As filed with the Securities and Exchange Commission on June 26, 2024. Registration No. 333-280226 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO.1 TO FORM S-1 Delaware 2834 81-1567056 (I.R.S. Employer Identification Number) 2401 4th Avenue, Suite 1050 Seattle, Washington, 98121 (206) 838-0500 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporati ...

As filed with the Securities and Exchange Commission on June 14, 2024. THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial (Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent For Service) Copies to ...

As filed with the Securities and Exchange Commission on April 9, 2024. Registration No. 333-278103 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO.2 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) Delaware 2834 81-1567056 (I.R.S. Employer Identification N ...

As filed with the Securities and Exchange Commission on March 29, 2024. Registration No. 333-278103 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 AMENDMENT NO.1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Delaware 2834 81-1567056 (I.R.S. Employer Identification Number) 2401 4th Avenue, Sui ...

As filed with the Securities and Exchange Commission on March 20, 2024. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER (Primary Standard Industrial Delaware 2834 81-1567056 (I.R.S. Employer Identification Number) 2401 4th Avenue, Suite 1050 Seattle, Washington, 98121 (206) 838-0500 (Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant's Principal Executive Offices) Marvin L. White THE SECURI ...

As filed with the Securities and Exchange Commission on August 1, 2023 Registration No. 333- 273067 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Amendment No. 2 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 2834 81-1567056 (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) (I.R.S. Employer Identification ...

As filed with the Securities and Exchange Commission on July 14, 2023. Registration No. 333- 273067 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Amendment No. 1 to FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) Delaware 2834 81-1567056 (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) Sean M. Donahue Paul Hastings L ...

As filed with the Securities and Exchange Commission on June 30, 2023. Registration No. 333- UNDER THE SECURITIES ACT OF 1933 APTEVO THERAPEUTICS INC. (Exact Name of Registrant as Specified in Its Charter) (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) Delaware 2834 81-1567056 (I.R.S. Employer Identification Number) 2401 4th Avenue, Suite 1050 Seattle, Washington, 98121 (206) 838-0500 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WA ...