---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-063016"
form_type: "8-K"
ticker: "CGCT"
cik: "0002049662"
company_name: "Cartesian Growth Corp III"
filed_at: "2026-05-18T12:00:23+00:00"
generated_at: "2026-05-18T12:08:49.798861+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Cartesian Growth Corp III Amends SPAC Merger; Factorial Name Change, PIPE Adjustment

## Summary
- Amendment No. 2 to merger agreement changes post-closing name to 'Factorial Energy Inc.' from Cartesian Growth Corp III.
- Institutional investor's 7.5M-share PIPE obligation partially satisfied via open market purchases of up to 2M Class A shares.
- Sponsor agrees to transfer Class B shares equal to (Differential Amount / $10) at closing; Factorial reimburses Sponsor in cash.
- Differential Amount is excess of actual purchase price over $10 per share for open market shares.

## SEC filing metadata
- accession: 0001104659-26-063016
- form_type: 8-K
- ticker: CGCT
- cik: 0002049662
- company_name: Cartesian Growth Corp III
- filed_at: 2026-05-18T12:00:23+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2049662/000110465926063016/0001104659-26-063016-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2049662/000110465926063016/tm2614914d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-063016
- JSON: https://secwatch.observer/filing/0001104659-26-063016.json
- Plain text: https://secwatch.observer/filing/0001104659-26-063016.txt

## Key facts
- Material Agreements
  Cartesian Growth Corp III entered into Letter Agreement with Institutional Investor, Factorial, and CGC III Sponsor LLC (effective 2026-05-18).
  - Action: entry
  - Counterparty: Institutional Investor, Factorial, and CGC III Sponsor LLC
  - Effective: 2026-05-18
  source text: On May 18, 2026, the Institutional Investor entered into an agreement (the “Letter Agreement”) with Factorial and CGC III Sponsor LLC
  evidence_url: https://www.sec.gov/Archives/edgar/data/2049662/000110465926063016/0001104659-26-063016-index.htm
- Material Agreements
  Cartesian Growth Corp III amended Amendment No. 2 to the Business Combination Agreement with Factorial Inc. (effective 2026-05-18).
  - Action: amendment
  - Agreement: merger
  - Counterparty: Factorial Inc.
  - Effective: 2026-05-18
  source text: On May 18, 2026, Cartesian III, Merger Sub and Factorial entered into Amendment No. 2 to the Business Combination Agreement (the “BCA Amendment”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2049662/000110465926063016/0001104659-26-063016-index.htm

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