---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-114019"
form_type: "8-K"
ticker: "GCTS"
cik: "0001851961"
company_name: "GCT Semiconductor Holding, Inc."
filed_at: "2023-11-03T23:59:59+00:00"
generated_at: "2026-06-08T22:43:00.315419+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Concord Acquisition Corp III to merge with GCT Semiconductor at $661M valuation, up to $87M proceeds

## Summary
- Pro forma valuation of GCT at $661M including 20.0M performance-based earnout shares.
- Enterprise value ~$461M at closing; gross proceeds up to $87M from PIPE, convertible note, and trust.
- $43M fully committed PIPE and convertible note financing from existing and new investors.
- Transaction expected to close in Q1 2024; combined company to list on NYSE as "GCTS".
- All GCT existing stockholders retain their equity through the transition to public company.

## SEC filing metadata
- accession: 0001104659-23-114019
- form_type: 8-K
- ticker: GCTS
- cik: 0001851961
- company_name: GCT Semiconductor Holding, Inc.
- filed_at: 2023-11-03T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1851961/000110465923114019/0001104659-23-114019-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1851961/000110465923114019/tm2329797d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-114019
- JSON: https://secwatch.observer/filing/0001104659-23-114019.json
- Plain text: https://secwatch.observer/filing/0001104659-23-114019.txt

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