STOCK TITAN

Merger grants boost Hadron Energy (HDRN) sponsor and director stakes

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Hadron Energy, Inc. insiders reported equity awards and restructurings tied to the closing of the merger between Hadron and a subsidiary of GigCapital7 Corp. Sponsor entity GigAcquisitions7 Corp. exercised 9,932,246 Class B ordinary shares into 9,932,246 shares of common stock, all held indirectly.

Dr. Avi S. Katz and Dr. Raluca Dinu each received 87,500 common shares, one block held directly and one indirectly through Dr. Dinu as spouse, in exchange for 1,750.04 Hadron shares each under the merger exchange ratio. The filing notes these acquisitions are exempt under Rule 16b-3. In connection with the merger closing, a convertible promissory note related to 29,300 underlying warrants and 29,300 Class A ordinary shares was fully paid off, and no remaining derivative positions are shown.

Positive

  • None.

Negative

  • None.
Insider Katz Avi S, GigAcquisitions7 Corp., Dinu Raluca
Role Chairman | null | null
Type Security Shares Price Value
Exercise Class B ordinary shares 9,932,246 $0.00 --
Other Convertible Promissory Note 29,300 $0.00 --
Other Convertible Promissory Note 29,300 $0.00 --
Grant/Award Common Stock 87,500 $0.00 --
Grant/Award Common Stock 87,500 $0.00 --
Grant/Award Common Stock 9,932,246 $0.00 --
Holdings After Transaction: Class B ordinary shares — 0 shares (Indirect, GigAcquisitions7 Corp.); Convertible Promissory Note — 0 shares (Indirect, GigAcquisitions7 Corp.); Common Stock — 87,500 shares (Direct, null); Common Stock — 87,500 shares (Indirect, By Spouse, Dr. Raluca Dinu)
Footnotes (1)
  1. 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. The closing price of the Company's Common Stock on the effective date of the Merger was $5.16. 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. 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. In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full.
Common shares via sponsor 9,932,246 shares Common stock held indirectly by GigAcquisitions7 Corp. after Class B conversion
Katz indirect award 87,500 shares Common stock held indirectly through spouse Dr. Raluca Dinu
Katz direct award 87,500 shares Common stock held directly following grant/award acquisition
Convertible note underlying warrants 29,300 warrants Underlying security related to convertible promissory note reclassified in merger
Convertible note underlying Class A shares 29,300 shares Class A ordinary shares underlying the convertible promissory note
Stock price at merger $5.16 Closing price of common stock on the merger effective date
Exercised Class B shares 9,932,246 shares Class B ordinary shares exercised into common stock by sponsor
Restructuring shares 58,600 shares Shares tied to restructuring transactions in convertible note and underlying securities
Rule 16b-3 regulatory
"The acquisition of these shares is an exempt transaction under Rule 16b-3, promulgated by the U.S. Securities and Exchange..."
Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.
Convertible Promissory Note financial
"In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full."
A convertible promissory note is a loan a company takes now that can later be turned into shares instead of being repaid in cash. Think of it as lending money with the option to accept ownership in the business down the road; that matters to investors because it affects who gets paid first, how much ownership existing shareholders keep, and the company’s future valuation and cash needs. Terms such as conversion price, interest and maturity determine the financial impact.
Class B ordinary shares financial
"Class B ordinary shares transaction with 9,932,246.0000 shares exercised into common stock."
Class B ordinary shares are a type of ownership stake in a company that typically come with different voting rights or privileges compared to other share classes. For investors, they represent a way to hold part of the company’s value and influence its decisions, often with fewer voting rights than Class A shares. Understanding these shares helps investors assess their level of control and potential returns within a company.
warrants financial
"underlying_security_title": "Warrants", "underlying_security_shares": "29300.0000""
Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.
voting and dispositive power financial
"Dr. Katz and Dr. Dinu... both have the voting and dispositive power over the shares held by the Sponsor."
SEC Form 4
FORM 4UNITED 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
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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 GIGACQUISITIONS7 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
Hadron Energy, Inc. [ HDRN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
Chairman
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/22/2026A87,500(1)A(2)87,500D
Common Stock05/22/2026A87,500(3)A(2)87,500IBy Spouse, Dr. Raluca Dinu
Common Stock05/22/2026A9,932,246(4)A(2)9,932,246IBy GigAcquisitions7 Corp.(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Class B ordinary shares(2)05/22/2026M9,932,24605/22/202605/22/2026Common Stock9,932,246(2)0IGigAcquisitions7 Corp.(4)
Convertible Promissory Note(5)05/22/2026J29,30005/22/202605/22/2026Class A ordinary shares29,300(5)0IGigAcquisitions7 Corp.(4)
Convertible Promissory Note(5)05/22/2026J29,30005/22/202605/22/2026Warrants29,300(5)0IGigAcquisitions7 Corp.(4)
1. Name and Address of Reporting Person*
Katz Avi S

