$LXRXLEXICON PHARMACEUTICALS, INC.

Lexicon Pharmaceuticals, Inc. is a biopharmaceutical company developing treatments for human disease. The company was founded in 1995 in The Woodlands, Texas under the name Lexicon Genetics, Incorporated by co-founders Professor Allan Bradley, FRS and Professor Bradley's postdoctoral fellow Arthur T Sands. The company has used its patented mouse gene knockout technology and extensive in vivo screening capabilities to study nearly 5,000 genes in its Genome5000 program and has identified over 100 potential therapeutic targets.