Spirent Regulatory News (SPT)

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

SPIRENT COMMUNICATIONS 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:

05 Mar 2024

(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:

3 1/3p ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

11,729,519

2.03%

996,846

0.17%

(2)

Cash-settled derivatives:

and/or controlled:

789,485

0.14%

11,354,087

1.96%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

12,519,004

2.16%

12,350,933

2.13%

(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 EXEMPT PRINCIPAL TRADER

(a)

Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

3 1/3p ordinary

Purchase

2,000,000

1.7208 GBP

3 1/3p ordinary

Purchase

2,000,000

1.7608 GBP

3 1/3p ordinary

Purchase

1,376,751

1.7491 GBP

3 1/3p ordinary

Purchase

1,000,000

1.7008 GBP

3 1/3p ordinary

Purchase

400,000

1.7213 GBP

3 1/3p ordinary

Purchase

390,207

1.7405 GBP

3 1/3p ordinary

Purchase

389,430

1.7516 GBP

3 1/3p ordinary

Purchase

309,611

1.7412 GBP

3 1/3p ordinary

Purchase

291,893

1.7406 GBP

3 1/3p ordinary

Purchase

250,000

1.7308 GBP

3 1/3p ordinary

Purchase

213,467

1.7418 GBP

3 1/3p ordinary

Purchase

178,368

1.7260 GBP

3 1/3p ordinary

Purchase

176,051

1.7700 GBP

3 1/3p ordinary

Purchase

166,361

1.7447 GBP

3 1/3p ordinary

Purchase

156,281

1.7236 GBP

3 1/3p ordinary

Purchase

145,854

1.7270 GBP

3 1/3p ordinary

Purchase

73,012

1.7521 GBP

3 1/3p ordinary

Purchase

41,847

1.7234 GBP

3 1/3p ordinary

Purchase

33,737

1.7524 GBP

3 1/3p ordinary

Purchase

33,325

1.7699 GBP

3 1/3p ordinary

Purchase

28,197

1.7579 GBP

3 1/3p ordinary

Purchase

26,217

1.7559 GBP

3 1/3p ordinary

Purchase

21,857

1.7543 GBP

3 1/3p ordinary

Purchase

21,631

1.7414 GBP

3 1/3p ordinary

Purchase

20,474

1.7382 GBP

3 1/3p ordinary

Purchase

17,634

1.7581 GBP

3 1/3p ordinary

Purchase

16,492

1.7424 GBP

3 1/3p ordinary

Purchase

16,066

1.7600 GBP

3 1/3p ordinary

Purchase

11,454

1.7508 GBP

3 1/3p ordinary

Purchase

9,763

1.7536 GBP

3 1/3p ordinary

Purchase

9,118

1.7303 GBP

3 1/3p ordinary

Purchase

7,489

1.7517 GBP

3 1/3p ordinary

Purchase

6,719

1.7577 GBP

3 1/3p ordinary

Purchase

5,058

1.7610 GBP

3 1/3p ordinary

Purchase

4,894

1.7585 GBP

3 1/3p ordinary

Purchase

3,891

1.7266 GBP

3 1/3p ordinary

Purchase

2,886

1.7650 GBP

3 1/3p ordinary

Purchase

2,143

1.7433 GBP

3 1/3p ordinary

Purchase

1,747

1.7080 GBP

3 1/3p ordinary

Purchase

1,614

1.7584 GBP

