1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Justin Hughes

2

Reason for the notification

a)

Position/status

COO

b)

Initial notification /Amendment

Initial notification

3

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

a)

Name

SThree plc

b)

LEI

2138003NEBX5VRP3EX50

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

Ordinary shares of 1p

GB00B0KM9T71

b)

Nature of the transaction

Grant of options under the SThree plc Savings Related Share Option (SAYE) Scheme. 3 year scheme which is exercisable between 1 December 2020 to 31 May 2021.

c)

Price(s) and volume(s)

7,014 shares

Fixed exercise price of 256.60p

d)

Aggregated information:

- Aggregated volume

- Price

N/A

e)

Date of the transaction

22/09/17

f)

Place of the transaction

London Stock Exchange