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:

07 Jan 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:

44,779,441

7.74%

1,093,833

0.19%

(2)

Cash-settled derivatives:

and/or controlled:

787,649

0.14%

44,615,680

7.71%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

45,567,090

7.87%

45,709,513

7.90%

(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

236,818

1.7309 GBP

3 1/3p ordinary

Purchase

39,051

1.7326 GBP

3 1/3p ordinary

Purchase

24,594

1.7323 GBP

3 1/3p ordinary

Purchase

16,735

1.7314 GBP

3 1/3p ordinary

Purchase

13,728

1.7300 GBP

3 1/3p ordinary

Purchase

11,370

1.7241 GBP

3 1/3p ordinary

Purchase

5,745

1.7294 GBP

3 1/3p ordinary

Purchase

3,119

1.7337 GBP

3 1/3p ordinary

Purchase

2,723

1.7304 GBP

3 1/3p ordinary

Purchase

2,681

1.7292 GBP

3 1/3p ordinary

Purchase

1,342

1.7303 GBP

3 1/3p ordinary

Purchase

1,000

1.7330 GBP

3 1/3p ordinary

Purchase

1,000

1.7328 GBP

3 1/3p ordinary

Purchase

926

1.7295 GBP

3 1/3p ordinary

Purchase

762

1.7351 GBP

3 1/3p ordinary

Purchase

741

1.7438 GBP

3 1/3p ordinary

Purchase

684

1.7230 GBP

3 1/3p ordinary

Purchase

559

1.7256 GBP

3 1/3p ordinary

Purchase

503

1.7343 GBP

3 1/3p ordinary

Purchase

398

1.7240 GBP

3 1/3p ordinary

Purchase

302

1.7315 GBP

3 1/3p ordinary

Purchase

194

1.7320 GBP

3 1/3p ordinary

Purchase

132

1.7210 GBP

3 1/3p ordinary

Purchase

38

1.7390 GBP

3 1/3p ordinary

Sale

64,525

1.7301 GBP

3 1/3p ordinary

Sale

58,065

1.7292 GBP

3 1/3p ordinary

Sale

29,302

1.7299 GBP

3 1/3p ordinary

Sale

18,083

1.7300 GBP

3 1/3p ordinary

Sale

13,586

1.7288 GBP

3 1/3p ordinary

Sale

10,407

1.7296 GBP

3 1/3p ordinary

Sale

9,815

1.7289 GBP

3 1/3p ordinary

Sale

9,790

1.7294 GBP

3 1/3p ordinary

Sale

6,810

1.7290 GBP

3 1/3p ordinary

Sale

5,607

1.7280 GBP

3 1/3p ordinary

Sale

4,351

1.7313 GBP

3 1/3p ordinary

Sale

2,760

1.7291 GBP

3 1/3p ordinary

Sale

2,600

1.7305 GBP

3 1/3p ordinary

Sale

1,000

1.7330 GBP

3 1/3p ordinary

Sale

398

1.7240 GBP

3 1/3p ordinary

Sale

351

1.7235 GBP

3 1/3p ordinary

Sale

20

1.7312 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

57,979

1.7288 GBP

3 1/3p ordinary

SWAP

Decreasing Short

6,859

1.7289 GBP

3 1/3p ordinary

SWAP

Decreasing Short

808

1.7290 GBP

3 1/3p ordinary

SWAP

Decreasing Short

44,896

1.7295 GBP

3 1/3p ordinary

SWAP

Decreasing Short

21,597

1.7299 GBP

3 1/3p ordinary

SWAP

Decreasing Short

17,651

1.7300 GBP

3 1/3p ordinary

SWAP

Decreasing Short

64,525

1.7301 GBP

3 1/3p ordinary

SWAP

Decreasing Short

260

1.7314 GBP

3 1/3p ordinary

SWAP

Increasing Short

453

1.7235 GBP

3 1/3p ordinary

SWAP

Increasing Short

11,370

1.7241 GBP

3 1/3p ordinary

SWAP

Increasing Short

5

1.7280 GBP

3 1/3p ordinary

SWAP

Increasing Short

2

1.7290 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,681

1.7291 GBP

3 1/3p ordinary

SWAP

Increasing Short

7,100

1.7298 GBP

3 1/3p ordinary

SWAP

Increasing Short

19,831

1.7300 GBP

3 1/3p ordinary

SWAP

Increasing Short

200,000

1.7308 GBP

3 1/3p ordinary

SWAP

Increasing Short

313

1.7309 GBP

3 1/3p ordinary

SWAP

Increasing Short

144

1.7310 GBP

3 1/3p ordinary

SWAP

Increasing Short

16,735

1.7314 GBP

3 1/3p ordinary

SWAP

Increasing Short

9,874

1.7315 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,002

1.7317 GBP

3 1/3p ordinary

SWAP

Increasing Short

24,740

1.7323 GBP

3 1/3p ordinary

SWAP

Increasing Short

39,051

1.7326 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,878

1.7349 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,247

1.7358 GBP

3 1/3p ordinary

SWAP

Increasing Short

38

1.7391 GBP

3 1/3p ordinary

CFD

Increasing Short

1,488

1.7312 GBP

3 1/3p ordinary

CFD

Increasing Short

1,392

1.7431 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:

08 Jan 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213