3 1/3p ordinary

Purchase

1,429

1.7212 GBP

3 1/3p ordinary

Purchase

1,389

1.7245 GBP

3 1/3p ordinary

Purchase

1,375

1.7170 GBP

3 1/3p ordinary

Purchase

1,285

1.7620 GBP

3 1/3p ordinary

Purchase

1,264

1.7230 GBP

3 1/3p ordinary

Purchase

1,033

1.7466 GBP

3 1/3p ordinary

Purchase

970

1.7591 GBP

3 1/3p ordinary

Purchase

701

1.7580 GBP

3 1/3p ordinary

Purchase

572

1.7280 GBP

3 1/3p ordinary

Purchase

463

1.7570 GBP

3 1/3p ordinary

Purchase

67

1.7320 GBP

3 1/3p ordinary

Sale

869,758

1.6991 GBP

3 1/3p ordinary

Sale

551,359

1.7291 GBP

3 1/3p ordinary

Sale

500,000

1.7391 GBP

3 1/3p ordinary

Sale

485,281

1.7477 GBP

3 1/3p ordinary

Sale

436,500

1.7499 GBP

3 1/3p ordinary

Sale

287,824

1.7407 GBP

3 1/3p ordinary

Sale

252,591

1.7599 GBP

3 1/3p ordinary

Sale

247,211

1.7241 GBP

3 1/3p ordinary

Sale

232,909

1.7393 GBP

3 1/3p ordinary

Sale

215,115

1.7378 GBP

3 1/3p ordinary

Sale

182,945

1.7371 GBP

3 1/3p ordinary

Sale

137,907

1.7613 GBP

3 1/3p ordinary

Sale

136,334

1.7431 GBP

3 1/3p ordinary

Sale

120,880

1.7339 GBP

3 1/3p ordinary

Sale

117,493

1.7465 GBP

3 1/3p ordinary

Sale

110,910

1.7673 GBP

3 1/3p ordinary

Sale

110,342

1.7231 GBP

3 1/3p ordinary

Sale

106,029

1.7386 GBP

3 1/3p ordinary

Sale

54,556

1.7270 GBP

3 1/3p ordinary

Sale

52,697

1.7310 GBP

3 1/3p ordinary

Sale

51,016

1.7700 GBP

3 1/3p ordinary

Sale

44,419

1.7240 GBP

3 1/3p ordinary

Sale

34,481

1.7217 GBP

3 1/3p ordinary

Sale

33,491

1.7580 GBP

3 1/3p ordinary

Sale

32,546

1.7610 GBP

3 1/3p ordinary

Sale

28,689

1.7357 GBP

3 1/3p ordinary

Sale

13,347

1.7239 GBP

3 1/3p ordinary

Sale

12,367

1.7355 GBP

3 1/3p ordinary

Sale

9,839

1.7635 GBP

3 1/3p ordinary

Sale

9,673

1.7600 GBP

3 1/3p ordinary

Sale

8,368

1.7145 GBP

3 1/3p ordinary

Sale

7,500

1.7135 GBP

3 1/3p ordinary

Sale

7,001

1.7638 GBP

3 1/3p ordinary

Sale

5,340

1.7225 GBP

3 1/3p ordinary

Sale

4,525

1.7612 GBP

3 1/3p ordinary

Sale

3,005

1.7230 GBP

3 1/3p ordinary

Sale

2,886

1.7650 GBP

3 1/3p ordinary

Sale

1,747

1.7080 GBP

3 1/3p ordinary

Sale

1,549

1.7603 GBP

3 1/3p ordinary

Sale

1,375

1.7170 GBP

3 1/3p ordinary

Sale

1,285

1.7620 GBP

3 1/3p ordinary

Sale

1,159

1.7496 GBP

3 1/3p ordinary

Sale

813

1.7615 GBP

3 1/3p ordinary

Sale

643

1.7631 GBP

3 1/3p ordinary

Sale

490

1.7570 GBP

3 1/3p ordinary

Sale

142

1.7571 GBP

3 1/3p ordinary

Sale

82

1.7260 GBP

3 1/3p ordinary

Sale

67

1.7320 GBP

(b)

