Cartesian Growth Corp III 8-K

What Happened

• Cartesian Growth Corp III (CGCT) filed an 8-K on March 24, 2026 (Item 7.01) to furnish an updated investor presentation related to the previously announced Business Combination Agreement dated December 17, 2025 among Cartesian III, Merger Sub (Fenway MS, Inc.) and Factorial Inc.
• The updated presentation is attached to the filing as Exhibit 99.1 (dated March 24, 2026) and may be used by Cartesian III and Factorial in meetings with potential investors and other persons regarding the proposed business combination.

Key Details

• Business Combination Agreement originally executed: December 17, 2025.
• Merger Sub named in the agreement: Fenway MS, Inc. (Delaware).
• Exhibit furnished with this 8-K: Investor Presentation dated March 24, 2026 (Exhibit 99.1).
• Interactive data: Cover Page Interactive Data File included in Inline XBRL (Exhibit 104).

Why It Matters

• The filing makes updated presentation materials publicly available about the proposed merger between Cartesian III and Factorial, which investors can review to get current information presented to potential investors.
• This is a Regulation FD disclosure (broad public distribution of material information); it does not itself change deal terms or report financial results. Investors should review the attached presentation and watch for future SEC filings for any material changes or formal approvals related to the transaction.