Silicon Graphics International (SGI) SC 13D Silicon Graphics International / WASATCH ADVISORS ownership change

Beneficial Ownership of Common Stock	Purchase or Sale	Quantity		Transaction Date		Price per Share (including commission)		How Effected
Wasatch Advisors	Purchase		10,000		10/21/2011		13.00	Open Market
Wasatch Advisors	Purchase		8,020		10/25/2011		13.05	Open Market
Wasatch Advisors	Purchase		1,980		10/27/2011		13.95	Open Market
Wasatch Advisors	Purchase		10,000		11/3/2011		14.93	Open Market
Wasatch Advisors	Purchase		10,000		11/4/2011		14.79	Open Market
Wasatch Long/Short Fund	Purchase		81,540		11/9/2011		14.93	Open Market
Wasatch Long/Short Fund	Purchase		50,000		11/10/2011		14.68	Open Market
Wasatch Long/Short Fund	Purchase		12,080		11/11/2011		14.49	Open Market
Wasatch Long/Short Fund	Purchase		6,555		11/14/2011		14.56	Open Market
Wasatch Advisors	Purchase		5,669		11/15/2011		14.94	Open Market
Wasatch Long/Short Fund	Purchase		38,536		11/16/2011		15.15	Open Market
Wasatch Long/Short Fund	Purchase		22,829		11/17/2011		14.94	Open Market
Wasatch Long/Short Fund	Purchase		20,000		11/18/2011		14.67	Open Market
Wasatch Long/Short Fund	Purchase		50,000		12/15/2011		11.33	Open Market
Wasatch Long/Short Fund	Purchase		20,016		12/16/2011		10.79	Open Market
Wasatch Long/Short Fund	Purchase		39,984		12/19/2011		10.53	Open Market
Wasatch Long/Short Fund	Purchase		25,712		12/20/2011		11.13	Open Market
Wasatch Long/Short Fund	Purchase		14,288		12/21/2011		11.04	Open Market