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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
811596	Kaiser Aluminum Corp	KALU	Rolling Drawing & Extruding Of Nonferrous Metals (3350)	943030279

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1227285	A Jack Hockema	C/O Kaiser Aluminum Corp. 27422 Portola Parkway Suite 200 Foothill Ranch CA 92610	Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Employee Stock Options (Right To Buy)	Acquisiton	2016-05-04	8,037	$80.01	41,406	No	4	M	Direct
Employee Stock Options (Right To Buy)	Disposition	2016-05-04	8,037	$90.70	33,369	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock, Par Value $0.01 Per Share	Employee Stock Options (Right to Buy)	Disposition	2016-05-04	8,037	$0.00	8,037	$80.01

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2017-04-03	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock, Par Value $0.01 Per Share	84,380	Indirect	By Hockema Family Trust

Footnotes

The acquisition of 10,830 shares was inadvertently reported as a grant of restricted stock on the reporting person's prior Form 4. Such shares were acquired pursuant to a grant of restricted stock units. These restricted stock units have the same vesting terms as previously reported
Stock option award granted on April 3, 2007 for 8,037 shares of common stock, with one-third of such options vested on each of the first, second and third anniversaries of the grant date.