4 March 2022

System1 Group PLC (AIM: SYS1)

("System1" or the "Company")

Transaction in Own Shares

System1 Group PLC, the marketing decision-making platform, announces that it has made the following purchases of ordinary shares of 1 pence each in the capital of the Company ("Ordinary Shares") from Canaccord Genuity Limited on the London Stock Exchange pursuant to the Share Buyback Programme announced on 7 January 2022.

The Company will hold the repurchased shares in treasury. Following the purchase of the Ordinary Shares, the number of Ordinary Shares in issue and admitted to trading on AIM will be 12,757,702 (excluding treasury shares), and the Company will hold 469,071 ordinary shares in treasury.

This figure of 12,757,702 Ordinary Shares may be used by shareholders in the Company as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the Financial Conduct Authority's Disclosure Guidance and Transparency Rules.

The Company will make further announcements in due course following the completion of any further purchases pursuant to the Share Buyback Programme.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the Market Abuse Regulation), the schedule below contains detailed information about the purchases made by Canaccord Genuity Limited on behalf of System1.

Individual transactions:

Enquiries: