BR Industrial Conglomerates

Cosan S.A. (CSAN3)

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Track

Cosan S.A. recorded various insider trading transactions between April and May 2026. Notable activity included significant share acquisitions by the Chief Executive Officer and Burkhard Otto Cordes, alongside divestments from other key personnel. Since the most recent recorded movement occurred over three months ago, no current market performance analysis is provided.
Ticker: CSAN3 Exchange: SAO
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
401.64
Quantity 87,975 +36.9%
Value US$3,369,159
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
162.47
Quantity 82,428 +11.4%
Value US$2,330,248
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
22.70
Quantity 33,817 +37.5%
Value US$1,942,714
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
4.25
Quantity 10,000 +0.7%
Value US$42,500
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
4.26
Quantity 50,000 +3.5%
Value US$213,000
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
4.27
Quantity 10,000 +0.7%
Value US$42,700
Martins Marcelo Eduardo Chief Executive Officer Executive Director
Transaction date
Purchase
Price
5.14
Quantity 2,441,528 +99.7%
Value US$12,549,454
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
4.47
Quantity 89,000 +6.6%
Value US$397,830
Cordes Burkhard Otto Non-Executive Director
Transaction date
Purchase
Price
4.47
Quantity 89,000 +6.6%
Value US$397,830
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
2026-09-15 2026-05-26 B Purchase
Cordes Burkhard Otto
Non-Executive Director
87,975 +36.9%
401.64
US$3,369,159 		87,975 +36.9% 401.64 US$3,369,159
2026-09-15 2026-05-26 B Purchase
Cordes Burkhard Otto
Non-Executive Director
82,428 +11.4%
162.47
US$2,330,248 		82,428 +11.4% 162.47 US$2,330,248
2026-09-15 2026-05-26 B Purchase
Cordes Burkhard Otto
Non-Executive Director
33,817 +37.5%
22.70
US$1,942,714 		33,817 +37.5% 22.70 US$1,942,714
2026-06-09 2026-05-26 B Purchase
Cordes Burkhard Otto
Non-Executive Director
10,000 +0.7%
4.25
US$42,500 		10,000 +0.7% 4.25 US$42,500
2026-06-09 2026-05-26 B Purchase
Cordes Burkhard Otto
Non-Executive Director
50,000 +3.5%
4.26
US$213,000 		50,000 +3.5% 4.26 US$213,000
2026-06-09 2026-05-26 B Purchase
Cordes Burkhard Otto
Non-Executive Director
10,000 +0.7%
4.27
US$42,700 		10,000 +0.7% 4.27 US$42,700
2026-05-26 2026-05-22 S Sale
Mello Rubens Ometto Silveira
Non-Executive Director
77,640 -100.0%
3.44
US$267,082 		77,640 -100.0% 3.44 US$267,082
2026-05-21 2026-05-19 B Purchase
Martins Marcelo Eduardo

Chief Executive Officer

Executive Director
2,441,528 +99.7%
5.14
US$12,549,454 		2,441,528 +99.7% 5.14 US$12,549,454
2026-09-15 2026-05-18 B Purchase
Cordes Burkhard Otto
Non-Executive Director
89,000 +6.6%
4.47
US$397,830 		89,000 +6.6% 4.47 US$397,830
2026-06-09 2026-05-18 B Purchase
Cordes Burkhard Otto
Non-Executive Director
89,000 +6.6%
4.47
US$397,830 		89,000 +6.6% 4.47 US$397,830
2026-05-21 2026-04-17 S Sale
Drummond Maria Rita de Carvalho

Chief Legal Officer

Officer
37,400 -1.7%
5.48
US$204,915 		37,400 -1.7% 5.48 US$204,915
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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