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Quantumsphere Acquisition Corp (QUMS) is the issuer in an amended Schedule 13G reporting that Wolverine Asset Management, LLC, Wolverine Holdings, LLC, Christopher L. Gust and Robert R. Bellick each may be deemed beneficial owners of 335,957 Ordinary Shares, or 2.95% of the class. These figures refer to the same shares, not four separate positions. Each reports shared voting and dispositive power over the shares and zero sole voting and dispositive power. Wolverine Asset Management is an investment adviser; Wolverine Holdings is its sole member and manager, and Gust and Bellick may be deemed to control Wolverine Holdings as its managers. The ownership percentage uses 11,406,650 Ordinary Shares outstanding as of August 14, 2026.
Key Figures
Ordinary Shares beneficially owned:335,957 sharesPercent of class:2.95%Ordinary Shares outstanding:11,406,650 shares
3 metrics
Ordinary Shares beneficially owned335,957 sharesEach reporting person may be deemed to beneficially own the same shares
Percent of class2.95%Reported for each reporting person
Ordinary Shares outstanding11,406,650 sharesAs of August 14, 2026
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 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.
shared dispositive powerregulatory
"shared power to dispose or direct the disposition"
investment adviserfinancial
"is an investment adviser"
An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many QUMS shares did the reporting persons report owning?
Each of the four reporting persons may be deemed a beneficial owner of 335,957 Ordinary Shares, or 2.95% of the class. The reported amounts refer to the same shares, not separate positions.
Who has voting and dispositive power over QUMS shares?
Wolverine Asset Management, Wolverine Holdings, Christopher L. Gust and Robert R. Bellick each report shared voting and dispositive power over 335,957 Ordinary Shares, with zero sole voting and dispositive power.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
Quantumsphere Acquisition Corporation
(Name of Issuer)
Ordinary Shares, par value $0.0001 per share
(Title of Class of Securities)
G7387B106
(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):
G7387B106
1
Names of Reporting Persons
Wolverine Asset Management, 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
ILLINOIS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
335,957.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
335,957.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
335,957.00
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)
2.95 %
12
Type of Reporting Person (See Instructions)
IA
SCHEDULE 13G
CUSIP Number(s):
G7387B106
1
Names of Reporting Persons
Wolverine Holdings, 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
335,957.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
335,957.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
335,957.00
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)
2.95 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
G7387B106
1
Names of Reporting Persons
Christopher L. Gust
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
ILLINOIS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
335,957.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
335,957.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
335,957.00
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)
2.95 %
12
Type of Reporting Person (See Instructions)
HC, IN
SCHEDULE 13G
CUSIP Number(s):
G7387B106
1
Names of Reporting Persons
Robert R. Bellick
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
ILLINOIS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
335,957.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
335,957.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
335,957.00
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)
2.95 %
12
Type of Reporting Person (See Instructions)
HC, IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Quantumsphere Acquisition Corporation
(b)
Address of issuer's principal executive offices:
1185 Avenue of the Americas, Suite 349, New York, NY 10036
Item 2.
(a)
Name of person filing:
Wolverine Asset Management, LLC
Wolverine Holdings, LLC
Christopher L. Gust
Robert R. Bellick
(b)
Address or principal business office or, if none, residence:
c/o Wolverine Asset Management, LLC
175 West Jackson Boulevard, Suite 340
Chicago, IL 60604
(c)
Citizenship:
Wolverine Asset Management, LLC - Illinois
Wolverine Holdings, LLC - Delaware
Christopher L. Gust - U.S. Citizen
Robert R. Bellick - U.S. Citizen
(d)
Title of class of securities:
Ordinary Shares, par value $0.0001 per share
(e)
CUSIP No.:
G7387B106
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:
Wolverine Asset Management, LLC ("WAM") is an investment adviser and has voting and dispositive power over 335,957 of the Issuer's Ordinary Shares. The sole member and manager of WAM is Wolverine Holdings, LLC ("Wolverine Holdings"). Robert R. Bellick and Christopher L. Gust, may be deemed to control Wolverine Holdings in their roles as Managers of Wolverine Holdings. Each of Wolverine Holdings, Mr. Bellick, and Mr. Gust have voting and dispositive power over 335,957 of the Issuer's Ordinary Shares.
(b)
Percent of class:
WAM may be deemed the beneficial owner of 2.95% of the Issuer's outstanding Ordinary Shares and each of Wolverine Holdings, Mr. Bellick, and Mr. Gust may be deemed the beneficial owner of 2.95% of the Issuer's outstanding Ordinary Shares. Percentage calculated by dividing the number of shares deemed beneficially owned by each reporting person by 11,406,650 (the number of Ordinary Shares outstanding as of August 14, 2026 according to the Issuer's Form 10-Q filed August 14, 2026).
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
WAM has shared power to vote or direct the vote of 335,957 of the Issuer's Ordinary Shares, and each of Wolverine Holdings, Mr. Bellick, and Mr. Gust has shared power to vote or direct the vote of 335,957 of the Issuer's Ordinary Shares, in each case as set forth in Item 4(a) above.
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
WAM has shared power to dispose or direct the disposition of 335,957 of the Issuer's Ordinary Shares, and each of Wolverine Holdings, Mr. Bellick, and Mr. Gust has shared power to dispose or direct the disposition of 335,957 of the Issuer's Ordinary Shares, in each case as set forth in Item 4(a) above.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
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:
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 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.
