<SEC-DOCUMENT>0001193125-21-205174-index.html : 20210630
<SEC-HEADER>0001193125-21-205174.hdr.sgml : 20210630
<ACCEPTANCE-DATETIME>20210630201824
ACCESSION NUMBER:		0001193125-21-205174
CONFORMED SUBMISSION TYPE:	S-1MEF
PUBLIC DOCUMENT COUNT:		4
<REFERENCE-462B>333-256945
FILED AS OF DATE:		20210630
DATE AS OF CHANGE:		20210630
EFFECTIVENESS DATE:		20210630

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Acumen Pharmaceuticals, Inc.
		CENTRAL INDEX KEY:			0001576885
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				364108129
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1MEF
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-257587
		FILM NUMBER:		211063550

	BUSINESS ADDRESS:	
		STREET 1:		4435 NORTH FIRST STREET, SUITE 360
		CITY:			LIVERMORE
		STATE:			CA
		ZIP:			94551
		BUSINESS PHONE:		925-368-8508

	MAIL ADDRESS:	
		STREET 1:		4435 NORTH FIRST STREET, SUITE 360
		CITY:			LIVERMORE
		STATE:			CA
		ZIP:			94551
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1MEF
<SEQUENCE>1
<FILENAME>d10092ds1mef.htm
<DESCRIPTION>S-1MEF
<TEXT>
Document 1 - file: d10092ds1mef.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d10092dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d10092dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d10092dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: d10092dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g10092dsp1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g10092dsp1.jpg

</DOCUMENT>
</SEC-DOCUMENT>