X0306 4 2014-03-05 0 0000811596 KAISER ALUMINUM CORP KALU 0001330319 West Neal E C/O KAISER ALUMINUM CORP. 27422 PORTOLA PARKWAY SUITE 200 FOOTHILL RANCH CA 92610 0 1 0 0 VP & Chief Accounting Officer Common Stock, par value $0.01 per share 2014-03-05 4 A 0 1183 0.00 A 5577 D Common Stock, par value $0.01 per share 2014-03-05 4 A 0 829 0.00 A 6406 D Common Stock, par value $0.01 per share 2014-03-05 4 F 0 363 71.88 D 6043 D Common Stock, par value $0.01 per share 2014-03-05 4 F 0 560 71.88 D 5483 D Common Stock, par value $0.01 per share 2341 I By West Family Trust Grant to the reporting person effective as of March 5, 2014, of restricted stock under the Kaiser Aluminum Corporation Amended and Restated 2006 Equity and Performance Incentive Plan. All restrictions will lapse on March 5, 2017 or earlier upon the occurrence of certain specified circumstances. Shares earned upon the vesting on March 5, 2014 of certain performance shares granted to the reporting person in 2011 under the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan, as amended. On March 5, 2014, the Registrant's compensation committee certified the performance shares payout multiplier based on the level of achievement by the Registrant of a certain pre-established performance goal for 2011 through 2013. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2014 of the above-referenced performance shares. Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2014 of certain shares granted to the reporting person in 2011 under the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan, as amended. /s/ Cherrie I. Tsai, with power of attorney for Neal E. West 2014-03-07