Cosan S.A.
CSAN- Exchange
- NYSE
- Industry
- Retail-Auto Dealers & Gasoline Stations
- SEC CIK
- 0001430162
No open-market purchases or sales by Cosan S.A. insiders were filed in the last 90 days; 63 institutions reported holding it in 13F filings for Q2 2026, worth $45.9M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Cosan S.A. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Cosan S.A., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Bergman Rafael | Other: Former Chief Finance Officer | 0 | Sep 15, 2026 | 1 |
| Drummond Maria Rita de Carvalho | Other: Former Chief Legal Officer | 0 | Sep 15, 2026 | 3 |
| Cordes Burkhard Otto | Director | 1,509,000Indirect | Sep 15, 2026 | 1 |
| Martins Marcelo Eduardo | Chief Executive Officer | 2,074,530 | Aug 12, 2026 | 2 |
| Mello Rubens Ometto Silveira | Director | 0Indirect | May 26, 2026 | 1 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 (view filing)4:41 PM ET | May 18-26 | 120 daysLate | Cordes Burkhard OttoDirector | PPurchaseCOMMON STOCK (BVMF: CSAN3) | +159.0K | $4.38 | +$696.0K | +11.8%1.51M after | 4 lotsPrice outlier |
| May 26, 2026 (view filing) | May 22 | 4 days | Mello Rubens Ometto SilveiraDirector | SSale | −77.6K | $3.44 | −$267.1K | −100.0%0 after | |
| May 21, 2026 (view filing) | Apr 10-May 19 | 41 daysLate | Martins Marcelo EduardoChief Executive Officer | PPurchaseCOMMON STOCK (BVMF: CSAN3) | +4.04M | $5.90 | +$23.8M | +475.5%4.89M after | 2 lotsPrice outlier |
| May 21, 2026 (view filing) | Apr 15-17 | 36 daysLate | Drummond Maria Rita de CarvalhoChief Legal Officer | SSaleCOMMON STOCK (BVMF: CSAN3) | −109.4K | $5.51 | −$602.7K | −4.9%2.13M after | 3 lotsPrice outlier |