X0306 4 2013-11-12 0001316625 Silicon Graphics International Corp SGI 0001385162 Titinger Jorge C/O SGI 46600 LANDING PARKWAY FREMONT CA 94538 1 1 President & CEO Common Stock 2013-11-12 4 M 0 4781 0 A 7447 D Common Stock 2013-11-12 4 F 0 2494 12.19 D 4953 D Restricted Stock Units 2013-11-12 4 M 0 4781 0 A 2013-11-12 Common Stock 4781 275136 D Upon vesting, each restricted stock unit was converted into an equivalent number of shares of the Company's common stock. Shares beneficially owned reflect 1,333 shares purchased through the Employee Stock Purchase Program on 8/14/2013, reflecting an additional 1,041 shares to the 292 shares reported on the Form 4 Statement of Beneficial Ownership filed on 8/29/2013. These shares were retained by the Company in order to meet the tax withholding obligations of the award holder in connection with the vesting of an installment of the restricted stock units. The amount retained by the Company was not in excess of the amount of the tax liability. Each restricted stock unit represents a contingent right to receive one share of Common Stock. Restricted Stock Units have no expiration date. /s/ Jennifer Pratt as Attorney-in-Fact for Jorge Titinger 2013-11-13