UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37746 | --- | --- | --- | |------------------------------------------------------------------------------------------------------ ...

th | --- | --- | --- | |-----------------------------------------------------------------------------|------------------|-----------------------------------------------------------------------| | | | | | Securities registered pursuant to Section 12(b) of the Act: | | | | Title of Each Class | Trading Symbol | Name of Exchange on Which Registered | | Common Stock, $0.001 par value per share | APVO | The Nasdaq Stock Market LLC (The Nasdaq Capital Market) | UNITED STATES SECURITIES AND EXCHANGE COMMISSION Was ...