Over 12 months, Cosan S.A. saw more buying than selling from its insiders — purchases of about $1.4 million against sales of $870,000.
Biggest single buyer: Cordes Burkhard Otto, Director, with roughly $398,000.
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 |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Cordes Burkhard Otto | Director | Buy | 10,000 | $4.25 | $42K | SEC |
| Sep 15, 2026 | Cordes Burkhard Otto | Director | Buy | 10,000 | $4.27 | $43K | SEC |
| Sep 15, 2026 | Cordes Burkhard Otto | Director | Buy | 89,000 | $4.47 | $398K | SEC |
| Sep 15, 2026 | Cordes Burkhard Otto | Director | Buy | 50,000 | $4.26 | $213K | SEC |
| Jun 9, 2026 | Cordes Burkhard Otto | Director | Buy | 10,000 | $4.27 | $43K | SEC |
| Jun 9, 2026 | Cordes Burkhard Otto | Director | Buy | 10,000 | $4.25 | $42K | SEC |
| Jun 9, 2026 | Cordes Burkhard Otto | Director | Buy | 50,000 | $4.26 | $213K | SEC |
| Jun 9, 2026 | Cordes Burkhard Otto | Director | Buy | 89,000 | $4.47 | $398K | SEC |
| May 26, 2026 | Mello Rubens Ometto Silveira | Director | Sell | 77,640 | $3.44 | $267K | SEC |
| May 21, 2026 | Drummond Maria Rita de Carvalho | Executive Officer | Sell | 35,800 | $5.57 | $199K | SEC |
| May 21, 2026 | Drummond Maria Rita de Carvalho | Executive Officer | Sell | 36,200 | $5.48 | $198K | SEC |
| May 21, 2026 | Drummond Maria Rita de Carvalho | Executive Officer | Sell | 37,400 | $5.48 | $205K | SEC |
In the last 12 months Cosan S.A. insiders made open-market purchases worth about $1.4 million and sales worth about $870,000. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in CSAN was filed on 2026-09-15.
No congressional trades in CSAN 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).