Quantumsphere Acquisition (QUMSU) director files insider report with zero holdings

Rhea-AI Filing Summary

Quantumsphere Acquisition Corp director reports no share ownership. Daniel M. McCabe, a director of the company, filed an initial insider ownership statement indicating that he does not beneficially own any non-derivative or derivative securities of Quantumsphere Acquisition Corp as of the reported event date.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

McCabe Daniel M.

(Last) (First) (Middle)

C/O QUANTUMSPHERE ACQUISITION

CORPORATION 1185 6TH AVE., SUITE 304

(Street)

NEW YORK NY 10036

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/05/2025

3. Issuer Name and Ticker or Trading Symbol
Quantumsphere Acquisition Corp [ QUMSU ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Daniel M. McCabe	08/12/2025
	** Signature of Reporting Person	Date
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 5 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What does the QUMSU Form 3 filing by Daniel M. McCabe show?

The filing shows that director Daniel M. McCabe reports no beneficial ownership of Quantumsphere Acquisition Corp securities. Both non-derivative and derivative tables are effectively empty, and the explanation of responses states that no securities are beneficially owned.

What is the relationship of Daniel M. McCabe to Quantumsphere Acquisition Corp (QUMSU)?

Daniel M. McCabe is a director of Quantumsphere Acquisition Corp. The relationship section of the filing confirms his role as a director, with no officer position or 10% ownership indicated and no other relationship categories checked.

Does the QUMSU director report owning any stock or options in this Form 3?

No, the director reports owning no stock or derivative securities. The explanation of responses clearly states that no securities are beneficially owned, and the tables for both non-derivative and derivative holdings contain no reported positions.

What is the event date referenced in the QUMSU Form 3 for Daniel M. McCabe?

The event date referenced in the Form 3 is 08/05/2025. This date is listed as the event requiring the statement, and the form is signed and dated later to formally record his reported lack of beneficial ownership.

Is the QUMSU Form 3 for Daniel M. McCabe a joint filing with others?

No, the filing is made by one reporting person only. The section covering individual or joint/group filing has the line checked indicating that the form is filed by one reporting person, with no indication of additional joint filers.