Corporate Event: Frontier Financial Corporation ("FTBK") - Effective Tuesday, November 24, 2009

Frontier Financial Corporation (“FTBK”) has announced a 1-for-10 reverse stock split. As a result of the reverse stock split, each FTBK Share will be converted into the right to

receive .10 (New) Frontier Financial Corporation Common Shares. The reverse stock split will become effective prior to the open of business on November 25, 2009.

This action will be coordinated with the Options Clearing Corporation.

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