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For ONE Nuclear Energy Inc. (ONEN), HC VII Sponsor LLC, Hennessy Capital Group LLC, Daniel J. Hennessy, and Thomas D. Hennessy report beneficial ownership of common stock. As of September 30, 2026, the sponsor, Hennessy Capital Group, and Daniel J. Hennessy each may be deemed to beneficially own 5,744,999 shares, held directly by the sponsor. Thomas D. Hennessy may be deemed to beneficially own 6,494,999 shares, including 5,744,999 held by the sponsor and 750,000 held directly by him. The reported ownership percentages are approximately 5.3% for the first three reporting persons and approximately 6.0% for Thomas, based on 108,258,979 shares outstanding as of September 23, 2026. The sponsor-held shares are subject to shared voting and dispositive power; Thomas also reports sole voting and dispositive power over his directly held shares.
Key Figures
Beneficial ownership:5,744,999 sharesBeneficial ownership:6,494,999 sharesDirect holding:750,000 shares+3 more
6 metrics
Beneficial ownership5,744,999 sharesEach of HC VII Sponsor LLC, Hennessy Capital Group LLC, and Daniel J. Hennessy as of September 30, 2026; held directly by the sponsor.
Beneficial ownership6,494,999 sharesThomas D. Hennessy as of September 30, 2026.
Direct holding750,000 sharesShares held directly by Thomas D. Hennessy as of September 30, 2026.
Shares outstanding108,258,979 sharesAs of September 23, 2026; used as the basis for reported ownership percentages.
Beneficial ownership percentageApproximately 5.3%Each of HC VII Sponsor LLC, Hennessy Capital Group LLC, and Daniel J. Hennessy as of September 30, 2026.
Beneficial ownership percentageApproximately 6.0%Thomas D. Hennessy as of September 30, 2026.
Key Terms
beneficial owner, shared voting power, dispositive power
3 terms
beneficial ownerregulatory
"may be deemed the beneficial owner of 5,744,999 shares"
A beneficial owner is the person who ultimately owns or controls a financial asset or property, even if their name isn't directly on official documents. Think of it like someone who secretly holds the keys to a safe deposit box—others may appear to have access, but the true owner is the one who benefits from what's inside. Identifying beneficial owners helps ensure transparency and prevent illegal activities like money laundering or fraud.
shared voting powerregulatory
"Shared power to vote or to direct the vote"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
dispositive powerregulatory
"Shared power to dispose or to direct the disposition"
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.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many ONEN shares does Thomas D. Hennessy beneficially own?
Thomas D. Hennessy may be deemed to beneficially own 6,494,999 shares as of September 30, 2026. This consists of 5,744,999 shares held directly by HC VII Sponsor LLC and 750,000 shares held directly by Thomas D. Hennessy.
Who has voting and dispositive power over HC VII Sponsor's ONEN shares?
HC VII Sponsor LLC holds 5,744,999 shares directly. Hennessy Capital Group LLC, the sponsor's sole manager, and Daniel J. Hennessy and Thomas D. Hennessy, managing members of Hennessy Capital Group, may each be deemed beneficial owners with shared voting and dispositive power over those shares.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
ONE Nuclear Energy Inc.
(Name of Issuer)
Common Stock, par value $0.0001 per share
(Title of Class of Securities)
68253E100
(CUSIP Number)
09/30/2026
(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):
68253E100
1
Names of Reporting Persons
HC VII Sponsor LLC
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
NEVADA
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
5,744,999.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,744,999.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,744,999.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.3 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: (1) The aggregate amount beneficially owned by HC VII Sponsor LLC consists of 5,744,999 shares of common stock, par value $0.0001 per share ("Common Stock") held directly by HC VII Sponsor LLC.
(2) The percentage of the shares of Common Stock reported beneficially owned by HC VII Sponsor LLC is based on 108,258,979 shares of Common Stock outstanding as of September 23, 2026, as reported in the Issuer's current report on Form 8-K filed with the Securities and Exchange Commission (the "Commission") on September 29, 2026.
SCHEDULE 13G
CUSIP Number(s):
68253E100
1
Names of Reporting Persons
Hennessy Capital Group LLC
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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
5,744,999.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,744,999.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,744,999.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.3 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: (1) The aggregate amount beneficially owned by Hennessy Capital Group LLC consists of 5,744,999 shares of Common Stock held directly by HC VII Sponsor LLC.
(2) The percentage of the shares of Common Stock reported beneficially owned by Hennessy Capital Group LLC is based on 108,258,979 shares of Common Stock outstanding as of September 23, 2026, as reported in the Issuer's current report on Form 8-K filed with the Commission on September 29, 2026.
SCHEDULE 13G
CUSIP Number(s):
68253E100
1
Names of Reporting Persons
HENNESSY DANIEL J
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
0.00
6
Shared Voting Power
5,744,999.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
5,744,999.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
5,744,999.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.3 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: (1) The aggregate amount beneficially owned by Daniel J. Hennessy consists of 5,744,999 shares of Common Stock held directly by HC VII Sponsor LLC.
