GTC’s History of Ever More Dilutive Financings (2004-2008) <pre> Warrant Basic Diluted‡ Gross Shares Warrants Exrcs S/O Aftr S/O Aftr Date Proceeds Issued Price Issued Price Offering Offering Dec08* $15.0M 48.4M 0.31 23.2M 0.31 175M 197M Feb08 $6.0M 6.9M†† 0.87 6.9M 0.87 103M 126M Jan07† $25.0M 20.2M 1.23 92M 108M Jul06 $17.5M 12.0M 1.38 7.8M 1.41 73M 89M Dec05 $16.7M 9.1M 1.78 3.6M 2.05 61M 69M Aug05 $8.0M 4.6M 1.75 1.8M 2.68 52M 56M Jan05 $10.4M 7.7M 1.35 46M 50M Mar04 $15.0M 6.4M 2.35 38M 42M *Pending shareholder vote. ‡Includes options and warrants with an exercise price <$3. †Financing was announced in Oct 2006. ††Includes 2.0M shares from conversion of LFB’s term loan.</pre>