<SEC-DOCUMENT>0001564590-19-041036-index.html : 20191106
<SEC-HEADER>0001564590-19-041036.hdr.sgml : 20191106
<ACCEPTANCE-DATETIME>20191106161553
ACCESSION NUMBER:		0001564590-19-041036
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		43
CONFORMED PERIOD OF REPORT:	20191106
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20191106
DATE AS OF CHANGE:		20191106

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ARCA biopharma, Inc.
		CENTRAL INDEX KEY:			0000907654
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				363855489
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22873
		FILM NUMBER:		191196484

	BUSINESS ADDRESS:	
		STREET 1:		11080 CIRCLEPOINT ROAD
		STREET 2:		SUITE 140
		CITY:			WESTMINSTER
		STATE:			CO
		ZIP:			80020
		BUSINESS PHONE:		720-940-2200

	MAIL ADDRESS:	
		STREET 1:		11080 CIRCLEPOINT ROAD
		STREET 2:		SUITE 140
		CITY:			WESTMINSTER
		STATE:			CO
		ZIP:			80020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUVELO INC
		DATE OF NAME CHANGE:	20030203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HYSEQ INC
		DATE OF NAME CHANGE:	19970610
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
<FILENAME>abio-8k_20191106.htm
<DESCRIPTION>8-K
<TEXT>
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</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>abio-ex991_6.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: abio-ex991_6.htm
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