organization · Reporting owner

GigAcquisitions7 Corp.

Disclosed activity across 1 company

Tapewire entity: 43856
SEC CIK: 0002023728

Reported relationships

Latest disclosed role at each company.

Company	Last reported as	Report date	Published
Hadron Energy, Inc.HDRN · Entity 6554	10% owner	May 22, 2026	May 28, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Hadron Energy, Inc.

Report date May 22, 2026 · Filed May 28, 2026

Jointly reported with Katz Avi S, Dinu Raluca

Security / award	Ownership account	Disclosed shares / units	Disclosure context
Common StockSEC Table I · non-derivative	Direct	87,500	Reported balance After 2026-05-22 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 1 · 2026-05-22 · Grant · Acquired 87,500 · Balance 87,500 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. F2: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16.
Common StockSEC Table I · non-derivative	IndirectBy Spouse, Dr. Raluca Dinu	87,500	Reported balance After 2026-05-22 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 2 · 2026-05-22 · Grant · Acquired 87,500 · Balance 87,500 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. F2: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16.
Common StockSEC Table I · non-derivative	IndirectBy GigAcquisitions7 Corp.	9,932,246	Reported balance After 2026-05-22 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes. 1 source row Row 3 · 2026-05-22 · Grant · Acquired 9,932,246 · Balance 9,932,246 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. F2: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16.
Class B ordinary sharesSEC Table II · derivative / convertible security · Expires 2026-05-22	IndirectGigAcquisitions7 Corp.	0	Reported balance After 2026-05-22 transaction · row 4 Instrument identity requires review; Table II rows are not merged. 1 source row Row 4 · 2026-05-22 · Exercise / conversion · Disposed 9,932,246 · Balance 0 F2: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. 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.
Convertible Promissory NoteSEC Table II · derivative / convertible security · Expires 2026-05-22	IndirectGigAcquisitions7 Corp.	0	Reported balance After 2026-05-22 transaction · row 5 Instrument identity requires review; Table II rows are not merged. 1 source row Row 5 · 2026-05-22 · Other · Disposed 29,300 · Balance 0 F5: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full. 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.
Convertible Promissory NoteSEC Table II · derivative / convertible security · Expires 2026-05-22	IndirectGigAcquisitions7 Corp.	0	Reported balance After 2026-05-22 transaction · row 6 Instrument identity requires review; Table II rows are not merged. 1 source row Row 6 · 2026-05-22 · Other · Disposed 29,300 · Balance 0 F5: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full. 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.

Filing footnotes · ownership attribution and instrument terms

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.

F2: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16.

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.

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.

F5: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full.

