    <SEC-DOCUMENT>0000934549-18-000053-index.html : 20180525
    <SEC-HEADER>0000934549-18-000053.hdr.sgml : 20180525
    <ACCEPTANCE-DATETIME>20180525162352
    ACCESSION NUMBER:		0000934549-18-000053
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		23
    FILED AS OF DATE:		20180525
    DATE AS OF CHANGE:		20180525
    EFFECTIVENESS DATE:		20180525

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ACACIA RESEARCH CORP
    		CENTRAL INDEX KEY:			0000934549
    		STANDARD INDUSTRIAL CLASSIFICATION:	PATENT OWNERS & LESSORS [6794]
    		IRS NUMBER:				954405754
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-37721
    		FILM NUMBER:		18861842

    	BUSINESS ADDRESS:
    		STREET 1:		520 NEWPORT CENTER DRIVE
    		STREET 2:		12TH FLOOR
    		CITY:			NEWPORT BEACH
    		STATE:			CA
    		ZIP:			92660
    		BUSINESS PHONE:		9494808300

    	MAIL ADDRESS:
    		STREET 1:		520 NEWPORT CENTER DRIVE
    		STREET 2:		12TH FLOOR
    		CITY:			NEWPORT BEACH
    		STATE:			CA
    		ZIP:			92660
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>a052518defa14a.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: a052518defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>website1.jpg
    <TEXT>
    Document 2 - file: website1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>website2.jpg
    <TEXT>
    Document 3 - file: website2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>website3a01.jpg
    <TEXT>
    Document 4 - file: website3a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>website4a01.jpg
    <TEXT>
    Document 5 - file: website4a01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>website5.jpg
    <TEXT>
    Document 6 - file: website5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>website6.jpg
    <TEXT>
    Document 7 - file: website6.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>website7.jpg
    <TEXT>
    Document 8 - file: website7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>website8.jpg
    <TEXT>
    Document 9 - file: website8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>website9.jpg
    <TEXT>
    Document 10 - file: website9.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>website10.jpg
    <TEXT>
    Document 11 - file: website10.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>website11.jpg
    <TEXT>
    Document 12 - file: website11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>website12.jpg
    <TEXT>
    Document 13 - file: website12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>website13.jpg
    <TEXT>
    Document 14 - file: website13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>websitea.jpg
    <TEXT>
    Document 15 - file: websitea.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>websiteb.jpg
    <TEXT>
    Document 16 - file: websiteb.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>websitec.jpg
    <TEXT>
    Document 17 - file: websitec.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>websited.jpg
    <TEXT>
    Document 18 - file: websited.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>websitee.jpg
    <TEXT>
    Document 19 - file: websitee.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>websitef.jpg
    <TEXT>
    Document 20 - file: websitef.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>websiteg.jpg
    <TEXT>
    Document 21 - file: websiteg.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>websiteh.jpg
    <TEXT>
    Document 22 - file: websiteh.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>websitei.jpg
    <TEXT>
    Document 23 - file: websitei.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>