SCHEDULE 13G 0001288478 XXXXXXXX LIVE Common Stock, $0.001 par value 06/18/2025 0001671584 Aptevo Therapeutics Inc. 03835L306 2401 4TH AVE. SUITE 1050 SEATTLE WA 98121 Rule 13d-1(c) BIGGER CAPITAL FUND L P a DE 0.00 285000.00 0.00 285000.00 285000.00 N 9.95 PN Bigger Capital Fund GP, LLC a DE 0.00 285000.00 0.00 285000.00 285000.00 N 9.95 OO Bigger Michael a X1 0.00 285000.00 0.00 285000.00 285000.00 N 9.95 IN Aptevo Therapeutics Inc. 2401 4th Avenue, Suite 1050, Seattle, WA 98121 Bigger Capital Fund, LP ("Bigger Capital") Bigger Capital Fund GP, LLC ("Bigger GP") Michael Bigger Each of the foregoing is referred to as a "Reporting Person" and collectively as the "Reporting Persons." Bigger Capital Fund, LP 11700 W Charleston Blvd. 170-659 Las Vegas, NV 89135 Bigger Capital Fund GP, LLC 11700 W Charleston Blvd. 170-659 Las Vegas, NV 89135 Michael Bigger 11700 W Charleston Blvd. 170-659 Las Vegas, NV 89135 Bigger Capital Fund, LP Delaware Bigger Capital Fund GP, LLC Delaware Michael Bigger USA Y As of June 18, 2025, Bigger Capital beneficially owned 285,000 shares of Common Stock. The amount does not include: (i) 12,875 shares of Common Stock issuable upon exercise of Pre-Funded Warrants, which were subject to a 9.99% beneficial ownership limitation, and (ii) 1,532,364 shares of Common Stock issuable upon exercise of Common Warrants, the exercise of which are subject to a 4.99% beneficial ownership limitation (1,489,375 shares of which are subject to shareholder approval). Bigger GP, as the general partner of Bigger Capital, may be deemed to beneficially own the Issuer's securities described herein. Mr. Bigger, as the managing member of Bigger GP, the general partner of Bigger Capital, may be deemed to beneficially own the 285,000 shares of Common Stock beneficially owned by Bigger Capital. Does not include: (i) 12,875 shares of Common Stock issuable upon exercise of Pre-Funded Warrants, which were subject to a 9.99% beneficial ownership limitation, and (ii) 1,532,364 shares of Common Stock issuable upon exercise of Common Warrants, the exercise of which are subject to a 4.99% beneficial ownership limitation (1,489,375 shares of which are subject to shareholder approval). The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of any shares of Common Stock owned by another Reporting Person or any other person. Each of Bigger GP and Mr. Bigger disclaims beneficial ownership of the shares of Common Stock beneficially owned by Bigger Capital. The filing of this statement shall not be construed as an admission that any such person or entity is the beneficial owner of any such securities. The following percentages are based on 2,864,156 shares of Common Stock outstanding immediately after the offering (assuming no exercise of the Pre-Funded Warrants nor exercise of the Common Warrants), based upon the Issuer's Prospectus filed under Rule 424(b)(4) with the Securities and Exchange Commission on June 20, 2025. As of June 18, 2025, (i) each of Bigger Capital and Bigger GP may be deemed to beneficially own 9.95% of the outstanding shares of Common Stock, and (ii) Mr. Bigger may be deemed to beneficially own approximately 9.95% of the outstanding shares of Common Stock. Does not include: (i) 12,875 shares of Common Stock issuable upon exercise of Pre-Funded Warrants, which were subject to a 9.99% beneficial ownership limitation, and (ii) 1,532,364 shares of Common Stock issuable upon exercise of Common Warrants, the exercise of which are subject to a 4.99% beneficial ownership limitation (1,489,375 shares of which are subject to shareholder approval). As of the close of business on June 20, 2025, the Reporting Persons sold the Common Stock, including the shares of Common Stock issuable upon exercise of Pre-Funded Warrants, and accordingly, the Reporting Persons as of June 20, 2025, are not the beneficial owners of at least 5.00% of theIssuer's Common Stock. 1,489,375 shares of Common Stock issuable upon exercise of Common Warrants are not exercisable as of the date hereof and are subject to shareholder approval and a 4.99% beneficial ownership limitation. See Cover Pages Items 5-9. See Cover Pages Items 5-9. See Cover Pages Items 5-9. See Cover Pages Items 5-9. N Y Y Y N See Exhibit 99.1. Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. 99.1 - Joint Filing Agreement BIGGER CAPITAL FUND L P /s/ Michael Bigger 06/25/2025 Bigger Capital Fund GP, LLC /s/ Michael Bigger 06/25/2025 Bigger Michael /s/ Michael Bigger 06/25/2025