Director/PDMR Shareholding

RNS Number : 5570C

National Grid PLC

29 June 2016

29^th June 2016

National Grid plc ('National Grid or the Company' )

_____________________________________________________________

Notification of Directors' and Executive Committee Members Interests

____________________________________________________________

Long Term Performance Plan

____________________________________________________________

Late Yesterday, National Grid received a notification from the Trustee (UBS Trustees (Jersey) Limited) of the National Grid Long Term Performance Plan. The following Executive Directors and Executive Committee Members were granted an award of shares on 28 June 2016 in National Grid plc (the 'Shares') under the National Grid Long Term Performance Plan, calculated by reference to a share price of 1,021.00p and an ADS price of $69.1825. The extent to which awards will vest will depend upon the Company's performance against the relevant conditions. Subject to performance, the shares will vest in July 2019 and shares will be transferred to participants net of deductions.

Director	Number of Shares/ADSs*
John Pettigrew	282,810
Andrew Bonfield	220,883
Dean Seavers	44,447*
Executive Committee Member
Stephanie Hazell	75,803
Alison Kay	71,947
George Mayhew	61,926
Mike Westcott	88,148
Richard Adduci	14,098*

------------------------------------------------------------------------

The total share interests of the above Directors and Executive Committee Members, following these changes, are:

Director	Number of Shares/ADSs*
John Pettigrew	938,777
Andrew Bonfield	1,396,234
Dean Seavers	136,119*
Executive Committee Member
Stephanie Hazell	287,114
Alison Kay	360,031
George Mayhew	332,609
Mike Westcott	454,283
Richard Adduci	28,380*