COBIZ FINANCIAL INC. SHAREHOLDER ALERT: Rigrodsky & Long, P.A. Announces Investigation of Merger

Rigrodsky & Long, P.A.:

& Long, P.A. announces that it is investigating potential legal
claims against the board of directors of CoBiz Financial Inc. (“CoBiz”
or the “Company”) (NASDAQ GS: COBZ)
regarding possible breaches of fiduciary duties and other violations of
law related to the Company’s entry into an agreement to merge with BOK
Financial Corporation (“BOK Financial”) (NASDAQ GS: BOKF)
in a transaction valued at approximately $1.0 billion. Under the terms
of the agreement, shareholders of CoBiz will receive 0.17 shares of BOK
Financial common stock and $5.70 in cash for each share of CoBiz common

If you own common stock of CoBiz and purchased any shares before June
18, 2018, if you would like to learn more about this investigation, or
if you have any questions concerning this announcement or your rights or
interests, please contact Seth D. Rigrodsky or Gina M. Serra at
Rigrodsky & Long, P.A., 300 Delaware Avenue, Suite 1220, Wilmington,
Delaware 19801, by telephone at (888) 969-4242, or by e-mail at info@rl-legal.com.

& Long, P.A., with offices in Wilmington, Delaware, Garden City,
New York, and San Francisco, California, has recovered hundreds of
millions of dollars on behalf of investors and achieved substantial
corporate governance reforms in numerous cases nationwide, including federal
securities fraud actions, shareholder class actions, and shareholder
derivative actions.

Attorney advertising. Prior results do not guarantee a similar outcome.

View source version on businesswire.com: https://www.businesswire.com/news/home/20180618006132/en/