UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended June 30, 2019 Commission File Number: 1-13441 HEMISPHERX BIOPHARMA, INC. (Exact name of registrant as specified in its charter) | --- | --- | |---------------------------------------------------------------------------------------------------------|------------------------------------------| | (State or other ...