Notice of Results

Notice of Results

Date for release of 2015 Third Quarter results

Inmarsat plc will report Results for the three months and nine months ended 30th September 2015 on Friday 6th November at 07.00 hrs GMT (London time).

Inmarsat management will host a conference call to discuss the Results on Friday 6th November starting at 08.30 hrs London time.

To access the call please dial +44(0)20 3427 1910 (US: +1 646 254 3364). The conference ID for the call is 4302217. The call will also be web-cast at www.inmarsat.com. The call will be recorded and available on our website after the event.

For further information, please contact:

Inmarsat plc

David Boyd +44 (0)20 7728 1518

[email protected]