CSAN · Insider Trading
Cosan S.A. American Depositary Shares (each representing four Common Shares)
Every open-market purchase and sale reported by CSAN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-15 | Burkhard Otto Cordes | Director | Buy | +159,000 | +$696.03K |
| 2026-09-15 | Rafael Bergman | — | J | — | — |
| 2026-09-15 | Maria Rita de Carvalho Drummond | — | J | — | — |
| 2026-08-12 | Maria Rita de Carvalho Drummond | Chief Legal Officer | J | — | — |
| 2026-08-12 | Marcelo Eduardo Martins | Chief Executive Officer | J | — | — |
| 2026-05-26 | Rubens Ometto Silveira Mello | Director | Sell | −77,640 | −$267.08K |
| 2026-05-21 | Maria Rita de Carvalho Drummond | Chief Legal Officer | MIXED | −109,400 | −$602.81K |
| 2026-05-21 | Marcelo Eduardo Martins | Chief Executive Officer | MIXED | +46,575 | +$328.27K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Rubens Ometto Silveira Mello | Director | 712,702,674 | $1.96B |
| Burkhard Otto Cordes | Director | 2,366,610 | $6.51M |
| Marcelo Eduardo Martins | Chief Executive Officer | 2,074,530 | $5.70M |
| Maria Rita de Carvalho Drummond | Chief Legal Officer | 672,888 | $1.85M |
| Rafael Bergman | — | 272,714 | $749.96K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the CSAN quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.