Notes: Nov. 06, 2019 -- SELLAS Life Sciences Group, Inc. (Nasdaq: SLS) (“SELLAS” or the “Company”), a clinical-stage biopharmaceutical company focused on the development of novel cancer immunotherapies for a broad range of cancer indications, today announced that it filed a certificate of amendment to its amended and restated certificate of incorporation with the Secretary of State of the State of Delaware to effect a 1-for-50 reverse stock split of its common stock. The shares underlying the Company’s outstanding options and warrants will also be adjusted accordingly. The reverse split will take effect at 5:00 pm Eastern Time on November 7, 2019 and the Company’s common stock will open for trading on The Nasdaq Capital Market on November 8, 2019 on a post-split basis. Trading of the Company’s common stock on The Nasdaq Capital Market will continue, on a split-adjusted basis, with the opening of the markets on Friday, November 8, 2019, under the existing ticker symbol “SLS” but with a new CUSIP number 81642T209. The reverse stock split reduces the number of shares of the Company’s common stock outstanding from approximately 228 million pre-reverse split shares to approximately 4.6 million post-reverse split shares. _______________ Dec. 29, 2017 -- SELLAS Life Sciences Group, Inc. (Nasdaq:SLS) (SELLAS Inc.) today announced that the proposed merger of the businesses of SELLAS Life Sciences Group Ltd. (SELLAS Ltd.) and Galena Biopharma, Inc. (Galena) has closed effective today, December 29, 2017, following approval by Galena’s stockholders. Upon completion of the merger, Galena was renamed SELLAS Life Sciences Group, Inc. In connection with and prior to the closing of the merger, Galena effected a 1-for-30 reverse stock split of its common stock. As a result of the reverse stock split, every 30 shares of Galena common stock issued and outstanding or held by Galena in treasury immediately prior to the effective time of the reverse stock split was automatically reclassified into one fully paid and nonassessable share of Galena common stock.