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:

23 Sep 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:

37,225,526

6.43%

468,700

0.08%

(2)

Cash-settled derivatives:

and/or controlled:

182,197

0.03%

36,261,481

6.27%

(3)

Stock-settled derivatives (including options)

and agreements to purchase/sell:

0

0.00%

0

0.00%

TOTAL:

37,407,723

6.46%

36,730,181

6.35%

(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

200,000

1.7048 GBP

3 1/3p ordinary

Purchase

75,089

1.7091 GBP

3 1/3p ordinary

Purchase

65,865

1.7135 GBP

3 1/3p ordinary

Purchase

64,723

1.7085 GBP

3 1/3p ordinary

Purchase

63,690

1.7098 GBP

3 1/3p ordinary

Purchase

61,408

1.7094 GBP

3 1/3p ordinary

Purchase

50,518

1.7100 GBP

3 1/3p ordinary

Purchase

26,079

1.7099 GBP

3 1/3p ordinary

Purchase

20,903

1.7088 GBP

3 1/3p ordinary

Purchase

20,503

1.7068 GBP

3 1/3p ordinary

Purchase

10,376

1.7060 GBP

3 1/3p ordinary

Purchase

6,805

1.7040 GBP

3 1/3p ordinary

Purchase

6,683

1.7045 GBP

3 1/3p ordinary

Purchase

4,700

1.7066 GBP

3 1/3p ordinary

Purchase

4,435

1.7065 GBP

3 1/3p ordinary

Purchase

3,272

1.7050 GBP

3 1/3p ordinary

Purchase

1,882

1.7120 GBP

3 1/3p ordinary

Purchase

1,817

1.7055 GBP

3 1/3p ordinary

Purchase

185

1.7071 GBP

3 1/3p ordinary

Sale

148,160

1.7109 GBP

3 1/3p ordinary

Sale

143,546

1.7093 GBP

3 1/3p ordinary

Sale

56,074

1.7100 GBP

3 1/3p ordinary

Sale

7,589

1.7085 GBP

3 1/3p ordinary

Sale

7,406

1.7066 GBP

3 1/3p ordinary

Sale

5,320

1.7055 GBP

3 1/3p ordinary

Sale

5,153

1.7040 GBP

3 1/3p ordinary

Sale

2,953

1.7045 GBP

3 1/3p ordinary

Sale

2,200

1.7078 GBP

3 1/3p ordinary

Sale

1,882

1.7120 GBP

3 1/3p ordinary

Sale

1,623

1.7050 GBP

3 1/3p ordinary

Sale

1,061

1.7060 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

4,218

1.7087 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,757

1.7064 GBP

3 1/3p ordinary

SWAP

Decreasing Short

338

1.7070 GBP

3 1/3p ordinary

SWAP

Decreasing Short

2,200

1.7078 GBP

3 1/3p ordinary

SWAP

Decreasing Short

39,178

1.7081 GBP

3 1/3p ordinary

SWAP

Decreasing Short

38,784

1.7086 GBP

3 1/3p ordinary

SWAP

Decreasing Short

5,904

1.7100 GBP

3 1/3p ordinary

SWAP

Increasing Short

200,000

1.7048 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,272

1.7050 GBP

3 1/3p ordinary

SWAP

Increasing Short

45

1.7053 GBP

3 1/3p ordinary

SWAP

Increasing Short

10,369

1.7060 GBP

3 1/3p ordinary

SWAP

Increasing Short

873

1.7062 GBP

3 1/3p ordinary

SWAP

Increasing Short

4,700

1.7066 GBP

3 1/3p ordinary

SWAP

Increasing Short

6,264

1.7067 GBP

3 1/3p ordinary

SWAP

Increasing Short

20,503

1.7068 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,513

1.7072 GBP

3 1/3p ordinary

SWAP

Increasing Short

1,525

1.7073 GBP

3 1/3p ordinary

SWAP

Increasing Short

20,903

1.7088 GBP

3 1/3p ordinary

SWAP

Increasing Short

61,761

1.7094 GBP

3 1/3p ordinary

SWAP

Increasing Short

63,690

1.7098 GBP

3 1/3p ordinary

SWAP

Increasing Short

1

1.7100 GBP

3 1/3p ordinary

SWAP

Increasing Short

3,153

1.7101 GBP

3 1/3p ordinary

SWAP

Increasing Short

2

1.7125 GBP

3 1/3p ordinary

CFD

Decreasing Short

48,566

1.7100 GBP

3 1/3p ordinary

CFD

Increasing Short

48,566

1.7100 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:

24 Sep 2024

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213