Jun 6, 1992
                           American Mobile Radio Corporation is founded
                           American Mobile Radio Corporation is founded to provide a multi-channel, nationwide
                           audio service with high-quality digital sound and an unprecedented variety of
                           programming.

Mar 10, 1997
                           License is Granted to American Mobile Radio Corporation
                           American Mobile Radio Corporation is granted a satellite DARS (digital audio radio
                           service) license by the Federal Communications Commission.

Mar 10, 1998
                           Contract Signed with Hughes to Develop and Launch Satellites
                           American Mobile Radio Corporation engages Hughes Space and Communications
                           International (now Boeing Space Systems) to build two HS 702 geostationary
                           satellites with payloads to be provided by Alcatel.

May 27, 1998
                           Letter of Agreement Signed with Pioneer
                           Pioneer signs letter of agreement to license XM's technology and begin developing the
                           world's first satellite radios for automotive use.
Jun 10, 1998
                           Hugh Panero named CEO
                           Hugh Panero is named President & CEO of American Mobile Radio Corporation.
Jun 17, 1998
                           Letter of Agreement Signed with Alpine
                           Alpine signs letter of agreement to license XM's technology and begin developing
                           satellite radios for automotive use.
Aug 10, 1998
                           Lee Abrams Receives Coveted Award
                           Content & Programming SVP Lee Abrams receives recognition from one of the most
                           influential radio industry publications: The Album Network names him as one of the
                           most 120 influential people in the radio industry. Lee has also been recognized as the
                           number one radio programmer of all time by "Radio & Record" Magazine and as a
                           member of the "Newsweek" Cultural Elite 100.
Sep 24, 1998
                           Contract Signed with ST Microelectronics
                           ST Microelectronics licenses XM's technology and begins developing the first satellite
                           radio chipset for automotive use.
Oct 12, 1998
                           American Mobile Radio Corporation becomes XM Satellite Radio.
                           American Mobile Radio Corporation President and CEO Hugh Panero announce that
                           the company has changed its name to XM Satellite Radio Inc.
Jul 8, 1999
                           Clear Channel, DIRECTV and General Motors invest $250 million in XM.
                           The combined $250 million is comprised of $75 million each from Clear Channel and
                           the private investment group and $50 million each from General Motors and
                           DIRECTV. American Mobile also completed its acquisition of WorldSpace Inc.'s
                           interest in XM.
Oct 5, 1999
                           XM announces IPO at $12 per share.
                           XM Satellite Radio Holdings Inc. holds its initial public offering of 10,000,000 shares
                           of common stock at $12 per share.
 Feb 9, 2000
                           Sony Signs Contract with XM
                           Sony licenses XM's technology and begins developing world's first satellite radio that
                           can be transported between the car and home.
Jun 6, 2000
                           XM Names TBWA / Chiat/Day as Advertising Agency of Record.
                           After completing its national agency review XM selects TBWA/Chiat/Day Los Angeles Sep 25, 2001
                           XM Officially Launches the First U.S. Digital Satellite Radio Service
                           XM formally launches service in its two lead markets, Dallas/Fort Worth and San Diego
                           as its advertising agency of record.
Jul 14, 2000
                           XM is On The Move.
                           XM completes move to new headquarters at 1500 Eckington Place, Washington D.C. -
                           the largest state-of-the-art broadcast complex of its kind in the U.S., with 82
                           all-digital studios and 150,000 square feet.
Jul 31, 2000
                           XM Announces First Round of In-House Programming Talent.
                           XM begins building out its programming team, hiring the first 15 members of the group
                           that will bring the nation a revolutionary new audio experience.
Sep 13, 2000
                           XM Demos First Prototype Satellite Radio
                           XM's demonstration of first prototype satellite radio wows the crowds during an
                           open-house at the XM broadcast complex in Washington, D.C., followed by a
                           performance by Aretha Franklin that evening.
Oct 19, 2000
                           XM and ST Microelectronics announce the delivery of custom chipsets to radio
                           manufacturers
                           XM and STMicroelectronics, one of the world's leading semiconductor vendors,
                           successfully completes fabrication and initial testing of XM's first pass custom chips.
                           The chips are delivered to XM radio partners for integration into the manufacturing
                           process of XM satellite-capable radios. Delivery of these custom integrated circuits is
                           a major technical milestone in the production of XM's radios.
 Mar 1, 2001
                           XM Ready Radios Hit Retail Shelves
                           XM Ready radios from Pioneer and Alpine hit retail shelves, allowing consumers to
                           purchase head units which will be able to control XM tuners when they go on sale later
                           in the year.
Mar 18, 2001
                           XM launches "Rock"
                           Sea Launch successfully launches the first XM satellite, "Rock."
Mar 30, 2001
                           XM Announces Delivery Of Production Design Chipsets To Radio Manufacturers
                           ST Microelectronics delivers the first production chipsets to radio manufacturers.
May 8, 2001
                           XM launches "Roll"
                           Sea Launch successfully launches XM's second satellite, "Roll."