SThree Regulatory News (STEM)

1. Details of the person discharging managerial responsibilities / person closely associated

a) Names

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

Exercise of shares under the Long Term Incentive Plan ("LTIP")

Sold enough shares to cover tax liabilities and retained remaining shares.

c) Price(s) and volume(s)

Names

Justin Hughes

Price(s)

347.5p

Volume(s)

2,502

Retained 35,424 shares

d) Aggregated information

- Aggregated volume

- Price

N/A

e) Date of the transaction

28/02/18

f) Place of the transaction

London Stock Exchange