United States

Cosan S.A.

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Cosan S.A. witnessed significant insider activity recently, highlighted by substantial share acquisitions from CEO Marcelo Eduardo Martins. Conversely, other executives, including Maria Rita de Carvalho Drummond and Rubens Ometto Silveira Mello, executed multiple sales. These transactions reflect diverse individual portfolio management strategies amidst ongoing corporate developments.
No insider activity signals detected

Insider trades have not triggered unusual activity signals for this company.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Martins Marcelo Eduardo Chief Executive Officer Executive Director
Transaction date
Purchase
Price
101.41
Quantity 15,769 -30.5%
Value US$3,700,711
Martins Marcelo Eduardo Chief Executive Officer Executive Director
Transaction date
Purchase
Price
7.05
Quantity 1,599,086 +105.1%
Value US$11,270,678
Palania Corp Director Non-Executive Director
Transaction date
Proposed sale
Price
12.40
Quantity 150,000
Value US$1,860,000
Palania Corp Officer Officer
Transaction date
Proposed sale
Price
12.21
Quantity 200,000
Value US$2,441,860
Palania Corp Director Non-Executive Director
Transaction date
Proposed sale
Price
12.29
Quantity 256,723
Value US$3,155,725
Palania Corp Director Non-Executive Director
Transaction date
Proposed sale
Price
12.45
Quantity 38,241
Value US$475,981
Palania Corp Director Non-Executive Director
Transaction date
Proposed sale
Price
15.32
Quantity 200,000
Value US$3,064,000
Burkhard Otto Cordes Director Non-Executive Director
Transaction date
Proposed sale
Price
12.68
Quantity 9,500
Value US$120,427
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-26 2026-05-22 S Sale
Mello Rubens Ometto Silveira
Non-Executive Director
68,800 -43.2%
332.12
US$547,798 		68,800 -43.2% 332.12 US$547,798
2026-05-21 2026-05-19 B Purchase
Martins Marcelo Eduardo

Chief Executive Officer

Executive Director
15,769 -30.5%
101.41
US$3,700,711 		15,769 -30.5% 101.41 US$3,700,711
2026-05-21 2026-04-17 S Sale
Drummond Maria Rita de Carvalho

Chief Legal Officer

Officer
4,227 +37.3%
204.87
US$4,609,954 		4,227 +37.3% 204.87 US$4,609,954
2026-05-21 2026-04-16 S Sale
Drummond Maria Rita de Carvalho

Chief Legal Officer

Officer
36,200 -1.6%
5.48
US$198,488 		36,200 -1.6% 5.48 US$198,488
2026-05-21 2026-04-15 S Sale
Drummond Maria Rita de Carvalho

Chief Legal Officer

Officer
35,800 -1.6%
5.57
US$199,406 		35,800 -1.6% 5.57 US$199,406
2026-05-21 2026-04-10 B Purchase
Martins Marcelo Eduardo

Chief Executive Officer

Executive Director
1,599,086 +105.1%
7.05
US$11,270,678 		1,599,086 +105.1% 7.05 US$11,270,678
2024-04-04 2024-04-04 PrS Proposed sale
Palania Corp

Director

Non-Executive Director
150,000
12.40
US$1,860,000 		150,000 12.40 US$1,860,000
2024-04-03 2024-04-03 PrS Proposed sale
Palania Corp

Officer

Officer
200,000
12.21
US$2,441,860 		200,000 12.21 US$2,441,860
2024-04-02 2024-04-02 PrS Proposed sale
Palania Corp

Director

Non-Executive Director
256,723
12.29
US$3,155,725 		256,723 12.29 US$3,155,725
2024-04-01 2024-04-01 PrS Proposed sale
Palania Corp

Director

Non-Executive Director
38,241
12.45
US$475,981 		38,241 12.45 US$475,981
2023-07-05 2023-07-05 PrS Proposed sale
Palania Corp

Director

Non-Executive Director
200,000
15.32
US$3,064,000 		200,000 15.32 US$3,064,000
2023-04-27 2023-04-14 PrS Proposed sale
Burkhard Otto Cordes

Director

Non-Executive Director
9,500
12.68
US$120,427 		9,500 12.68 US$120,427
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