No open-market selling at Cosan S.A. in the past year, which is unusual. Instead one executives and directors picked up about $23.8 million worth of CSAN3.
Martins Marcelo Eduardo (CEO) made the biggest buy, worth around $12.5 million. That includes C-suite money, which tends to get the most attention.
No open-market insider buying or selling in the last full quarter. Insiders bought in 1 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| May 21, 2026 | Martins Marcelo Eduardo | CEO | Buy | 1,599,086 | $7.05 | $11.3M | SEC |
| May 21, 2026 | Martins Marcelo Eduardo | CEO | Buy | 2,441,528 | $5.14 | $12.5M | SEC |
In the last 12 months Cosan S.A. insiders made open-market purchases worth about $23.8 million and sales worth about $0. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in CSAN3 was filed on 2026-05-21.
No congressional trades in CSAN3 were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).