STATE BANK FINANCIAL CORPORATION SHAREHOLDER ALERT: Rigrodsky & Long, P.A. Announces Investigation of Merger

Rigrodsky & Long, P.A.:

• Do you own shares of State Bank Financial Corporation (NASDAQ CM: STBZ)?
• Did you purchase any of your shares prior to May 13, 2018?
• Do you think the proposed merger is fair?
• Do you want to discuss your rights?

Rigrodsky & Long, P.A. announces that it is investigating potential legal claims against the board of directors of State Bank Financial Corporation ("State Bank" or the "Company") (NASDAQ CM: STBZ) regarding possible breaches of fiduciary duties and other violations of law related to the Company's entry into an agreement to merge with Cadence Bancorporation ("Cadence") CADE in a transaction valued at approximately $1.4 billion. Under the terms of the agreement, shareholders of State Bank will receive 1.160 shares of Cadence for each share of State Bank common stock. After closing, legacy Cadence and State Bank shareholders will collectively own approximately 65% and 35% of the combined company, respectively.

If you own common stock of State Bank and purchased any shares before May 13, 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.

Rigrodsky & 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.

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