# EDGAR Filing Document

**Accession Number:** 0002080019
**File Stem:** 9999999995-25-003200
**Filing Date:** 2025-9
**Character Count:** 1285
**Document Hash:** b39810b9d84feeb041fc1a7cbdee9d27
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-25-003200.hdr.sgml**: 20251001

**ACCESSION NUMBER**: 9999999995-25-003200

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250930

**DATE AS OF CHANGE**: 20251001

**EFFECTIVENESS DATE**: 20250930

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GigCapital8 Corp.
- **CENTRAL INDEX KEY:** 0002080019
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 981868645
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-289479
- **FILM NUMBER:** 251362385

**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

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

## Notice of Effectiveness

**Date:** September 30, 2025

**Time:** 16:30:00

**Form Type:** S-1

---

**CIK:** 0002080019

**Company Name:** GigCapital8 Corp.

**File Number:** 333-289479