Additional Listing

18 October 2016

Inmarsat plc (the 'Company')

Additional Listing

The Company confirms the allotment and issue of 946,283 ordinary shares of €0.0005 each ('Shares') at a price of 708.85 pence per Share, to shareholders who are participants in the Company's Scrip Dividend Scheme (the 'Scheme') in respect of a dividend for the year ending 31 December 2016 payable on 21st October 2016. 

The Shares rank equally with existing issued ordinary shares.

Application has been made to the Financial Conduct Authority for the Shares to be admitted to the Official List, and to the London Stock Exchange for the Shares to be admitted to trading. Dealings in the Shares are expected to commence on 21st October 2016.

The figure of 452,059,283 may be used from 21st October 2016 by shareholders (and others with notification obligations) as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the Disclosure and Transparency Rules.

In according with Listing Rule 9.6.1, copies of the following documents relating to the Scheme were submitted to the National Storage Mechanism and are available for inspection at www.hemscott.com/nsm.do

· Introduction letter

· Scrip Mandate form

· Terms and conditions of the Scheme

Alison Horrocks

Company Secretary