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:

07 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:

12,743,822

2.20%

495,992

0.09%

(2)

Cash-settled derivatives:

and/or controlled:

424,613

0.07%

12,577,890

2.17%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

13,168,435

2.28%

13,073,882

2.26%

(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

2,953,148

1.7503 GBP

3 1/3p ordinary

Purchase

354,210

1.7515 GBP

3 1/3p ordinary

Purchase

196,136

1.7513 GBP

3 1/3p ordinary

Purchase

142,104

1.7528 GBP

3 1/3p ordinary

Purchase

130,605

1.7527 GBP

3 1/3p ordinary

Purchase

120,032

1.7517 GBP

3 1/3p ordinary

Purchase

94,411

1.7509 GBP

3 1/3p ordinary

Purchase

77,880

1.7538 GBP

3 1/3p ordinary

Purchase

58,658

1.7512 GBP

3 1/3p ordinary

Purchase

46,853

1.7500 GBP

3 1/3p ordinary

Purchase

34,439

1.7545 GBP

3 1/3p ordinary

Purchase

23,070

1.7505 GBP

3 1/3p ordinary

Purchase

15,881

1.7516 GBP

3 1/3p ordinary

Purchase

15,016

1.7530 GBP

3 1/3p ordinary

Purchase

13,050

1.7560 GBP

3 1/3p ordinary

Purchase

6,576

1.7499 GBP

3 1/3p ordinary

Purchase

5,409

1.7551 GBP

3 1/3p ordinary

Purchase

577

1.7525 GBP

3 1/3p ordinary

Purchase

124

1.7574 GBP

3 1/3p ordinary

Purchase

43

1.7580 GBP

3 1/3p ordinary

Purchase

26

1.7570 GBP

3 1/3p ordinary

Purchase

16

1.7558 GBP

3 1/3p ordinary

Purchase

3

1.7600 GBP

3 1/3p ordinary

Sale

2,730,940

1.7500 GBP

3 1/3p ordinary

Sale

780,439

1.7516 GBP

3 1/3p ordinary

Sale

159,648

1.7538 GBP

3 1/3p ordinary

Sale

100,778

1.7515 GBP

3 1/3p ordinary

Sale

99,151

1.7527 GBP

3 1/3p ordinary

Sale

55,927

1.7539 GBP

3 1/3p ordinary

Sale

51,364

1.7549 GBP

3 1/3p ordinary

Sale

42,693

1.7517 GBP

3 1/3p ordinary

Sale

40,428

1.7507 GBP

3 1/3p ordinary

Sale

15,371

1.7532 GBP

3 1/3p ordinary

Sale

13,858

1.7521 GBP

3 1/3p ordinary

Sale

2,989

1.7525 GBP

3 1/3p ordinary

Sale

2,645

1.7560 GBP

3 1/3p ordinary

Sale

1,896

1.7535 GBP

3 1/3p ordinary

Sale

1,525

1.7510 GBP

3 1/3p ordinary

Sale

1,430

1.7598 GBP

3 1/3p ordinary

Sale

67

1.7557 GBP

3 1/3p ordinary

Sale

43

1.7580 GBP

3 1/3p ordinary

Sale

26

1.7570 GBP

3 1/3p ordinary

Sale

26

1.7530 GBP

3 1/3p ordinary

Sale

12

1.7550 GBP

3 1/3p ordinary

Sale

3

1.7601 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

CFD

Closing Short

2,974

1.7500 GBP

3 1/3p ordinary

SWAP

Decreasing Short

486

1.7500 GBP

3 1/3p ordinary

SWAP

Decreasing Short

528

1.7580 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,228

1.7542 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,989

1.7525 GBP

3 1/3p ordinary

SWAP

Decreasing Short

12,382

1.7534 GBP

3 1/3p ordinary

SWAP

Decreasing Short

41,053

1.7539 GBP

3 1/3p ordinary

SWAP

Decreasing Short

91,382

1.7519 GBP

3 1/3p ordinary

SWAP

Decreasing Short

108,547

1.7523 GBP

3 1/3p ordinary

SWAP

Decreasing Short

768,408

1.7516 GBP

3 1/3p ordinary

SWAP

Increasing Short

264

1.7580 GBP

3 1/3p ordinary

SWAP

Increasing Short

550

1.7560 GBP

3 1/3p ordinary

SWAP

Increasing Short

5,409

1.7551 GBP

3 1/3p ordinary

SWAP

Increasing Short

5,594

1.7517 GBP

3 1/3p ordinary

SWAP

Increasing Short

15,881

1.7516 GBP

3 1/3p ordinary

SWAP

Increasing Short

34,439

1.7545 GBP

3 1/3p ordinary

SWAP

Increasing Short

43,851

1.7500 GBP

3 1/3p ordinary

SWAP

Increasing Short

77,880

1.7538 GBP

3 1/3p ordinary

SWAP

Increasing Short

506,536

1.7523 GBP

3 1/3p ordinary

SWAP

Increasing Short

783,866

1.7522 GBP

3 1/3p ordinary

SWAP

Opening Long

1,896

1.7535 GBP

3 1/3p ordinary

SWAP

Opening Long

2,149

1.7499 GBP

3 1/3p ordinary

CFD

Opening Long

2,974

1.7500 GBP

3 1/3p ordinary

CFD

Opening Long

5,704

1.7530 GBP

3 1/3p ordinary

SWAP

Opening Long

8,490

1.7528 GBP

3 1/3p ordinary

SWAP

Opening Long

29,789

1.7501 GBP

3 1/3p ordinary

CFD

Opening Long

211,012

1.7540 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:

08 Mar 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213