Personal

Owner

SIG - TX ASSETS, LLC

Aug 16, 2005

Computer and Scientific

Owner

SIG - TX ASSETS, LLC

Dec 10, 2002

Computer and Scientific

Owner

SIG - TX ASSETS, LLC

Jul 19, 2005

Insurance and Financial and 2 other

Owner

SIG - TX ASSETS, LLC

Mar 21, 2000

Computer and Scientific

Owner

SIG - TX ASSETS, LLC

May 6, 1997

Computer and Scientific

Owner

SIG - TX ASSETS, LLC

Sep 6, 1994