Transaction history

JSON API

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction date	Company	Activity / security	Shares / units	Reported price	Reported value	Details
May 22, 2026 Filed May 28, 2026 00:45 UTC	Hadron Energy, Inc. HDRN · Entity 6554	OtherConvertible Promissory Note · Derivative	29,300	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000012 · primary_doc.xml · derivative · entry 6 Katz Avi S · CIK 0001451693 · Director · Chairman · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 0 Underlying: Warrants · 29,300 shares Expires 2026-05-22 F5 · derivative.exercise_price: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full. F5 · price: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full. F4 · ownership.nature: 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. Read SEC document
May 22, 2026 Filed May 28, 2026 00:45 UTC	Hadron Energy, Inc. HDRN · Entity 6554	OtherConvertible Promissory Note · Derivative	29,300	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000012 · primary_doc.xml · derivative · entry 5 Katz Avi S · CIK 0001451693 · Director · Chairman · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 0 Underlying: Class A ordinary shares · 29,300 shares Expires 2026-05-22 F5 · derivative.exercise_price: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full. F5 · price: In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full. F4 · ownership.nature: 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. Read SEC document
May 22, 2026 Filed May 28, 2026 00:45 UTC	Hadron Energy, Inc. HDRN · Entity 6554	Exercise / conversionClass B ordinary shares · Derivative	9,932,246	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000012 · primary_doc.xml · derivative · entry 4 Katz Avi S · CIK 0001451693 · Director · Chairman · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 0 Underlying: Common Stock · 9,932,246 shares Expires 2026-05-22 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_price: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. F2 · price: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. F4 · ownership.nature: 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. Read SEC document
May 22, 2026 Filed May 28, 2026 00:45 UTC	Hadron Energy, Inc. HDRN · Entity 6554	GrantCommon Stock	9,932,246	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000012 · primary_doc.xml · nonDerivative · entry 3 Katz Avi S · CIK 0001451693 · Director · Chairman · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By GigAcquisitions7 Corp. Disclosed balance after: 9,932,246 F4 · shares: 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. F2 · price: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. F4 · ownership.nature: 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. Read SEC document
May 22, 2026 Filed May 28, 2026 00:45 UTC	Hadron Energy, Inc. HDRN · Entity 6554	GrantCommon Stock	87,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000012 · primary_doc.xml · nonDerivative · entry 2 Katz Avi S · CIK 0001451693 · Director · Chairman · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · By Spouse, Dr. Raluca Dinu Disclosed balance after: 87,500 F3 · shares: 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. F2 · price: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. Read SEC document
May 22, 2026 Filed May 28, 2026 00:45 UTC	Hadron Energy, Inc. HDRN · Entity 6554	GrantCommon Stock	87,500	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000012 · primary_doc.xml · nonDerivative · entry 1 Katz Avi S · CIK 0001451693 · Director · Chairman · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 87,500 F1 · shares: 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. F2 · price: The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. Read SEC document
April 16, 2026 Filed Apr 20, 2026 21:12 UTC	Hadron Energy, Inc. GIGGU · Entity 6554	GrantConvertible Promissory Note · Derivative	29,300	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000011 · form4.xml · derivative · entry 2 Katz Avi S · CIK 0001451693 · Director · CEO; Chairmain · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 29,300 Underlying: Warrants · 29,300 shares Expires not disclosed F1 · derivative.exercise_price: 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. F3 · price: 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). F1 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. F4 · ownership.nature: 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. Read SEC document
April 16, 2026 Filed Apr 20, 2026 21:12 UTC	Hadron Energy, Inc. GIGGU · Entity 6554	GrantConvertible Promissory Note · Derivative	29,300	Not disclosed	Not disclosed	Disclosure SEC source: 0001451693-26-000011 · form4.xml · derivative · entry 1 Katz Avi S · CIK 0001451693 · Director · CEO; Chairmain · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 29,300 Underlying: Class A ordinary shares · 29,300 shares Expires not disclosed F1 · derivative.exercise_price: 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. F3 · price: 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). F1 · derivative.exercise_date: 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. F2 · derivative.expiration_date: 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. F4 · ownership.nature: 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. Read SEC document
January 30, 2026 Filed Feb 17, 2026 21:32 UTC	Hadron Energy, Inc. GIGGU · Entity 6554	GrantConvertible Promissory Note · Derivative	14,800	Not disclosed	Not disclosed	Disclosure SEC source: 0002023730-26-000003 · form4.xml · derivative · entry 3 Katz Avi S · CIK 0001451693 · Director · CEO; Chairmain · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 14,800 Underlying: Warrants · 14,800 shares Expires not disclosed F4 · derivative.exercise_price: On January 30, 2026, the Issuer entered into a Convertible Promissory Note (the "Note") promising to pay Sponsor, $148,000.00. All amounts due under the Note may be converted into 14,800 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 14,800 Class A ordinary shares and warrants to purchase an additional 14,800 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. F6 · price: 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). F4 · derivative.exercise_date: On January 30, 2026, the Issuer entered into a Convertible Promissory Note (the "Note") promising to pay Sponsor, $148,000.00. All amounts due under the Note may be converted into 14,800 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 14,800 Class A ordinary shares and warrants to purchase an additional 14,800 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. F5 · derivative.expiration_date: 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. F3 · ownership.nature: 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. Read SEC document
January 30, 2026 Filed Feb 17, 2026 21:32 UTC	Hadron Energy, Inc. GIGGU · Entity 6554	GrantConvertible Promissory Note · Derivative	14,800	Not disclosed	Not disclosed	Disclosure SEC source: 0002023730-26-000003 · form4.xml · derivative · entry 2 Katz Avi S · CIK 0001451693 · Director · CEO; Chairmain · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 14,800 Underlying: Class A ordinary shares · 14,800 shares Expires not disclosed F4 · derivative.exercise_price: On January 30, 2026, the Issuer entered into a Convertible Promissory Note (the "Note") promising to pay Sponsor, $148,000.00. All amounts due under the Note may be converted into 14,800 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 14,800 Class A ordinary shares and warrants to purchase an additional 14,800 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. F6 · price: 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). F4 · derivative.exercise_date: On January 30, 2026, the Issuer entered into a Convertible Promissory Note (the "Note") promising to pay Sponsor, $148,000.00. All amounts due under the Note may be converted into 14,800 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 14,800 Class A ordinary shares and warrants to purchase an additional 14,800 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. F5 · derivative.expiration_date: 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. F3 · ownership.nature: 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. Read SEC document
January 21, 2026 Filed Feb 17, 2026 21:32 UTC	Hadron Energy, Inc. GIGGU · Entity 6554	SaleClass B ordinary shares · Derivative	175,000	Not disclosed	Not disclosed	Disclosure SEC source: 0002023730-26-000003 · form4.xml · derivative · entry 1 Katz Avi S · CIK 0001451693 · Director · CEO; Chairmain · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Dinu Raluca · CIK 0001430575 · Director · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 9,932,246 Underlying: Class A ordinary shares · 175,000 shares Expires not disclosed F1 · derivative.exercise_price: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F2 · kind: The reporting person sold 175,000 shares of Class B ordinary shares for an aggregate of $148,750, which the reporting person holds indirectly through GigAcquisitions7 Corp. F1 · price: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F2 · price: The reporting person sold 175,000 shares of Class B ordinary shares for an aggregate of $148,750, which the reporting person holds indirectly through GigAcquisitions7 Corp. F1 · derivative.exercise_date: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F1 · derivative.expiration_date: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F3 · ownership.nature: 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. Read SEC document
August 27, 2025 Filed Sep 2, 2025 21:07 UTC	Hadron Energy, Inc. GIGGU · Entity 6554	GiftClass B ordinary shares · Derivative	100,000	Not disclosed	Not disclosed	Disclosure SEC source: 0001062993-25-015177 · form4.xml · derivative · entry 1 Katz Avi S · CIK 0001451693 · Director · 10% owner GigAcquisitions7 Corp. · CIK 0002023728 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: No plan indicated Ownership: Indirect · GigAcquisitions7 Corp. Disclosed balance after: 10,107,246 Underlying: Class A ordinary shares · 100,000 shares Expires not disclosed F1 · derivative.exercise_price: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F2 · kind: The reporting person transferred 100,000 shares of Class B ordinary shares for no consideration to a non-affiliated charitable organization, which the reporting person holds indirectly through GigAcquisitions7 Corp. F1 · price: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F1 · derivative.exercise_date: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F1 · derivative.expiration_date: The Class B ordinary shares are convertible for the Issuer's Class A ordinary shares as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-280015) and have no expiration date. F3 · ownership.nature: 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 Chairman of the Board of Directors, and Dr. Raluca Dinu, GigCapital7 Corp.'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. Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.