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Cosan S.A.

CSAN · Retail-Auto Dealers & Gasoline Stations · EDGAR filings ↗

Reference price $3.44 — last insider sale, 2026-05-22 (estimated from the dated SEC Form 4 price — not a live quote)

Grade

D52

Large Brazilian conglomerate posting consecutive net losses with heavy leverage despite a sizable operating base.

Strengths

Risks

Notable findings

Key metrics

Gross margin
31.2%
Operating margin
17.5%
Net margin
-18.6%
Return on equity
-20.7%
Return on assets
-5.8%
ROIC
5.7%
Revenue growth (QoQ)
-12.6%
Net-income growth
-231.1%
Debt / equity
1.7×
Interest coverage
1.0×
Current ratio
1.7×
Tangible book value
$6.4B
Cash & investments
$2.7B

Insider transactions · last 18 months

DateInsiderTypeSharesPrice
2026-05-22Mello Rubens Ometto SilveiraSell78K$3.44
2026-05-19Martins Marcelo EduardoBuy2.4M$5.14
2026-05-19Drummond Maria Rita de CarvalhoOther281K$5.14
2026-05-19Martins Marcelo EduardoOther2.4M$5.14
2026-05-19Drummond Maria Rita de CarvalhoOther281K$5.14
2026-04-17Drummond Maria Rita de CarvalhoSell37K$5.48
2026-04-16Drummond Maria Rita de CarvalhoSell36K$5.48
2026-04-15Drummond Maria Rita de CarvalhoSell36K$5.57
2026-04-10Martins Marcelo EduardoOther1.6M$7.05
2026-04-10Martins Marcelo EduardoBuy1.6M$7.05

All non-derivative Form 4 activity (SEC), newest first.

Recent filings

FormFiledPeriodAccession
20-F2026-04-102025-12-310001554855-26-000590 ↗
20-F2025-04-302024-12-310001554855-25-000406 ↗
20-F2024-11-082023-12-310001554855-24-000744 ↗
20-F2023-04-242022-12-310001554855-23-000287 ↗
20-F2022-05-162021-12-310001554855-22-000330 ↗
20-F2021-04-302020-12-310001554855-21-000173 ↗