

343

49.5246 GBP

1p ordinary

Sale

337

49.9410 GBP

1p ordinary

Sale

332

49.8446 GBP

1p ordinary

Sale

309

49.7132 GBP

ADR

Sale

301

68.1486 USD

1p ordinary

Sale

299

49.7333 GBP

1p ordinary

Sale

263

49.7391 GBP

1p ordinary

Sale

217

49.7968 GBP

1p ordinary

Sale

215

48.2754 GBP

1p ordinary

Sale

194

48.8168 GBP

1p ordinary

Sale

158

50.0224 GBP

1p ordinary

Sale

140

49.7763 GBP

1p ordinary

Sale

135

49.7583 GBP

1p ordinary

Sale

131

50.1456 GBP

1p ordinary

Sale

131

48.7490 GBP

ADR

Sale

100

67.8060 USD

1p ordinary

Sale

96

49.3050 GBP

1p ordinary

Sale

90

49.2650 GBP

1p ordinary

Sale

85

48.6500 GBP

1p ordinary

Sale

54

49.7900 GBP

1p ordinary

Sale

46

48.8750 GBP

1p ordinary

Sale

39

49.8310 GBP

1p ordinary

Sale

24

50.0645 GBP

1p ordinary

Sale

22

49.6609 GBP

1p ordinary

Sale

20

49.6825 GBP

1p ordinary

Sale

17

49.7282 GBP

1p ordinary

Sale

6

49.6833 GBP

ADR

Sale

5

68.1500 USD

1p ordinary

Sale

4

49.7250 GBP

1p ordinary

Sale

1

49.6800 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

36,001

49.2196 GBP

1p ordinary

SWAP

Increasing Short

10,347

49.2294 GBP

1p ordinary

SWAP

Increasing Short

18,514

49.3595 GBP

1p ordinary

SWAP

Increasing Short

13,745

49.4359 GBP

1p ordinary

SWAP

Increasing Short

69,218

49.8329 GBP

1p ordinary

SWAP

Increasing Short

67

49.9917 GBP

1p ordinary

SWAP

Decreasing Short

215

48.2754 GBP

1p ordinary

SWAP

Decreasing Short

5,000

48.7540 GBP

1p ordinary

SWAP

Decreasing Short

5,067

48.8062 GBP

1p ordinary

SWAP

Decreasing Short

18,275

48.9214 GBP

1p ordinary

SWAP

Decreasing Short

9,037

49.0545 GBP

1p ordinary

SWAP

Decreasing Short

20,000

49.0647 GBP

1p ordinary

SWAP

Decreasing Short

1,464

49.1953 GBP

1p ordinary

SWAP

Decreasing Short

16,671

49.2898 GBP

1p ordinary

SWAP

Decreasing Short

374

49.4454 GBP

1p ordinary

SWAP

Decreasing Short

6

49.4950 GBP

1p ordinary

SWAP

Decreasing Short

19

49.5021 GBP

1p ordinary

SWAP

Opening Long

90,580

49.5689 GBP

1p ordinary

SWAP

Increasing Long

39,045

49.5890 GBP

1p ordinary

SWAP

Increasing Long

13,504

49.6065 GBP

1p ordinary

SWAP

Increasing Long

11,751

49.6418 GBP

1p ordinary

SWAP

Increasing Long

3,800

49.6727 GBP

1p ordinary

SWAP

Increasing Long

71,239

49.6771 GBP

1p ordinary

SWAP

Increasing Long

15,588

49.6774 GBP

1p ordinary

SWAP

Increasing Long

1

49.6800 GBP

1p ordinary

SWAP

Increasing Long

349

49.6800 USD

1p ordinary

SWAP

Increasing Long

4,348

49.6804 GBP

1p ordinary

SWAP

Increasing Long

20

49.6825 GBP

1p ordinary

SWAP

Increasing Long

6

49.6833 GBP

1p ordinary

SWAP

Increasing Long

48,682

49.6865 GBP

1p ordinary

SWAP

Increasing Long

403

49.6870 GBP

1p ordinary

SWAP

Increasing Long

126,583

49.6900 GBP

1p ordinary

SWAP

Increasing Long

3,310

49.7235 GBP

1p ordinary

SWAP

Increasing Long

498

49.7239 GBP

1p ordinary

SWAP

Increasing Long

7,653

49.7373 GBP

1p ordinary

SWAP

Increasing Long

5,000

49.7999 GBP

1p ordinary

SWAP

Increasing Long

5

49.8200 GBP

1p ordinary

SWAP

Increasing Long

1

49.8300 GBP

1p ordinary

SWAP

Increasing Long

704

49.8309 GBP

1p ordinary

SWAP

Increasing Long

39

49.8310 GBP

1p ordinary

SWAP

Increasing Long

332

49.8446 GBP

