National Grid PlcLSE: NG.

Director/PDMR Shareholding

· Issued by National Grid plc

8 April 2026

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

Notification of Transactions of Persons Discharging Managerial Responsibilities ('PDMRs')

This announcement is made in accordance with Article 19 of the Market Abuse Regulation ('MAR'). In accordance with MAR, the relevant Financial Conduct Authority ('FCA') notifications are set out below.

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Andy Agg

2

Reason for the notification

a)

Position/status

Chief Financial Officer

b)

Initial notification /Amendment

Initial notification

3

Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor

a)

Name

National Grid plc

b)

LEI

8R95QZMKZLJX5Q2XR704

4

Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted

a)

Description of the financial instrument, type of instrument

Identification code

Ordinary shares of 12 204/473p each

GB00BDR05C01

b)

Nature of the transaction

Monthly purchase of securities ("partnership

shares") under the Share Incentive Plan

c)

Price(s) and volume(s)

Price(s)

Volume(s)

GBP 13.1892

11

d)

Aggregated information

- Aggregated volume

- Price

e)

Date of the transaction

2026.04.07

f)

Place of the transaction

London Stock Exchange (XLON)

Company analysis