Key facts
- This page summarizes Dr. Avi S. Katz's Form 4 filing for Hadron Energy, Inc. (GIG).
- 6 reported transactions and 9 derivative rows are listed below.
- Accepted by SEC: 27 May 2026, 20:45.
Dr. Avi S. Katz - 22 May 2026 Form 4 Insider Report for Hadron Energy, Inc. (GIG)
- Reporting relationship
- Chairman, Director, 10%+ Owner
- Issuer ticker
- GIG
- Reported as of
- 22 May 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 27 May 2026, 20:45:34 UTC
- Prior SEC filing
- 20 Apr 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Dr. Avi S. Katz, individually
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Dr. Avi S. Katz filed Form 4 for Hadron Energy, Inc. (GIG) on 27 May 2026.
Change
- Previous filing in this sequence was filed on 20 Apr 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (3)
CIK 0001451693
Primary reporting owner
Katz Avi S
- Relationship
- Chairman, Director, 10%+ Owner
- Address
- C/O GIGACQUISITIONS7 CORP., 1731 EMBARCADERO RD, SUITE 200, PALO ALTO
- Signature
- /s/ Dr. Avi S. Katz, individually
- Signature date
- 27 May 2026
CIK 0002023728
GigAcquisitions7 Corp.
- Relationship
- 10%+ Owner
- Address
- C/O GIGACQUISITIONS7 CORP., 1731 EMBARCADERO RD, SUITE 200, PALO ALTO
- Signature
- /s/ Dr. Avi S. Katz, as managing member of GigAcquisitions7 Corp.
- Signature date
- 27 May 2026
CIK 0001430575
Dinu Raluca
- Relationship
- Director, 10%+ Owner
- Address
- C/O GIGACQUISITIONS7 CORP., 1731 EMBARCADERO RD, SUITE 200, PALO ALTO
- Signature
- /s/ Dr. Raluca Dinu, individually
- Signature date
- 27 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +87,500
- Change %
- Price
- Shares after
- 87,500
- Date
- 22 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +87,500
- Change %
- Price
- Shares after
- 87,500
- Date
- 22 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +87,500
- Change %
- Price
- Shares after
- 87,500
- Date
- 22 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +87,500
- Change %
- Price
- Shares after
- 87,500
- Date
- 22 May 2026
- Ownership
- By Spouse, Dr. Raluca Dinu
- Footnotes
- F2, F3
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +87,500
- Change %
- Price
- Shares after
- 87,500
- Date
- 22 May 2026
- Ownership
- By Spouse, Dr. Raluca Dinu
- Footnotes
- F2, F3
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +87,500
- Change %
- Price
- Shares after
- 87,500
- Date
- 22 May 2026
- Ownership
- By Spouse, Dr. Raluca Dinu
- Footnotes
- F2, F3
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +9,932,246
- Change %
- Price
- Shares after
- 9,932,246
- Date
- 22 May 2026
- Ownership
- By GigAcquisitions7 Corp.
- Footnotes
- F2, F4
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +9,932,246
- Change %
- Price
- Shares after
- 9,932,246
- Date
- 22 May 2026
- Ownership
- By GigAcquisitions7 Corp.
- Footnotes
- F2, F4
GIG
transaction
Common Stock
Award
- Transaction value
- Shares
- +9,932,246
- Change %
- Price
- Shares after
- 9,932,246
- Date
- 22 May 2026
- Ownership
- By GigAcquisitions7 Corp.
- Footnotes
- F2, F4
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
GIG
transaction
Derivative
Class B ordinary shares
Options Exercise
- Transaction value
- Shares
- -9,932,246
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Common Stock
- Underlying amount
- 9,932,246
- Exercise price
- Footnotes
- F2, F4
GIG
transaction
Derivative
Class B ordinary shares
Options Exercise
- Transaction value
- Shares
- -9,932,246
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Common Stock
- Underlying amount
- 9,932,246
- Exercise price
- Footnotes
- F2, F4
GIG
transaction
Derivative
Class B ordinary shares
Options Exercise
- Transaction value
- Shares
- -9,932,246
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Common Stock
- Underlying amount
- 9,932,246
- Exercise price
- Footnotes
- F2, F4
GIG
transaction
Derivative
Convertible Promissory Note
Other
- Transaction value
- Shares
- -29,300
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Class A ordinary shares
- Underlying amount
- 29,300
- Exercise price
- Footnotes
- F4, F5
GIG
transaction
Derivative
Convertible Promissory Note
Other
- Transaction value
- Shares
- -29,300
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Class A ordinary shares
- Underlying amount
- 29,300
- Exercise price
- Footnotes
- F4, F5
GIG
transaction
Derivative
Convertible Promissory Note
Other
- Transaction value
- Shares
- -29,300
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Class A ordinary shares
- Underlying amount
- 29,300
- Exercise price
- Footnotes
- F4, F5
GIG
transaction
Derivative
Convertible Promissory Note
Other
- Transaction value
- Shares
- -29,300
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Warrants
- Underlying amount
- 29,300
- Exercise price
- Footnotes
- F4, F5
GIG
transaction
Derivative
Convertible Promissory Note
Other
- Transaction value
- Shares
- -29,300
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Warrants
- Underlying amount
- 29,300
- Exercise price
- Footnotes
- F4, F5
GIG
transaction
Derivative
Convertible Promissory Note
Other
- Transaction value
- Shares
- -29,300
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 22 May 2026
- Ownership
- GigAcquisitions7 Corp.
- Underlying class
- Warrants
- Underlying amount
- 29,300
- Exercise price
- Footnotes
- F4, F5
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 5 footnotes
Footnote F1
Received by Dr. Avi S. Katz in exchange for 1,750.04 shares of Hadron Energy, Inc. ("Hadron") held by Dr. Katz, in connection with the merger of Hadron into a subsidiary of GigCapital7 Corp. (the "Company") (the "Merger") pursuant to the exchange ratio set forth in the business combination agreement between Hadron and the Company. The acquisition of these shares is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange pursuant to the Securities and Exchange Act of 1934, as amended.
Footnote F2
The closing price of the Company's Common Stock on the effective date of the Merger was $5.16.
Footnote F3
Received by Dr. Raluca Dinu in exchange for 1,750.04 shares of Hadron held by Dr. Dinu, in connection with the Merger of Hadron into a subsidiary of the Company pursuant to the exchange ratio set forth in the business combination agreement between Hadron and the Company. The acquisition of these shares is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange pursuant to the Securities and Exchange Act of 1934, as amended.
Footnote F4
The Common Stock are held directly by GigAcquisitions7 Corp. (the "Sponsor"). The shares held by the Sponsor are beneficially owned by Dr. Katz, the Issuer's Chairman of the Board of Directors, and Dr. Dinu, the Issuer's Director. Dr. Katz and Dr. Dinu are the members of the Sponsor, who both have the voting and dispositive power over the shares held by the Sponsor.
Footnote F5
In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full.