Name of applicant:

Inmarsat plc

Name of scheme:

The Performance Share Plan

Period of return:

From:

2 April 2009

To:

1 October 2009

Balance of unallotted securities under scheme(s) from previous return:

139,493

Plus:  The amount by which the block scheme(s) has been increased since the date of the last return (if any increase has been applied for):

0

Less:  Number of securities issued/allotted under scheme(s) during period (see LR3.5.7G):

0

Equals:  Balance under scheme(s) not yet issued/allotted at end of period:

139,493

Name of contact:

Jessica Foster

Telephone number of contact:

020 7728 1304