Cosan S.A. (CSAN) Insider Trading
Over the last 3 months, CSAN insiders made 3 open-market buys and 4 sales, a net sale of -$216K (SEC Form 4). Over the last 6 months, 45 institutions increased and 52 reduced their position (13F).
Insider Activity
Sentiment
43/100
Buys (3m)
3
Sells (3m)
4
Net (3m)
-$216.4K
Insiders buying
Insider trades by month Buys Sells
May
Jun
Context3-month price -30.1%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 9, 2026 | Cordes Burkhard Ottodirector | Buy | 89,000 | $4.47 |
| Jun 9, 2026 | Cordes Burkhard Ottodirector | Buy | 50,000 | $4.26 |
| Jun 9, 2026 | Cordes Burkhard Ottodirector | Buy | 10,000 | $4.27 |
| May 26, 2026 | Mello Rubens Ometto Silveiradirector | Sell | 77,640 | $3.44 |
| May 21, 2026 | Drummond Maria Rita de Carvalhoofficer: Chief Legal Officer | Sell | 35,800 | $5.57 |
| May 21, 2026 | Drummond Maria Rita de Carvalhoofficer: Chief Legal Officer | Sell | 37,400 | $5.48 |
| May 21, 2026 | Drummond Maria Rita de Carvalhoofficer: Chief Legal Officer | Sell | 36,200 | $5.48 |
Source: CSAN SEC Form 4 filings, latest Jun 9, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their CSAN positions over the last 6 months (SEC Form 13F).
Increased
45
New positions
40
Reduced
52
Sold out
40
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 4.1M | Feb 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 3.8M | May 14, 2026 |
| UBS GROUP AG | Increased | 3.5M | Jan 29, 2026 |
| MONACO ASSET MANAGEMENT SAM | Increased | 3.3M | May 11, 2026 |
| MONACO ASSET MANAGEMENT SAM | Increased | 3.0M | Feb 10, 2026 |
| MARSHALL WACE, LLP | Increased | 2.4M | May 15, 2026 |
| Aquamarine Financial (Cayman) Ltd | New Position | 2.2M | Jan 12, 2026 |
| Aquamarine Financial (Cayman) Ltd | Unchanged | 2.1M | May 15, 2026 |
| Aquamarine Financial (Cayman) Ltd | Reduced | 2.1M | Jan 28, 2026 |
| MORGAN STANLEY | Reduced | 1.3M | May 15, 2026 |
| MORGAN STANLEY | Reduced | 1.1M | Feb 13, 2026 |
| MARSHALL WACE, LLP | Increased | 869K | Feb 13, 2026 |
| UBS GROUP AG | Reduced | 863K | May 5, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | Increased | 777K | Feb 17, 2026 |
| JANE STREET GROUP, LLC | Increased | 597K | May 12, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.