Holding(s) in Company

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

PETS AT HOME GROUP PLC

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

An acquisition or disposal of voting rights

✓

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

CANADA PENSION PLAN INVESTMENT BOARD

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

7 JUNE 2016

6. Date on which issuer notified:

8 JUNE 2016

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

PREVIOUS HOLDING WAS BELOW 3%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type of shares

if possible usingthe ISIN CODE

Situation previous to the triggering transaction

Resulting situation after the triggering transaction

Number of

Shares

Number

Of

Voting Rights

Number of shares

Number of voting

rights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

ORDINARY SHARES OF 1P EACH

GB00BJ62K685

0

0

19,157,557

19,157,557

0

3.83

0

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument

Expiration date xiii

Exercise/ Conversion Period xiv

Number of voting rights that may be acquired if the instrument is exercised/ converted.

% of voting rights

N/A

N/A

N/A

N/A

N/A

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

N/A

N/A

N/A

N/A

N/A

Nominal

Delta

N/A

N/A

Total (A+B+C)

Number of voting rights

Percentage of voting rights

19,157,557

3.83

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

N/A

Proxy Voting:

10. Name of the proxy holder:

N/A

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

N/A

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

N/A

13. Additional information:

N/A

14. Contact name:

BRIAN SAVAGE, SENIOR MANAGER, LEGAL

15. Contact telephone number:

+1 416 972 8270