<SEC-DOCUMENT>0001193125-26-196077-index.html : 20260430
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<ACCEPTANCE-DATETIME>20260430134200
ACCESSION NUMBER:		0001193125-26-196077
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20251231
FILED AS OF DATE:		20260430
DATE AS OF CHANGE:		20260430

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			First Seacoast Bancorp, Inc.
		CENTRAL INDEX KEY:			0001943802
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		ORGANIZATION NAME:           	02 Finance
		EIN:				920334805
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41597
		FILM NUMBER:		26922879

	BUSINESS ADDRESS:	
		STREET 1:		633 CENTRAL AVENUE
		CITY:			DOVER
		STATE:			NH
		ZIP:			03820
		BUSINESS PHONE:		603-742-4680

	MAIL ADDRESS:	
		STREET 1:		633 CENTRAL AVENUE
		CITY:			DOVER
		STATE:			NH
		ZIP:			03820
</SEC-HEADER>
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<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>fsea-20251231.htm
<DESCRIPTION>10-K/A
<TEXT>
Document 1 - file: fsea-20251231.htm
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</DOCUMENT> <DOCUMENT> <TYPE>EX-32.1 <SEQUENCE>4 <FILENAME>fsea-ex32_1.htm <DESCRIPTION>EX-32.1 <TEXT> Document 4 - file: fsea-ex32_1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-32.2 <SEQUENCE>5 <FILENAME>fsea-ex32_2.htm <DESCRIPTION>EX-32.2 <TEXT> Document 5 - file: fsea-ex32_2.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>6 <FILENAME>fsea-20251231.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT <TEXT> Document 6 - file: fsea-20251231.xsd
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Document 13 - RAW XML: FilingSummary.xml
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