X0306 4 2016-10-24 0001316625 Silicon Graphics International Corp SGI 0001567277 Conceicao Cassio C/O SGI 900 N. MCCARTHY BOULEVARD MILPITAS CA 95035 1 EVP, Chief Operating Officer Common Stock 2016-10-24 4 M 0 3437 0 A 120412 D Common Stock 2016-10-24 4 F 0 1291 7.70 D 119121 D Restricted Stock Units 2016-10-24 4 M 0 3437 0 D 2016-10-24 Common Stock 3437 125188 D Upon vesting, each restricted stock unit was converted into an equivalent number of shares of the Company's common stock. 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/ Kirk O. Williams as Attorney in Fact for Cassio Conceicao 2016-10-26