Director/PDMR Shareholding

SThree (STEM) SThree: Director/PDMR Shareholding 23-Feb-2022 / 16:00 GMT/BST Dissemination of a Regulatory Announcement, transmitted by EQS Group. The issuer is solely responsible for the content of this announcement. SThree plc Notification and public disclosure of transactions by persons discharging managerial responsibilities ("PDMRs") and persons closely associated with them SThree plc (the 'Company') announces that performance share awards under the Long Term Incentive Plan ("LTIP") were granted on 22 February 2022, for no consideration, to the PDMRs detailed below: PDMR Position Number of Shares awarded under the LTIP Timo Lehne Interim Chief Executive 133,630 Andrew Beach Chief Financial Officer 117,886 The awards will vest three years after grant date, subject to the performance conditions being met. Performance targets and target ranges are set out as follows: LTIP targets EPS TSR vs. peer group Strategic ESG 2022-2024 2024 EPS to be between 51.9p (25% vesting) and 63.0p (100% vesting) 2022-2024 performance between median (25% vesting) and upper quartile (100% vesting) 2024 adjusted operating profit conversion ratio between 19% (25% vesting) and 23% (100% vesting) Three targets in relation to: Positively impacting lives Increasing our renewables business Carbon reduction LTIP weighting 50% 20% 20% 10% (3.3% for each measure) The relevant notifications are set out below. 1. Details of the person discharging managerial responsibilities / person closely associated a) Names Timo Lehne 2. Reason for the notification a) Position/status Director and Interim Chief Executive 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 A performance share award granted under the SThree plc Long Term Incentive Plan c) Price(s) and volume(s) Price £Nil Volume(s) 133,630 d) Aggregated information - Aggregated volume - Price 133,630 £Nil e) Date of the transaction 22/02/2022 f) Place of the transaction Off market 1. Details of the person discharging managerial responsibilities / person closely associated a) Names Andrew Beach 2. Reason for the notification a) Position/status Director and Chief Financial Officer 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 A performance share award granted under the SThree plc Long Term Incentive Plan c) Price(s) and volume(s) Price £Nil Volume(s) 117,886 d) Aggregated information - Aggregated volume - Price 117,886 £Nil e) Date of the transaction 22/02/2022 f) Place of the transaction Off market Enquiries: Bill Warner Deputy Company Secretary

ISIN:	GB00B0KM9T71
Category Code:	DSH
TIDM:	STEM
LEI Code:	2138003NEBX5VRP3EX50
OAM Categories:	3.1. Additional regulated information required to be disclosed under the laws of a Member State
Sequence No.:	144946
EQS News ID:	1286957

End of Announcement	EQS News Service