(Last)(First)(Middle)
C/O GIGACQUISITIONS7 CORP.
1731 EMBARCADERO RD, SUITE 200

(Street)
PALO ALTO CALIFORNIA 94303

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
Chairman
1. Name and Address of Reporting Person*
GigAcquisitions7 Corp.

(Last)(First)(Middle)
C/O GIGACQUISITIONS7 CORP.
1731 EMBARCADERO RD, SUITE 200

(Street)
PALO ALTO CALIFORNIA 94303

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
DirectorX10% Owner
Officer (give title below)Other (specify below)
1. Name and Address of Reporting Person*
Dinu Raluca

(Last)(First)(Middle)
C/O GIGACQUISITIONS7 CORP.
1731 EMBARCADERO RD, SUITE 200

(Street)
PALO ALTO CALIFORNIA 94303

(City)(State)(Zip)

UNITED STATES

(Country)

Relationship of Reporting Person(s) to Issuer
XDirectorX10% Owner
Officer (give title below)Other (specify below)
Explanation of Responses:
1. 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.
2. The closing price of the Company's Common Stock on the effective date of the Merger was $5.16.
3. 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.
4. 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.
5. In connection with the closing of the Merger, the principal balance of the convertible promissory note was paid in full.
/s/ Dr. Avi S. Katz, individually05/27/2026
/s/ Dr. Avi S. Katz, as managing member of GigAcquisitions7 Corp.05/27/2026
/s/ Dr. Raluca Dinu, individually05/27/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did Hadron Energy (HDRN) report in this Form 4?

The Form 4 shows insiders acquiring common stock and restructuring securities in connection with Hadron’s merger into a GigCapital7 Corp. subsidiary, including large indirect holdings through the sponsor entity GigAcquisitions7 Corp.

How many Hadron Energy shares did the sponsor GigAcquisitions7 Corp. receive?

GigAcquisitions7 Corp. exercised 9,932,246 Class B ordinary shares into 9,932,246 shares of Hadron Energy common stock. These shares are beneficially owned by Dr. Avi S. Katz and Dr. Raluca Dinu, who control voting and dispositive power.

What did Dr. Avi S. Katz and Dr. Raluca Dinu receive in the Hadron Energy merger?

Each of Dr. Avi S. Katz and Dr. Raluca Dinu received 87,500 Hadron Energy common shares, one direct and one indirect through Dr. Dinu as spouse. These shares were exchanged for 1,750.04 Hadron shares each under the merger exchange ratio.

Were the Hadron Energy insider share awards open-market purchases or exempt grants?

The insider acquisitions were exempt grants tied to the merger. Footnotes state the common shares were received in exchange for Hadron shares under the business combination agreement and are exempt transactions under Rule 16b-3 of the Securities Exchange Act.

What happened to the Hadron Energy convertible promissory note mentioned in the Form 4?

The Form 4 notes that, in connection with the merger closing, the principal balance of the convertible promissory note was paid in full. Related derivative entries reference 29,300 underlying warrants and 29,300 Class A ordinary shares associated with that note.

What was Hadron Energy’s common stock price at the merger effective date?

Footnotes state the closing price of Hadron Energy’s common stock on the merger’s effective date was $5.16. This price provides context for the value of the shares received by insiders and the sponsor when the business combination became effective.