 MINNEAPOLIS, Dec. 01, 2020 GLOBE NEWSWIRE -- Sun BioPharma, Inc. Nasdaq: SNBP, a clinical stage biopharmaceutical company developing disruptive therapeutics for the treatment of patients with cancer, has announced the change of its corporate name to Panbela Therapeutics, Inc. effective December 2, 2020. The Companys trading symbol will also change from SNBP to PBLA at the opening of the markets on December 2, 2020. As a result of the change, the CUSIP number for the companys common stock will also change to 69833Q100. Stockholders are not required to exchange their existing share certificates or warrants for new certificates or warrants bearing the new name. The name change does not affect the companys capital structure or the rights of the companys stockholders, and no action is required by existing stockholders. 