Investor Relations

SIRIUS Satellite Radio Reports Strong Subscriber and Revenue Growth In First Quarter of 2005

- Company Currently Has Over 1.5 Million Subscribers
- Revenue Up 365% Over Prior Year First Quarter
- Monthly Churn Improved to 1.3%
- Strong Cash Position Maintained
- SIRIUS Increases 2005 Year-End Subscriber Guidance to Over 2.7 Million

NEW YORK, April 28, 2005 /PRNewswire-FirstCall via COMTEX/ -- SIRIUS Satellite Radio (Nasdaq: SIRI) today announced strong first quarter subscriber growth and financial and operating results, driven by continued demand for its superior programming.

(Logo: http://www.newscom.com/cgi-bin/prnh/19991118/NYTH125 )

As of March 31, 2005, SIRIUS had 1,448,695 subscribers, attributing the better-than-expected subscriber growth to robust retail sales and rapidly expanding sales in its automotive distribution channel. SIRIUS reported revenue of $43.2 million for the first quarter of 2005, a 365% increase over the $9.3 million for the year-ago quarter, driven by a 312% increase over the company's subscriber base of 351,663 at the end of first quarter 2004.

The company is again raising its 2005 year-end subscriber estimate. SIRIUS now expects to have over 2.7 million subscribers at year-end, up from previous guidance of over 2.5 million, due to strong subscriber growth trends and continued robust demand for its service.

"Coming off a strong finish last year, we continued to see increased demand for SIRIUS during the first quarter," said Mel Karmazin, CEO of SIRIUS. "Not only did we beat Wall Street consensus for subscriber and revenue growth, but we also registered our lowest churn ever, which clearly indicates a preference for our superior programming, as well as very high levels of customer satisfaction. Our strong results in the automotive channel are increasingly contributing to our subscriber growth, and we expect this momentum to build even further as more factory programs begin this year. Plus, with the addition of Martha Stewart Living Radio later this year, the arrival of Howard Stern next January and NASCAR in 2007, we believe demand for our service will continue to increase as we approach the launch of this exclusive content."

The first quarter subscriber figure reflects net additions of 305,437 subscribers compared to 90,602 net additions in the first quarter of 2004, an increase of 237%. SIRIUS had an average monthly churn of 1.3% during the first quarter, the lowest since the launch of its service. The historically low churn reflects high customer satisfaction with SIRIUS' premier programming. The company reported subscriber acquisition costs (SAC) per gross subscriber addition of $190 for the quarter, a 23% improvement over SAC per gross subscriber addition of $248 in the year-ago quarter. The company continues to expect SAC per gross subscriber addition to decrease to below $145 for full year 2005, with further declines expected in 2006.

In the first quarter of 2005, SIRIUS experienced significant increases in net subscriber additions across all its distribution channels while consumer awareness for the SIRIUS brand and for satellite radio in general continued to increase.

During the first quarter of 2005, SIRIUS added 174,202 net subscribers from its retail channel, a 166% increase over 65,514 retail net additions in the prior year first quarter. The company also added 132,211 net subscribers from its automotive, trucking and boating channels, a 449% increase over 24,093 net additions from those channels in the first quarter of 2004. Net additions from OEM and special markets represented 43% of total net additions in the first quarter of 2005, as compared to 27% of total net additions in the prior year's first quarter.

During the first quarter, Ford, BMW, Mercedes-Benz, Volvo, Land Rover, Jaguar and Volkswagen all announced expanded programs for installations of SIRIUS radios. In addition, Mitsubishi announced an exclusive agreement to factory install SIRIUS in various models beginning this fall.

SIRIUS' exclusive automotive partners, DaimlerChrysler, Ford and BMW continue to show a strong commitment to SIRIUS. In December 2004, DaimlerChrysler confirmed that its SIRIUS factory installation program was on track to produce over 500,000 subscribers over the 2005 and 2006 model years. BMW will begin offering SIRIUS as a factory-installed option in its new 3-Series when it is introduced next month. SIRIUS is already available as a factory-installed option on the 5-Series and 7-Series vehicles. In the first quarter of 2005, Ford announced plans to include SIRIUS as a factory-installed option in up to 21 of its models through the 2007 model year, and expects to generate up to one million SIRIUS subscribers by mid-calendar year 2007. Ford will begin factory installations of SIRIUS radios later this year.

