Listing Application

5 October 2017

Sophos Group plc

(the "Company")

Listing Application

Application has been made to the Financial Conduct Authority (the "FCA") and London Stock Exchange plc (the "London Stock Exchange") for 842,329 ordinary shares of 3 pence each in the capital of the Company (the "Shares") to be admitted to the premium listing segment of the Official List of the FCA and to trading on the London Stock Exchange's main market for listed securities ("Admission").

The Shares were allotted and issued by the Company between July and October 2017 under the terms of the Company's Long Term Incentive Plan.

Admission is expected to become effective on 6 October 2017.

Block Listing Application

Application has also been made to the FCA and to the London Stock Exchange for 8,250,000 ordinary shares of 3 pence each in the capital of the Company (the "Block Listing Shares") to be admitted to the premium listing segment of the Official List of the FCA and to trading on the London Stock Exchange's main market for listed securities using a block listing ("Block Listing Admission"). The Block Listing Shares will, upon issue, rank equally with all the other ordinary shares of 3 pence each in the capital of Company that are then in issue.

The Block Listing Shares will be issued by the Company from time to time under the terms of:

Block Listing Admission is expected to become effective on 6 October 2017.

This notification is provided in accordance with paragraph 3.3.5R of the Listing Rules.

For further information please contact: