---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-235847"
form_type: "8-K"
ticker: "GIW"
cik: "0002080019"
company_name: "GigCapital8 Corp."
filed_at: "2025-10-09T23:59:59+00:00"
generated_at: "2026-05-17T04:15:18.929864+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# GigCapital8 closes IPO of 25.3M units at $10 for $253M in gross proceeds

## Summary
- IPO closed Oct 7: 25,300,000 units (incl. 3.3M over-allotment) at $10/unit, gross proceeds $253M.
- Net $253M deposited in trust; SPAC must complete initial business combination within 24 months.
- Private placements: 95,200 units to sponsor/directors/Lynrock at $9.7374 ($927K); others bought Class B shares and units for $2.6M.
- Board audit committee: Horowitz, Machuca, Timm; compensation: Horowitz, Dagul, Greene; nominating: Ben-Bashat, Greene, Machuca.

## SEC filing metadata
- accession: 0001193125-25-235847
- form_type: 8-K
- ticker: GIW
- cik: 0002080019
- company_name: GigCapital8 Corp.
- filed_at: 2025-10-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01, 3.02, 5.02, 5.03, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2080019/000119312525235847/0001193125-25-235847-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2080019/000119312525235847/d87287d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-235847
- JSON: https://secwatch.observer/filing/0001193125-25-235847.json
- Plain text: https://secwatch.observer/filing/0001193125-25-235847.txt

## Key facts
- Equity Issuances
  GigCapital8 Corp. issued 95,200 units of unit to the Sponsor, four of the Company’s directors and Lynrock Lake Master Fund LP for $9.7374 per unit.
  - Security: unit
  - Shares: 95,200 units
  - Purchaser: the Sponsor, four of the Company’s directors and Lynrock Lake Master Fund LP
  - Consideration: $9.7374 per unit
  source text: Simultaneously with the closing of the IPO, the Company completed the private sale and issuance of an aggregate of 95,200 units (the “ Private Placement Units”) to the Sponsor, four of the Company’s directors and Lynrock Lake Master Fund LP at a price of $9.7374 per unit, generating gross proceeds to the Company of $927,000.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2080019/000119312525235847/0001193125-25-235847-index.htm
- Equity Issuances
  GigCapital8 Corp. issued 2,964,203 Class B ordinary shares of common stock to certain non-managing investors for $0.023254 per share.
  - Security: common stock
  - Shares: 2,964,203 Class B ordinary shares
  - Purchaser: certain non-managing investors
  - Consideration: $0.023254 per share
  source text: an aggregate of 2,964,203 Class B ordinary shares of the Company, par value of $0.0001 per share (“ Class B Ordinary Shares ”) at a price of $0.023254 per share
  evidence_url: https://www.sec.gov/Archives/edgar/data/2080019/000119312525235847/0001193125-25-235847-index.htm
- Governance Changes
  GigCapital8 Corp.: Adopted First Amended and Restated Memorandum and Articles of Association in connection with IPO (effective 2025-10-03).
  - Change: charter amendment
  - Effective: 2025-10-03
  source text: On October 3, 2025, in connection with the IPO, the Company adopted its First Amended and Restated Memorandum and Articles of Association (the “ Amended and Restated Articles ”), effective the same day.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2080019/000119312525235847/0001193125-25-235847-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.