# EDGAR Filing Document

**Accession Number:** 0002023730
**File Stem:** 9999999995-26-001191
**Filing Date:** 2026-4
**Character Count:** 2117
**Document Hash:** 6b7709c019f7f12b6fc29ba02910da1a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-26-001191.hdr.sgml**: 20260416

**ACCESSION NUMBER**: 9999999995-26-001191

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260415

**DATE AS OF CHANGE**: 20260416

**EFFECTIVENESS DATE**: 20260415

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GigCapital7 Corp.
- **CENTRAL INDEX KEY:** 0002023730
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 981790710
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-291477
- **FILM NUMBER:** 26865531

**BUSINESS ADDRESS:**
- **STREET 1:** 1731 EMBARCADERO RD., SUITE 200
- **CITY:** PALO ALTO
- **STATE:** CA
- **ZIP:** 94303
- **BUSINESS PHONE:** 650.276.7040

**MAIL ADDRESS:**
- **STREET 1:** 1731 EMBARCADERO RD., SUITE 200
- **CITY:** PALO ALTO
- **STATE:** CA
- **ZIP:** 94303
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Hadron Energy, Inc.
- **CENTRAL INDEX KEY:** 0002091991
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 334336458
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-291477-01
- **FILM NUMBER:** 26865532

**BUSINESS ADDRESS:**
- **STREET 1:** 3 TWIN DOLPHIN DRIVE, STE 260
- **CITY:** REDWOOD CITY
- **STATE:** CA
- **ZIP:** 94065
- **BUSINESS PHONE:** 605-929-7913

**MAIL ADDRESS:**
- **STREET 1:** 3 TWIN DOLPHIN DRIVE, STE 260
- **CITY:** REDWOOD CITY
- **STATE:** CA
- **ZIP:** 94065

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** April 15, 2026

**Time:** 16:00:00

**Form Type:** S-4

---

**CIK:** 0002023730

**Company Name:** GigCapital7 Corp.

**File Number:** 333-291477

---

**CIK:** 0002091991

**Company Name:** Hadron Energy, Inc.

**File Number:** 333-291477-01