<SEC-DOCUMENT>0001104659-22-124559-index.html : 20221205 <SEC-HEADER>0001104659-22-124559.hdr.sgml : 20221205 <ACCEPTANCE-DATETIME>20221205160530 ACCESSION NUMBER: 0001104659-22-124559 CONFORMED SUBMISSION TYPE: 424B5 PUBLIC DOCUMENT COUNT: 4 FILED AS OF DATE: 20221205 DATE AS OF CHANGE: 20221205 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Theriva Biologics, Inc. CENTRAL INDEX KEY: 0000894158 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] IRS NUMBER: 133808303 STATE OF INCORPORATION: NV FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 424B5 SEC ACT: 1933 Act SEC FILE NUMBER: 333-255726 FILM NUMBER: 221444966 BUSINESS ADDRESS: STREET 1: 9605 MEDICAL CENTER DRIVE STREET 2: SUITE 270 CITY: ROCKVILLE STATE: MD ZIP: 20850 BUSINESS PHONE: (734) 332-7800 MAIL ADDRESS: STREET 1: 9605 MEDICAL CENTER DRIVE STREET 2: SUITE 270 CITY: ROCKVILLE STATE: MD ZIP: 20850 FORMER COMPANY: FORMER CONFORMED NAME: Synthetic Biologics, Inc. DATE OF NAME CHANGE: 20120305 FORMER COMPANY: FORMER CONFORMED NAME: ADEONA PHARMACEUTICALS, INC. DATE OF NAME CHANGE: 20081027 FORMER COMPANY: FORMER CONFORMED NAME: PIPEX PHARMACEUTICALS, INC. DATE OF NAME CHANGE: 20061214 </SEC-HEADER> <DOCUMENT> <TYPE>424B5 <SEQUENCE>1 <FILENAME>tm2231804d1_424b5.htm <DESCRIPTION>424B5 <TEXT> Document 1 - file: tm2231804d1_424b5.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>tm2231804d1_424b5img001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: tm2231804d1_424b5img001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>tm2231804d1_424b5img002.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: tm2231804d1_424b5img002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>tm2231804d1_424b5img004.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: tm2231804d1_424b5img004.jpg
</DOCUMENT> </SEC-DOCUMENT>