<SEC-DOCUMENT>0001193125-26-201758-index.html : 20260501
<SEC-HEADER>0001193125-26-201758.hdr.sgml : 20260501
<ACCEPTANCE-DATETIME>20260501173107
ACCESSION NUMBER:		0001193125-26-201758
CONFORMED SUBMISSION TYPE:	424B4
PUBLIC DOCUMENT COUNT:		19
FILED AS OF DATE:		20260501
DATE AS OF CHANGE:		20260501

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Seaport Therapeutics, Inc.
		CENTRAL INDEX KEY:			0002042347
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				992235719
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B4
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-294976
		FILM NUMBER:		26933946

	BUSINESS ADDRESS:	
		STREET 1:		6 TIDE STREET
		STREET 2:		SUITE 400
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
		BUSINESS PHONE:		617-807-4062

	MAIL ADDRESS:	
		STREET 1:		6 TIDE STREET
		STREET 2:		SUITE 400
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02110
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B4
<SEQUENCE>1
<FILENAME>d73463d424b4.htm
<DESCRIPTION>424B4
<TEXT>
Document 1 - file: d73463d424b4.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g73463g00a03.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: g73463g00a03.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g73463g00n44.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g73463g00n44.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g73463g01f03.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g73463g01f03.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g73463g01f04.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g73463g01f04.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g73463g01f05.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g73463g01f05.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g73463g01f06.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g73463g01f06.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g73463g01f07.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g73463g01f07.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g73463g01f08.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g73463g01f08.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>g73463g01k38.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: g73463g01k38.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>g73463g01n38.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: g73463g01n38.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>g73463g01n39.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: g73463g01n39.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>g73463g02n39.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: g73463g02n39.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>g73463g04c52.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: g73463g04c52.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>g73463g13a34.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: g73463g13a34.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>g73463g14k41.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: g73463g14k41.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>g73463g14k43.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: g73463g14k43.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>g73463g32a32.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 18 - file: g73463g32a32.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>g73463g48a48.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 19 - file: g73463g48a48.jpg
</DOCUMENT> </SEC-DOCUMENT>