Summary
Updated Aug 31, 2026
CGC III Sponsor LLC is 10% Owner of Cartesian Growth Corp III (FAC). 5 SEC Form 4 filings on record, most recently on 9 June 2026. Most recent open-market trade: bought $63K of FAC on 23 May 2026. Lifetime open-market purchases: $15.47M.
Recent Transactions
13Every recent SEC Form 4 transaction CGC III Sponsor LLC has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| Total purchases tracked | 12 |
Trading Pattern
InsiderAlpha's records for CGC III Sponsor LLC go back to 2026: 5 primary Form 4 filings, an average of 5.0 per year. The typical open-market purchase is $1.29M (12 buys totaling $15.47M). The largest single buy on record is $6.91M of FAC in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Most Active Insiders Right Now
CGC III Sponsor LLC has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- SRB CORP - $135.04M of SAFT open-market activity in the last 90 days
- Coliseum Capital Management, LLC - $124.20M of UTI open-market activity in the last 90 days
- Andrew Stafman - $123.54M of TWLO open-market activity in the last 90 days
- Vyacheslav Kim - $119.18M of KSPI open-market activity in the last 90 days
- Olivier Pomel - $118.60M of DDOG open-market activity in the last 90 days
- Patrizio Vinciarelli - $118.12M of VICR open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
What is CGC III Sponsor LLC?
CGC III Sponsor LLC is a corporate entity, tracked as 10% Owner of Cartesian Growth Corp III (FAC). InsiderAlpha holds 5 primary Form 4 filings for it, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has CGC III Sponsor LLC submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has CGC III Sponsor LLC been buying or selling stock?
Recorded transactions: 12 open-market purchases ($15.47M) and 0 open-market sales across all tracked filings.
How accurate is CGC III Sponsor LLC's historical track record?
Across 12 tracked purchases, CGC III Sponsor LLC averaged no 30-day data yet with a win rate pending.
Where can I see all of CGC III Sponsor LLC's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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