X0206 3 2023-03-03 0 0001671584 Aptevo Therapeutics Inc. APVO 0001393549 Taylor Daphne C/O APTEVO THERAPEUTICS INC. 2401 4TH AVENUE, SUITE 1050 SEATTLE WA 98121 0 1 0 0 SVP, CFO Common Stock 3840 D Restricted Stock Unit Common Stock 792 D Restricted Stock Unit Common Stock 4750 D Restricted Stock Unit Common Stock 13889 D Stock Option (right to buy) 6.97 2030-02-18 Common Stock 2400 D Stock Option (right to buy) 8.56 2030-07-27 Common Stock 514 D Stock Option (right to buy) 8.56 2030-07-27 Common Stock 514 D Stock Option (right to buy) 8.56 2030-07-27 Common Stock 516 D Stock Option (right to buy) 8.56 2030-07-27 Common Stock 839 D Stock Option (right to buy) 33.50 2031-01-29 Common Stock 7125 D Stock Option (right to buy) 5.30 2032-03-04 Common Stock 4750 D The Restricted Stock Units ("RSUs") vest in three approximately equal annual installments beginning on January 29, 2022. The RSUs were granted on January 29, 2021. As of the date of this filing, all but 792 shares had vested. Restricted Stock Units ("RSUs") convert into common stock, $0.001 par value per share, of the Issuer on a one-for-one basis. The RSUs vest in three approximately equal annual installments beginning on March 4, 2023. The RSUs were granted on June 7, 2022. The RSUs vest in two approximately equal annual installments beginning the day immediately prior to the annual anniversary of the grant date. The RSUs were granted on August 9, 2022. The option vests in three approximately equal annual installments beginning on February 18, 2021. The option was granted on February 18, 2020. The option vests in three approximately equal annual installments beginning on July 27, 2021. The option was granted on July 27, 2020. The option vests in three approximately equal annual installments beginning on January 29, 2022. The option was granted on January 29, 2021. The option vests in three approximately equal annual installments beginning on March 4, 2023. The option was granted on March 4, 2022. /s/ SoYoung Kwon, Attorney-in-Fact 2023-03-07