Cartesian Growth Corporation III
Cartesian Growth Corporation III (CGCT) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CGCT · as of Sep 30, 2025
Ownership Breakdown
52
Institutional Holders
▲ 16 vs Q2
$242.07M
Total Inst. Value
▲ $92.96M vs Q2
27.60M
Shares Outstanding
freeFloat 100.00%
24.10M
13F Shares Held
▲ 9.21M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CGCT largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
PICTON MAHONEY ASSET MANAGEMENT blank checks | 2.00M | 7.25% | 7.25% | $20.09B | Nov 12, 2025 | NEW |
TENOR CAPITAL MANAGEMENT CO., L.P. blank checks | 1.50M | 5.43% | 5.43% | $15.07B | Nov 14, 2025 | — held |
MMCAP INTERNATIONAL INC. SPC blank checks | 1.35M | 4.89% | 4.89% | $13.56B | Nov 10, 2025 | NEW |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND blank checks | 1.25M | 4.53% | 4.53% | $12.56B | Nov 13, 2025 | — held |
D. E. SHAW & CO., INC. blank checks | 1.25M | 4.52% | 4.52% | $12.54B | Nov 14, 2025 | ▲ 1.20M |
AQR ARBITRAGE LLC blank checks | 1.05M | 3.80% | 3.80% | $10.54B | Nov 14, 2025 | NEW |
GLAZER CAPITAL, LLC blank checks | 1.04M | 3.77% | 3.77% | $10.46B | Nov 13, 2025 | ▼ 2.5K |
MAGNETAR FINANCIAL LLC blank checks | 1.00M | 3.62% | 3.62% | $10.04B | Nov 13, 2025 | — held |
LMR PARTNERS LLP blank checks | 1.00M | 3.62% | 3.62% | $10.04B | Nov 14, 2025 | — held |
TWO SIGMA INVESTMENTS, LP blank checks | 837.0K | 3.03% | 3.03% | $8.41B | Nov 14, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
7
Increased
+2.25M shares20
New Positions
first time holders7
Decreased
−689.2K shares0
Sold Out
fully exitedNet shares change (top 50)
+1.56M
+2.25M / −689.2K
Net new holders
+20
20 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CGCT insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
11
Buy transactions
1
Sell transactions
11.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
CGC III Sponsor LLC 10 percent owner | May 21, 2026 | Purchase | 6,089 | $10.38 | $63.2K | 1.47M | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | May 1, 2026 | Gift | 8,195 | — | — | 1.46M | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 16, 2026 | Purchase | 100,000 | $10.33 | $1.03M | 1.47M | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 15, 2026 | Purchase | 100,000 | $10.32 | $1.03M | 1.37M | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 17, 2026 | Purchase | 28,522 | $11.50 | $328.0K | 324.1K | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 16, 2026 | Purchase | 152,100 | $11.50 | $1.75M | 295.6K | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 15, 2026 | Purchase | 34,963 | $11.50 | $402.1K | 143.5K | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 8, 2026 | Purchase | 100,000 | $10.30 | $1.03M | 1.27M | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 7, 2026 | Purchase | 100,000 | $10.30 | $1.03M | 1.17M | Form 4 ↗ |
CGC III Sponsor LLC 10 percent owner | Apr 6, 2026 | Purchase | 100,000 | $10.31 | $1.03M | 1.07M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Cartesian Growth Corporation III (CGCT) is primarily owned by institutional investors, who hold approximately 87.3% of total shares outstanding. Company insiders own approximately 0.00%, while retail and public investors account for the remaining 12.68%.
The largest institutional shareholder of Cartesian Growth Corporation III is PICTON MAHONEY ASSET MANAGEMENT, holding approximately 2.00 million shares — equal to 7.25% of outstanding shares — as of September 30, 2025.
A total of 52 institutional investors currently hold CGCT stock, with a combined institutional value of approximately $242,074,403 as of the most recent 13F filing period.
Frequently asked questions
CGCT ownershipCartesian Growth Corporation III (CGCT) is primarily owned by institutional investors, who hold approximately 87.3% of shares. The largest shareholder is PICTON MAHONEY ASSET MANAGEMENT with a 7.25% stake. Company insiders hold 0.00%. Data sourced from SEC Form 13F as of September 30, 2025.