---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-24-037870"
form_type: "8-K"
ticker: "IMSR"
cik: "0002019804"
company_name: "Terrestrial Energy Inc. /DE/"
filed_at: "2024-08-20T23:59:59+00:00"
generated_at: "2026-05-31T08:33:53.009630+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# HCM II Acquisition Corp. closes $230M IPO, including full over-allotment

## Summary
- 23,000,000 units at $10.00 each, gross proceeds $230M; units trade on Nasdaq as HONDU.
- Private placement of 6,850,000 warrants at $1.00 each to sponsor and underwriter, raising $6.85M.
- Total trust proceeds $231.15M placed with Continental Stock Transfer, locked until business combination or 24 months.
- SPAC focus on established businesses; management led by Shawn Matthews (CEO) and Steven Bischoff (CFO).
- Underwriter Cantor Fitzgerald sole bookrunner; over-allotment fully exercised.

## SEC filing metadata
- accession: 0001140361-24-037870
- form_type: 8-K
- ticker: IMSR
- cik: 0002019804
- company_name: Terrestrial Energy Inc. /DE/
- filed_at: 2024-08-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 3.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2019804/000114036124037870/0001140361-24-037870-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2019804/000114036124037870/ny20027439x13_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-24-037870
- JSON: https://secwatch.observer/filing/0001140361-24-037870.json
- Plain text: https://secwatch.observer/filing/0001140361-24-037870.txt

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