<SEC-DOCUMENT>0001104659-25-061182-index.html : 20250620
<SEC-HEADER>0001104659-25-061182.hdr.sgml : 20250620
<ACCEPTANCE-DATETIME>20250620162811
ACCESSION NUMBER:		0001104659-25-061182
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20250620
DATE AS OF CHANGE:		20250620

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Theriva Biologics, Inc.
		CENTRAL INDEX KEY:			0000894158
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				133808303
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-279077
		FILM NUMBER:		251061789

	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>tm2518361d1_424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: tm2518361d1_424b5.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>tm2518361d1_424b5img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: tm2518361d1_424b5img001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>tm2518361d1_424b5img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: tm2518361d1_424b5img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2518361d1_424b5img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2518361d1_424b5img003.jpg

</DOCUMENT>
</SEC-DOCUMENT>