This excerpt taken from the SIRI 10-K filed Mar 1, 2007.
Sources of Shares Deliverable Under Awards. Any Shares delivered pursuant to an Award may consist, in whole or in part, of authorized and unissued Shares or of treasury Shares.
Section 5. Eligibility. Any employee of, or consultant to, the Company or any of its Affiliates (including any prospective employee), or non-employee director who is a member of the Board or the board of directors of an Affiliate, shall be eligible to be selected as a Participant.
Section 6. Stock Options.