Company: GIGGU
Filing Date: 2025-11-12
Form Type: S-4
Source: 0001193125-25-277896
Chunk: 2

Company: GigCapital7 Corp.
Filing Date: 2025-11-12
Form: S-4
Chunk 2
---
 delay its effective date until the Registrant and Co-Registrantshall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the registration statement shall become effective on such date as the U.S. Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

TABLE OF CO-REGISTRANTS

| Exact Name ofCo-Registrantas Specified in its Charter(1)(2) |     | State or OtherJurisdiction ofIncorporationor Organization |          |     | PrimaryStandardIndustrialClassificationCode Number |      |     | I.R.S.EmployerIdentificationNumber |            |
| Hadron Energy, Inc.                                         |     |                                                           | Delaware |     |                                                    | 4911 |     |                                    | 33-4336458 |

| (1) | The Co-Registrant has the following principal executive office: |

Hadron Energy, Inc. 3 Twin Dolphin Drive, STE 260, Redwood City, CA 94065 Telephone: 650-395-0050

| (2) | The agent for service for the Co-Registrant is: |

Hadron Energy, Inc. 3 Twin Dolphin Drive, STE 260 Redwood City, CA 94065 The information in this preliminary proxy statement/prospectus is not complete and may be changed. These securities may not be issued until the registration statement filed with the U.S. Securities and Exchange Commission is effective. This preliminary proxy statement/prospectus is not an offer to sell these securities and does not constitute the solicitation of an offer to buy these securities in any jurisdiction where the offer or sale is not permitted. PRELIMINARY—SUBJECT TO COMPLETION DATED NOVEMBER 12, 2025 PROXY STATEMENT FOR EXTRAORDINARY GENERAL MEETING OF GIGCAPITAL 7 CORP. (A CAYMAN ISLANDS EXEMPTED COMPANY) AND PROSPECTUS FOR UP TO 143,226,087 SHARES OF COMMON STOCK, AND 20,000,000 WARRANTS TO PURCHASE SHARES OF COMMON STOCK OF GIGCAPITAL 7 CORP. (TO BE RENAMED “HADRON ENERGY, INC.” EFFECTIVE IMMEDIATELY FOLLOWING THE CONSUMMATION OF THE BUSINESS COMBINATION DESCRIBED HEREIN) The board of directors of GigCapital7 Corp., a Cay