X0303 4 2009-08-18 0001394954 GT Solar International, Inc. SOLR 0001437637 Keck David W GT SOLAR INTERNATIONAL, INC. 243 DANIEL WEBSTER HIGHWAY MERRIMACK NH 03054 0 1 0 0 VP-GM, Polysilicon Common Stock, par value $.01 2009-08-18 4 M 0 17085 1.66 D 177660 D Common Stock, par value $.01 2009-08-18 4 S 0 17085 5.28 D 160575 D Stock Option 1.66 2009-08-18 4 M 0 17085 0 D 2016-07-07 Common Stock, $01 par value 17085 0 D The price represents the weighted average purchase price for multiple transactions reported on this line. The prices of the transactions reported on this line range from $5.73 to $5.94. The reporting person undertakes to provide, upon request by the Commission staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price. Of 306,000 options awarded to the reporting person on July 7, 2006, one third vested on July 7, 2007, the first anniversary of the grant, and the balance vests in equal monthly installments of 1/36 of total each month subsequent to July 2007. /s/Allison Pellegrino, under power of attorney 2009-08-19