System1 Group Regulatory News (SYS1)

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

System1 Group (Formerly BrainJuicer Group PLC)

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to thenotification obligation: iii

Ennismore Fund Management Limited

4. Full name of shareholder(s)  (if different from 3.):iv

1) Ennismore European Smaller Companies Fund

2) Ennismore European Smaller Companies Master Hedge Fund

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

9 May 2017

6. Date on which issuer notified:

11 May 2017

7. Threshold(s) that is/are crossed orreached: vi, vii

Below 8%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB00B1GVQH21

986,387

986,387

980,387

980,387

7.99%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

980,387

7.99%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

1) Ennismore European Smaller Companies Fund = 797,588 shares

2) Ennismore European Smaller Companies Master Hedge Fund = 182,799 shares

Therefore, the total under management:

Ennismore Fund Management Limited = 980,387

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

Danielle Etkin

15. Contact telephone number:

+44 20 7368 4230