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:

14 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:

44,426,085

7.68%

1,027,643

0.18%

(2)

Cash-settled derivatives:

and/or controlled:

721,095

0.12%

44,271,944

7.65%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

45,147,180

7.80%

45,299,587

7.83%

(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

62,089

1.7421 GBP

3 1/3p ordinary

Purchase

16,541

1.7335 GBP

3 1/3p ordinary

Purchase

12,607

1.7420 GBP

3 1/3p ordinary

Purchase

10,210

1.7387 GBP

3 1/3p ordinary

Purchase

9,652

1.7359 GBP

3 1/3p ordinary

Purchase

9,132

1.7343 GBP

3 1/3p ordinary

Purchase

7,214

1.7340 GBP

3 1/3p ordinary

Purchase

5,718

1.7366 GBP

3 1/3p ordinary

Purchase

3,644

1.7350 GBP

3 1/3p ordinary

Purchase

2,435

1.7336 GBP

3 1/3p ordinary

Purchase

2,402

1.7401 GBP

3 1/3p ordinary

Purchase

1,260

1.7360 GBP

3 1/3p ordinary

Purchase

681

1.7399 GBP

3 1/3p ordinary

Purchase

472

1.7403 GBP

3 1/3p ordinary

Purchase

6

1.7380 GBP

3 1/3p ordinary

Sale

34,332

1.7378 GBP

3 1/3p ordinary

Sale

31,685

1.7420 GBP

3 1/3p ordinary

Sale

14,376

1.7418 GBP

3 1/3p ordinary

Sale

4,804

1.7401 GBP

3 1/3p ordinary

Sale

3,100

1.7341 GBP

3 1/3p ordinary

Sale

2,836

1.7380 GBP

3 1/3p ordinary

Sale

2,167

1.7330 GBP

3 1/3p ordinary

Sale

1,711

1.7369 GBP

3 1/3p ordinary

Sale

1,459

1.7363 GBP

3 1/3p ordinary

Sale

1,023

1.7399 GBP

3 1/3p ordinary

Sale

761

1.7408 GBP

3 1/3p ordinary

Sale

402

1.7340 GBP

3 1/3p ordinary

Sale

366

1.7395 GBP

3 1/3p ordinary

Sale

223

1.7333 GBP

3 1/3p ordinary

Sale

6

1.7381 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

2

1.7300 GBP

3 1/3p ordinary

SWAP

Decreasing Short

402

1.7340 GBP

3 1/3p ordinary

SWAP

Decreasing Short

244

1.7349 GBP

3 1/3p ordinary

SWAP

Decreasing Short

18,319

1.7367 GBP

3 1/3p ordinary

SWAP

Decreasing Short

238

1.7369 GBP

3 1/3p ordinary

SWAP

Decreasing Short

719

1.7370 GBP

3 1/3p ordinary

SWAP

Decreasing Short

18,036

1.7373 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,184

1.7378 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,023

1.7399 GBP

3 1/3p ordinary

SWAP

Decreasing Short

4,804

1.7401 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,489

1.7419 GBP

3 1/3p ordinary

SWAP

Decreasing Short

32,243

1.7420 GBP

3 1/3p ordinary

SWAP

Increasing Short

16,541

1.7335 GBP

3 1/3p ordinary

SWAP

Increasing Short

336

1.7343 GBP

3 1/3p ordinary

SWAP

Increasing Short

7,744

1.7344 GBP

3 1/3p ordinary

SWAP

Increasing Short

4,374

1.7347 GBP

3 1/3p ordinary

SWAP

Increasing Short

14,095

1.7350 GBP

3 1/3p ordinary

SWAP

Increasing Short

782

1.7354 GBP

3 1/3p ordinary

SWAP

Increasing Short

4

1.7372 GBP

3 1/3p ordinary

SWAP

Increasing Short

10,210

1.7387 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,418

1.7418 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,869

1.7420 GBP

3 1/3p ordinary

SWAP

Increasing Short

62,089

1.7421 GBP

3 1/3p ordinary

CFD

Increasing Short

53

1.7322 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:

15 Jan 2025

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213