Cash-settled derivative transactions

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

3 1/3p ordinary

SWAP

Opening Long

643

1.7631 GBP

3 1/3p ordinary

SWAP

Opening Long

813

1.7615 GBP

3 1/3p ordinary

SWAP

Opening Long

5,092

1.7372 GBP

3 1/3p ordinary

SWAP

Opening Long

5,888

1.7407 GBP

3 1/3p ordinary

SWAP

Opening Long

137,907

1.7613 GBP

3 1/3p ordinary

SWAP

Opening Long

232,909

1.7393 GBP

3 1/3p ordinary

SWAP

Opening Long

247,211

1.7241 GBP

3 1/3p ordinary

SWAP

Opening Long

301,359

1.7291 GBP

3 1/3p ordinary

SWAP

Opening Long

869,758

1.6991 GBP

3 1/3p ordinary

SWAP

Opening Short

117

1.7590 GBP

3 1/3p ordinary

SWAP

Opening Short

140

1.7569 GBP

3 1/3p ordinary

SWAP

Opening Short

154

1.7570 GBP

3 1/3p ordinary

SWAP

Opening Short

234

1.7590 GBP

3 1/3p ordinary

SWAP

Opening Short

572

1.7280 GBP

3 1/3p ordinary

SWAP

Opening Short

652

1.7505 GBP

3 1/3p ordinary

SWAP

Opening Short

970

1.7591 GBP

3 1/3p ordinary

CFD

Opening Short

1,200

1.7601 GBP

3 1/3p ordinary

CFD

Opening Short

1,203

1.7232 GBP

3 1/3p ordinary

SWAP

Opening Short

1,227

1.7629 GBP

3 1/3p ordinary

SWAP

Opening Short

1,389

1.7245 GBP

3 1/3p ordinary

SWAP

Opening Short

1,614

1.7584 GBP

3 1/3p ordinary

CFD

Opening Short

2,143

1.7433 GBP

3 1/3p ordinary

SWAP

Opening Short

2,591

1.7599 GBP

3 1/3p ordinary

SWAP

Opening Short

2,930

1.7398 GBP

3 1/3p ordinary

SWAP

Opening Short

3,632

1.7510 GBP

3 1/3p ordinary

SWAP

Opening Short

4,296

1.7285 GBP

3 1/3p ordinary

SWAP

Opening Short

4,894

1.7585 GBP

3 1/3p ordinary

SWAP

Opening Short

5,043

1.7242 GBP

3 1/3p ordinary

SWAP

Opening Short

5,916

1.7405 GBP

3 1/3p ordinary

SWAP

Opening Short

6,719

1.7577 GBP

3 1/3p ordinary

SWAP

Opening Short

11,454

1.7508 GBP

3 1/3p ordinary

SWAP

Opening Short

12,367

1.7355 GBP

3 1/3p ordinary

CFD

Opening Short

13,347

1.7239 GBP

3 1/3p ordinary

SWAP

Opening Short

16,765

1.7595 GBP

3 1/3p ordinary

SWAP

Opening Short

17,019

1.7398 GBP

3 1/3p ordinary

SWAP

Opening Short

17,634

1.7581 GBP

3 1/3p ordinary

SWAP

Opening Short

17,999

1.7395 GBP

3 1/3p ordinary

SWAP

Opening Short

20,474

1.7382 GBP

3 1/3p ordinary

SWAP

Opening Short

25,857

1.7475 GBP

3 1/3p ordinary

SWAP

Opening Short

28,197

1.7579 GBP

3 1/3p ordinary

CFD

Opening Short

32,620

1.7698 GBP

3 1/3p ordinary

SWAP

Opening Short

33,737

1.7524 GBP

3 1/3p ordinary

SWAP

Opening Short

39,069

1.7220 GBP

3 1/3p ordinary

CFD

Opening Short

47,888

1.7700 GBP

3 1/3p ordinary

SWAP

Opening Short

52,200

1.7270 GBP

3 1/3p ordinary

SWAP

Opening Short

59,939

1.7542 GBP

3 1/3p ordinary

SWAP

Opening Short

86,997

1.7700 GBP

3 1/3p ordinary

SWAP

Opening Short

109,447

1.7447 GBP

3 1/3p ordinary

SWAP

Opening Short

117,493

1.7465 GBP

3 1/3p ordinary

SWAP

Opening Short

121,779

1.7284 GBP

3 1/3p ordinary

CFD

Opening Short

145,854

1.7270 GBP

3 1/3p ordinary

SWAP

Opening Short

156,281

1.7236 GBP

3 1/3p ordinary

SWAP

Opening Short

250,000

1.7291 GBP

3 1/3p ordinary

SWAP

Opening Short

250,000

1.7308 GBP

3 1/3p ordinary

SWAP

Opening Short

250,000

1.7498 GBP

3 1/3p ordinary

SWAP

Opening Short

250,000

1.7205 GBP

3 1/3p ordinary

SWAP

Opening Short

250,000

1.7501 GBP

3 1/3p ordinary

SWAP

Opening Short

282,074

1.7303 GBP

3 1/3p ordinary

SWAP

Opening Short

400,000

1.7213 GBP

3 1/3p ordinary

SWAP

Opening Short

419,372

1.7453 GBP

3 1/3p ordinary

SWAP

Opening Short

485,281

1.7478 GBP

3 1/3p ordinary

SWAP

Opening Short

500,000

1.7391 GBP

3 1/3p ordinary

SWAP

Opening Short

750,000

1.7401 GBP

3 1/3p ordinary

SWAP

Opening Short

955,205

1.7441 GBP

3 1/3p ordinary

SWAP

Opening Short

1,000,000

1.7008 GBP

3 1/3p ordinary

SWAP

Opening Short

2,000,000

1.7208 GBP

3 1/3p ordinary

SWAP

Opening Short

2,000,000

1.7608 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)

Exercising

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:

06 Mar 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213