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:

29 Jul 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:

21,176,041

3.66%

1,157,881

0.20%

(2)

Cash-settled derivatives:

and/or controlled:

844,799

0.15%

20,777,178

3.59%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

22,020,840

3.81%

21,935,059

3.79%

(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

155,249

1.7555 GBP

3 1/3p ordinary

Purchase

37,549

1.7660 GBP

3 1/3p ordinary

Purchase

34,989

1.7571 GBP

3 1/3p ordinary

Purchase

31,498

1.7659 GBP

3 1/3p ordinary

Purchase

29,195

1.7579 GBP

3 1/3p ordinary

Purchase

18,425

1.7557 GBP

3 1/3p ordinary

Purchase

13,801

1.7558 GBP

3 1/3p ordinary

Purchase

11,890

1.7551 GBP

3 1/3p ordinary

Purchase

8,347

1.7562 GBP

3 1/3p ordinary

Purchase

4,615

1.7580 GBP

3 1/3p ordinary

Purchase

4,542

1.7631 GBP

3 1/3p ordinary

Purchase

3,132

1.7585 GBP

3 1/3p ordinary

Purchase

1,654

1.7540 GBP

3 1/3p ordinary

Purchase

1,554

1.7550 GBP

3 1/3p ordinary

Purchase

703

1.7582 GBP

3 1/3p ordinary

Purchase

398

1.7570 GBP

3 1/3p ordinary

Purchase

355

1.7560 GBP

3 1/3p ordinary

Sale

102,641

1.7391 GBP

3 1/3p ordinary

Sale

67,267

1.7623 GBP

3 1/3p ordinary

Sale

25,989

1.7578 GBP

3 1/3p ordinary

Sale

22,720

1.7574 GBP

3 1/3p ordinary

Sale

20,737

1.7638 GBP

3 1/3p ordinary

Sale

11,384

1.7566 GBP

3 1/3p ordinary

Sale

9,946

1.7580 GBP

3 1/3p ordinary

Sale

9,760

1.7575 GBP

3 1/3p ordinary

Sale

4,693

1.7660 GBP

3 1/3p ordinary

Sale

4,615

1.7581 GBP

3 1/3p ordinary

Sale

4,463

1.7585 GBP

3 1/3p ordinary

Sale

2,872

1.7576 GBP

3 1/3p ordinary

Sale

2,800

1.7559 GBP

3 1/3p ordinary

Sale

1,333

1.7565 GBP

3 1/3p ordinary

Sale

19

1.7540 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 Short

7,750

1.7598 GBP

3 1/3p ordinary

SWAP

Increasing Short

64,894

1.7564 GBP

3 1/3p ordinary

CFD

Decreasing Short

1,206

1.7538 GBP

3 1/3p ordinary

CFD

Decreasing Short

181

1.7549 GBP

3 1/3p ordinary

CFD

Increasing Short

37,549

1.7660 GBP

3 1/3p ordinary

SWAP

Increasing Short

20,045

1.7561 GBP

3 1/3p ordinary

SWAP

Decreasing Short

3,660

1.7580 GBP

3 1/3p ordinary

SWAP

Increasing Short

22,230

1.7634 GBP

3 1/3p ordinary

SWAP

Increasing Short

232

1.7590 GBP

3 1/3p ordinary

SWAP

Decreasing Short

100,789

1.7391 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,852

1.7391 GBP

3 1/3p ordinary

SWAP

Increasing Short

37,455

1.7566 GBP

3 1/3p ordinary

SWAP

Decreasing Short

11,384

1.7566 GBP

3 1/3p ordinary

SWAP

Decreasing Short

5,728

1.7660 GBP

3 1/3p ordinary

SWAP

Increasing Short

16,811

1.7400 GBP

3 1/3p ordinary

SWAP

Increasing Short

30,746

1.7555 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,776

1.7563 GBP

3 1/3p ordinary

SWAP

Increasing Short

29,195

1.7579 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,405

1.7559 GBP

3 1/3p ordinary

SWAP

Increasing Short

7,138

1.7562 GBP

3 1/3p ordinary

SWAP

Increasing Long

23,800

1.7563 GBP

3 1/3p ordinary

SWAP

Increasing Long

34,800

1.7583 GBP

3 1/3p ordinary

SWAP

Increasing Long

28,400

1.7594 GBP

3 1/3p ordinary

SWAP

Decreasing Short

9,981

1.7660 GBP

3 1/3p ordinary

SWAP

Increasing Short

11,890

1.7551 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,015

1.7554 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:

30 Jul 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213