Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

William Hill 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:

OppenheimerFunds, Inc.

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

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

2 February 2017

6. Date on which issuer notified:

3 February 2017

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

5.00% (decreased to 4.71%)

8. Notified details:

Investor Relations Contact:

Computershare Investor Services PLC

The Pavilions

Bridgwater Road

Bristol

BS99 6ZZ

United Kingdom

[email protected]

A: Voting rights attached to shares

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

Direct

Direct

Indirect

Direct

Indirect

GB0031698896

44,473,288

44,473,288

40,430,974

4.71%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/Conversion Period

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

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date

Exercise/Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

40,430,974

4.71%

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

OppenheimerFunds, Inc. ("OFI") is a registered investment advisor with the U.S. SEC. Its ultimate parent company, Massachusetts Mutual Life Insurance Company, qualifies for disaggregation under FSA regulations. The shares of the issuer are held by investment accounts managed by OFI and its subsidiary, OFI Global Asset Management, Inc. ("OFIG").

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:

The percentage of holdings noted above is based on the total number of voting rights in the company to be 857,679,766 as disclosed by the company on 1 February 2017.

14. Contact name:

Judith Gottlieb

Compliance Specialist

OppenheimerFunds, Inc.

15. Contact telephone number:

001 (212) 323-4858