SIRIUS continues to broaden the appeal of its programming to subscribers and advertisers. During 2005, the company announced an exclusive four-year agreement to create and launch Martha Stewart Living Radio later this year, as well as a five-year agreement to become the Official Satellite Radio Partner of NASCAR beginning in 2007. During the first quarter, SIRIUS hired two of the radio industry's most respected and accomplished advertising executives to help build advertising revenue on its non-music channels.

Guidance for 2005:

In view of a strong start to 2005, SIRIUS is raising guidance for 2005 net subscriber additions to 1.6 million, for a year-end 2005 subscriber target of over 2.7 million, up from over 2.5 million suggested by previous guidance. Estimated average monthly churn is expected to be in the range of 1.5% to 1.6% for 2005, ahead of the previous guidance of 1.6% to 1.7%, given the company's year-to-date reported churn and expectation of continued high customer satisfaction through year-end. The company continues to expect SAC per gross subscriber addition to be below $145 for the full year 2005, with further declines expected in 2006.

SIRIUS expects to generate $215 million of total revenue in 2005, up from previous guidance of $210 million, due to the increased subscriber growth for the year versus the previous guidance. The company now expects to report an adjusted loss from operations of approximately ($510) million in 2005, compared to previous guidance of ($480) million, reflecting increased SAC to support higher gross subscriber additions. Total operating cash uses, capital expenditures and purchases of restricted investments, are expected to be approximately ($375) million in 2005, as compared to previous guidance of ($350) million, primarily due to advance payments under our NASCAR agreement as well as increased SAC to support higher gross subscriber additions for the year.

SIRIUS ended the first quarter of 2005 with approximately $630 million in cash, cash equivalents and marketable securities, which the company believes is sufficient to reach cash flow breakeven in 2007 under its current business plan.

Conference Call Information:

SIRIUS will hold a conference call today at 8 am ET to discuss operating and financial results. The public, members of the investment community and the press will have live access to the conference call via the company's website http://www.sirius.com and on the SIRIUS service by tuning to SIRIUS Channel 131. A replay of the call will also be available on the SIRIUS website.

FIRST QUARTER 2005 VERSUS FIRST QUARTER 2004

For the first quarter of 2005, SIRIUS recognized total revenue of $43.2 million, compared with $9.3 million for the first quarter of 2004, a 365% year-over-year increase. This increase in revenue was driven by a net increase in the company's subscriber base of 1,097,032 subscribers, or 312%, from March 31, 2004 to March 31, 2005.

The company's adjusted loss from operations increased by $49.1 million, to ($127.1) million in 2005 (refer to the reconciliation table of GAAP loss from operations to adjusted loss from operations). This increase was driven in part by $40.1 million of increased subscriber acquisition costs, as SIRIUS' gross subscriber additions exceeded last year's first quarter gross subscriber additions by nearly 246,000 subscribers.

Programming and content expenses increased by $15.8 million, to $24.5 million for the first quarter of 2005, from $8.7 million for the first quarter of 2004. The increase in programming and content expenses was primarily attributable to an increase in costs to create, produce and acquire content, specifically costs associated with sports related programming initiatives, such as the NFL, NBA and college sports, and new branded music and talk channels such as Maxim Radio, Faction and Shade 45.

Sales and marketing expenses increased by $11.0 million, to $36.7 million for the first quarter of 2005, from $25.7 million for the year-ago first quarter. The increase in sales and marketing expenses was primarily a result of higher sponsorship and event marketing costs, increased OEM revenue share as a result of the increase in OEM net subscriber additions, higher distribution costs to support the expansion of our retail distribution channel, and personnel-related costs to support the continued growth of the company.

Finally, the company incurred increases in customer service and billing expenses, general and administrative expenses, and engineering, design and development expenses. Customer service and billing expenses increased by $5.6 million, to $9.5 million for the first quarter of 2005, from $3.9 million for the first quarter of 2004. This increase was a direct result of growth in the company's subscriber base and additional costs associated with its new billing system. General and administrative expenses increased by $6.9 million, to $14.8 million for the first quarter of 2005, from $7.9 million for the first quarter of 2004, primarily as a result of overhead expansion to support the continued growth of the business. Engineering, design and development expenses increased by $4.1 million, to $9.8 million for the first quarter of 2005, from $5.7 million for the first quarter of 2004, primarily the result of additional personnel-related costs to support research and development efforts and costs associated with tooling and manufacturing upgrades at DaimlerChrysler and Ford in preparation for SIRIUS factory installations.

