Holding(s) in Company

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

Hostelworld 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

-I.G. Investment Management, Ltd.

-Investors Group Inc.

-IGM Financial Inc.

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

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

July 1, 2016

6. Date on which issuer notified:

July 12, 2016

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

Below minimum threshold

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

GB0001826634

2,730,679

2.857%

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

2,730,679

2.857%

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

The voting rights (2.857%) are held by I.G. Investment Management, Ltd. (2.857%), acting as manager and portfolio advisor, and I.G. International Management Limited (2.857%) acting as portfolio advisor, of various mutual funds, as a result of Regulation 15(1)(h). Investors Group Inc. is a 100% shareholder in both I.G. Investment Management, Ltd. and I.G. International Management Limited.

IGM Financial Inc. is a 100% shareholder in Investors Group Inc.

All of the above (except I.G. Investment Management, Ltd. and I.G. International Management Limited) have an indirect holding of 2.857% as a result of Regulation 15(1)(e).

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

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

13. Additional information:

14. Contact name:

Jean Carroll, I.G. International Management Limited (investment advisor to two of the three mutual funds that hold the shares that are the subject of this notice)

15. Contact telephone number:

+353-1-449 4002

Note: Annex should only be submitted to the FCA not the issuer

Annex: Notification of major interests in share

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

I.G. Investment Management, Ltd.

Contact address

(registered office for legal entities)

447 Portage Avenue

Winnipeg, Manitoba

Canada R3B 3H5

Phone number & email

(204) 956-8224 [email protected]

Other useful information

(at least legal representative for legal persons)

B: Identity of the notifier, if applicable

Full name

I.G. International Management Limited

Contact address

Brooklawn House

Shelbourne Road

Ballsbridge

Dublin 4. Ireland

Phone number & email

+353-1-449 4002

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

[email protected]

C: Additional information

For notes on how to complete form TR-1 please see the FCA website.