When was the acquisition of Pacific Premier Bancorp, Inc. by Columbia Banking System, Inc. Completed?
The acquisition was completed on August 31, 2025, and at the effective time, each share of Pacific Premier Bancorp, Inc. (“PPBI” or “Pacific Premier”) common stock was converted into the right to receive 0.9150 of a share of Columbia Banking System, Inc. (“COLB” or “Columbia”) common stock, with PPBI stockholders receiving cash in lieu of fractional shares. Shares of PPBI ceased trading before the opening of the Nasdaq stock market (“Nasdaq”) on September 2, 2025. The cash in lieu of fractional shares will be paid in the form of a check that will be mailed shortly after PPBI shares have been converted into COLB shares.
I owned COLB shares when the acquisition was completed. Do I need to exchange my shares?
No. Historical COLB shareholders do not need to exchange their shares as Columbia Banking System, Inc. is the acquiror in the transaction, and it continues to trade under the “COLB” ticker on Nasdaq.
I was a PPBI stockholder, but I do not own any physical certificates. Do I need to do anything to exchange my shares into COLB?
If your PPBI shares were in book-entry only (i.e., held electronically) and you did not own any physical stock certificates, your shares will be automatically exchanged into COLB shares. You will receive a statement showing your new COLB shares after the exchange. Any additional questions related to this process should be directed to:
For stockholders who hold shares through a broker (a.k.a., beneficial owners):
Please contact your broker directly.
For stockholders who hold shares registered in their own names:
Please contact our Exchange Agent, Broadridge Corporate Issuer Solutions, LLC, at shareholder@broadridge.com or (866) 232-0399.
How do I exchange my physical PPBI certificates?
If your PPBI shares are in certificated form (or you hold a combination of certificates and book-entry form), you will need to return your stock certificates and a completed Letter of Transmittal to our Exchange Agent, Broadridge Corporate Issuer Solutions, LLC, for your PPBI shares to be exchanged into COLB shares. After the exchange, you will receive a statement showing your new COLB shares. Broadridge will mail a Letter of Transmittal and associated instructions to you within approximately four business days of September 2, 2025. Any additional questions related to this process should be directed to Broadridge at shareholder@broadridge.com or (866) 232-0399.
I cannot find my PPBI stock certificate. How can I exchange my shares?
If you are unable to locate your physical stock certificate(s), please write or call our Exchange Agent, Broadridge Corporate Issuer Solutions, LLC (see “How do I contact Broadridge Corporate Issuer Solutions, LLC?” response above for phone and address information). Broadridge will inform you of your necessary next steps.
My PPBI cash dividends were paid via direct deposit; do I need to re-sign up for direct deposit for my COLB shares?
For shareholders who hold shares through a broker (a.k.a., beneficial owners):
Please contact your broker directly.
For shareholders who hold shares registered in their own names:
Yes, please contact Columbia’s transfer agent, Broadridge Corporate Issuer Solutions, LLC, at shareholder@broadridge.com or (866) 232-0399.