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:

15 Aug 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:

24,702,939

4.27%

1,028,439

0.18%

(2)

Cash-settled derivatives:

and/or controlled:

521,517

0.09%

23,783,078

4.11%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

25,224,456

4.36%

24,811,517

4.29%

(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

221,776

1.7539 GBP

3 1/3p ordinary

Purchase

128,319

1.7503 GBP

3 1/3p ordinary

Purchase

107,054

1.7509 GBP

3 1/3p ordinary

Purchase

88,448

1.7495 GBP

3 1/3p ordinary

Purchase

62,472

1.7533 GBP

3 1/3p ordinary

Purchase

62,373

1.7600 GBP

3 1/3p ordinary

Purchase

56,556

1.7599 GBP

3 1/3p ordinary

Purchase

43,206

1.7515 GBP

3 1/3p ordinary

Purchase

30,253

1.7562 GBP

3 1/3p ordinary

Purchase

23,120

1.7535 GBP

3 1/3p ordinary

Purchase

15,077

1.7497 GBP

3 1/3p ordinary

Purchase

12,483

1.7498 GBP

3 1/3p ordinary

Purchase

12,108

1.7500 GBP

3 1/3p ordinary

Purchase

10,854

1.7490 GBP

3 1/3p ordinary

Purchase

9,581

1.7551 GBP

3 1/3p ordinary

Purchase

9,425

1.7537 GBP

3 1/3p ordinary

Purchase

6,447

1.7506 GBP

3 1/3p ordinary

Purchase

6,420

1.7561 GBP

3 1/3p ordinary

Purchase

5,738

1.7547 GBP

3 1/3p ordinary

Purchase

2,659

1.7511 GBP

3 1/3p ordinary

Purchase

1,686

1.7523 GBP

3 1/3p ordinary

Purchase

1,450

1.7470 GBP

3 1/3p ordinary

Purchase

60

1.7451 GBP

3 1/3p ordinary

Sale

156,965

1.7495 GBP

3 1/3p ordinary

Sale

122,624

1.7550 GBP

3 1/3p ordinary

Sale

80,269

1.7600 GBP

3 1/3p ordinary

Sale

17,753

1.7565 GBP

3 1/3p ordinary

Sale

15,515

1.7520 GBP

3 1/3p ordinary

Sale

12,500

1.7560 GBP

3 1/3p ordinary

Sale

8,399

1.7501 GBP

3 1/3p ordinary

Sale

8,009

1.7561 GBP

3 1/3p ordinary

Sale

1,572

1.7500 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

Increasing Short

131,322

1.7517 GBP

3 1/3p ordinary

CFD

Decreasing Short

28,937

1.7600 GBP

3 1/3p ordinary

CFD

Increasing Short

13,854

1.7524 GBP

3 1/3p ordinary

CFD

Increasing Short

61,039

1.7600 GBP

3 1/3p ordinary

SWAP

Increasing Short

12,978

1.7505 GBP

3 1/3p ordinary

SWAP

Decreasing Short

7,696

1.7498 GBP

3 1/3p ordinary

SWAP

Opening Long

6,928

1.7520 GBP

3 1/3p ordinary

SWAP

Increasing Long

48,982

1.7600 GBP

3 1/3p ordinary

SWAP

Closing Long

52,701

1.7564 GBP

3 1/3p ordinary

SWAP

Increasing Short

312

1.7588 GBP

3 1/3p ordinary

SWAP

Increasing Short

942

1.7500 GBP

3 1/3p ordinary

SWAP

Increasing Short

23,120

1.7535 GBP

3 1/3p ordinary

SWAP

Increasing Short

932

1.7601 GBP

3 1/3p ordinary

SWAP

Increasing Short

128,319

1.7503 GBP

3 1/3p ordinary

SWAP

Increasing Short

13,444

1.7600 GBP

3 1/3p ordinary

SWAP

Increasing Short

41,338

1.7515 GBP

3 1/3p ordinary

SWAP

Increasing Short

2,344

1.7491 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,308

1.7528 GBP

3 1/3p ordinary

SWAP

Increasing Short

6,447

1.7506 GBP

3 1/3p ordinary

SWAP

Increasing Short

31,756

1.7509 GBP

3 1/3p ordinary

SWAP

Increasing Short

35,138

1.7569 GBP

3 1/3p ordinary

SWAP

Increasing Short

11,061

1.7600 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:

16 Aug 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213