Grafton Group Regulatory News (GFTU)

NOTIFICATION OF MAJOR HOLDINGS (to be sent to the relevant issuer)i

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attachedii:

Grafton Group PLC

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

[x ] An acquisition or disposal of voting rights

[ ] An acquisition or disposal of financial instruments

[ ] An event changing the breakdown of voting rights

[ ] Other (please specify)iii:

3. Details of person subject to the notification obligationiv :

Name: Dimensional Fund Advisors LP

City and country of registered office (if applicable):

Austin, Texas, United States of America

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

The shares are held by one or more nominees/custodians

5. Date on which the threshold was crossed or reachedvi:

Monday 26 June 2017

6. Date on which issuer notified:

Wednesday 28 June 2017

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

3% of voting rights

8. Total positions of person(s) subject to the notification obligation:

% of voting rights attached to shares (total of 9.A)

% of voting rights through financial instruments(total of 9.B.1 + 9.B.2)

Total of both in % (9.A + 9.B)

Total number of voting rights of issuervii

Resulting situation on the date on which threshold was crossed or reached

3.002%

-

3.002%

7,112,538

Position of previous notification (if applicable)

9. Notified details of the resulting situation on the date on which the threshold was crossed or reachedviii:

A: Voting rights attached to shares

Class/type ofshares

ISIN code (if possible)

Number of voting rightsix

% of voting rights

Direct

Indirect

Direct

Indirect

Ordinary Shares of €0.05 par value

7,112,538

3.002%

SUBTOTAL A

7,112,538

3.002%

B 1: Financial Instruments according to Regulation 17(1)(a) of the Regulations

Type of financial instrument

Expirationdatex

Exercise/Conversion Periodxi

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

% of voting rights

SUBTOTAL B.1

B 2: Financial Instruments with similar economic effect according to Regulation 17(1)(b) of the Regulations

Type of financial instrument

Expirationdatex

Exercise/Conversion Period xi

Physical or cash settlementxii

Number of voting rights

% of voting rights

SUBTOTAL B.2

10. Information in relation to the person subject to the notification obligation (please tick the applicable box):

[] Person subject to the notification obligation is not controlled by any natural person or legal entity and does not control any other undertaking(s) holding directly or indirectly an interest in the (underlying) issuer.xiii

[x] Full chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held starting with the ultimate controlling natural person or legal entityxiv:

Namexv

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

The ordinary shares are held in segregated accounts and funds (together, the "Accounts") managed on a discretionary basis by Dimensional Fund Advisors LP and its subsidiary undertakings (i) Dimensional Fund Advisors Ltd., (ii) Dimensional Fund Advisors Canada ULC and (iii) DFA Australia Limited.

Dimensional Fund Advisors LP is controlled by its general partner, Dimensional Holdings Inc.

Dimensional Fund Advisors LP, on behalf of itself and its subsidiary undertakings, expressly disclaims beneficial ownership of the shares held in the Accounts.

11. In case of proxy voting: [name of the proxy holder] will cease to hold [% and number] voting rights as of [date]

N/A

12. Additional informationxvi:

The position has been calculated on the basis of 236,965,138 outstanding shares (excluding treasury shares).