SIRIUS reported a net loss of ($193.6) million, or ($0.15) per share, for the first quarter of 2005 compared with a net loss of ($144.1) million, or ($0.12) per share, for the first quarter of 2004.

(Selected financial information follows.)

SIRIUS defines adjusted loss from operations as GAAP loss from operations before depreciation and equity granted to third parties and employees. SIRIUS believes adjusted loss from operations is useful to investors because it represents operating expenses of the company excluding the effects of non-cash items.

SIRIUS defines average monthly revenue per subscriber, or ARPU, as the total earned subscriber revenue and net advertising revenue over the daily weighted average number of subscribers for the period.

SIRIUS defines subscriber acquisition costs, or SAC, per gross subscriber addition as SAC and the negative margin from the direct sale of SIRIUS radios and accessories over the number of gross subscriber additions for the period.

Adjusted loss from operations, ARPU and SAC per gross subscriber addition are not measures of financial performance under U.S. generally accepted accounting principles and are used as measures of operating performance. As a result, these metrics may be susceptible to varying calculations; may not be comparable to other similarly titled measures of other companies; and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with U.S. generally accepted accounting principles.

Any statements that express, or involve discussions as to, expectations, beliefs, plans, objectives, assumptions, future events or performance with respect to SIRIUS Satellite Radio Inc. are not historical facts and may be forward-looking and, accordingly, such statements involve estimates, assumptions and uncertainties which could cause actual results to differ materially from those expressed in any forward-looking statements. Accordingly, any such statements are qualified in their entirety by reference to the factors discussed in our Annual Report on Form 10-K for the year ended December 31, 2004 filed with the Securities and Exchange Commission. Among the key factors that have a direct bearing on our operational results are: our dependence upon third parties, including manufacturers of SIRIUS radios, retailers, automakers and programming partners, our competitive position and any events which affect the useful life of our satellites.

Sirius Satellite Radio Inc.
                                Quarterly Data
                                 (Unaudited)

                                                             As of
                                                     3/31/05        3/31/04
    Subscribers:
    Beginning subscribers                          1,143,258        261,061
    Net additions                                    305,437         90,602
    Ending subscribers                             1,448,695        351,663
      Retail                                         971,241        263,164
      OEM and special markets                        449,896         63,493
      Hertz                                           27,558         25,006


                                                   For the Three Months Ended
                                                     3/31/05        3/31/04

    Gross subscriber additions                       354,708        108,732
    Deactivated subscribers                           49,271         18,130
    Average monthly churn (1)                            1.3%           2.0%
    Subscriber acquisition costs
     per gross subscriber addition                     $ 190           $248
    Monthly ARPU:
      Average monthly subscriber revenue
       per subscriber before effects of Hertz
       subscribers and mail-in rebates               $ 10.64        $ 11.68
      Effects of Hertz subscribers                      0.01          (0.62)
      Effects of mail-in rebates                       (0.06)         (1.14)
      Average monthly subscriber
       revenue per subscriber                        $ 10.59         $ 9.92
      Average monthly net
       advertising revenue per subscriber               0.13           0.02
      ARPU                                            $10.72          $9.94

     (1) Average monthly churn is the number of deactivated subscribers
         divided by average quarterly subscribers.


                         Sirius Satellite Radio Inc.
                             Financial Highlights
                    (In thousands, except per share data)
                                 (Unaudited)

                                                        For the Three Months
                                                           Ended March 31,
                                                        2005           2004
    Revenue:
      Subscriber revenue, including
       effects of mail-in rebates                    $41,904         $9,202
      Advertising revenue, net of agency fees            534             20
      Equipment revenue                                  767             50
      Other revenue                                       11             19
    Total revenue                                     43,216          9,291

    Operating expenses:
      Cost of services (excludes
       depreciation shown separately below):
        Satellite and transmission                     6,813          8,412
        Programming and content                       24,488          8,690
        Customer service and billing                   9,492          3,860
        Cost of equipment                                976             64
      Sales and marketing                             36,732         25,682
      Subscriber acquisition costs                    67,093         26,981
      General and administrative                      14,832          7,869
      Engineering, design and development              9,842          5,729
      Depreciation                                    24,501         23,688
      Equity granted to third
       parties and employees (1)                      38,706         17,824
    Total operating expenses                         233,475        128,799
      Loss from operations                          (190,259)      (119,508)
    Other income (expense):
      Interest and investment income                   4,487          1,669
      Interest expense                                (7,325)       (23,699)
      Other income                                        45             --
    Total other income (expense)                      (2,793)       (22,030)
      Loss before income taxes                      (193,052)      (141,538)
      Income tax expense                                (560)        (2,521)
        Net loss                                   $(193,612)     $(144,059)
    Net loss per share (basic and diluted)            $(0.15)        $(0.12)
    Weighted average common shares
     outstanding (basic and diluted)               1,314,312      1,217,608

