FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * GRAZIADIO G LOUIS III   2. Issuer Name and Ticker or Trading Symbol ACACIA RESEARCH CORP [ACTG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 520 NEWPORT CENTER DR., 12TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 03/14/2018 (Street) NEWPORT BEACH, CA 92660 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 03/14/2018   P   7,000 A $ 3.631 (1) 605,051 D   Common Stock 03/14/2018   P   10,600 A $ 3.631 (1) 354,500 I Graziadio Family Trust dtd 11/13/75 (2) Common Stock               15,000 I The George & Reva Graziadio Charitable Lead Annuity Trust (3) Common Stock               21,000 I Marianna R. Graziadio (minor children) (4) Common Stock               21,000 I George L. Graziadio IV (minor children) (5) Common Stock               20,000 I George and Reva Graziadio Foundation (6) Common Stock               5,000 I Owned by spouse

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
GRAZIADIO G LOUIS III 520 NEWPORT CENTER DR. 12TH FLOOR NEWPORT BEACH, CA 92660	X

Signatures

G. Louis Graziadio, III		03/16/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $3.575 to $3.650, inclusive. Mr. Graziadio undertakes to provide to Acacia Research Corporation ("Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4.
(2)	These shares are owned by the Graziadio Family Trust u/d/t 11/13/75 ("GFT"), an irrevocable trust established by Mr. Graziadio for the benefit of his children. Mr. Graziadio is neither a trustee nor a beneficiary of GFT and disclaims beneficial ownership of the shares owned by GFT.
(3)	These shares are owned by the George & Reva Graziadio Charitable Lead Annuity Trust (the "Annuity Trust"), as to which Mr. Graziadio is trustee and Mr. Graziadio's minor children are contingent beneficiaries. Mr. Graziadio disclaims beneficial ownership of the shares owned by the Annuity Trust.
(4)	These shares are owned by Mr. Graziadio's minor child, Marianna R. Graziadio.
(5)	These shares are owned by Mr. Graziadio's minor child, George L. Graziadio, IV.
(6)	These shares are owned by the George and Reva Graziadio Foundation ("Foundation"), a charitable foundation established by Mr. Graziadio's parents, as to which Mr. Graziadio has no pecuniary interest. Mr. Graziadio is one of three directors of the Foundation and does not have the right to control disposition of these shares. Mr. Graziadio disclaims beneficial ownership of the shares owned by the Foundation.

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