Director/PDMR shareholding

1

Details of the person discharging managerial responsibilities / person closely associated

a)

Name

Alex Warnock

2

Reason for the notification

a)

Position/status

Chief Operating Officer

b)

Initial notification/Amendment

Initial Notification

3

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

a)

Name

Gooch & Housego Plc

b)

LEI

213800DO3D00KYOPA952

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 20 pence each

GB0002259116

b)

Nature of transaction

(1) Exercise of share options with an exercise price of zero pence per share, and (2) subsequent sale of ordinary shares

c)

Price(s) and volume(s)

Price(s)

Volume(s)

(1) Nil

(2) 1,400.0p

68,878

52,448

Aggregated information

- Aggregated volume

- Price

68,878

£734,272

e)

Date of the transaction

19 January 2018

f)

Place of the transaction

London Stock Exchange