Form 3 Filing for Mary Janatpour

This filing reports that Mary Janatpour, SVP, CSO of Aptevo Therapeutics Inc., has granted power of attorney to SoYoung Kwon and Daphne Taylor. This authorization allows the attorneys-in-fact to execute Forms 3, 4, and 5, and other necessary reports related to the ownership, acquisition, or disposition of the company's securities, on behalf of Ms. Janatpour. The power of attorney is effective until revoked in writing and confirms that the attorneys-in-fact are not assuming Ms. Janatpour's compliance responsibilities under Section 13 and 16 of the Securities Exchange Act of 1934. The filing also indicates that Ms. Janatpour directly owns 0 shares of common stock following the transaction.