The reporting person, Thomas Gregory Galluccio, disclosed beneficial ownership of 12,930,891 Royalty Trust Units, equal to 5.6% of the class, based on 230,172,696 units outstanding as reported in the issuer's Form 10-Q for the quarter ended March 31, 2026. The filing states Mr. Galluccio has sole voting and dispositive power over 10,397,661 units and shared voting and dispositive power over 2,533,230 units held by the Teresa Galluccio 2013 Family Trust, of which he is a co-trustee and one of three beneficiaries.
Positive
None.
Negative
None.
Insights
Beneficial ownership disclosure shows a meaningful passive stake and co-trustee relationship.
The filing reports 12,930,891 units (5.6%) based on March 31, 2026 outstanding figures. The disclosure distinguishes between sole and shared voting/dispositive powers and attributes 2,533,230 units to a family trust where the reporting person is a co-trustee.
Cash‑flow treatment and any planned transactions are not included; subsequent filings would show changes in position or sales. The trust disclosure and disclaimer follow Rule 13d-4 conventions and clarify limited beneficial claim over trust-held units.
Key Figures
Units beneficially owned:12,930,891 unitsPercent of class:5.6%Units outstanding:230,172,696 units+2 more
5 metrics
Units beneficially owned12,930,891 unitsreported in Schedule 13G
Percent of class5.6%calculated from outstanding units as of <date>March 31, 2026</date>
Units outstanding230,172,696 unitsas reported in issuer's Form 10-Q for quarter ended <date>March 31, 2026</date>
Sole voting power10,397,661 unitssole power to vote or direct the vote
Shared voting power (trust)2,533,230 unitsheld by Teresa Galluccio 2013 Family Trust (co-trustee)
"Item 2. identifies the filing as a Schedule 13G statement"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
beneficial ownershipregulatory
"Item 4(a) states "Amount beneficially owned: 12,930,891 Royalty Trust Units""
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
dispositive powerfinancial
""Sole power to dispose" and "Shared power to dispose" entries in Item 4(c)"
Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.
pecuniary interestlegal
"Filing disclaimers reference "pecuniary interest therein" under Rule 13d-4"
What stake does Thomas Gregory Galluccio report in GULTU?
He reports ownership of 12,930,891 Royalty Trust Units, representing 5.6% of the class based on March 31, 2026 outstanding units. The figure combines units held directly and units held via a family trust where he is co-trustee.
How many units does Galluccio control versus share control in GULTU?
The filing states he has sole voting and dispositive power over 10,397,661 units and shared voting and dispositive power over 2,533,230 units held by the Teresa Galluccio 2013 Family Trust, per the Schedule 13G disclosure.
What outstanding share base is used to calculate the 5.6% for GULTU?
The 5.6% percent is calculated using 230,172,696 Royalty Trust Units outstanding as reported in the issuer's Form 10-Q for the quarter ended March 31, 2026, cited directly in the filing's ownership section.
Does Galluccio claim full beneficial ownership of the trust-held units?
No. The filing discloses the trust holds 2,533,230 units and states he "disclaims beneficial ownership" of those units under Rule 13d-4, except to the extent of any pecuniary interest, while noting he is a co-trustee and beneficiary.
Does the Schedule 13G indicate any planned sales or purchases of GULTU units?
The Schedule 13G excerpt lists ownership amounts and voting/dispositive powers but does not state any planned purchases or sales. The filing contains no transaction instructions or proceeds information for future trades.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Gulf Coast Ultra Deep Royalty Trust
(Name of Issuer)
Royalty Trust Units
(Title of Class of Securities)
40222T104
(CUSIP Number)
05/28/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
40222T104
1
Names of Reporting Persons
Galluccio Thomas Gregory
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
10,397,661.00
6
Shared Voting Power
2,533,230.00
7
Sole Dispositive Power
10,397,661.00
8
Shared Dispositive Power
2,533,230.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
12,930,891.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
Address or principal business office or, if none, residence:
402 Montpelier Drive
Southlake, Texas 76092
(c)
Citizenship:
United States
(d)
Title of class of securities:
Royalty Trust Units
(e)
CUSIP Number(s):
40222T104
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
12,930,891 Royalty Trust Units
(b)
Percent of class:
5.6% (calculated based on 230,172,696 Royalty Trust Units outstanding as reported in the Issuer's Form 10-Q for the quarter ended March 31, 2026)
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
10,397,661
(ii) Shared power to vote or to direct the vote:
2,533,230
(iii) Sole power to dispose or to direct the disposition of:
10,397,661
(iv) Shared power to dispose or to direct the disposition of:
2,533,230
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
The Royalty Trust Units reported in this Schedule include 2,533,230 Units held by the Teresa Galluccio 2013 Family Trust (the "Trust"). The Reporting Person serves as co-trustee of the Trust together with Nicola F. Galluccio and accordingly shares voting and dispositive power over the Trust's Units. The beneficiaries of the Trust are entitled to the economic interest in the Units held by the Trust in accordance with the terms of the Trust instrument. The Reporting Person is one of three beneficiaries of the Trust. The Reporting Person disclaims beneficial ownership of the Royalty Trust Units held by the Trust pursuant to Rule 13d-4 under the Securities Exchange Act of 1934, except to the extent of his pecuniary interest therein, if any. The inclusion of the Trust's Royalty Trust Units in this Schedule shall not be deemed an admission that the Reporting Person is the beneficial owner of such Royalty Trust Units for purposes of Section 13(d) of the Securities Exchange Act of 1934 or for any other purpose.
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
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:
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 that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable 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.
