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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1212545	Western Alliance Bancorporation	WAL	State Commercial Banks (6022)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1331626	Dale Gibbons	C/O Western Alliance Bancorporation One E. Washington Street Phoenix AZ 85004	Evp, Chief Financial Officer	No	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
Common Stock	Disposition	2013-03-07	45,000	$13.84	83,942	No	4	S	Direct
Common Stock	Acquisiton	2013-03-08	15,000	$7.03	98,942	No	4	M	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (right to buy)	Disposition	2013-03-08	15,000	$0.00	15,000	$7.03

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2008-05-29	2013-05-29	No	4	M	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	3,613	Indirect	401K Plan

Footnotes

Reflects shares held in the 401K Plan to include employer match as of 2/22/13.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $13.80 to $13.91, inclusive. The reporting person undertakes to provide to Western Alliance Bancorporation, any security holder of Western Alliance Bancorporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this range.