CSAN insider transaction filings
Cosan S.A. — 10 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-09-15. Screen CSAN transaction legs live →
Insider transaction summary — last 90 days
2026-06-24 to 2026-09-22, from the filings listed below: 7 Form 4 filings. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 4 legs across 1 filing by 1 insider — 159,000 shares, $696,030 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
- Largest priced transaction: purchase of 89,000 shares @ $4.47 ($397,830) by Cordes Burkhard Otto, filed 2026-09-15.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Cordes Burkhard Otto — Director | 1 | 4 legs · 159,000 sh · $696,030 | — | — |
| Drummond Maria Rita de Carvalho | 3 | — | — | 6 |
| Bergman Rafael | 2 | — | — | 4 |
| Martins Marcelo Eduardo — Chief Executive Officer, Director | 1 | — | — | 2 |
Recent Form 4 filings — Cosan S.A.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-15 | 4 | Bergman Rafael | Other (J): 55,242 @ $3.90 · Other (J): 55,242 @ $3.90 | EDGAR |
| 2026-09-15 | 4 | Drummond Maria Rita de Carvalho | Other (J): 150,496 @ $3.90 · Other (J): 150,496 @ $3.90 | EDGAR |
| 2026-09-15 | 4 | Cordes Burkhard Otto — Director | Purchase (P): 89,000 @ $4.47 · Purchase (P): 10,000 @ $4.27 · Purchase (P): 50,000 @ $4.26 · Purchase (P): 10,000 @ $4.25 | EDGAR |
| 2026-09-15 | 4 | Bergman Rafael | Other (J): 55,242 @ $3.90 · Other (J): 55,242 @ $3.90 | EDGAR |
| 2026-09-15 | 4 | Drummond Maria Rita de Carvalho | Other (J): 150,496 @ $3.90 · Other (J): 150,496 @ $3.90 | EDGAR |
| 2026-08-12 | 4 | Drummond Maria Rita de Carvalho — Chief Legal Officer | Other (J): 103,765 @ $3.99 · Other (J): 103,765 @ $3.99 | EDGAR |
| 2026-08-12 | 4 | Martins Marcelo Eduardo — Chief Executive Officer, Director | Other (J): 276,475 @ $3.99 · Other (J): 276,475 @ $3.99 | EDGAR |
| 2026-06-09 | 4 | Cordes Burkhard Otto — Director | Purchase (P): 89,000 @ $4.47 · Purchase (P): 10,000 @ $4.27 · Purchase (P): 50,000 @ $4.26 · Purchase (P): 10,000 @ $4.25 | EDGAR |
| 2026-05-26 | 4 | Mello Rubens Ometto Silveira — Director | Sale (S): 77,640 @ $3.44 | EDGAR |
| 2026-05-21 | 4 | Drummond Maria Rita de Carvalho — Chief Legal Officer | Sale (S): 35,800 @ $5.57 · Sale (S): 36,200 @ $5.48 · Sale (S): 37,400 @ $5.48 · Other (J): 280,954 @ $5.14 · Other (J): 280,954 @ $5.14 | EDGAR |
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