1p ordinary

SWAP

Increasing Long

22,295

49.8513 GBP

1p ordinary

SWAP

Increasing Long

107

49.8899 GBP

1p ordinary

SWAP

Increasing Long

1,709

49.9480 GBP

1p ordinary

SWAP

Increasing Long

886

50.0223 GBP

1p ordinary

SWAP

Increasing Long

158

50.0224 GBP

1p ordinary

SWAP

Increasing Long

73

50.0286 GBP

1p ordinary

SWAP

Increasing Long

44

50.0306 GBP

1p ordinary

SWAP

Increasing Long

6,318

50.0611 GBP

1p ordinary

SWAP

Increasing Long

12

50.1359 GBP

1p ordinary

SWAP

Decreasing Long

4,090

47.9030 GBP

1p ordinary

SWAP

Decreasing Long

76

47.9700 GBP

1p ordinary

SWAP

Decreasing Long

1,363

47.9738 GBP

1p ordinary

SWAP

Decreasing Long

5,094

48.1634 GBP

1p ordinary

SWAP

Decreasing Long

26,329

48.2193 GBP

1p ordinary

SWAP

Decreasing Long

15,781

48.2457 GBP

1p ordinary

SWAP

Decreasing Long

40

48.6300 GBP

1p ordinary

SWAP

Decreasing Long

136,133

48.9600 GBP

1p ordinary

SWAP

Decreasing Long

118

48.9854 GBP

1p ordinary

SWAP

Decreasing Long

106

48.9883 GBP

1p ordinary

SWAP

Decreasing Long

514

49.5275 GBP

1p ordinary

SWAP

Decreasing Long

7,505

49.6424 GBP

1p ordinary

SWAP

Decreasing Long

1,443

49.6758 GBP

1p ordinary

SWAP

Decreasing Long

50,994

49.6900 GBP

1p ordinary

SWAP

Decreasing Long

851

49.6903 GBP

1p ordinary

SWAP

Decreasing Long

14,654

49.6924 GBP

1p ordinary

SWAP

Decreasing Long

6

49.6939 GBP

1p ordinary

SWAP

Decreasing Long

24

49.6949 GBP

1p ordinary

SWAP

Decreasing Long

331

49.7040 GBP

1p ordinary

SWAP

Decreasing Long

471

49.7075 GBP

1p ordinary

SWAP

Decreasing Long

96

49.7127 GBP

1p ordinary

SWAP

Decreasing Long

2,340

49.7215 GBP

1p ordinary

SWAP

Decreasing Long

79

49.7229 GBP

1p ordinary

SWAP

Decreasing Long

380

49.7272 GBP

1p ordinary

SWAP

Decreasing Long

425

49.7294 GBP

1p ordinary

SWAP

Decreasing Long

98

49.7308 GBP

1p ordinary

SWAP

Decreasing Long

25,745

49.7361 GBP

1p ordinary

SWAP

Decreasing Long

265

49.7600 GBP

1p ordinary

SWAP

Decreasing Long

254

49.7617 GBP

1p ordinary

SWAP

Decreasing Long

2,418

49.7657 GBP

1p ordinary

SWAP

Decreasing Long

10,016

49.7755 GBP

1p ordinary

SWAP

Decreasing Long

340

49.7884 GBP

1p ordinary

SWAP

Decreasing Long

337

49.8014 GBP

1p ordinary

SWAP

Decreasing Long

2,005

49.8038 GBP

1p ordinary

SWAP

Decreasing Long

2,270

49.8115 GBP

1p ordinary

SWAP

Decreasing Long

337

49.8173 GBP

1p ordinary

SWAP

Decreasing Long

39

49.8200 GBP

1p ordinary

SWAP

Decreasing Long

358

49.8203 GBP

1p ordinary

SWAP

Decreasing Long

319

49.8517 GBP

1p ordinary

SWAP

Decreasing Long

80

49.8773 GBP

1p ordinary

SWAP

Decreasing Long

297

49.9430 GBP

1p ordinary

SWAP

Decreasing Long

128

50.0400 GBP

1p ordinary

SWAP

Decreasing Long

382

50.2294 GBP

1p ordinary

SWAP

Decreasing Short

281

49.9580 GBP

1p ordinary

CFD

Increasing Long

457

47.9666 GBP

1p ordinary

CFD

Increasing Long

553

49.5254 GBP

1p ordinary

CFD

Increasing Long

14,096

49.8522 GBP

1p ordinary

CFD

Increasing Long

1,567

50.0201 GBP

1p ordinary

CFD

Decreasing Long

682

49.6934 GBP

1p ordinary

CFD

Decreasing Long

5,592

49.7548 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:

20 Apr 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213