(2) The percentage of the shares of Common Stock reported beneficially owned by Daniel J. Hennessy is based on 108,258,979 shares of Common Stock outstanding as of September 23, 2026, as reported in the Issuer's current report on Form 8-K filed with the Commission on September 29, 2026.
SCHEDULE 13G
CUSIP Number(s):
68253E100
1
Names of Reporting Persons
Hennessy Thomas D
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
750,000.00
6
Shared Voting Power
5,744,999.00
7
Sole Dispositive Power
750,000.00
8
Shared Dispositive Power
5,744,999.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
6,494,999.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
6.0 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: (1) The sole voting power and sole dispositive power beneficially owned by Thomas D. Hennessy consists of 750,000 shares of Common Stock held directly by Thomas D. Hennessy.
(2) The aggregate amount beneficially owned by Thomas D. Hennessy consists of (i) 5,744,999 shares of Common Stock held directly by HC VII Sponsor LLC and (ii) 750,000 shares of Common Stock held directly by Thomas D. Hennessy.
(3) The percentage of the shares of Common Stock reported beneficially owned by Thomas D. Hennessy is based on 108,258,979 shares of Common Stock outstanding as of September 23, 2026, as reported in the Issuer's current report on Form 8-K filed with the Commission on September 29, 2026.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
ONE Nuclear Energy Inc.
(b)
Address of issuer's principal executive offices:
700 S. Rosemary Avenue, Suite 204, West Palm Beach, FL 33401
Item 2.
(a)
Name of person filing:
This statement is filed on behalf of HC VII Sponsor LLC, Hennessy Capital Group LLC, Daniel J. Hennessy, and Thomas D. Hennessy (collectively, the "Reporting Persons"). Hennessy Capital Group LLC is the sole manager of HC VII Sponsor LLC. Daniel J. Hennessy and Thomas D. Hennessy are the managing members of Hennessy Capital Group LLC. Consequently, each of Hennessy Capital Group LLC, Daniel J. Hennessy, and Thomas D. Hennessy may be deemed the beneficial owner of securities held by HC VII Sponsor LLC and has shared voting and dispositive power over such securities.
(b)
Address or principal business office or, if none, residence:
195 US Hwy 50, Suite 207, Zephyr Cove, NV 89448
(c)
Citizenship:
HC VII Sponsor LLC is a Nevada limited liability company. Hennessy Capital Group LLC is a Delaware limited liability company. Each of Daniel J. Hennessy and Thomas D. Hennessy is a citizen of the United States of America.
(d)
Title of class of securities:
Common Stock, par value $0.0001 per share
(e)
CUSIP No.:
68253E100
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:
As of September 30, 2026, each of HC VII Sponsor LLC, Hennessy Capital Group LLC, and Daniel J. Hennessy may be deemed the beneficial owner of 5,744,999 shares of Common Stock, consisting of 5,744,999 shares of Common Stock held directly by HC VII Sponsor LLC.
As of September 30, 2026, Thomas D. Hennessy may be deemed the beneficial owner of 6,494,999 shares of Common Stock, consisting of (i) 5,744,999 shares of Common Stock held directly by HC VII Sponsor LLC and (ii) 750,000 shares of Common Stock held directly by Thomas D. Hennessy.
(b)
Percent of class:
As of September 30, 2026, each of HC VII Sponsor LLC, Hennessy Capital Group LLC, and Daniel J. Hennessy may be deemed the beneficial owner of approximately 5.3% of the shares of Common Stock outstanding, and Thomas D. Hennessy may be deemed the beneficial owner of approximately 6.0% of the shares of Common Stock outstanding. These percentages are based on 108,258,979 shares of Common Stock outstanding as of September 23, 2026, as reported in the Issuer's current report on Form 8-K filed with the Commission on September 29, 2026.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
HC VII Sponsor LLC: 0
Hennessy Capital Group LLC: 0
Daniel J. Hennessy: 0
Thomas D. Hennessy: 750,000
(ii) Shared power to vote or to direct the vote:
HC VII Sponsor LLC: 5,744,999
Hennessy Capital Group LLC: 5,744,999
Daniel J. Hennessy: 5,744,999
Thomas D. Hennessy: 5,744,999
(iii) Sole power to dispose or to direct the disposition of:
HC VII Sponsor LLC: 0
Hennessy Capital Group LLC: 0
Daniel J. Hennessy: 0
Thomas D. Hennessy: 750,000
(iv) Shared power to dispose or to direct the disposition of:
HC VII Sponsor LLC: 5,744,999
Hennessy Capital Group LLC: 5,744,999
Daniel J. Hennessy: 5,744,999
Thomas D. Hennessy: 5,744,999
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.
Not Applicable
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:
Not Applicable
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.
HC VII Sponsor LLC
Signature:
/s/ Daniel J. Hennessy
Name/Title:
Daniel J. Hennessy, Managing Member of Hennessy Capital Group LLC, Manager of HC VII Sponsor LLC
