---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-071597"
form_type: "8-K"
ticker: "HCMA"
cik: "0002069856"
company_name: "HCM III ACQUISITION CORP."
filed_at: "2025-08-05T23:59:59+00:00"
generated_at: "2026-05-17T21:06:41.559263+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# HCM III Acquisition Corp closes $253M IPO, including full over-allotment

## Summary
- Closed IPO of 25,300,000 units at $10.00/unit, generating $253M gross proceeds.
- Underwriter's over-allotment of 3,300,000 units fully exercised.
- Placed $253M in trust account; funds held for initial business combination within 24 months.
- Private placement of 4,266,667 warrants at $1.50 each raised $6.4M.
- SPAC targets disruptive tech/innovation businesses in financial services.

## SEC filing metadata
- accession: 0001213900-25-071597
- form_type: 8-K
- ticker: HCMA
- cik: 0002069856
- company_name: HCM III ACQUISITION CORP.
- filed_at: 2025-08-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 3.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2069856/000121390025071597/0001213900-25-071597-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2069856/000121390025071597/ea0251478-8k_hcm3.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-071597
- JSON: https://secwatch.observer/filing/0001213900-25-071597.json
- Plain text: https://secwatch.observer/filing/0001213900-25-071597.txt

## Key facts
- Governance Changes
  HCM III ACQUISITION CORP.: The Company approved its Amended and Restated Memorandum and Articles of Association (effective 2025-07-31).
  - Change: charter amendment
  - Effective: 2025-07-31
  source text: The Company’s Amended and Restated Memorandum and Articles of Association (the “ Memorandum and Articles ”) was approved on July 31, 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2069856/000121390025071597/0001213900-25-071597-index.htm

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