CSAN — Cosan S.A.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2021-03-11.
Performance
Technicals
Others in Consumer Discretionary
Measured signals that fired on CSAN
| date | signal | measured base rate |
|---|---|---|
| 2026-08-14 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-05-26 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-04-01 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-10 | Martins Marcelo Eduardo Chief Executive Officer | Other Acquisition/Disposition | 276.5K | 3.99 | 1.1M |
| 2026-08-10 | Martins Marcelo Eduardo Chief Executive Officer | Other Acquisition/Disposition | 276.5K | 3.99 | 1.1M |
| 2026-08-10 | Drummond Maria Rita de Carvalho Chief Legal Officer | Other Acquisition/Disposition | 103.8K | 3.99 | 414.0K |
| 2026-08-10 | Drummond Maria Rita de Carvalho Chief Legal Officer | Other Acquisition/Disposition | 103.8K | 3.99 | 414.0K |
| 2026-05-22 | Mello Rubens Ometto Silveira Director | Open-market sale | 77.6K | 3.44 | 267.1K |
| 2026-05-19 | Martins Marcelo Eduardo Chief Executive Officer | Other Acquisition/Disposition | 2.4M | 5.14 | 12.5M |
| 2026-05-19 | Martins Marcelo Eduardo Chief Executive Officer | Open-market purchase | 2.4M | 5.14 | 12.5M |
| 2026-05-19 | Drummond Maria Rita de Carvalho Chief Legal Officer | Other Acquisition/Disposition | 281.0K | 5.14 | 1.4M |
| 2026-05-19 | Drummond Maria Rita de Carvalho Chief Legal Officer | Other Acquisition/Disposition | 281.0K | 5.14 | 1.4M |
| 2026-04-17 | Drummond Maria Rita de Carvalho Chief Legal Officer | Open-market sale | 37.4K | 5.48 | 204.9K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 15.7M | 3.8M |
| Monaco Asset Management SAM | 13.7M | 3.3M |
| MARSHALL WACE, LLP | 9.8M | 2.4M |
| Aquamarine Financial (Cayman) Ltd | 8.6M | 2.1M |
| MORGAN STANLEY | 5.6M | 1.3M |
| UBS Group AG | 3.6M | 863.4K |
| JANE STREET GROUP, LLC | 2.5M | 596.6K |
| TWO SIGMA INVESTMENTS, LP | 2.1M | 502.1K |
| CITADEL ADVISORS LLC | 1.6M | 390.2K |
| Massar Capital Management, LP | 1.2M | 300.2K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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