---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-21-136168"
form_type: "8-K"
ticker: "GCTS"
cik: "0001851961"
company_name: "GCT Semiconductor Holding, Inc."
filed_at: "2021-11-09T23:59:59+00:00"
generated_at: "2026-06-28T11:02:23.245906+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Concord Acquisition Corp III closes upsized $345M IPO, full over-allotment exercised

## Summary
- Gross proceeds of $345M from 34.5M units at $10/unit, including 4.5M over-allotment units.
- Private placement of 9.4M warrants at $1.00 each to sponsor and CA2 Co-Investment for $9.4M.
- Sponsor loans of $6.9M via promissory notes, convertible to warrants at $1.00 per warrant.
- Trust account funded with $351.9M from IPO, private placement, and sponsor loan proceeds.
- Board appointed: Peter Ort, Thomas King, Larry Leibowitz effective November 3, 2021.

## SEC filing metadata
- accession: 0001104659-21-136168
- form_type: 8-K
- ticker: GCTS
- cik: 0001851961
- company_name: GCT Semiconductor Holding, Inc.
- filed_at: 2021-11-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 5.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1851961/000110465921136168/0001104659-21-136168-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1851961/000110465921136168/tm2132193d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-21-136168
- JSON: https://secwatch.observer/filing/0001104659-21-136168.json
- Plain text: https://secwatch.observer/filing/0001104659-21-136168.txt

## Key facts
- Executive change
  Peter Ort was appointed as director at GCT Semiconductor Holding, Inc..
  - Action: appointed
  - Role: director
  source text: Effective as of November 3, 2021, the following individuals were appointed to the board of directors of the Company: Peter Ort, Thomas King and Larry Leibowitz.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1851961/000110465921136168/0001104659-21-136168-index.htm
- Executive change
  Thomas King was appointed as director at GCT Semiconductor Holding, Inc..
  - Action: appointed
  - Role: director
  source text: Effective as of November 3, 2021, the following individuals were appointed to the board of directors of the Company: Peter Ort, Thomas King and Larry Leibowitz.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1851961/000110465921136168/0001104659-21-136168-index.htm
- Executive change
  Larry Leibowitz was appointed as director at GCT Semiconductor Holding, Inc..
  - Action: appointed
  - Role: director
  source text: Effective as of November 3, 2021, the following individuals were appointed to the board of directors of the Company: Peter Ort, Thomas King and Larry Leibowitz.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1851961/000110465921136168/0001104659-21-136168-index.htm

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