---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-242343"
form_type: "8-K"
ticker: "GIG"
cik: "0002023730"
company_name: "GigCapital7 Corp."
filed_at: "2026-05-27T22:39:35+00:00"
generated_at: "2026-05-28T10:09:31.661113+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Hadron Energy completes SPAC merger with GigCapital7; net cash ~$24.5M, zero debt

## Summary
- 84% of GigCapital7 public shares redeemed (16.8M shares) for ~$180.3M; remaining trust ~$28M.
- Total cash at close ~$31M from trust and $2.8M SAFE bridge; after ~$6.5M expenses, net cash ~$24.5M with zero debt.
- Combined company renamed Hadron Energy, Inc.; stock begins trading May 26 under HDRN (common) and HDRNW (warrants).
- First publicly traded light-water micro-modular reactor firm; pro forma equity valuation ~$766M.
- Halo MMR: 10 MWe, factory-built, 10-year refueling cycle; Principal Design Criteria whitepaper submitted to NRC April 22, 2026.

## SEC filing metadata
- accession: 0001193125-26-242343
- form_type: 8-K
- ticker: GIG
- cik: 0002023730
- company_name: GigCapital7 Corp.
- filed_at: 2026-05-27T22:39:35+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2023730/000119312526242343/0001193125-26-242343-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2023730/000119312526242343/d23892d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-242343
- JSON: https://secwatch.observer/filing/0001193125-26-242343.json
- Plain text: https://secwatch.observer/filing/0001193125-26-242343.txt

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