EXHIBIT 10.13 AMERICAN TOWER CORPORATION STOCK PURCHASE AGREEMENT THIS AGREEMENT (this "Agreement") is made as of February 4, 1999 by and between American Tower Corporation, a Delaware corporation ("ATC") and Credit Suisse First Boston Corporation...Stock Purchase Agreement • March 19th, 1999 • American Tower Corp /Ma/ • Communications services, nec • Delaware
a) Registration by ATC......................................... 1 ------------------- (b) Registration at CSFB's Request.............................. 2 ------------------------------ (c) Registration Generally...................................... 3...Registration Rights Agreement • March 19th, 1999 • American Tower Corp /Ma/ • Communications services, nec • New York
