    <SEC-DOCUMENT>0001193125-19-129723-index.html : 20190430
    <SEC-HEADER>0001193125-19-129723.hdr.sgml : 20190430
    <ACCEPTANCE-DATETIME>20190430171404
    ACCESSION NUMBER:		0001193125-19-129723
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		4
    CONFORMED PERIOD OF REPORT:	20190626
    FILED AS OF DATE:		20190430
    DATE AS OF CHANGE:		20190430
    EFFECTIVENESS DATE:		20190430

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ACADIA PHARMACEUTICALS INC
    		CENTRAL INDEX KEY:			0001070494
    		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
    		IRS NUMBER:				061376651
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-50768
    		FILM NUMBER:		19783120

    	BUSINESS ADDRESS:
    		STREET 1:		3611 VALLEY CENTRE DRIVE
    		STREET 2:		SUITE 300
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92130
    		BUSINESS PHONE:		858-558-2871

    	MAIL ADDRESS:
    		STREET 1:		3611 VALLEY CENTRE DRIVE
    		STREET 2:		SUITE 300
    		CITY:			SAN DIEGO
    		STATE:			CA
    		ZIP:			92130
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d664711ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d664711ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g664711dsp001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g664711dsp001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g664711dsp002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g664711dsp002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g664711g16y78.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g664711g16y78.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>