    (1) Allocation of equity granted to third parties and employees to other
        operating expenses:

    Satellite and transmission                          $559           $490
    Programming and content                            4,907          1,831
    Customer service and billing                         139             86
    Sales and marketing                               13,411         12,003
    Subscriber acquisition costs                       6,228            102
    General and administrative                         7,277          2,349
    Engineering, design and development                6,185            963
      Total equity granted to third
       parties and employees                         $38,706        $17,824


                         Sirius Satellite Radio Inc.
                             Financial Highlights
                                (In thousands)
                                 (Unaudited)

    Selected balance sheet data as of:

                                                    March 31,     December 31,
                                                      2005           2004
    Cash, cash equivalents and
     marketable securities                         $ 629,826       $759,168
    Restricted investments                           103,612         97,321
    Working capital                                  411,910        541,526
    Total assets                                   1,814,229      1,957,613
    Long-term debt                                   656,318        656,274
    Total liabilities                                966,060        956,980
    Accumulated deficit                           (2,059,468)    (1,865,856)
    Stockholders' equity                             848,169      1,000,633

The following table reconciles GAAP loss from operations, as reported, to adjusted loss from operations:

For the Three Months Ended
                                                           March 31,
                                                      2005           2004
    GAAP loss from operations, as reported         $(190,259)     $(119,508)
      Depreciation                                    24,501         23,688
      Equity granted to third parties and employees   38,706         17,824
    Adjusted loss from operations                  $(127,052)      $(77,996)


                         Sirius Satellite Radio Inc.
                             Financial Highlights
                                (In thousands)
                                 (Unaudited)

                                                  For the Three Months Ended
                                                           March 31,
                                                      2005           2004
    Cash flows from operating activities:

      Net loss                                     $(193,612)     $(144,059)
      Adjustments to reconcile net loss
       to net cash used in operating activities:
        Depreciation                                  24,501         23,688
        Non-cash interest expense                        762         20,022
        Loss on disposal of assets                       127             19
        Equity granted to third parties and employees 38,706         17,824
        Deferred income taxes                            560          2,521
      Changes in operating assets and liabilities:
        Marketable securities                             16            (92)
        Prepaid expenses and other current assets     (2,105)        (4,695)
        Other long-term assets                        (1,157)          (968)
        Accrued interest                               2,736          3,744
        Accounts payable and accrued expenses         (5,838)         2,621
        Deferred revenue                              19,660          8,495
        Other long-term liabilities                   (1,524)          (991)
          Net cash used in operating activities     (117,168)       (71,871)

    Cash flows from investing activities:
      Additions to property and equipment             (6,888)        (2,950)
      Sale of property and equipment                      12             28
      Purchases of restricted investments             (6,291)       (85,000)
      Maturities of available-for-sale securities      4,835         25,000
        Net cash used in investing activities         (8,332)       (62,922)

    Cash flows from financing activities:
      Proceeds from issuance of long-term debt, net       --        293,600
      Proceeds from exercise of stock options            993          1,453
      Proceeds from exercise of warrants                  --         19,850
      Other                                               (8)           (33)
        Net cash provided by financing activities        985        314,870

    Net (decrease) increase in cash
     and cash equivalents                           (124,515)       180,077
    Cash and cash equivalents
     at the beginning of period                      753,891        520,979
    Cash and cash equivalents
     at the end of period                           $629,376       $701,056


    E-SIRI

     Contacts for SIRIUS:

     Jim Collins
     Media
     212-901-6422
     jcollins@siriusradio.com

     Michelle McKinnon
     Analysts
     212-584-5285
     mmckinnon@siriusradio.com

     Jaymie VanValkenburgh
     Investors
     212-584-5158
     jvanvalkenburgh@siriusradio.com

SOURCE SIRIUS Satellite Radio

Media, Jim Collins, +1-212-901-6422, or jcollins@siriusradio.com, Analysts, Michelle
McKinnon, +1-212-584-5285, or mmckinnon@siriusradio.com, or Investors, Jaymie
VanValkenburgh, +1-212-584-5158, or jvanvalkenburgh@siriusradio.com, all of SIRIUS
Satellite Radio
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