This excerpt taken from the SBAC 10-Q filed Nov 5, 2008.
On September 16, 2008, the Company acquired Optasite Holding Company Inc. (Optasite) and Optasite became a wholly-owned subsidiary of the Company. As of the closing, Optasite owned 528 tower sites, located in 31 states, Puerto Rico and the U.S. Virgin Islands and had approximately 38 managed site locations.
Pursuant to the terms of the merger agreement, the Company issued 7.25 million shares of SBA Class A common stock to the Optasite securityholders, assumed Optasites fully-drawn $150 million senior credit facility (see Note 9) and assumed approximately $27.2 million of additional liabilities which the Company satisfied in cash at closing. The aggregate consideration paid for Optasite was approximately $433.3 million. The results of operations of Optasite are included with those of the Company from the date of the acquisition.