Exhibit 4.20 THIS WARRANT AND ANY SECURITIES ACQUIRED UPON THE EXERCISE OF THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS AND NEITHER THIS WARRANT NOR SUCH...Warrant Agreement • November 14th, 2002 • Sirius Satellite Radio Inc • Radio broadcasting stations • New York
Exhibit 10.13 LOCK-UP AGREEMENT LOCK-UP AGREEMENT, dated as of October 17, 2002, by and among Sirius Satellite Radio Inc., a Delaware corporation (the "Company"), Apollo Investment Fund IV, L.P., a Delaware limited partnership ("AIF"), Apollo Overseas...Lock-Up Agreement • November 14th, 2002 • Sirius Satellite Radio Inc • Radio broadcasting stations • New York
