SEC FORM 4

SEC FORM 4SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Katz Avi S

(Last)

(First)

(Middle)

C/O GIGCAPITAL7 CORP.

1731 EMBARCADERO RD, SUITE 200

(Street)

PALO ALTO

CALIFORNIA

94303

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GigCapital7 Corp. [ GIGGU ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/16/2026

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

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

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

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Convertible Promissory Note	⁽¹⁾	04/16/2026		A		29,300		⁽¹⁾	⁽²⁾	Class A ordinary shares	29,300	⁽³⁾	29,300	I	GigAcquisitions7 Corp.⁽⁴⁾
Convertible Promissory Note	⁽¹⁾	04/16/2026		A		29,300		⁽¹⁾	⁽²⁾	Warrants	29,300	⁽³⁾	29,300	I	GigAcquisitions7 Corp.⁽⁴⁾

1. Name and Address of Reporting Person^*

Katz Avi S

(Last)

(First)

(Middle)

C/O GIGCAPITAL7 CORP.

1731 EMBARCADERO RD, SUITE 200

(Street)

PALO ALTO

CALIFORNIA

94303

(City)

(State)

(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

GigAcquisitions7 Corp.

(Last)

(First)

(Middle)

C/O GIGCAPITAL7 CORP.

1731 EMBARCADERO RD, SUITE 200

(Street)

PALO ALTO

CALIFORNIA

94303

(City)

(State)

(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

Dinu Raluca

(Last)

(First)

(Middle)

C/O GIGCAPITAL7 CORP.

1731 EMBARCADERO ROAD SUITE 200

(Street)

PALO ALTO

CALIFORNIA

94303

(City)

(State)

(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. On April 16, 2026, the Issuer entered into an Amended and Restated Convertible Promissory Note (the "Note") promising to pay Sponsor, $293,000.00. All amounts due under the Note may be converted into 29,300 units. Each unit consisting of one Class A ordinary share and one warrant to purchase one Class A ordinary share, resulting in the aggregate of 29,300 Class A ordinary shares and warrants to purchase an additional 29,300 Class A ordinary shares of the Issuer at the discretion of the Sponsor upon the consummation of the business combination. The warrants shall have the same terms and conditions as warrants issued in the Issuer's initial public offering. The acquisition of the Note by the Sponsor, and through it, the beneficial acquisition of the Note by the Sponsor's sole members, is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended.

2. The principal balance of the Note shall be payable by the Issuer on the earlier of: (i) the date on which Issuer consummates its initial business combination or (ii) the date that the winding up of the Issuer is effective. Payee may elect to convert the Note upon consummation of an initial business combination of the Issuer or at Payee's option at any time prior to the payment in full.

3. The Issuer's Class A ordinary shares and warrants as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015).

4. The Class B ordinary shares are held directly by GigAcquisitions7 Corp. (the "Sponsor"). The shares held by the Sponsor are beneficially owned by Dr. Katz, GigCapital7 Corp.'s Chief Executive Officer and Chairman of the Board of Directors, and Dr. Raluca Dinu, GigCapital7 Corp.'s Director. Dr. Katz and Dr. Dinu are the sole members of the Sponsor, who both have the voting and dispositive power over the shares held by the Sponsor.

	/s/ Dr. Avi S. Katz, individually	04/20/2026
	/s/ Dr. Avi S. Katz, as managing member of GigAcquisitions7 Corp.	04/20/2026
	/s/ Dr. Raluca Dinu, individually	04/20/2026
	** 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 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).
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.
* Form 4: SEC 1474 (03-26)

SEC Form 4 filed by Katz Avi S