---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-031857"
form_type: "8-K"
ticker: "GIX"
cik: "0002098712"
company_name: "GigCapital9 Corp."
filed_at: "2026-01-30T23:59:59+00:00"
generated_at: "2026-05-16T06:09:45.079633+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# GigCapital9 closes $253M SPAC IPO; 25.3M units at $10.00

## Summary
- IPO of 25,300,000 units at $10.00/unit for $253M gross proceeds; full over-allotment of 3.3M units exercised.
- Each unit consists of one Class A share and one right to receive one-fifth of a share; rights convert upon business combination.
- $253M placed in trust; funds released only upon business combination, amendment, or redemption within 24 months.
- Private placements: 107,500 units at $9.7374 to sponsor/directors, plus 3.46M Class B shares and 281,454 units to non-managing investors for ~$3.86M.
- New directors appointed to Audit (Bryan Timm chair), Compensation (Luis Machuca chair), and Nominating (Raanan Horowitz chair) committees.

## SEC filing metadata
- accession: 0001193125-26-031857
- form_type: 8-K
- ticker: GIX
- cik: 0002098712
- company_name: GigCapital9 Corp.
- filed_at: 2026-01-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- 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/2098712/000119312526031857/0001193125-26-031857-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2098712/000119312526031857/d788016d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-031857
- JSON: https://secwatch.observer/filing/0001193125-26-031857.json
- Plain text: https://secwatch.observer/filing/0001193125-26-031857.txt

## Source-grounded claims
- claim_id: 002558981f0e739053ce68737a7ebd45fcfa4c38
  claim: GigCapital9 Corp.: Adopted First Amended and Restated Memorandum and Articles of Association in connection with IPO (effective 2026-01-26).
  evidence_excerpt: Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year On January 26, 2026, 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/2098712/000119312526031857/0001193125-26-031857-index.htm
- claim_id: 3fb796be3b8b252ff459d6ddd7caa816531cfd0d
  claim: GigCapital9 Corp. entered into Administrative Services Agreement with GigManagement, LLC (effective 2026-01-26).
  evidence_excerpt: An Administrative Services Agreement, dated January 26, 2026, by and between the Company and GigManagement, LLC, a copy of which is attached as Exhibit 10.4 hereto and incorporated herein by reference
  evidence_url: https://www.sec.gov/Archives/edgar/data/2098712/000119312526031857/0001193125-26-031857-index.htm
- claim_id: 703adf7be7e15b83effd352042f107f72cae7bc8
  claim: GigCapital9 Corp. entered into Rights Agreement with Continental Stock Transfer & Trust Company (effective 2026-01-26).
  evidence_excerpt: A Rights Agreement, dated January 26, 2026, by and between the Company and Continental Stock Transfer & Trust Company, as rights agent, a copy of which is attached as Exhibit 4.1 hereto and incorporated herein by reference
  evidence_url: https://www.sec.gov/Archives/edgar/data/2098712/000119312526031857/0001193125-26-031857-index.htm
- claim_id: b8ddb1629ef914af7b742ece5eacdbe22233a0cd
  claim: GigCapital9 Corp. entered into Investment Management Trust Agreement with Continental Stock Transfer & Trust Company (effective 2026-01-26).
  evidence_excerpt: An Investment Management Trust Agreement, dated January 26, 2026, by and between the Company and Continental Stock Transfer & Trust Company, as trustee, a copy of which is attached as Exhibit 10.3 hereto and incorporated herein by reference
  evidence_url: https://www.sec.gov/Archives/edgar/data/2098712/000119312526031857/0001193125-26-031857-index.htm
- claim_id: d1590bfdba9c6c48ba8c2c42558e47529ea45d69
  claim: GigCapital9 Corp. entered into Registration Rights Agreement with Sponsor and certain other security holders named therein (effective 2026-01-26).
  evidence_excerpt: A Registration Rights Agreement, dated January 26, 2026, by and among the Company, the Sponsor, and certain other security holders named therein, a copy of which is attached as Exhibit 10.2 hereto and incorporated herein by reference
  evidence_url: https://www.sec.gov/Archives/edgar/data/2098712/000119312526031857/0001193125-26-031857-index.htm
- claim_id: db370f01d30aadaad82969cd6df628caba6ed9b9
  claim: GigCapital9 Corp. entered into Underwriting Agreement with D. Boral Capital LLC (effective 2026-01-26).
  evidence_excerpt: An Underwriting Agreement, dated January 26, 2026, by and between the Company and D. Boral Capital LLC (" DBC "), acting as representative of the underwriters named therein, which contains customary representations and warranties and indemnification of the underwriters by the Company and is attached as Exhibit 1.1 hereto and incorporated herein by reference
  evidence_url: https://www.sec.gov/Archives/edgar/data/2098712/000119312526031857/0001193125-26-031857-index.htm

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