KAISER ALUMINUM CORP — Director's Dealing 2015

Mar 9, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: KAISER ALUMINUM CORP (KALU)
CIK: 0000811596
Period of Report: 2015-03-05

Reporting Person: ELLSWORTH MELINDA C (VP & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-03-05	Common Stock, par value $0.01 per share	A	1002	$0.00	Acquired	4587	Direct
2015-03-05	Common Stock, par value $0.01 per share	A	851	$0.00	Acquired	5438	Direct
2015-03-05	Common Stock, par value $0.01 per share	F	373	$75.41	Disposed	5065	Direct
2015-03-05	Common Stock, par value $0.01 per share	F	536	$75.41	Disposed	4529	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.01 per share	4574	Indirect

Footnotes

F1: Grant to the reporting person effective as of March 5, 2015, of restricted stock under the Kaiser Aluminum Corporation Amended and Restated 2006 Equity and Performance Incentive Plan. All restrictions will lapse on March 5, 2018 or earlier upon the occurrence of certain specified circumstances.

F2: Shares earned upon the vesting on March 5, 2015 of certain performance shares granted to the reporting person in 2012 under the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan, as amended. On March 5, 2015, 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 2012 through 2014.

F3: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2015 of the above-referenced performance shares.

F4: Shares withheld to satisfy the withholding tax obligations resulting from the vesting on March 5, 2015 of certain shares granted to the reporting person in 2012 under the Kaiser Aluminum Corporation 2006 Equity and Performance Incentive Plan, as amended.