Sec Form 4 Filing - SUBIN NEIL S @ Gulf Coast Ultra Deep Royalty Trust - 2022-07-05

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 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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1. Name and Address of Reporting Person SUBIN NEIL S 2. Issuer Name and Ticker or Trading Symbol Gulf Coast Ultra Deep Royalty Trust [ GULTU] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2336 SE OCEAN BLVD, SUITE 400 3. Date of Earliest Transaction (MM/DD/YY) 07/05/2022 (Street) STUART, FL34996 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 07/05/2022 S 7,811 D $ 0.05 33,447,527( 1 )( 2 ) I By Milfam II L.P. Common Stock 07/05/2022 S 831 D $ 0.05 3,556,765( 1 )( 2 ) I By LIMFAM LLC Common Stock 07/05/2022 S 526 D $ 0.05 2,251,474( 1 )( 2 ) I By Lloyd I. Miller, III Revocable Trust Common Stock 07/05/2022 S 362 D $ 0.05 1,550,214( 1 )( 2 ) I By MBM - Trust A-4 Common Stock 07/05/2022 S 181 D $ 0.05 775,106( 1 )( 2 ) I By Miller Family Education and Medical Trust Common Stock 07/05/2022 S 181 D $ 0.05 775,106( 1 )( 2 ) I By Susan F. Miller Spousal Trust A-4 Common Stock 07/05/2022 S 59 D $ 0.05 251,142( 1 )( 2 ) I By Milfam I L.P. Common Stock 07/05/2022 S 59 D $ 0.05 250,907( 1 )( 2 ) I By Co-Trustee GST Lloyd A. Crider Common Stock 07/05/2022 S 52 D $ 0.05 221,440( 1 )( 2 ) I By Milfam LLC Common Stock 07/05/2022 S 41 D $ 0.05 176,045( 1 )( 2 ) I By Trustee GST Catherine C. Miller

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 SUBIN NEIL S 2336 SE OCEAN BLVD, SUITE 400 STUART, FL34996 X Signatures /s/ Neil S. Subin 07/07/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Except for possessing voting and dispositive power, the reporting person disclaims any other beneficial ownership of, and specifically any pecuniary interest in, the securities reported herein. This filing is not, and shall not be deemed, an admission (and the reporting person expressly disclaims) that the reporting person is, for purposes of Rule 16a-1(a)(2) under Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the beneficial owner of any equity securities covered by this filing. ( 2 )Mr. Neil Subin is the President and Manager of MILFAM LLC, which serves as manager, general partner, or investment advisor of a number of entities formerly managed or advised by the late Lloyd I. Miller, III. Mr. Subin also serves as trustee of a number of Miller family trusts. There has been no acquisition transaction by the reporting person with respect to the securities reported herein within the meaning of Section 16 of the Exchange Act.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

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