---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-122322"
form_type: "8-K"
ticker: "CGCT"
cik: "0002049662"
company_name: "Cartesian Growth Corp III"
filed_at: "2025-12-18T23:59:59+00:00"
generated_at: "2026-05-16T12:49:01.836959+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# CGC SPAC to merge with Factorial in $1.1B deal; solid-state battery focus

## Summary
- Business Combination Agreement signed Dec 17, 2025; Factorial valued at implied $1.1B fully-diluted equity.
- PIPE financing of $100M ($25M sponsor, $75M institutional) to support post-merger growth.
- Factorial's solid-state cells validated with Mercedes-Benz (1,200 km range) and Stellantis.
- Closing expected mid-2026; subject to shareholder approvals, HSR clearance, and Nasdaq listing.
- Lock-up structure: 25% at 180 days, 25% at 270 days, 50% at 1 year post-closing.

## SEC filing metadata
- accession: 0001104659-25-122322
- form_type: 8-K
- ticker: CGCT
- cik: 0002049662
- company_name: Cartesian Growth Corp III
- filed_at: 2025-12-18T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 3.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2049662/000110465925122322/0001104659-25-122322-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2049662/000110465925122322/tm2533742d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-122322
- JSON: https://secwatch.observer/filing/0001104659-25-122322.json
- Plain text: https://secwatch.observer/filing/0001104659-25-122322.txt

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