---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-035436"
form_type: "8-K"
ticker: "CGCT"
cik: "0002049662"
company_name: "Cartesian Growth Corp III"
filed_at: "2026-03-27T23:59:59+00:00"
generated_at: "2026-05-15T08:44:15.537299+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Cartesian Growth III amends BCA with Factorial; clarifies redemption timing, removes warrant exchange

## Summary
- BCA Amendment clarifies shareholder redemption must occur at least one day prior to domestication; new Section 2.1(a) added.
- BCA Amendment removes references to CGC Private Warrant Exchange Agreement and CGC Public/Private Warrants Exchange; Sections 5.21 and 5.22 reserved.
- Nasdaq Proposal split into two: BCA Stock Issuance Proposal and PIPE Stock Issuance Proposal.
- Sponsor Support Amendment eliminates sponsor's obligation to vote private warrants and removes private warrant exchange provisions.

## SEC filing metadata
- accession: 0001104659-26-035436
- form_type: 8-K
- ticker: CGCT
- cik: 0002049662
- company_name: Cartesian Growth Corp III
- filed_at: 2026-03-27T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2049662/000110465926035436/0001104659-26-035436-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2049662/000110465926035436/tm269874d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-035436
- JSON: https://secwatch.observer/filing/0001104659-26-035436.json
- Plain text: https://secwatch.observer/filing/0001104659-26-035436.txt

## Key facts
- Material Agreements
  Cartesian Growth Corp III amended Business Combination Agreement with Fenway MS, Inc. and Factorial Inc. (effective 2026-03-26).
  - Action: amendment
  - Agreement: merger
  - Counterparty: Fenway MS, Inc. and Factorial Inc.
  - Effective: 2026-03-26
  source text: On March 26, 2026, Cartesian III, Merger Sub and Factorial entered into an Amendment to the Business Combination Agreement (the “BCA Amendment”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2049662/000110465926035436/0001104659-26-035436-index.htm
- Material Agreements
  Cartesian Growth Corp III amended Sponsor Support Agreement with CGC III Sponsor LLC and Factorial Inc. (effective 2026-03-26).
  - Action: amendment
  - Counterparty: CGC III Sponsor LLC and Factorial Inc.
  - Effective: 2026-03-26
  source text: On March 26, 2026, Sponsor and Factorial entered into an Amendment to the Sponsor Support Agreement (the “SSA Amendment”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2049662/000110465926035436/0001104659-26-035436-index.htm

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