Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the Registration Statement (Form S-8), pertaining to the 2016 Stock Incentive Plan of Aptevo Therapeutics Inc. of our report dated March 31, 2017, with respect to the consolidated financial statements of Aptevo Therapeutics Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2016, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
Seattle, Washington
August 10, 2017
