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:

06 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:

11,763,563

2.03%

452,741

0.08%

(2)

Cash-settled derivatives:

and/or controlled:

288,207

0.05%

11,504,257

1.99%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

12,051,770

2.08%

11,956,998

2.07%

(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

480,948

1.7577 GBP

3 1/3p ordinary

Purchase

389,464

1.7567 GBP

3 1/3p ordinary

Purchase

232,031

1.7552 GBP

3 1/3p ordinary

Purchase

181,190

1.7555 GBP

3 1/3p ordinary

Purchase

132,716

1.7558 GBP

3 1/3p ordinary

Purchase

76,706

1.7583 GBP

3 1/3p ordinary

Purchase

57,792

1.7547 GBP

3 1/3p ordinary

Purchase

38,178

1.7551 GBP

3 1/3p ordinary

Purchase

26,135

1.7554 GBP

3 1/3p ordinary

Purchase

24,433

1.7499 GBP

3 1/3p ordinary

Purchase

23,060

1.7590 GBP

3 1/3p ordinary

Purchase

18,663

1.7500 GBP

3 1/3p ordinary

Purchase

16,693

1.7559 GBP

3 1/3p ordinary

Purchase

16,586

1.7543 GBP

3 1/3p ordinary

Purchase

11,906

1.7522 GBP

3 1/3p ordinary

Purchase

10,308

1.7600 GBP

3 1/3p ordinary

Purchase

9,881

1.7548 GBP

3 1/3p ordinary

Purchase

6,010

1.7564 GBP

3 1/3p ordinary

Purchase

5,160

1.7550 GBP

3 1/3p ordinary

Purchase

2,846

1.7557 GBP

3 1/3p ordinary

Purchase

2,189

1.7650 GBP

3 1/3p ordinary

Purchase

1,983

1.7570 GBP

3 1/3p ordinary

Purchase

1,619

1.7560 GBP

3 1/3p ordinary

Purchase

1,463

1.7530 GBP

3 1/3p ordinary

Purchase

1,419

1.7609 GBP

3 1/3p ordinary

Purchase

146

1.7498 GBP

3 1/3p ordinary

Purchase

22

1.7580 GBP

3 1/3p ordinary

Sale

450,861

1.7554 GBP

3 1/3p ordinary

Sale

215,780

1.7555 GBP

3 1/3p ordinary

Sale

209,803

1.7568 GBP

3 1/3p ordinary

Sale

77,003

1.7537 GBP

3 1/3p ordinary

Sale

65,521

1.7503 GBP

3 1/3p ordinary

Sale

54,537

1.7550 GBP

3 1/3p ordinary

Sale

35,562

1.7529 GBP

3 1/3p ordinary

Sale

22,366

1.7500 GBP

3 1/3p ordinary

Sale

13,757

1.7559 GBP

3 1/3p ordinary

Sale

8,881

1.7560 GBP

3 1/3p ordinary

Sale

6,835

1.7572 GBP

3 1/3p ordinary

Sale

5,947

1.7530 GBP

3 1/3p ordinary

Sale

5,080

1.7610 GBP

3 1/3p ordinary

Sale

4,535

1.7542 GBP

3 1/3p ordinary

Sale

2,148

1.7540 GBP

3 1/3p ordinary

Sale

1,983

1.7570 GBP

3 1/3p ordinary

Sale

1,840

1.7591 GBP

3 1/3p ordinary

Sale

1,803

1.7600 GBP

3 1/3p ordinary

Sale

1,624

1.7558 GBP

3 1/3p ordinary

Sale

1,375

1.7590 GBP

3 1/3p ordinary

Sale

1,365

1.7602 GBP

3 1/3p ordinary

Sale

1,330

1.7580 GBP

3 1/3p ordinary

Sale

1,300

1.7648 GBP

3 1/3p ordinary

Sale

162

1.7575 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

Closing Long

20,330

1.7590 GBP

3 1/3p ordinary

SWAP

Closing Long

480,948

1.7577 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,300

1.7648 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,365

1.7602 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,502

1.7500 GBP

3 1/3p ordinary

CFD

Decreasing Short

2,189

1.7500 GBP

3 1/3p ordinary

SWAP

Decreasing Short

3,837

1.7610 GBP

3 1/3p ordinary

CFD

Decreasing Short

5,130

1.7575 GBP

3 1/3p ordinary

SWAP

Decreasing Short

6,835

1.7572 GBP

3 1/3p ordinary

CFD

Decreasing Short

8,928

1.7659 GBP

3 1/3p ordinary

SWAP

Decreasing Short

10,596

1.7571 GBP

3 1/3p ordinary

SWAP

Decreasing Short

26,620

1.7560 GBP

3 1/3p ordinary

SWAP

Decreasing Short

46,240

1.7500 GBP

3 1/3p ordinary

SWAP

Decreasing Short

215,780

1.7555 GBP

3 1/3p ordinary

SWAP

Decreasing Short

433,222

1.7554 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,369

1.7590 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,413

1.7560 GBP

3 1/3p ordinary

CFD

Increasing Short

2,189

1.7650 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,335

1.7548 GBP

3 1/3p ordinary

SWAP

Increasing Short

5,160

1.7550 GBP

3 1/3p ordinary

SWAP

Increasing Short

11,906

1.7522 GBP

3 1/3p ordinary

SWAP

Increasing Short

76,706

1.7583 GBP

3 1/3p ordinary

SWAP

Increasing Short

374,766

1.7559 GBP

3 1/3p ordinary

SWAP

Increasing Short

437,870

1.7555 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:

07 Mar 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213