X0202 4 2007-04-02 0001212545 WESTERN ALLIANCE BANCORPORATION WAL 0000940434 BOYD WILLIAM S C/O WESTERN ALLIANCE BANCORPORATION 2700 WEST SAHARA AVENUE LAS VEGAS NV 89102 1 0 0 0 Common Stock 2007-04-02 4 A 0 17917 A 18017 D Common Stock 759321 I By William S. Boyd Trust Acquired pursuant to merger agreement between Western Alliance Bancorporation (WAL) and First Independent Capital of Nevada (FICN) in exchange for 6,300 shares of FICN common stock. On the effective date of the merger, the closing price of WAL's common stock was $31.04. /s/ Dale Gibbons, Attorney-in-Fact 2007-04-16