Form 8.3 SPIRENT COMMUNICATIONS 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

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:

03 Feb 2025

(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:

44,607,670

7.71%

786,839

0.14%

(2)

Cash-settled derivatives:

and/or controlled:

455,519

0.08%

44,177,582

7.63%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

45,063,189

7.79%

44,964,421

7.77%

(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

53,186

1.8500 GBP

3 1/3p ordinary

Purchase

52,164

1.8388 GBP

3 1/3p ordinary

Purchase

25,171

1.8391 GBP

3 1/3p ordinary

Purchase

22,398

1.8404 GBP

3 1/3p ordinary

Purchase

21,525

1.8413 GBP

3 1/3p ordinary

Purchase

11,301

1.8446 GBP

3 1/3p ordinary

Purchase

9,985

1.8350 GBP

3 1/3p ordinary

Purchase

8,598

1.8364 GBP

3 1/3p ordinary

Purchase

3,984

1.8336 GBP

3 1/3p ordinary

Purchase

3,416

1.8394 GBP

3 1/3p ordinary

Purchase

2,688

1.8360 GBP

3 1/3p ordinary

Purchase

2,653

1.8455 GBP

3 1/3p ordinary

Purchase

2,511

1.8339 GBP

3 1/3p ordinary

Purchase

2,208

1.8369 GBP

3 1/3p ordinary

Purchase

1,492

1.8418 GBP

3 1/3p ordinary

Purchase

1,203

1.8358 GBP

3 1/3p ordinary

Purchase

1,146

1.8503 GBP

3 1/3p ordinary

Purchase

862

1.8377 GBP

3 1/3p ordinary

Purchase

848

1.8409 GBP

3 1/3p ordinary

Purchase

677

1.8341 GBP

3 1/3p ordinary

Purchase

600

1.8490 GBP

3 1/3p ordinary

Purchase

546

1.8520 GBP

3 1/3p ordinary

Purchase

504

1.8493 GBP

3 1/3p ordinary

Purchase

444

1.8340 GBP

3 1/3p ordinary

Purchase

413

1.8420 GBP

3 1/3p ordinary

Purchase

399

1.8410 GBP

3 1/3p ordinary

Purchase

256

1.8320 GBP

3 1/3p ordinary

Purchase

192

1.8425 GBP

3 1/3p ordinary

Purchase

144

1.8460 GBP

3 1/3p ordinary

Sale

71,457

1.8457 GBP

3 1/3p ordinary

Sale

25,494

1.8500 GBP

3 1/3p ordinary

Sale

23,266

1.8419 GBP

3 1/3p ordinary

Sale

10,340

1.8362 GBP

3 1/3p ordinary

Sale

8,372

1.8351 GBP

3 1/3p ordinary

Sale

7,160

1.8454 GBP

3 1/3p ordinary

Sale

5,859

1.8424 GBP

3 1/3p ordinary

Sale

5,271

1.8347 GBP

3 1/3p ordinary

Sale

4,278

1.8316 GBP

3 1/3p ordinary

Sale

4,005

1.8464 GBP

3 1/3p ordinary

Sale

3,579

1.8368 GBP

3 1/3p ordinary

Sale

3,240

1.8436 GBP

3 1/3p ordinary

Sale

1,759

1.8438 GBP

3 1/3p ordinary

Sale

1,638

1.8363 GBP

3 1/3p ordinary

Sale

1,460

1.8420 GBP

3 1/3p ordinary

Sale

1,226

1.8366 GBP

3 1/3p ordinary

Sale

832

1.8247 GBP

3 1/3p ordinary

Sale

724

1.8455 GBP

3 1/3p ordinary

Sale

677

1.8343 GBP

3 1/3p ordinary

Sale

622

1.8400 GBP

3 1/3p ordinary

Sale

600

1.8490 GBP

3 1/3p ordinary

Sale

546

1.8520 GBP

3 1/3p ordinary

Sale

527

1.8365 GBP

3 1/3p ordinary

Sale

399

1.8410 GBP

3 1/3p ordinary

Sale

387

1.8320 GBP

3 1/3p ordinary

Sale

240

1.8452 GBP

3 1/3p ordinary

Sale

236

1.8321 GBP

3 1/3p ordinary

Sale

144

1.8460 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

Decreasing Short

832

1.8247 GBP

3 1/3p ordinary

SWAP

Decreasing Short

4,278

1.8316 GBP

3 1/3p ordinary

SWAP

Decreasing Short

8,372

1.8351 GBP

3 1/3p ordinary

SWAP

Decreasing Short

185

1.8399 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,082

1.8414 GBP

3 1/3p ordinary

SWAP

Decreasing Short

58,325

1.8440 GBP

3 1/3p ordinary

SWAP

Decreasing Short

56,038

1.8446 GBP

3 1/3p ordinary

SWAP

Decreasing Short

7,160

1.8454 GBP

3 1/3p ordinary

SWAP

Decreasing Short

4,005

1.8464 GBP

3 1/3p ordinary

SWAP

Decreasing Short

128

1.8499 GBP

3 1/3p ordinary

SWAP

Decreasing Short

255

1.8500 GBP

3 1/3p ordinary

SWAP

Increasing Short

490

1.8330 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,511

1.8340 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,727

1.8342 GBP

3 1/3p ordinary

SWAP

Increasing Short

533

1.8345 GBP

3 1/3p ordinary

SWAP

Increasing Short

9,985

1.8350 GBP

3 1/3p ordinary

SWAP

Increasing Short

8,598

1.8364 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,208

1.8369 GBP

3 1/3p ordinary

SWAP

Increasing Short

49,781

1.8383 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,055

1.8387 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,929

1.8389 GBP

3 1/3p ordinary

SWAP

Increasing Short

25,171

1.8391 GBP

3 1/3p ordinary

SWAP

Increasing Short

2

1.8400 GBP

3 1/3p ordinary

SWAP

Increasing Short

1

1.8440 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,698

1.8442 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,957

1.8445 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,580

1.8455 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,383

1.8498 GBP

3 1/3p ordinary

SWAP

Increasing Short

41,328

1.8500 GBP

3 1/3p ordinary

CFD

Increasing Short

5,474

1.8351 GBP

3 1/3p ordinary

CFD

Increasing Short

9,075

1.8416 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:

04 Feb 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213