<SEC-DOCUMENT>0000934549-18-000047-index.html : 20180521
<SEC-HEADER>0000934549-18-000047.hdr.sgml : 20180521
<ACCEPTANCE-DATETIME>20180521122607
ACCESSION NUMBER:		0000934549-18-000047
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20180521
DATE AS OF CHANGE:		20180521
EFFECTIVENESS DATE:		20180521

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:		18848893

	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>stockholderletter5-21x18.htm
<DESCRIPTION>LETTER_5-21-18
<TEXT>
Document 1 - file: stockholderletter5-21x18.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>acaciaa01.jpg
<TEXT>
Document 2 - file: acaciaa01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>georgesona01.jpg
<TEXT>
Document 3 - file: georgesona01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>mackenziea01.jpg
<TEXT>
Document 4 - file: mackenziea01.jpg

</DOCUMENT>
</SEC-DOCUMENT>