Cosan S.A. also files under CSAN3; those filings are included. Filings under CSAN by Cosan Ltd. (CIK 0001402902) from May 18, 2026 to May 26, 2026 belong to a different issuer and are not shown.
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 10, 2026 | Martins Marcelo Eduardo | Chief Executive Officer, Director | Other(J) | 276K | $3.99 | $1.1M |
| Aug 10, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Other(J) | 104K | $3.99 | $414K |
| Aug 10, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Other(J) | 104K | $3.99 | $414K |
| Aug 10, 2026 | Martins Marcelo Eduardo | Chief Executive Officer, Director | Other(J) | 276K | $3.99 | $1.1M |
| May 22, 2026 | Mello Rubens Ometto Silveira | Director | Sell(S) | 78K | $3.44 | $267K |
| May 19, 2026 | Martins Marcelo Eduardo | Chief Executive Officer, Director | Other(J) | 2.4M | $5.14 | $12.5M |
| May 19, 2026 | Martins Marcelo Eduardo | Chief Executive Officer, Director | Buy(P) | 2.4M | $5.14 | $12.5M |
| May 19, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Other(J) | 281K | $5.14 | $1.4M |
| May 19, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Other(J) | 281K | $5.14 | $1.4M |
| Apr 17, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Sell(S) | 37K | $5.48 | $205K |
| Apr 16, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Sell(S) | 36K | $5.48 | $198K |
| Apr 15, 2026 | Drummond Maria Rita de Carvalho | Chief Legal Officer | Sell(S) | 36K | $5.57 | $199K |
| Apr 10, 2026 | Martins Marcelo Eduardo | Chief Executive Officer, Director | Other(J) | 1.6M | $7.05 | $10.9M |
| Apr 10, 2026 | Martins Marcelo Eduardo | Chief Executive Officer, Director | Buy(P) | 1.6M | $7.05 | $11.3M |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: Cosan S.A., SEC CIK 0001430162. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under CSAN and shows every filing by that issuer (also filed as CSAN3). Earlier filings under the same symbol by another issuer are left out.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-12. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for CSAN