<SEC-DOCUMENT>0001193125-25-103782-index.html : 20250429
<SEC-HEADER>0001193125-25-103782.hdr.sgml : 20250429
<ACCEPTANCE-DATETIME>20250429160835
ACCESSION NUMBER:		0001193125-25-103782
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20250429
DATE AS OF CHANGE:		20250429

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Septerna, Inc.
		CENTRAL INDEX KEY:			0001984086
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				843891440
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42382
		FILM NUMBER:		25887448

	BUSINESS ADDRESS:	
		STREET 1:		250 EAST GRAND AVENUE, SUITE 65
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		650-338-3533

	MAIL ADDRESS:	
		STREET 1:		250 EAST GRAND AVENUE, SUITE 65
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>d713134ddefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: d713134ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g713134g01g01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g713134g01g01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g713134g02g02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g713134g02g02.jpg

</DOCUMENT>
</SEC-DOCUMENT>