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:

29 Apr 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:

15,934,444

2.75%

5,418,828

0.94%

(2)

Cash-settled derivatives:

and/or controlled:

578,638

0.10%

15,604,448

2.70%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

16,513,082

2.85%

21,023,276

3.63%

(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

51,929

1.9554 GBP

3 1/3p ordinary

Purchase

47,123

1.9609 GBP

3 1/3p ordinary

Purchase

36,195

1.9537 GBP

3 1/3p ordinary

Purchase

17,275

1.9480 GBP

3 1/3p ordinary

Purchase

9,129

1.9543 GBP

3 1/3p ordinary

Purchase

9,123

1.9515 GBP

3 1/3p ordinary

Purchase

3,125

1.9469 GBP

3 1/3p ordinary

Purchase

3,017

1.9489 GBP

3 1/3p ordinary

Purchase

2,808

1.9486 GBP

3 1/3p ordinary

Purchase

2,522

1.9510 GBP

3 1/3p ordinary

Purchase

2,038

1.9500 GBP

3 1/3p ordinary

Purchase

800

1.9490 GBP

3 1/3p ordinary

Purchase

271

1.9610 GBP

3 1/3p ordinary

Sale

41,155

1.9610 GBP

3 1/3p ordinary

Sale

36,706

1.9549 GBP

3 1/3p ordinary

Sale

24,848

1.9579 GBP

3 1/3p ordinary

Sale

23,027

1.9481 GBP

3 1/3p ordinary

Sale

6,997

1.9487 GBP

3 1/3p ordinary

Sale

6,589

1.9466 GBP

3 1/3p ordinary

Sale

3,579

1.9495 GBP

3 1/3p ordinary

Sale

1,661

1.9503 GBP

3 1/3p ordinary

Sale

1,649

1.9520 GBP

3 1/3p ordinary

Sale

1,604

1.9500 GBP

3 1/3p ordinary

Sale

864

1.9490 GBP

3 1/3p ordinary

Sale

864

1.9460 GBP

3 1/3p ordinary

Sale

779

1.9494 GBP

3 1/3p ordinary

Sale

580

1.9480 GBP

3 1/3p ordinary

Sale

550

1.9440 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

381

1.9489 GBP

3 1/3p ordinary

SWAP

Decreasing Short

400

1.9510 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,434

1.9498 GBP

3 1/3p ordinary

SWAP

Decreasing Short

1,644

1.9479 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,924

1.9494 GBP

3 1/3p ordinary

SWAP

Decreasing Short

6,589

1.9466 GBP

3 1/3p ordinary

SWAP

Decreasing Short

6,997

1.9487 GBP

3 1/3p ordinary

SWAP

Decreasing Short

8,635

1.9610 GBP

3 1/3p ordinary

CFD

Decreasing Short

9,267

1.9541 GBP

3 1/3p ordinary

SWAP

Decreasing Short

9,622

1.9482 GBP

3 1/3p ordinary

SWAP

Decreasing Short

10,375

1.9610 GBP

3 1/3p ordinary

CFD

Increasing Short

13

1.9607 GBP

3 1/3p ordinary

SWAP

Increasing Short

434

1.9500 GBP

3 1/3p ordinary

SWAP

Increasing Short

800

1.9490 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,317

1.9490 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,522

1.9510 GBP

3 1/3p ordinary

SWAP

Increasing Short

9,129

1.9543 GBP

3 1/3p ordinary

SWAP

Increasing Short

72,213

1.9538 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 Apr 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213