Sirius XM Radio (SIRI)

1998 Shares Award Plan

XM Holdings maintains a 1998 Shares Award Plan (the “1998 Plan”) under which employees, consultants and non-employee directors of XM were granted stock options and restricted stock awards. Stock option awards and restricted stock awards under the 1998 Plan generally vest ratably over three years based on continuous service. Stock option awards are generally granted with an exercise price equal to the market price of our common stock at the date of grant and expire no later than ten years from the date of grant. The 1998 Plan terminated in June 2008 and shares are no longer available for future grant.

1998 Shares Award Plan

SIZE="2">XM Holdings maintains a 1998 Shares Award Plan (the “1998 Plan”) under which employees, consultants and non-employee directors of XM were granted stock options and restricted stock awards. Stock option awards and restricted stock
awards under the 1998 Plan generally vest ratably over three years based on continuous service. Stock option awards are generally granted with an exercise price equal to the market price of our common stock at the date of grant and expire no later
than ten years from the date of grant. The 1998 Plan terminated in June 2008 and shares are no longer available for future grant.

1998 Shares Award Plan

XM Holdings maintained a 1998 Shares Award Plan (the “1998 Plan”) under which employees, consultants and non-employee directors of XM Holdings were granted stock options and restricted stock awards. Stock option awards and restricted stock awards under the 1998 Plan generally vest ratably over three years based on continuous service. Stock option awards are generally granted with an exercise price equal to the market price of our common stock at the date of grant and expire no later than ten years from the date of grant. The 1998 Plan terminated in June 2008 and shares are no longer available for future grant.

1998 Shares Award Plan

XM Holdings maintains a 1998 Shares Award Plan (the “1998 Plan”) under which employees, consultants and non-employee directors of XM were granted stock options and restricted stock awards. Stock option awards and restricted stock awards under the 1998

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Plan generally vest ratably over three years based on continuous service. Stock option awards are generally granted with an exercise price equal to the market price of our common stock at the date of grant and expire no later than ten years from the date of grant. The 1998 Plan terminated in June 2008 and shares are no longer available for future grant.