1 insider has bought $24m of Cosan S.A. shares across 2 disclosed dealings since April 2026. 2 of those have been scored against our six-point signal check.
| May 19, 2026 | Martins Marcelo Eduardo — Chief Executive Officer | $12,549,454 |
| Apr 10, 2026 | Martins Marcelo Eduardo — Chief Executive Officer | $11,270,678 |