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:

10 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:

13,940,716

2.41%

338,461

0.06%

(2)

Cash-settled derivatives:

and/or controlled:

288,207

0.05%

13,738,330

2.37%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

14,228,923

2.46%

14,076,791

2.43%

(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

522,229

1.9608 GBP

3 1/3p ordinary

Purchase

413,336

1.9618 GBP

3 1/3p ordinary

Purchase

313,327

1.9522 GBP

3 1/3p ordinary

Purchase

302,483

1.9615 GBP

3 1/3p ordinary

Purchase

94,530

1.9578 GBP

3 1/3p ordinary

Purchase

71,233

1.9561 GBP

3 1/3p ordinary

Purchase

58,903

1.9584 GBP

3 1/3p ordinary

Purchase

56,616

1.9607 GBP

3 1/3p ordinary

Purchase

38,176

1.9557 GBP

3 1/3p ordinary

Purchase

30,717

1.9585 GBP

3 1/3p ordinary

Purchase

29,867

1.9460 GBP

3 1/3p ordinary

Purchase

19,750

1.9413 GBP

3 1/3p ordinary

Purchase

18,993

1.9426 GBP

3 1/3p ordinary

Purchase

13,546

1.9562 GBP

3 1/3p ordinary

Purchase

11,967

1.9665 GBP

3 1/3p ordinary

Purchase

11,085

1.9583 GBP

3 1/3p ordinary

Purchase

9,758

1.9400 GBP

3 1/3p ordinary

Purchase

7,885

1.9546 GBP

3 1/3p ordinary

Purchase

5,797

1.9620 GBP

3 1/3p ordinary

Purchase

5,708

1.9538 GBP

3 1/3p ordinary

Purchase

3,566

1.9600 GBP

3 1/3p ordinary

Purchase

3,166

1.9580 GBP

3 1/3p ordinary

Purchase

3,102

1.9575 GBP

3 1/3p ordinary

Purchase

3,080

1.9528 GBP

3 1/3p ordinary

Purchase

2,973

1.9541 GBP

3 1/3p ordinary

Purchase

1,500

1.9565 GBP

3 1/3p ordinary

Purchase

1,394

1.9540 GBP

3 1/3p ordinary

Purchase

768

1.9470 GBP

3 1/3p ordinary

Purchase

768

1.9469 GBP

3 1/3p ordinary

Purchase

473

1.9478 GBP

3 1/3p ordinary

Purchase

58

1.9614 GBP

3 1/3p ordinary

Sale

518,536

1.9608 GBP

3 1/3p ordinary

Sale

413,336

1.9618 GBP

3 1/3p ordinary

Sale

73,081

1.9620 GBP

3 1/3p ordinary

Sale

68,880

1.9560 GBP

3 1/3p ordinary

Sale

61,827

1.9439 GBP

3 1/3p ordinary

Sale

52,600

1.9522 GBP

3 1/3p ordinary

Sale

39,909

1.9548 GBP

3 1/3p ordinary

Sale

22,235

1.9585 GBP

3 1/3p ordinary

Sale

11,967

1.9665 GBP

3 1/3p ordinary

Sale

9,746

1.9589 GBP

3 1/3p ordinary

Sale

9,307

1.9621 GBP

3 1/3p ordinary

Sale

5,086

1.9605 GBP

3 1/3p ordinary

Sale

3,950

1.9580 GBP

3 1/3p ordinary

Sale

3,102

1.9575 GBP

3 1/3p ordinary

Sale

2,353

1.9602 GBP

3 1/3p ordinary

Sale

1,394

1.9610 GBP

3 1/3p ordinary

Sale

798

1.9557 GBP

3 1/3p ordinary

Sale

768

1.9470 GBP

3 1/3p ordinary

Sale

675

1.9565 GBP

3 1/3p ordinary

Sale

506

1.9600 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

35

1.9700 GBP

3 1/3p ordinary

SWAP

Decreasing Short

603

1.9535 GBP

3 1/3p ordinary

SWAP

Decreasing Short

784

1.9580 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,062

1.9589 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,300

1.9543 GBP

3 1/3p ordinary

SWAP

Decreasing Short

3,373

1.9574 GBP

3 1/3p ordinary

SWAP

Decreasing Short

4,310

1.9551 GBP

3 1/3p ordinary

CFD

Decreasing Short

9,268

1.9602 GBP

3 1/3p ordinary

SWAP

Decreasing Short

10,053

1.9555 GBP

3 1/3p ordinary

SWAP

Decreasing Short

52,600

1.9522 GBP

3 1/3p ordinary

SWAP

Decreasing Short

61,827

1.9439 GBP

3 1/3p ordinary

SWAP

Increasing Short

117

1.9620 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,018

1.9580 GBP

3 1/3p ordinary

SWAP

Increasing Short

7,885

1.9546 GBP

3 1/3p ordinary

SWAP

Increasing Short

11,085

1.9583 GBP

3 1/3p ordinary

SWAP

Increasing Short

58,903

1.9584 GBP

3 1/3p ordinary

SWAP

Increasing Short

94,530

1.9578 GBP

3 1/3p ordinary

SWAP

Increasing Short

100,000

1.9401 GBP

3 1/3p ordinary

SWAP

Increasing Short

100,000

1.9501 GBP

3 1/3p ordinary

SWAP

Increasing Short

212,485

1.9549 GBP

3 1/3p ordinary

SWAP

Increasing Short

302,483

1.9615 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:

11 Apr 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213