Filing Details

RITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ________)* Gulf Coast Ultra Deep Royalty Trust (GULTU) (Name of Issuer) Royalty Trust Units (Title of Class of Securities) 40222T104 (CUSIP Number) December 31, 2017 (Date of Event Which Requires Filing of this Statement) Checktheappropriateboxtodesignatetherulepursuanttowhichthis Scheduleisfiled: X Rule 13d-1(b) Rule 13d-1(c) Rule 13d-1(d) Theremainderofthiscoverpage shallbefilledoutforareporting personsinitialfilingonthisform withrespecttothesubject classofsecurities,andforanysubsequent amendmentcontaininginformationwhich wouldalterthedisclosuresprovidedina priorcoverpage.Theinformationrequired intheremainderofthiscoverpageshall notbedeemedtobefiledforthepurposeof Section18oftheSecuritiesExchangeActof1934 orotherwisesubjecttotheliabilitiesofthat sectionoftheActbutshallbesubjecttoallother provisionsoftheActhoweverseetheNotes. Personswhorespondtothecollectionof informationcontainedinthisformarenot requiredtorespondunlesstheformdisplaysa currentlyvalidOMBcontrolnumber. 13G CUSIPNo.106776107 PageXofXX 1. Names of Reporting Persons. Akanthos Capital Management, LLC 2. Check the Appropriate Box if a Member of a Group (a) (b) X 3. SEC Use Only 4. Citizenship or Place of Organization Delaware, U.S.A. 5. Sole Voting Power : 16,135,696 (see Note to Item 4 below) 6. Shared Voting Power: 0 7. Sole Dispositive Power: 16,135,696 (see Note to Item 4 below) 8. Shared Dispositive Power: 0 9. Aggregate Amount Beneficially Owned by Each Reporting Person: 16,135,696 (see Note to Item 4 below) 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares 11. Percent of Class Represented by Amount in Row (9): 7.01% 12. Type of Reporting Person IA 13G CUSIP No. 106776107 ITEM 1. (a) Name of Issuer: Gulf Coast Ultra Deep Royalty Trust (GULTU) (b)AddressofIssuer'sPrincipalExecutiveOffice: TheBankofNewYork MellonTrustCompany,N.A.,astrustee Institutional Trust Services 919 Congress Avenue, Suite 500, Austin, TX 78701 ITEM 2. (a) Name of Person Filing: Akanthos Capital Management, LLC (b) Address of Principal Business Office, or if None, Residence: 21700 Oxnard St., Ste1730, WoodlandHills,CA 91367 (c) Citizenship: State of Delaware LLC (d) Title of Class of Securities: Royalty Trust Units (e) CUSIP Number:

40222T104 ITEM 3. IFTHISSTATEMENTISFILEDPURSUANT TOSS.240.13d-1(b)OR240.13d-2(b)OR(c), CHECK WHETHER TH E PERSON FILING IS A: X Aninvestmentadviserinaccordancewith ss.240.13d-1(b)(1)(ii)(E) ITEM 4. OWNERSHIP. Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. (a) Amount beneficially owned: 16,135,696 (see Note to below) (b) Percent of class: 7.01% (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote : 16,135,696 (see Note to below) (ii) Shared power to vote or to direct the vote : 0 (iii) Sole power to dispose or to direct the disposition of: 16,135,696 (see Note to below) (iv) Shared power to dispose or to direct the disposition of : 0 NOTE:AkanthosCapitalManagement,LLC("ACM"), aninvestment adviserregisteredunderthe InvestmentAdvisersActof1940, furnishesinvestmentadvicetoprivatefunds andseparatelymanaged accounts. Inthisrole,ACMpossessesvotingand/or investmentpower overthe securitiesoftheIssuerdescribed inthisschedulethatare owned by the Funds. All securities in this schedule are owned by the Funds. ACM disclaims ownership of such securities. ITEM 5.OWNERSHIPOFFIVEPERCENTORLESSOFACLASS. Not Applicable ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON. All securities reported are owned by ACM's advisory clients, none of which to ACM's knowledge owns more than 5% of the class. ITEM 7.IDENTIFICATIONANDCLASSIFICATION OFTHESUBSIDIARY WHICHACQUIREDTHE SECURITYBEING REPORTEDONBYTHEPARENT HOLDINGCOMPANY. Not Applicable ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP. Not Applicable ITEM 9. NOTICE OF DISSOLUTION OF GROUP. Not Applicable ITEM 10.CERTIFICATIONS. (a) The following certification shall be included if the statement is filed pursuant to Rule 13d-1(b): "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect." (b) The following certification shall be included if the statement is filed pursuant to Rule 13d-1(c): "By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect. " SIGNATURE Afterreasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. February 14, 2018 ________________________________ (Date) /s/Michael Kao ________________________________ (Signature) Michael Kao, CEO ________________________________ (Name/Title)