Director/PDMR Shareholding

1.

Details of PDMR / person closely associated

Name

Gary Bullard

2.

Reason for the notification

a)

Position / status

Non-Executive Director

b)

Initial notification / amendment

Initial notification

3.

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Full name of the entity

Spirent Communications plc

b)

Legal Entity Identifier Code

213800HKCUNWP1916L38

4.

Details of the transaction(s)

a)

Description of the financial instrument

Identification code

Ordinary shares of 3 1/3 pence each

GB0004726096

b)

Nature of the transaction

Acquisition of shares via the Spirent Dividend Reinvestment Plan

c)

Price(s) and volume(s)

d)

Aggregated information

- Aggregated volume

- price

658

GBP1.208000

e)

Date of the transaction

9 May 2018

f)

Place of the transaction

London

1.

Details of PDMR / person closely associated

Name

Gary Bullard

2.

Reason for the notification

a)

Position / status

Non-Executive Director

b)

Initial notification / amendment

Initial notification

3.

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Full name of the entity

Spirent Communications plc

b)

Legal Entity Identifier Code

213800HKCUNWP1916L38

4.

Details of the transaction(s)

a)

Description of the financial instrument

Identification code

Ordinary shares of 3 1/3 pence each

GB0004726096

b)

Nature of the transaction

Acquisition of shares via the Spirent Dividend Reinvestment Plan

c)

Price(s) and volume(s)

d)

Aggregated information

- Aggregated volume

- price

172

GBP1.209250

e)

Date of the transaction

11 September 2018

f)

Place of the transaction

London

PDMR

Total holding

Gary Bullard

50,830